The new polyimide fiber continues Evonik’s three decades of tradition of developing and producing high-performance polymer-based fibers for the hot gas filtration market at the Group’s Lenzing/Schörfling sites in Austria.

High-tech fibers with maximum filtration efficiency

With their unique multilobal cross-section and the largest surface area available in the market, these high-tech fibers from Evonik offer the best filtration efficiency. Due to their excellent 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.