预分散芳纶短纤维莱茵能AFP-40／EPDM和莱茵能P91—40／EPDM的应用研究

研究了预分散芳纶短纤维莱茵能AFP-40／EPDM和莱茵能P91—40／EPDM在EPDM胶料中的性能。结果表明，在动静态负载下，芳纶短纤维能提供很高的强度，尤其在纤维的取向方向，即使很小的应变，也会产生很高的定伸应力；芳纶短纤维具有优异的耐高温应力和耐化学介质腐蚀性能；莱茵能AFP-40／EPDM和莱茵能P91-40／EPDM预分散芳纶纤维会在胶料中得到较为理想的分散性，通过强度，动态阻力和纤维形态的分布方面测试对比，莱茵能AFP-40／EPDM在胶料中能提供最好的分散性，莱茵能AFP和莱茵能P91系列的产品可用于高性能材料制品。

Dispersion and Properties of Predispersed Aramid Short Fiber for EPDM Compound

The properties of predispersed rubber chemicals Rhenogran AFP-- 40/EPDM and Rhenogran P91-- 40/EPDM in EPDM compound were investigated. The results showed that aramid short fiber pulp is characterized by unusually high strength, under static and dynamic load. In particular at low elongation, extremely high modulus can be achieved in the direction of fiber orientation; Aramid short fibre pulp is extremely resistant to thermal load and chemical influences In terms of the level of strength, dynamic resistance and the morphological evaluation of the quality of distribution, Rhenogran AFP--40/ EPDM proves to be the best dispersing product quality. For this reason, the types from the Rhenogran AFP-- 40 and Rhenogran P91 series are used for modern high--performance materials for belts, pressurized hoses, special tires and molded goods for heavy duty applications.