P84® Fibers

About
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
SupplierEvonik
GenericPI
Material StatusCommercial: Active
FeaturesAromatic,Flame Characteristics,Heat Stabilized
AvailabilitysNorth America,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density1.41g/cm³
Shrinkage rate
240℃,10 min< 3.0%

MECHANICALNominal valueUnitTest method
Tensile strain
fracture30%

THERMALNominal valueUnitTest method
Glass transition temperature315DSC

FLAME CHARACTERISTICSNominal valueUnitTest method
Extreme oxygen index38%

Supplementary informationNominal valueUnitTest method
Tenacity4.29g/denier

Notes
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