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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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Texto del producto

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.

Caracteristicas de procesamiento y fisicasValorUnidadesMétodo de ensayo
ISO Data
Indice de fluidez volumétrico, MVR 1.2 cm³/10min ISO 1133
Temperatura 230 °C -
Carga 3.8 kg -
Densidad de fusión 1080 kg/m³ -
Conductibilidad termica de fusión 0.19 W/(m K) -
Calor especifico de la masa 2440 J/(kg K) -
Difusibidad termica 7.22E-8 m²/s -
Temperatura de expulsión 100 °C -
Propiedades mecánicasValorUnidadesMétodo de ensayo
ISO Data
Módulo de tracción 3600 MPa ISO 527
Resistencia a la tracción 80 MPa ISO 527
Alargamiento a rotura 3.5 % ISO 527
Módulo de plastodeformación, 1h 3300 MPa ISO 899-1
Módulo de plastodeformación, 1000h 2700 MPa ISO 899-1
Resistencia al impacto Charpy, +23°C 20 kJ/m² ISO 179/1eU
Propiedades térmicasValorUnidadesMétodo de ensayo
ISO Data
Temp. de transición vítrea, 10°C/min 122 °C ISO 11357-1/-2
Estabilidad al calor, 1.80 MPa 106 °C ISO 75-1/-2
Estabilidad al calor, 0.45 MPa 109 °C ISO 75-1/-2
Temp. reblandecimiento Vicat, B 119 °C ISO 306
Coef.de expansión térmica lineal, paralelo 70 E-6/K ISO 11359-1/-2
Combustibilidad a 1.5mm esp. nom. HB class IEC 60695-11-10
Espesores de probeta 1.6 mm -
Yellow Card disponible - -
Combustibilidad según índice de oxigeno 18 % ISO 4589-1/-2
Propiedades eléctricasValorUnidadesMétodo de ensayo
ISO Data
Constante dieléctrica, 100Hz 3.5 - IEC 62631-2-1
Constante dieléctrica, 1MHz 2.9 - IEC 62631-2-1
Factor de pérdidas dieléctricas, 100Hz 400 E-4 IEC 62631-2-1
Factor de pérdidas dieléctricas, 1MHz 200 E-4 IEC 62631-2-1
Resistividad volumétrica específica >1E13 Ohm*m IEC 62631-3-1
Resistividad superficial específica 1E13 Ohm IEC 62631-3-2
Indice comparativo de linea de fuga 600 - IEC 60112
Propiedades opticasValorUnidadesMétodo de ensayo
ISO Data
Transmitancia luminosa 90 % ISO 13468-1, -2
Otras propiedadesValorUnidadesMétodo de ensayo
Absorción de agua 2.2 % Sim. to ISO 62
Absorción de humedad 0.6 % Sim. to ISO 62
Densidad 1190 kg/m³ ISO 1183
Propiedades específicas del materialValorUnidadesMétodo de ensayo
ISO Data
Indice de viscosidad 60 cm³/g ISO 307, 1157, 1628
Condiciones de transformaciónValorUnidadesMétodo de ensayo
ISO Data
Moldeo por inyección, temperatura de la masa 250 °C ISO 294
Moldeo por inyección, temperatura del molde 82 °C ISO 294
Moldeo por inyección, velocidad de inyección 195 mm/s ISO 294
Funciones
Viscosidad-velocidad de cizallamiento , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Tensión de cizalla-velocidad de cizalla , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Módulo de cizallamiento dinámico-temperatura , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Esfuerzo-alargamiento , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Módulo secante-alargamiento , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Volumen especifico-temperatura (pvT) , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Entalpía específica/temperatura de la masa (DSC) , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Módulo a tensión-temperatura , PLEXIGLAS® Heatresist hw55, PMMA, Röhm
Características
Procesamiento y forma de entrega
Moldeo por inyección
Forma de suministro
Sémola
Características especiales
Estable a la luz, Estable contra rayos U.V./interperie, Estable contra el calor, Transparente
Características
Copolímero
Resistencia quimica
Resistencia al esfuerzo producido por condiciones ambientales
Disponibilidad regional
Norteamérica, Europa, Asia Pacifico, América del Sur y Centroaméric, Próximo Oriente/Africa
Demás información
Moldeo por inyección
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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