Emerge - ABS, PC, PC+ABS - Trinseo

Kunststoffe international, Formed Pultrusion Profiles
...nisms such as collapse of the profile cross-section or matrix failure are also avoided. Since the length of the continuous fibers remains constant, they must slide against each other during the forming process so that the ends of the profile emerge at an angle after forming. Validation of the Approach and ‧Investigation ‧of Process Parameters In preliminary tests, the effectiveness of the approach described above was demonstrated by means of bending tests on an automated test rig. Here, pultrud...

Kunststoffe international, 2005-11-21, All-round Supplier for Polyurethane Systems
...nstitute an important step along the road to "no-fogging" materials. Lighter-weight flexible foams for car seats with previously unattained physical properties and latex-like slabstock foam (e. g. for mattresses) are just two of the items to emerge from research into the new technology. "We have only just begun", says Engels, "to exploit the synergies between the research projects and research results in the former Lyondell facilities and our own activities. In the medium ter...

Kunststoffe international, 2005-11-21, Boost for the Economy: Becoming More Competitive through Co-operation
...to more complex topics. At the end of it all, there were also far fewer concrete competitive situations than had been feared. The newly created co-operation culture is seen as the most important success to emerge from this initiative. Economic Results An empirical evaluation of the Kunststoff-Cluster carried out in 2003 with the aim of evaluating the cluster-oriented economic and technology policy confirmed the success: "The cluster initiatives have proved effective on a long-term basis, a...

Kunststoffe international, 2005-11-21, Cooling in Miniature
...vity of Be/Cu. From the comparison of the pressure drops (dp) for various needle inside diameters, Di = 1.1 and 1.6 mm, it was found that the pressure drop rises strongly from 13 to 33 bar with increasing miniaturisation. One very obvious point to emerge from the study is that convective heat transfer is much more effective than heat conduction. The good heat conductors are left with a supplementary function in mould areas which can not be reached even with miniaturised liquid or gas cooling sys...

Kunststoffe international, 2005-11-21, Driving the Automotive Industry: Engineering Elastomers
... is increasing concentration and focus on product groups. Regardless of this, the trend towards relocating production of standard products within the expanded European Union continues to advance. In the future, China and India will also increasingly emerge both as markets and production locations for engineering elastomer products. Werner P. Lauhus The European Union, and particularly Germany, continue to be global leaders in elastomer product competence. Within the elastomer-manufacturing indus...

Kunststoffe international, 2005-11-21, Exhibition Preview: North American and Canadian Products at K 2004
...ited to impregnating continuous-fiber reinforcements, facilitating production of thermoplastic composites. Rotational molding is another use that is being actively explored. Innovative Elastomers Emerge The biggest news from DuPont is its new class of engineering thermoplastic vulcanizates (ETPVs) for automotive and industrial uses. Composed of a thermoplastic copolyester matrix and a crosslinked ethylene-acrylate rubber, the new material resists oil, grease, and chemicals over a temperature ra...

Kunststoffe international, 2005-11-21, Fibre-reinforced Plastics: Naturally Better
...r and polyamide 6. Many physical properties are of the order of those of glass. Sisal, in addition to good strength, also shows only low dusting and shedding of filaments during process. It is therefore not surprising that attractive potential has emerged for lightweight structures with natural fibres; compared with glass-fibre-reinforced plastic parts, experts predict that natural fibres permit weight savings of up to 15% for approximately the same property profile. The price for suitable sisal...

Kunststoffe international, 2005-11-21, Film Extrusion: PET Extrusion without Pre-drying?
...). All the know-how drawn from this project was integrated into the conception and design of a further extrusion line (80mm), which will shortly go into operation in Reifenhäuser's pilot plant. This article looks at some of the key results to emerge from the investigations carried out to date, and also outlines the further need for development derived from them. Avoiding Chain Degradation One of the big challenges when processing PET is to limit the oxidative, mechanical, thermal and above ...

Kunststoffe international, 2005-11-21, High-Grade Film Production
.... Certain products call for a bead of melt on the main cooling roll, on the upper side of the film, while others can only be produced with a melt bead on the lower side. With a horizontal roll arrangement, respectively a vertical die, the melt will emerge in an upwards direction, providing flexibility in respect of the position of the bead, as well as good accessibility. No discussions will be required about polishing the second surface of the web, since the SML Sleeve-Touch process ensures effe...

Kunststoffe international, 2005-11-21, How Much Drive Would You Like Then?
...n the processing cycle. Examples of such processes include injection moulding and blow moulding. Figure 1 shows the power consumption of continuous and discontinuous processes taking the example of injection moulding and extrusion. Other differences emerge when drive technology is observed, in addition to the power requirement. The continuous processes, such as extrusion, require almost exclusively rotational movements, which are generated by electromechanical drives. In the case of discontinuou...

