热固性聚酰亚胺复合材料的往复摩擦磨损性能研究  

Reach on Reciprocating Friction and Wear Performance of Thermosetting Polyimide Composites

作　　者：刘福华[1] 明白 何瑜 周德东 赵凤[1] 李轩 Liu Fuhua;Ming Bai;He Yu;Zhou Dedong;Zhao Feng;Li Xuan(College of Automobile and Rail Transit,Yibin Vocational and Technical College,Yibin 644003,China;College of Mechanical Engineering,Sichuan University of Light Chemical Technology,Zigong 643000,China;Jiangyou Tianqi Guangfeng Advanced Materials Technology Co.,Ltd.,Mianyang 621000,China)

机构地区：[1]宜宾职业技术学院汽车与轨道交通学院,四川宜宾644003 [2]四川轻化工大学机械工程学院,四川自贡643000 [3]江油天启光峰新材料技术有限公司,四川绵阳621000

出　　处：《山东化工》2023年第17期5-8,共4页Shandong Chemical Industry

基　　金：四川省科技计划项目(2023YFG0239);宜宾市科技局项目(2021GY006)。

摘　　要：采用热模压成型方法制备了玄武岩纤维增强、多元填料改性的热固性聚酰亚胺复合材料,研究了复合材料的组织结构、摩擦磨损性能与磨损机制。结果表明:所制备的多元复合材料组织致密,玄武岩纤维和各填料分散均匀,硬度明显高于纯聚酰亚胺(PI)和玄武岩纤维改性聚酰亚胺(BF/PI)。摩擦磨损实验结果表明,多元复合材料具有优良的耐磨性能和摩擦稳定性,摩擦系数明显低于PI和BF/PI,磨损率分别较纯PI试样和BF/PI试样低约50.3%和19.9%。A thermosetting polyimide composites modified with basalt fiber and other multi-fillers was prepared using hot press molding technique.The micro-structure,friction and wear performance,and wear mechanisms of the composites were investigated.The results showed that the multi-component polyimide composites had a dense structure,with basalt fibers and fillers uniformly dispersed.The micro-hardness of the composites was significantly higher than that of pure polyimide(PI)and basalt fibermodified polyimide(BF/PI).Friction and wear test results indicated that the multi-component composites exhibited excellent wear resistance and friction stability,with friction coefficients significantly lower than those of PI and BF/PI,and wear rates approximately 50.3%lower than pure PI samples and 19.9%lower than BF/PI samples.

关 键 词：聚酰亚胺 玄武岩纤维 复合摩擦材料 摩擦磨损 磨损机制 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]