An investigation of the microstructure and tribological behavior of polyether ether ketone composites fabricated by extrusion‐based additive manufacturing.

Autor: Lv, Xiancheng, Yang, Shuyan, Pei, Xianqiang, Zhang, Yaoming, Wang, Qihua, Wang, Tingmei
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Zdroj: Polymer International; Jul2024, Vol. 73 Issue 7, p516-529, 14p
Abstrakt: Carbon fiber reinforced polyether ether ketone (CF/PEEK) composites are widely used as tribo‐materials in the aerospace and automotive industry. To amplify the industrial utilization of extrusion‐based additive manufacturing fused deposition modeling in fabricating CF/PEEK tribo‐composites, the composites' microstructure–property relationship was studied with respect to carbon fiber content varying between 5 wt% and 30 wt%. This revealed that the incorporation of carbon fibers helped enhance the mechanical strength of PEEK greatly with an optimal content of 5 wt%, at which the composite material exhibited the highest crystallinity as well as the best mechanical performance. Tribological tests indicated that CF/PEEK composites were more suitable for high speed and heavy load conditions especially for 20 wt% CF/PEEK, which was associated with the establishment of high quality transfer films covered on counter steel surfaces. The present work provides a simple and low cost way of fabricating high performance PEEK composites used as tribo‐materials. © 2024 Society of Industrial Chemistry. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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