Fabrication of wear-resistant PA6 composites with superior thermal conductivity and mechanical properties via constructing highly oriented hybrid network of SiC-packed BN platelets  

作　　者：Jing Chen Jiaming Zhu Yang Pan Hong Wu Shaoyun Guo Jianhui Qiu 

机构地区：[1]The State Key Laboratory of Polymer Materials Engineering,Sichuan Provincial Engineering Laboratory of Plastic,Rubber Complex Processing Technology,Polymer Research Institute of Sichuan University,Chengdu 610065,China [2]Jiangsu Industrial Technology Research Institute of Advanced Polymer Materials,Nanjing 211899,China [3]Department of Mechanical Engineering,Faculty of Systems Science and Technology,Akita Prefectural University,Akita 015-0055,Japan

出　　处：《Journal of Materials Science & Technology》2023年第15期200-210,共11页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.51790501);the Sichuan Science and Technology Program(No.2022YFH0090);the Fundamental Research Funds for the Central Universities.

摘　　要：Herein,a strong extensional and shearing field was introduced to construct highly oriented hybrid networks of silicon carbide(SiC)-packed boron nitride(BN)platelets to fabricate high-performance wearresistant PA6 composites.Results show that in-plane and through-plane thermal conductivity(TC)of the prepared PA6 composites with a total filler loading of 20 wt.%reached 1.31 and 0.35 W/(m K),352%and 25%higher than those of pure PA6,respectively.It is attributed to the highly oriented hybrid network that facilitates the formation of efficient thermal conductivity pathways.Temperature monitoring results during friction confirm that high TC favors the friction heat dissipation performance.Meanwhile,the yield strength of PA6 composites increased by 39.1%and they still have excellent ductility with an elongation at break of 207.1%.Finally,the wear rate of PA6 composites decreased sharply by 92.5%.This method can be used to manufacture advanced linear bearing and guideway parts,etc。

关 键 词：Polymer-matrix composites(PMCs) Hybrid Wear Thermal properties 

分 类 号：TQ163[化学工程—高温制品工业]