Kunststoffe international, 2005-11-21, Increased Demand: Polyoxymethylene (Polyacetals, POM)
...rica follows with 126000 tonnes/annum that corresponds to about 20%. In the breakdown according to fields of application, the automotive industry, with an average of about 36%, remains the world’s biggest POM consumer. However, clear differences emerge between the three world regions (Fig.3): the share of 40% for America and 38% for Europe reflects the high significance of the automotive industry in these markets, while in Asia, automotive engineering only contributes 32% to POM consumption, and...

Kunststoffe international, 2005-11-21, Injection Moulding Trends: Increased Complexity and Tighter Specifications
...or the future are not only multi-component injection moulding but also powder injection moulding, and the processing of liquid silicone rubber (LSR), elastomers, thermosets and PET, and the gas techniques. New applications will also emerge for non-plastics, such as wood or natural fibres. There will be considerably fewer market developments in the field of injection moulding than in extrusion. Another type of process that is clearly becoming established are the special-purpose processes, such as...

Kunststoffe international, 2005-11-21, Isolator Zone Concept: Stable Injection Moulding in the ISO5/GMP-A Cleanroom
... first turned inside out by a robot in the mould, supplied to a secondary finishing station and finally transferred to a packaging machine (Fig.6). Because of the high temperatures in the mould, the teats are sterile as they emerge from the machine, but the route between the mould and packaging line is critical. The mould region of the injection moulding machine, the robot, the processing machine and the insertion and sealing station of the packaging machine were therefore encapsulated in a clas...

Kunststoffe international, 2005-11-21, Lightweight Construction: LWRT Technique for Car Underbody Covers
...es were protected by a liquid PVC underseal. The directive for the disposal of post-consumer vehicles, which will come into force in 2005, rules out the use of PVC car undercoats. In its wake, a growing market for alternative concepts has begun to emerge. So far, only GMT-based and D-LFT-based underbody covers have become established in the market. While they offer advantages over PVC coatings in terms of weight and recycling, they have already reached their limits as far as weight reduction is ...

Kunststoffe international, 2005-11-21, Market Report: Taiwan’s Plastics Industry
...is particularly upbeat about India which, he says, is maturing into a strong competitor in the petrochemicals field. Reliance Industries Ltd., India’s leading petrochemical company, will emerge as a key player in the global arena in the years ahead. India and China will dominate the specialty chemicals sector. Machinery is Gaining in Importance While Taiwan has already established itself as a major player in raw-material production, the island’s industry is also increasingly asserting itsel...

Kunststoffe international, 2005-11-21, Melt Filtration: High-quality Materials from PET Recycling
...ck products to enter the melt flow when the screens are changed. Fully-automatic operation is achieved through the integrated screen cleaning facility. On standard filters, the machine operator is required to remove the soiled screens when they emerge from the melt channel and replace them with new ones. The screen disk with its screen cavities arranged in a ring pattern is completely encased by the two filter blocks. Screens can be inserted into the cavities via a hatch door which can be opene...

Kunststoffe international, 2005-11-21, Plastics in the Automotive Industry: Symbiosis between Design and Function
...ing and covering components. Scientists at Cologne University recently reported that full engine encapsulation offers considerable potential for fuel economy, so it is likely that a number of other interesting applications will emerge here for insulating foams. References 1 Kunststoffe im Automobil – Einsatz und Verwertung 2002. Verband der Kunststoff erzeugenden Industrie e.V. (VKE), Frankfurt; http://www.vke.de/download/pdf/autolang.pdf 2 Schwierige Suche nach dem Königsweg. DaimlerChrysler AG...

Kunststoffe international, 2005-11-21, Plastics Recycling: High Market Potential
...evertheless revealed a major deficit as regards people's knowledge about using recycled plastics. Uli Martin As long as the quality is satisfactory, consumers would prefer to buy products made of recycled plastics. This was one of the facts to emerge from a recent study carried out by Ecology Integrated Marketing & Research based in Heidelberg/Germany, which specialises in market surveys dealing with ecological products. Between September 2003 and January 2004, the company questioned a tot...

Kunststoffe international, 2005-11-21, Polypropylene
... product differentiation and, ultimately, support future healthy growth of the polypropylene market. Customers will become more demanding, necessitating supply chain management streamlining. Sales, Marketing and Logistics will be re-tooled, and the emergence of e-commerce will continue to bring a new dimension to the industry. New markets and producers will continue to emerge, such as Eastern Europe and the Middle East, thereby accelerating the globalisation of the industry. Fig. 1. World-wide...

