About |
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P84® polyimide derived from aromatic dianhydrides and aromatic diisocyanates exhibits outstanding thermal stability. The polymer is non melting, has a glass transition temperature of 315°C. The fibres start to carbonize at temperatures beyond 370 °C. Due to the aromatic structure the polymer and fibres are inherent non flammable. A limiting oxygen index of 38 percent can be measured. P84 can be used to temperatures up to 260 °C depending on the environment. Fibre Properties Features of the P84 polyimide fibres are the irregularly lobed cross-section being responsible for the high bulk of the fibres. The typical mechanical fibre data describe that P84 is rather a textile fibre with good knot and loop strength properties. Because of the low modulus and the high elongation P84 polyimide fibres are not destined for typical “reinforcing” applications as p-aramid or carbon fibres.&& |
Product Description | |
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Supplier | Evonik |
Generic | PI |
Material Status | Commercial: Active |
Features | Aromatic,Flame Characteristics,Heat Stabilized |
Availabilitys | North America,Europe |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Density | 1.41 | g/cm³ | |
Shrinkage rate | |||
240℃,10 min | < 3.0 | % |
MECHANICAL | Nominal value | Unit | Test method |
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Tensile strain | |||
fracture | 30 | % |
THERMAL | Nominal value | Unit | Test method |
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Glass transition temperature | 315 | ℃ | DSC |
FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
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Extreme oxygen index | 38 | % |
Supplementary information | Nominal value | Unit | Test method |
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Tenacity | 4.29 | g/denier |
Notes |
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