About |
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PLEXIGLAS® 7H is an amorphous thermoplastic molding compound (PMMA). Typical properties of PLEXIGLAS® molding compounds are: good flow high mechanical strength, surface hardness and mar resistance high light transmission excellent weather resistance free colorability due to crystal clarity. Special properties of PLEXIGLAS® 7H are: very good mechanical properties high heat deflection temperature high melt strength AMECA listing. Application: Used for extruding optical and technical profiles and sheets. Examples: sheets, tubes, multi-skin sheets, coextrusion of window profiles and similar applications&& |
Product Description | |
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Supplier | ROHM |
Generic | PMMA |
Material Status | Commercial: Active |
Features | Good Rigidity,Weather resistance is good,Good liquidity,Good Hardness,Good coloring,HB |
Availabilitys | Europe |
Process Methods | Extrusion |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Density | 1.19 | g/cm³ | ISO 1183 |
Melt Volume Rate | |||
230℃,3.8 kg | 1.40 | cm³/10min | ISO 1133 |
MECHANICAL | Nominal value | Unit | Test method |
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Tensile modulus | 3200 | MPa | ISO 527-1-2 |
tensile strength | |||
fracture | 76.0 | MPa | ISO 527-2/5 |
Tensile strain | |||
fracture | 5.5 | % | ISO 527-2/5 |
IMPACT | Nominal value | Unit | Test method |
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Charpy Unnotch Impact strength | |||
23℃ | 20 | kJ/m² | ISO 179/1eU |
THERMAL | Nominal value | Unit | Test method |
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Hot deformation temperature | |||
0.45 MPa, unannealed | 100 | ℃ | ISO 75-2/B |
1.8 MPa, unannealed | 95.0 | ℃ | ISO 75-2/A |
Glass transition temperature | 112 | ℃ | ISO 11357-2 |
Vicat Softening Temp | |||
B50 | 103 | ℃ | ISO 306 |
Linear coefficient of thermal expansion | |||
MD:0~50℃ | 8.0E-5 | 1/℃ | ISO 11359-2 |
FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
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Flame retardant level | B2 | DIN 4102 | |
1.60 mm | HB | UL 94 |
optical performance | Nominal value | Unit | Test method |
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Refractive index | 1.490 | ISO 489 | |
Transmittance | 92.0 | % | ISO 13468-2 |
Haze | < 0.50 | % | ASTM D1003 |
Process Conditions | |||
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Extrusion | Nominal value | Unit | Test method |
Drying temperature | < 93 | °C | |
Drying time | 2.0 to 3.0 | hr | |
Melt temperature | 220 to 260 | °C | |
Nozzle temperature | 220 to 260 | °C |
Notes |
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1. Typical properties: these are not to be construed as specifications. |
2. D65 |
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