Kunststoffe international, 2005-11-21, Polypropylene - An Alternative?
...ofiles are being tested by way of an alternative to other window materials. The experience acquired with polypropylene windows to date, together with their high innovation potential and good price-to-performance ratio has prompted hopes that PP will emerge as the prime alternative to other materials. Polypropylene (PP) has been produced on an industrial scale since 1957. Intensive development of the production technology, starting with the catalyst and proceeding right through to increasingly ...

Kunststoffe international, 2005-11-21, Polypropylene/Magnetite Compounds
...ecline in the strength data is not very surprising because the magnetite particles have an irregular shape with a low aspect ratio and thus stand out from reinforcing materials with a high aspect ratio. Another important characteristic value to emerge from the tensile test is the elongation at break (Fig.5). For the unfilled polypropylene, the elongation at break was 300%, but with increasing magnetite content it decreases rapidly, so that for polypropylene filled with 44% by vol. magnetite, the...

Kunststoffe international, 2005-11-21, Production Control: Press Process Transparency
...121 D-90766 Fürth Germany Fax +49(0)911/978-3321 E-mail: karin.kaljumae@fth2.siemens.de Code name: A&D GC 031/03 Fig.1. On over 30 presses complicated interior furnishings for all Airbus models emerge Fig.2. Side panels for the Airbus A320 in the tool of a large press Fig.3. Operating station at the line simplifies the operation and increases the transparency Fig.4. All important information of the water circulation on a picture Fig.5. Detailed attitudes of the temperature regulator can be ...

Kunststoffe international, 2005-11-21, Rubber Compounding: Online Quality Control
...matical analysis methods to describe the compounding process in the rubber mixer [1] and the inter-process relationships [2]. The online quality assurance system, for which a programming interface is shown in Fig.1, is the most recent result to emerge from this work [3]. It consists of a specially developed program based on the DIAdem measurement and analysis software (manufacturer: National Instruments Corporation), which is implemented in a mobile measuring and data recording unit. Unlike the...

Kunststoffe international, 2005-11-21, Strong Joint between Plastic and Metal
... the connection points in collar joining ensure play-free assembly, i.e. prevent movement of the parts relative to each other. Table1 shows a comparison of different mechanical assembly methods. The strength values achieved with collar joining emerge as good (shear stress) to average (normal stress). Outlook Collar joining opens up completely new possibilities for plastic-metal assembly. This innovative jointing technology now makes it possible to fully exploit the design advantages of PMA. Be...

Kunststoffe international, 2005-11-21, Strong Upturn: Polycarbonate (PC)
...ing Makrolon, Makroblend (PC+PET and PC+PBT) and Bayblend (PC + ABS). The company also has production sites in Europe and in the Nafta region. Other global manufacturers of (PC+ABS) blends are GE Advanced Materials (Cycoloy) and Dow (Pulse and Emerge). The Asia-Pacific region also features such major producers as Teijin (Multilon), Mitsubishi (lupilon), Cheil (Staroy), LG (Lupoy) and Chi Mei (Wonderloy). Process Advances and Service Some 90% of PC is produced by the phase transfer process, but m...

Kunststoffe international, 2005-11-21, The Future Role of the Plastics Producers
...potential. The plastics market is becoming increasingly transparent in overall terms. The displacement competition between the individual types of plastic is very much on the increase. Global competition will prevail, and new pricing mechanisms will emerge. The way in which logistics elements are managed will develop into a marketing instrument that is frequently decisive for a purchase decision. And this will increasingly form the basis for new, longer-term and more in-depth partnerships betwee...

Kunststoffe international, 2005-11-21, The Market for Masterbatches in Germany
...ch market in Germany will grow between 3.5 and 5 %. A healthy plastics market, growing at a rate of 3-4 %, will make a significant contribution to helping masterbatches expand at an above-average rate. Such promising prospects did, in fact, begin to emerge around September last year. With key sectors such as the automotive and packaging industries looking strong, plus the very healthy export situation, the outlook for the masterbatch segment in 2000 is very good indeed. The domestic economy also...

Kunststoffe international, 2005-11-21, Trends in Injection Moulding
...nks to plastic's capability for integration, many solutions can be integrated into one production operation. Receptacles for mounted units, conductor leads and fastening elements can be implemented directly in plastic. New applications will also emerge from metal/polymer composites. Microsystem technology is predicted to show similar growth to that of microelectronics 25 years ago. The miniaturization of sensors and actuators for the automotive industry, the use of microsystems for minimal-i...

Kunststoffe international, 2006-03-11, Thermoextraction as VDA 276 "Light": Rapid Emission-analytics Testing
...s thus to be developed for emission analytics which would permit more rapid product development (emission-optimised materials and components) and could possibly also be used for quality monitoring during component production. As the first result to emerge from these expert discussions, it was agreed to give priority to developing a rapid analytics system that was as simple and cheap as possible and would be accepted by all those involved. This would be suitable for product development and also f...

