Experimental and Analytical Investigations on Tribological Properties of PTFE/AP Composites

Polymers

Yu Dong¹  Bingli Fan²  Hai Wang²  Annan Sun²  Xiaowen Qi² 

[1] School of Civil and Mechanical Engineering, Curtin University, Perth, WA 6845, Australia;School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China;

关键词: polytetrafluoroethylene (PTFE);    poly(para-phenyleneterephthalamide) PPTA pulp;    tribological properties;    transfer films;   

DOI  :  10.3390/polym13244295

来源: DOAJ

【 摘 要 】

The tribological properties of polytetrafluoroethylene (PTFE)/AP (poly(para-phenyleneterephthalamide) (PPTA) pulp) composites under different test conditions (load: 2N, 10N; frequency: 1 Hz, 4 Hz; amplitude: 2 mm, 8 mm) were holistically evaluated. PTFE/AP composites with different AP mass ratios of 3%, 6%, and 12% as a skeleton support material were prepared. The coefficient of friction (COF) and wear rate were determined on a ball-on-disk tribometer. Furthermore, the morphology, element composition, and chemical structure of the transfer membrane were analyzed accordingly. The relationships between load, frequency, amplitude, and tribological properties were further investigated. According to the wear mechanism, AP enables effective improvement in the stiffness and wear resistance, which is also conducive to the formation of transfer films.

【 授权许可】

Unknown