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This is the free Material Data Center Datasheet of PLEXIGLAS® Heatresist hw55 - PMMA - Röhm GmbH

Material Data Center offers the following functions for PLEXIGLAS® Heatresist hw55:
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Testo del prodotto

Productprofil:

PLEXIGLAS® Heatresist hw55 clear is a copolymer based on methyl methacrylate (MMA) with comonomer constituents.

 

Besides showing the familiar properties of standard PLEXIGLAS® molding compound, such as

 

  • high light transmission,
  • good flowability,
  • high mechanical strength, surface hardness and abrasion resistance, as well as
  • excellent weatherability,

 

PLEXIGLAS® Heatresist hw55 clear offers the additional benefits of

 

  • increased heat deflection temperature under load and
  • improved resistance to stress cacking
  • optimised inherent color,
  • AMECA listing.

Application:

PLEXIGLAS® Heatresist hw55 clear is particularly suitable for injection molding of technical items.

Example:

lighted keys, luminaire covers, fiber optics.

Processing:

PLEXIGLAS® Heatresist hw55 clear can be processed on injection molding machines with 3-zone general purpose screws for thermoplastics.

Physical Form / Packaging:

PLEXIGLAS® Heatresist hw55 is supplied as pellets of uniform size, packaged in two-ply, 25kg polyethylene bags; other packaging on request.

Caratteristiche FisicheValoreUnitáNorma del test
ISO Data
Indice di fusione di volume, MVR 1.2 cm³/10min ISO 1133
Temperatura 230 °C -
Carico 3.8 kg -
Densità del fuso 1080 kg/m³ -
Conduttività termica del fuso 0.19 W/(m K) -
Capacità termica specifica del fuso 2440 J/(kg K) -
Diffusività termica 7.22E-8 m²/s -
Temperatura di estrazione 100 °C -
Proprietà MeccanicheValoreUnitáNorma del test
ISO Data
Modulo a trazione 3600 MPa ISO 527
Carico unitario a rottura 80 MPa ISO 527
Deformazione a rottura 3.5 % ISO 527
Modulo di scorrimento a trazione, 1h 3300 MPa ISO 899-1
Modulo di scorrimento a trazione, 1000h 2700 MPa ISO 899-1
Resistenza all'urto Charpy, +23°C 20 kJ/m² ISO 179/1eU
Proprietà TermicheValoreUnitáNorma del test
ISO Data
Temperatura di transizione vetrosa, 10°C/min 122 °C ISO 11357-1/-2
Temp.di inflessione sotto carico, 1.80 MPa 106 °C ISO 75-1/-2
Temp.di inflessione sotto carico, 0.45 MPa 109 °C ISO 75-1/-2
Temp.di rammollimento Vicat, B 119 °C ISO 306
Coeff.di dilatazione termica lin., parallelo 70 E-6/K ISO 11359-1/-2
Reaz. al fuoco spess.nom. 1.5mm HB class IEC 60695-11-10
Spessore provato 1.6 mm -
Yellow Card disponibile - -
Indice di ossigeno 18 % ISO 4589-1/-2
Proprietà ElettricheValoreUnitáNorma del test
ISO Data
Costante dielettrica relativa, 100Hz 3.5 - IEC 62631-2-1
Costante dielettrica relativa, 1MHz 2.9 - IEC 62631-2-1
Fattore di dissipazione, 100Hz 400 E-4 IEC 62631-2-1
Fattore di dissipazione, 1MHz 200 E-4 IEC 62631-2-1
Resistività volumica >1E13 Ohm*m IEC 62631-3-1
Resistività superficiale 1E13 Ohm IEC 62631-3-2
Res. Alle correnti striscianti superficiali 600 - IEC 60112
Proprietà OtticheValoreUnitáNorma del test
ISO Data
Trasmittanza luminosa 90 % ISO 13468-1, -2
Altre ProprietàValoreUnitáNorma del test
Assorbimento d'acqua 2.2 % Sim. alla ISO 62
Assorbimento d'umidità 0.6 % Sim. alla ISO 62
Massa volumica 1190 kg/m³ ISO 1183
Proprietà Specifiche MaterialeValoreUnitáNorma del test
ISO Data
Numero di viscosità 60 cm³/g ISO 307, 1157, 1628
Preparazione ProvetteValoreUnitáNorma del test
ISO Data
Stamp. ad Iniezione, temp. di fusione 250 °C ISO 294
Stamp. ad Iniezione, temperatura dello stampo 82 °C ISO 294
Stamp. ad Iniezione, velocità media d'iniezione 195 mm/s ISO 294
Funzioni
Viscosità-Velocità di taglio , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Sforzo di taglio-Velocità di taglio , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Modulo dinamico a taglio-temperatura , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Sforzi-deformazione , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Modulo secante-deformazione , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Volume specifico-temperatura (pvT) , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Entalpia specifica/temperatura massa (DSC) , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Modulo a taglio-temperatura , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Caratteristiche
Processabilità e Forma di Forni
Stampaggio ad Iniezione
Forma fisica disponibile
Pellet
Caratteristiche speciali
Stabilizzato o stabile alla luce, Estab. agli U.V. o per applicaz.in esterni, Stabilizzato o stabile al calore, Trasparente
Caratteristiche
Copolimero
Resistenza Chimica
Resistenza alla rottura da stress ambientale
Disponibilità geografica
Nord America, Europa, Asia Oceano Pacifico, South and Central America, Near East/Africa
Altre informazioni
Stampaggio ad Iniezione
PREPROCESSING
Predrying temperature: max. 109 °C
Predrying time in a desiccant-type drier: 2 - 3 h
PROCESSING
Melt temperature: 220 - 250°C
Mold temperature:60 - 90°C
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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