Kunststoffe international, 2006-07-04, Hybrid Machines: The Best of Both Worlds
...ions. The use of all-electric is even more challenging with larger machines and many traditional high-performance applications, such as thin-wall packaging and closures, are now moving into machines as large as 10000kN. As new technologies emerge, Husky continues to evaluate ways to improve the performance and efficiency of its machines and will apply the technology that provides the best payback to customers and deliver the performance they require. The Author Jim Stewart is Sales Manager for ...

Kunststoffe international, 2006-08-06, Conformal Cooling Channels: Cooling Complex Parts
...ption in development can be minimised by carrying out various operations in parallel. Besides the cylindrical part, a rectangular part is also thermally designed. In direct comparison to the circular part geometry, much greater advantages emerge concerning the cycle time reductions that can be achieved. The same maximum demoulding temperatures are achieved here within a period that is 10% shorter. Outlook Along with thermal design, the user should pay greater attention to mechanical design in ...

Kunststoffe international, 2006-09-08, Injector Technology for Water Assist: The Key to Success
...ss-section for introducing the water immediately before injection. It goes without saying that the injector must introduce the fluid in a controlled way into particular part regions. In addition, a number of other, partly contradictory requirements emerge: - leak tightness during water injection, - defined closing and opening movements (depending on the water retrieval concept), - minimum installed size, - high process reliability, and - ease of assembly and maintenance. Based on these requireme...

Kunststoffe international, 2006-10-30, Car Electronics: Producing Intricate Parts Economically
...xample, due to the lower melt viscosity lower injection and holding pressures are adequate. In the injection moulding process, by lowering the temperature of the melt the cooling time and hence the total cycle time can be reduced. New vistas also emerge for thin-walled parts: the less viscous Ultradur High Speed can flow in even thinner moulds and so can be used for producing quite novel structural parts. For this reason it is now possible to use PBT for manufacturing intricate components which...

Kunststoffe international, 2006-10-30, Roll Pelletiser: Novel Compacting and Pelletising Machine
...lls up with product the back roll remains free of product. Depending on the amount of product fed in the product reaches the end faces of the working roll after about 30 to 100 revolutions. There at each nip passage short tough strands of product emerge where, as described above, they are cut off by the disk cutters and carried away. The nip pressure produced in the narrow roll nip by the counterrotating rolls rises without difficulty to values in the region of three times the pressure attainab...

Kunststoffe international, 2007-02-13, An Eldorado for New Developments from Plastics
...king in collaboration with the Gerresheimer Wilden company we have developed a novel three-dimensional plastic structure derived from an expanded foam which is capable of allowing cells to grow into the third dimension. In this way a new product has emerged which is of interest not only to the pharmaceutical industry, which is now just launching it onto the market, but also to tissue engineering, i.e. to the laboratories which conduct research in the field of growing replacement tissues (see the...

Kunststoffe international, 2007-03-15, Recovery after Value Added Tax Shock
...ke their big break-through there. However more must be counted on. Great Wall has already sent some vehicles to Italy. Geely and Chery are studying the market and preparing for market entrance in 2008. Still the Chinese will emerge in our permission statistics before 2010. The two large market blocks the USA and Western Europe are reacting differently in 2007: In the USA the auto market is cooling off slightly at 16.58 million sales. That is 90,000 vehicle sales less than in 2006. In Western Eur...

Kunststoffe international, 2007-06-18, Economical Production with Complex Manufacturing Cell
...nufacturing process of the sensor, about 60% of the added value is supplied by the manufacturing cell. Sensitive Handling and Packaging of Magnetic Parts In the automated production of rotor magnets, the mouldings emerge magnetised from an eight-cavity mould. Gentle handling of the sensitive surfaces of the circular magnetic parts, with a gear wheel on one side, is therefore an important criterion (Fig.3). The manufactured parts – their diameter is 8mm, weight 0.4g – are components of a steppi...

Kunststoffe international, 2007-10-21, Bioplastics
...nued demand growth and unresolved technical questions. General market studies are only of limited help in a particular investment case. And the industry is still far from a guaranteed market such as that starting to emerge for renewable energies and biofuels. A survey of materials and the existing and projected production capacities for 2009 and 2011 is given in Tables 2 and 3. Highlights from Applications Technology In Europe, it is packaging applications that are seeing rapid development. Co...

Kunststoffe international, 2007-10-21, Fast-Cycle, High-Gloss Metallic Parts
...lastic parts of this type are to be found in cosmetics packaging, portable electronic devices and domestic appliances as well as in automotive interiors. Contrary to the case for the market trends in product design, no fundamental innovations have emerged in the further development of the manufacturing technology over the past years. For many decades, the most frequently employed processes have been electroplating and the vaporation coating of thin metal layers in conjunction with a protective c...

