Evonik : New polyimide fiber
Evonik

New polyimide fiber

Evonik

The specialty chemicals company Evonik Industries AG, Essen/Germany, has developed a new generation of polyimide fibers.

The new fiber P84 HT, is distinguished by improved mechanical stability and flexibility at continuously high operating temperatures.
With their multilobal cross-section and the very large surface area, these high-tech fibers offer very high filtration efficiency. Due to their chemical and physical properties, P84 HT high-performance fibers can be used in a wide variety of applications. These range from filter media for high-temperature filtration, through protective clothing and sealing materials for space vehicles, to various high-temperature applications such as thermal insulation. Another competitive differentiating factor of P84 HT consists in the improved textile properties at high temperatures. The new polyimide fiber from Evonik retains its flexibility better than other materials, even at temperatures around 280°C. As a result, it remains more stable in applications with relatively high average temperatures and frequent temperature spikes. A standardized bending test shows that the new P84 HT fiber has almost twice the flexibility of standard materials.


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