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This is the free Material Data Center Datasheet of PLEXIGLAS® 7M - PMMA - Röhm GmbH

Material Data Center offers the following functions for PLEXIGLAS® 7M:
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Informations produit

Productprofil:

PLEXIGLAS® 7M molding compound is based on polymethyl methacrylate (PMMA).

 

Besides showing the familiar properties of PLEXIGLAS® 7H molding compounds, such as

 

  • excellent light transmission and brilliance
  • excellent weatherability
  • high mechanical strength, surface hardness and abrasion resistance.

 

PLEXIGLAS® 7M is special in that it

 

  • better flowing behavior,
  • AMECA listing.

Application:

PLEXIGLAS® 7M is particularly suitable for extruding profiles and panels for use in lighting engineering.

Example:

lighting fixtures, displays and similar extruded items for technical purposes.

Processing:

PLEXIGLAS® 7M can be processed on extruders with 3-zone general purpose screws for thermoplastics.

Physical Form / Packaging:

PLEXIGLAS® molding compound is supplied as pellets of uniform size 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 2.9 cm³/10min ISO 1133
Température 230 °C -
Charge 3.8 kg -
Densité du fondu 1060 kg/m³ -
Conductivité thermique du fondu 0.181 W/(m K) -
Chaleur spécifique du fondu 2440 J/(kg K) -
Diffusivité thermique 6.99E-8 m²/s -
Température d'éjection 85 °C -
Propriétés mécaniquesValeurUnitéNorme du test
ISO Data
Module en traction 3200 MPa ISO 527
Contrainte à la rupture 69 MPa ISO 527
Déformation à la rupture 4 % ISO 527
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 108 °C ISO 11357-1/-2
Température de ramolliss. Vicat, B 104 °C ISO 306
Coeffic. de dilatation therm. linéique, parallèle 80 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 17.2 % ISO 4589-1/-2
Propriétés électriquesValeurUnitéNorme du test
ISO Data
Permittivité relative, 100Hz 3.7 - IEC 62631-2-1
Permittivité relative, 1MHz 2.8 - IEC 62631-2-1
Facteur de pertes, 100Hz 500 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
Propriétés optiquesValeurUnitéNorme du test
ISO Data
Transmittance 92 % ISO 13468-1, -2
Propriétés diversesValeurUnitéNorme du test
Absorption d'eau 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 62 cm³/g ISO 307, 1157, 1628
Préparation et conditionnement des éprouvettesValeurUnitéNorme du test
ISO Data
Conditions de moulage selon ISO 8257 - ISO ....-2
Injection, température de la matière fondue 254 °C ISO 294
Injection, température du moule 64 °C ISO 294
Injection, vitesse d'injection 195 mm/s ISO 294
Fonctions
Viscosité / Vitesse de cisaillement , PLEXIGLAS® 7M, PMMA, Röhm
Contrainte de cisaillement / Vit. de cisaillement , PLEXIGLAS® 7M, PMMA, Röhm
Module de cisaillement dynamique / Température , PLEXIGLAS® 7M, PMMA, Röhm
Contrainte / Déformation , PLEXIGLAS® 7M, PMMA, Röhm
Module sécant / Déformation , PLEXIGLAS® 7M, PMMA, Röhm
Module de traction / Température , PLEXIGLAS® 7M, PMMA, Röhm
Caractéristiques
Transformation
Moulage par injection, Extrusion de profilés, Extrusion de plaques, Extrusion (autres)
Conditionnement
Granulés
Propriétés spéciales
Stabilisé à la lumière, Stabilisé aux intempéries, Transparent
Disponibilité régionale
Amérique du nord, Europe, Asia Pacific, South and Central America, Proche-Orient/Afrique
Autres informations
Extrusion de profilés
PREPROCESSING
Predrying temperature: max. 94 °C
Predrying time in a desiccant-type drier: 2 - 3 h
PROCESSING
Melt temperature: 220 - 260 °C
Die temperature: 220 - 260 °C
Extrusion de feuilles
PREPROCESSING
Predrying temperature: max. 94 °C
Predrying time in a desiccant-type drier: 2 - 3 h
PROCESSING
Melt temperature: 220 - 260 °C
Die temperature: 220 - 260 °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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