Kunststoffe international, 2007-10-21, Polycarbonate (PC) and Polycarbonate Blends
... the handle made of Bayblend in the current Golf (Fig. 7). (PC+ABS) yields components having excellent surface quality as a result of which electroplating can be efficiently carried out with minimum waste. The use of PC is beginning to emerge in the field of futuristic displays in instrument panels. The large-size displays are located in the region of the head impact absorber. For that reason various OEMs prescribe a transparent material which is impact-resistant over a wide range of temperatu...

Kunststoffe international, 2007-10-21, Polymethylmethacrylate (PMMA)
...f an intended IPO also RAG Beteiligungs AG, parent company of Degussa GmbH, has changed name recently and is now called Evonik Industries AG. Degussa became the Chemicals Business Area of Evonik Industries. Two years ago, Quinn Chemicals GmbH emerged from Barlo Plastics, and in May 2007 the enterprise started to build an MMA production plant in Leuna, Germany. Its capacity is planned to range at an annual 100,000 t. The plant is scheduled to start operation in the first quarter of 2009. In Asia,...

Kunststoffe international, 2007-11-21, Outer Body Skin with an Integrated Antenna
...arting with the material selection and going right through to the support structure of the body element that gives the film its shape (Fig. 5). A large number of different interfaces between plastics technology and high frequency technology emerge here, such as in respect of layer thickness tolerance in the production of film systems, or the accuracy of the antenna structure with surface functionalization by means of metallization. The scientific challenge of this subproject lies in the construc...

Kunststoffe international, 2007-12-17, From Miniaturization through to Furniture Design
...with virtually no outgassing, which means that the volatile components neither cloud lenses nor corrode contacts. In addition, they permit a high production throughput, since their broad processing window permits short cycle times and they emerge from the machine with virtually no flash (Fig. 1). With its Technyl Star AFX, Rhodia Polyamide, Paris, France, presented a new polyamide 66 that combines excellent flow behavior with a very high level of strength and heat resistance. This innovation is ...

Kunststoffe international, 2008-01-15, Inductive Heating of Injection Molds
...temperature control Fig. 4. The temperature variation at the mold surface during and after the heating phase shows a drop immediately after the end of the heating phase Fig. 5. Without inductive mold heating, visible weld seams emerge on the part surface (figures: Kunststoff-Institut) Fig. 6. Because of the inductive mold heating, the part can be produced without visible weld-seam notches

Kunststoffe international, 2008-05-10, Chalk as a Filler – Effect on Weathering Behavior
...e of synthetic, precipitated chalks. Despite the considerable body of knowledge on the production and use of chalks as an additive in the PVC-processing industry, phenomena that are new or have not been scientifically studied or published still emerge from time to time. Yellow Stains on Window Profiles About five years ago, a window manufacturer detected signals in the infrared spectrum (FTIR) at about 780 and 1,620cm-1 in installed PVC windows. These bands indicated the presence of oxalic aci...

Kunststoffe international, 2008-08-14, Planting without Shards
...deal of programming and retooling work“. After removal from the injection mold, the planters are deposited in the manufacturing cell. They then embark on a long journey, at the end of which they emerge on the conveyor belt, with a high-gloss surface, waiting to be packed ready for shipping. But, as ever, there is one exception here: the planters that are not to be painted – the planters with a braided surface look, known as ”cottage“ planters in the company’s jargon – have their thumb-sized spru...

Kunststoffe international, 2008-10-17, Styrene Copolymers (ABS, ASA, SAN, MABS)
...MW M3 coupé and convertible [2]. This material has a low coefficient of longitudinal thermal expansion and can be painted online by cathodic dip coating at dryer temperatures up to 200°C. New applications for established products often emerge from the cooperation of designers and product developers. To promote this, BASF presented its “design factory” a year ago. One of these design-oriented applications is the front frame of a flat-screen display made of modified ...

Kunststoffe international, 2009-01-26, How the World Plastics Market is Changing
... to rise in coming years. Overall, the export surplus in Western Europe cannot balance out the much higher deficit of Eastern Europe, so that, on balance, the import volume for Europe as a whole is over 4.5 million t. This confirmed the trend that emerged from the balances of the past three years, of a steadily growing European balance-of-trade deficit for plastics. It is conspicuous that ever greater volumes of PE, PET and PVC are being imported into Europe. EMEA with a Balance-of-Trade Deficit...

Kunststoffe international, 2009-06-16, Cooperation with the Minister’s Blessing
...suited to each other on account of their many similarities and the pioneering role they share in matters of climate protection.“Together, we can contribute towards ensuring that the sectors of industry that are important for both of us emerge on a stronger footing from the current crisis”, said Minister Pupatello on the occasion of the signing of the cooperation agreement. Internationalization of the Universities This idea was similarly behind the merger of the University of Karlsruhe with the K...

