中国塑料2026，Vol.40Issue(8)：17-22,6.DOI:10.19491/j.issn.1001-9278.2026.08.004
多壁碳纳米管与三氧化钨共混改性填充聚酰亚胺的摩擦学性能研究
Tribological properties of polyimide modified with multi-walled carbon nanotubes and tungsten trioxide
陈嘉泰 1刘洪 1吴建成 1张宝鹏 1崔军洋 1何长存 1张莉珍1
作者信息
- 1. 兰州交通大学机电工程学院,兰州 730070
- 折叠
摘要
Abstract
To enhance the wear resistance of polyimide(PI),PI composites reinforced with multi-walled carbon nano-tubes(MWCNTs)and tungsten trioxide(WO3)were fabricated via physical blending and hydrothermal synthesis in this study.The composite coatings were prepared through coating and sintering processes,and their tribological performance was systematically tested using a wear tester.The influences of applied load and filler content on the tribological proper-ties of the composites were comprehensively analyzed.The experimental results reveal that the hybrid addition of WO3 and MWCNTs endows PI composites with superior wear resistance compared with pure PI and single MWCNT-filled PI composites.The optimal tribological performance is obtained for the PI composite with 1 wt%WO3@MWCNT hybrid fillers.Under applied loads of 100 N,200 N,and 300 N,the optimal composite exhibits friction coefficient reductions of 33.3%,22.8%,and 4.7%,as well as wear rate reductions of 70.0%,58.6%,and 26.0%,respectively,com-pared with pure PI.Relative to the 0.6 wt%MWCNT/PI composite,its friction coefficient decreases by 11.5%,7.0%,and 0.9%,and its wear rate drops by 57.9%,43.6%,and 23.0%at the corresponding loads.Further-more,compared with physically blended fillers,WO3 and MWCNTs modified via hydrothermal treatment can form a more uniform and dense transfer film on the friction surface.This optimized microstructure contributes to a smooth and flat worn surface of the composite,and the wear behavior is dominated by a mixed wear mechanism consisting of mild abrasive wear and fatigue wear.关键词
水热反应/三氧化钨/聚酰亚胺/摩擦学性能/磨损机理Key words
hydrothermal reaction/tungsten trioxide/polyimide/tribological property/wear mechanism分类
化学化工引用本文复制引用
陈嘉泰,刘洪,吴建成,张宝鹏,崔军洋,何长存,张莉珍..多壁碳纳米管与三氧化钨共混改性填充聚酰亚胺的摩擦学性能研究[J].中国塑料,2026,40(8):17-22,6.
