Material Comparison
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PUR-MDI 728 IBS (40 pcf) Covestro - Polycarbonates
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Plastic Datasheets
| Impact resistance | Test Condition | Test Method | Covestro - Polycarbonates/728 IBS (40 pcf) |
|---|---|---|---|
| Suspended wall beam without notch impact strength | 6.35mm | ASTM D256 | 110 J/m |
| Impact strength of simply supported beam without notch | 内部方法 | 13 kJ/m² | |
| Impact strength of cantilever beam gap | 6.35mm | ASTM D256 | 16 J/m |
| Mechanical properties | Test Condition | Test Method | Covestro - Polycarbonates/728 IBS (40 pcf) |
|---|---|---|---|
| tensile strength | 断裂,6.35mm | ASTM D638 | 16.5 MPa |
| bending strength | 6.35mm | ASTM D790 | 31.0 MPa |
| elongation | 断裂,6.35mm | ASTM D638 | 9.0 % |
| Flexural modulus | 6.35mm | ASTM D790 | 931 MPa |
| flammability | Test Condition | Test Method | Covestro - Polycarbonates/728 IBS (40 pcf) |
|---|---|---|---|
| UL flame retardant rating | 6.4mm | UL 94 | V-0 |
| physical property | Test Condition | Test Method | Covestro - Polycarbonates/728 IBS (40 pcf) |
|---|---|---|---|
| Shrinkage rate | MD：6.35mm | ASTM D955 | 0.70to0.90 % |
| Thermal performance | Test Condition | Test Method | Covestro - Polycarbonates/728 IBS (40 pcf) |
|---|---|---|---|
| Linear coefficient of thermal expansion | MD：70°C,6.35mm | ASTM D696 | 1E-04 cm/cm/°C |
| Heat distortion temperature | 0.45MPa,未退火,6.35mm，HDT | ASTM D648 | 76.0 °C |
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