Kunststoffe international, 2009-06-16, Custom Product for Pallet Manufacturing
...ter, which is responsible for both the control and the user interface. The machine operates with a single programming software program. The basic program is modified to suit the specification and the process-engineering requirements that emerge when the system is commissioned. Hardware Costs are Saved The heart of the control unit contains a powerful industrial PC from B&R. It runs the entire operating and visualization software, but also data communications with higher-order systems and remote ...

Kunststoffe international, 2009-10-14, Formed by Air
...uation in the plastics industry at the end of the second quarter. There are even initial signs that a slight improvement in the economy – albeit at a rather low level – might occur in the second half of the year. Many companies are attempting to emerge from the crisis stronger by establishing innovative products and services. In this regard, achieving sustainable and efficient commerce over the long term is a major focus of activity. Extrusion Blow Molding An increasing variety of products and t...

Kunststoffe international, 2010-08-19, Rising Temperature? We are Getting Back to Normal
...in this application were molded in a conducting PA. This example reflects both the growing importance of multi-component technology as well as materials technology in the sector, from which developments new opportunities never cease to emerge. Kunststoffe: Anyone who attended the Technology Days at Arburg felt warmth for the packaging industry. Whence this new passion? Hehl: To interpret the packaging technology forum as a new passion is a little too much. Thanks to their modularity, which allow...

Kunststoffe international, 2010-09-24, Building up Pressure Efficiently
...ow outlay. The topic of lightweight construction will play a key role in automotive engineering over the years to come. In the field of electric and hybrid vehicles, a high-level demand for carbon fiber-reinforced composite parts is beginning to emerge. When components of this type are produced, dry fibers (fabric, non-wovens) are impregnated with the liquid resin and cured in a mold. Resin transfer molding (RTM) is of particular importance here, on account of the reproducible, high-quality part...

Kunststoffe international, 2010-09-24, Stable PET Foaming
...so revealed very good results. In this case, however, tuning blowing agent, chain extender and temperatures is particularly demanding, so as not to lose blowing gas via the vacuum. If undried PET was used, humidity would emerge into the foaming system, which would then put the PET melt at the risk of reacting with the chain extender. This must be prevented by all means. Conclusion The latest findings clearly show the benefits included in the combination of chain extender and chemical blowing age...

Kunststoffe international, 2011-10-17, Polypropylene (PP)
...wall packaging, household items are an important application area for this product class (Fig. 2). Nor has time stood still in flexible packaging. Since the launch of the first PP stand-up pouches, new opportunities and new requirements have emerged. The unique property profile of Borpact BC918CF (Borealis), for example, opens up applications in a variety of processing technologies and applications. This is a heterophasic copolymer, which in addition to its high rigidity and usual high level of ...

Kunststoffe international, 2012-01-30, Put an End to Flow Problems
...sult in parts of the product having only very short residence times (Fig. 3c), so that freshly added product is drawn off again immediately. An easily fluidized bulk solid then does not have the time to deaerate, and can thus emerge from the discharge opening unhindered rather like a liquid. This can lead to increased dust pollution of the environment or even to flooding of the discharge feeder. With funnel flow there is also the risk that the bulk solid becomes so consolidated in the stagnant z...

Kunststoffe international, 2012-10-15, Hot or Cold, that Is the Question
...at flow balance; there are computation programs for this purpose that give a clear picture of heat that is usually not visible. If one focuses on heat, not temperature, many interesting, very simple and logical solutions emerge. Since the stored heat in a mold depends on its mass, it is possible to speed up the molds in the area of dynamic temperature control without great effort through a smart choice of the materials [24]. If the issue is purely mass production, it may be advisable to make the...

Kunststoffe international, 2012-10-15, Injection Molding Tool Technology in 2012
...systems commenced – Husky (1953), Mold Masters (1962), Eurotool (1971), Kona (1978), PSG (1973), Ewikon (1979), and Günther (1983) to name just a few. Many other suppliers followed. From 1980 onwards, the next trend began to emerge: the specialization of individual moldmaking companies in certain market segments. Representative for this are companies like KTW (fasteners), ifw (fittings), Tanner (disposable syringes), ahoransky (shaped parts for brushes), Schöttli (medical & packaging compone...

Kunststoffe international, 2012-11-26, Plastics Technology and Electromobility
.... For protection of the battery housing, Mann+Hummel has developed a special membrane that prevents the entry of water while protecting again dust, stone impact and salt. Moreover, the plastic housing protects against contact both before and after emergency degasing. While metal materials still predominate in the electric motor because they offer the necessary functionality, plastics are increasingly used in the battery. In series batteries, the range of applications runs from housing components...

