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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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Informations produit

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.

Caractéristiques des transformations/physiquesValeurUnitéNorme du test
ISO Data
Indice de fluidité à chaud en volume, MVR 1.2 cm³/10min ISO 1133
Température 230 °C -
Charge 3.8 kg -
Densité du fondu 1080 kg/m³ -
Conductivité thermique du fondu 0.19 W/(m K) -
Chaleur spécifique du fondu 2440 J/(kg K) -
Diffusivité thermique 7.22E-8 m²/s -
Température d'éjection 100 °C -
Propriétés mécaniquesValeurUnitéNorme du test
ISO Data
Module en traction 3600 MPa ISO 527
Contrainte à la rupture 80 MPa ISO 527
Déformation à la rupture 3.5 % ISO 527
Module de fluage en traction, 1h 3300 MPa ISO 899-1
Module de fluage en traction, 1000h 2700 MPa ISO 899-1
Résistance au choc Charpy, +23°C 20 kJ/m² ISO 179/1eU
Propriétés thermiquesValeurUnitéNorme du test
ISO Data
Température de transition vitreuse, 10°C/min 122 °C ISO 11357-1/-2
Température de fléchissement s/chrg, 1.80 MPa 106 °C ISO 75-1/-2
Température de fléchissement s/chrg, 0.45 MPa 109 °C ISO 75-1/-2
Température de ramolliss. Vicat, B 119 °C ISO 306
Coeffic. de dilatation therm. linéique, parallèle 70 E-6/K ISO 11359-1/-2
Inflammabilité ep. nom. 1.5 mm HB class IEC 60695-11-10
Epaisseur de l'éprouvette 1.6 mm -
Yellow Card disponible oui - -
Aptitude à l'allumage 18 % ISO 4589-1/-2
Propriétés électriquesValeurUnitéNorme du test
ISO Data
Permittivité relative, 100Hz 3.5 - IEC 62631-2-1
Permittivité relative, 1MHz 2.9 - IEC 62631-2-1
Facteur de pertes, 100Hz 400 E-4 IEC 62631-2-1
Facteur de pertes, 1MHz 200 E-4 IEC 62631-2-1
Résistivité transversale >1E13 Ohm*m IEC 62631-3-1
Résistivité superficielle 1E13 Ohm IEC 62631-3-2
Indice de résistance au cheminement 600 - IEC 60112
Propriétés optiquesValeurUnitéNorme du test
ISO Data
Transmittance 90 % ISO 13468-1, -2
Propriétés diversesValeurUnitéNorme du test
Absorption d'eau 2.2 % Sim. to ISO 62
Absorption d'humidité 0.6 % Sim. to ISO 62
Masse volumique 1190 kg/m³ ISO 1183
Propriétés spécifiques à la matièreValeurUnitéNorme du test
ISO Data
Indice de viscosité 60 cm³/g ISO 307, 1157, 1628
Préparation et conditionnement des éprouvettesValeurUnitéNorme du test
ISO Data
Injection, température de la matière fondue 250 °C ISO 294
Injection, température du moule 82 °C ISO 294
Injection, vitesse d'injection 195 mm/s ISO 294
Fonctions
Viscosité / Vitesse de cisaillement , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Contrainte de cisaillement / Vit. de cisaillement , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Module de cisaillement dynamique / Température , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Contrainte / Déformation , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Module sécant / Déformation , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Volume spécifique (pvT) , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Enthalpie spéc./masse / Température (DSC) , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Module de traction / Température , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Caractéristiques
Transformation
Moulage par injection
Conditionnement
Granulés
Propriétés spéciales
Stabilisé à la lumière, Stabilisé aux intempéries, Stabilisé à la chaleur, Transparent
Caractéristiques
Copolymère
Résistance Chimique
Fissuration à l’environnement
Disponibilité régionale
Amérique du nord, Europe, Asia Pacific, South and Central America, Proche-Orient/Afrique
Autres informations
Moulages par injection
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
Conditions générales
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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