Kunststoffe international, 2012-11-26, Untapped Potential in Gas-Assisted Injection Molding
...quality even further. Synergy Effects for Production Costs and Quality Optimization Once a strategic decision has been taken in favor of CO2 as gas injection fluid, further technical ways of lowering production costs and improving part quality emerge: Spot cooling of injection molds, dynamic mold temperature control, and the cleaning of injection molds and plastic surfaces (as pretreatment for painting). In spot cooling (Fig. 6), liquid CO2 is passed through a flexible capillary tube, 1.6 mm wid...

Kunststoffe international, 2013-02-22, No Risk in Blood Sampling
...e capillary effect. Breaking glass however involves a high risk of infection for the medial staff. Governmental regulations were set up to protect them from this risk [1, 2]. The same applies to the indispensable seals in the system, where blood may emerge in a case of malfunction. It is important for the assembly group to be transparent, in order to enable the physician to see if the needle has been inserted correctly, and if blood rises in the capillary. Because there is no transparency in the...

Kunststoffe international, 2013-07-22, Color Trends for 2014
...travel around watching people in bars, in the street or in discotheques. The inspiration comes from literature, art, films or discussions. The information is absorbed, analyzed and finally put into a common context, from which various trends emerge. Recognized trend scouts (the stars of the trend agencies) then hold talks explaining the trends to decision makers from the fashion and cosmetics industries, for example. They are inspired by already existing objects, as well as by creative outsiders...

Kunststoffe international, 2013-08-19, Machine Manufacturers Tool Up for K2013
...y in your view? Peters: In injection molding technology, we continue to see the topics of lightweight construction and efficiency, and sustainability in production taking first priority. These emerge from the identifiable megatrends and dominate the entire plastics industry. With its high-quality machine technology, automated manufacturing cells and process combinations, KraussMaffei offers precisely the solutions our customers need to meet their requirements and equip themselves for future chal...

Kunststoffe international, 2014-01-23, Die Heads for Strand Pelletization: From the Melt to the Pellet
...election of products and process parameters are permissible. However, the product portfolio to be produced, particularly in a compounding shop, will change very quickly, so that additional requirements, and possibly investment needs, will emerge soon after the initial investment. The user’s existing acquired know-how about optimum setting of system components will be lost due to staff fluctuations. Due to the routine established over time, less attention will be paid to particularly sensitive se...

Kunststoffe international, 2014-01-23, Trend Report: The Devil Is in the Detail
... was mounted at a lower level, 800 mm above the floor. As a result, the entire system is readily accessible and easy to clean. Thanks to the revised heating, the die plate of the new die head is kept at a homogeneous temperature, so that the strands emerge uniformly even at high throughputs. The laboratory extruder ZSK 26 Mc18 for throughputs up to 180 kg/h rounds off the Mc18 series (Fig. 1). Because of the increased specific torque of 15 Nm/cm3, the laboratory extruder permits higher throughpu...

Kunststoffe international, 2014-10-10, Polyurethanes (PU)
...cific region. However, other regions are also displaying solid growth. The primary driving force behind growth in PU sales is the improving prosperity in emerging countries such as China, Brazil and India, which is allowing a larger middle class to emerge. The consequences are greater demand for automobiles, IT, communication and consumer goods, but also a growing construction industry, which benefits PU consumption. Thermal insulation above all has a positive effect on PU sales. It is becoming...

Kunststoffe international, 2014-12-18, Stable Economy Defies International Crises
...managers of German businesses, who are regularly surveyed by the Ifo Institute, have been reflecting on matters – the mood barometer has risen again despite the international crisis zones that have developed. One particularly positive factor to emerge from this survey was the recovery in expectations for the future course of business and the business situation. Dear readers and advertisers, we will doubtless find ourselves confronted with major challenges in the year to come. But we should not a...

Kunststoffe international, 2015-10-12, Preventing Runaway Vehicles
...ounder Nilit Plastics Europe GmbH, Utzenfeld, Germany, and automotive supplier Lisi Automotive, Delle, France, launched a development program some time ago aimed at creating various add-on parts in polyamide instead of metal. The latest invention to emerge from this collaboration is the wheel chock presented here, which is made from a tailor-made PA compound for cars produced by PSA Peugeot Citroën SA, Paris, France. The use of wheel chocks is common practice in the truck sector. During parking ...

Kunststoffe international, 2016-03-08, Polyamides also Like it Hot
With the advent of lighter-weight, quieter, higher-performance automotive drives, the temperature that components have to withstand under the hood is also increasing. In such applications, plastics have to sustain high performance over many thousands of hours. Polyamides are able to meet these challenges thanks to new heat stabilization technology, as demonstrated by the example of quick connectors for brake vacuum lines. The reduction of CO2 emissions from motor vehicles continues to be the fo...

Kunststoffe international, 2016-07-20, A Successful Leap
...owing. German plastics producers are beginning to feel the effects, even though they are still in a strong position. The central marketplace is and will remain Europe. The current year started positively, while new and bigger stimuli to growth could emerge in the fall. The industry’s highlight of the year casts a long shadow, making itself felt not only at the general meeting of the association of plastics producers, PlasticsEurope Deutschland e. V., but also in the economic figures. In Düsseld...

Kunststoffe international, 2016-07-20, How Repeatable Is Repeatability?
...uating ambient conditions or the wear of machine and mold. Material properties, too, may be subject to fluctuations from batch to batch, representing disturbances for the process.But, during the lifetime of a process, who knows what disturbances may emerge, what their extent will be, and, most important, how much they will affect the quality of the part? In practice, these future scenarios are usually neglected; processors restrict themselves to making an inventory of the current repeatability. ...

Kunststoffe international, 2016-09-23, Better Pelletization under Water
...polymers or compounds into a number of individual strands and then cut them into pellets. The heart of such systems are die plates with numerous holes through which the product melt is pressed. Blades which cut the strands into pellet length as they emerge from the holes rotate over the surface of these plates. This process usually involves metal-to-metal contact between the plate and blade and hence abrasion and cohesion phenomena. Moreover, the water which cools the melt, makes it cuttable and...

Kunststoffe international, 2016-10-17, Polyethylene (PE)
...either of them was in the group of HDPE leaders ten years ago. However, the spread between CNPC, Sinopec, and NIPC is not as large as the ranking difference leads one to suspect: The field of competitors is surprisingly dense. Similar tendencies emerge from an analysis of LDPE and LDDPE suppliers.Supply Flows to AsiaThe increasing importance of Chinese producers is readily explained by sharply rising demand in Far East consumer markets – which cannot be met by domestic capacities alone. Causes f...

Kunststoffe international, 2016-10-17, Reactive Systems and Fiber-Reinforced Composites
...quid impregnation accounting for about 20 %. At just about one-fourth, the proportion of thermoplastic CFRP materials is much higher than that of glass-fiber-reinforced polymers, where thermoset matrices predominate [1].Aliancys, Olin and Covestro Emerge from Restructuring MeasuresSome big names in the reaction resin business are now no longer. The "Composite Resins" division of chemical company DSM, Sittard, The Netherlands, has been spun off and is now called "Aliancys". This is a joint ventur...

Kunststoffe international, 2017-03-27, Cutting the Gordian Knot
...at time in the employ of the resourceful Austrian solution provider, and Lucht, actively involved as an external tooling expert, set about devising and evaluating alternative dry processes. As the potential of the application started to emerge, they made a decision: "We need to transfer what we have successfully implemented in this project to other particle foams."Andreas Fill, managing director of the specialist machine maker, who introduces himself, almost apologetically, as one of the few non...

Kunststoffe international, 2017-03-27, Mirror-Finish Painting in the Mold
...design, Weidplas, with its Technical Competence Center (TCC) offers a platform for preliminary tests and development projects.PSA Recognized the Advantages of Flow Coating at an Early StageThe two visible parts of the A-column trims emerge from the turning platen mold with a mirror-gloss piano finish – with a coat thickness that is always uniform, even at radiuses and edges, and with an almost 100 % quota of good parts. Despite the short cycle time of less than a minute, the two-component coatin...

Kunststoffe international, 2017-05-22, From 0 to 25,000 in One Second
...stomers in the science field. The hydraulics was also required to provide freely preselectable force and velocity for all operating functions, and should also be usable with tools in which each half weighs up to 12,500 kg. These requirements emerge from the overall situation of press, process conditions and installation location. In addition, the press should be accessible and operable from several sides for flexible deployment. Frame presses therefore do not come into question because of their ...

Kunststoffe international, 2017-07-19, Plasma Detectives
...ric. Nor will the fabric be destroyed by a flame moving across the indicator at the same speed. Thus, the indicator tag is guaranteed to respond only to successful plasma treatment. System limitations for atmospheric pressure plasma indicator tags emerge only when very high throughputs (of 600 mm/s and more) combined with large treatment distances (more than about 1.6 cm) are required (Fig. 4); measurements show that such throughput rates can easily cope with distances of under 0.9 cm. These val...

Kunststoffe international, 2020-05-05, More is Less
... in the injection-compression molding simulation is more homogeneous (Fig. 3). When the local flow-induced residual stresses in the XX direction are displayed as false-color diagrams, clear differences also emerge at this point between the simulated lenses made by both types of simulation, as was the case for the pressure results (Fig. 4). In contrast to the injection-molded lens, the injection-compression molded lens is characterized by a lower residual stress gradient, resulting in better opti...