摘要
通过分子结构设计,将甲基咪唑引入氯化石蜡(CP)分子链中,合成氯化石蜡基支载型离子液体(CP-mimCl),并通过与基础油复配应用于极压抗磨领域。结果表明,热稳定性方面,最大分解温度CP-mimCl提高24℃,最大分解速率降低3.2%/min,并且表现出分解速率较低的特点;极压抗磨性能方面,不同载荷下CP-mimCl复合混合液的平均磨斑直径较CP复合混合液降低6.8%、7.7%、7.3%,摩擦系数降低36.2%,平均p_B值增大15.7%;SEM结果表明,CP-mimCl复合混合液的磨斑形貌较CP复合混合液更为致密和细腻。
Methylimidazole was grafted onto the molecular chain of chlorinated paraffin(CP)to synthesize chlorinated paraffin-based supported ionic liquids(CP-mimCl)through molecular structural design,which was used in extreme pressure and antiwear field by compounding with base oil.The experiment results showed that the maximum decomposition temperature of CP-mimCl increased by 24℃,the maximum decomposition rate decreased by 3.2%/min,and also showed the characteristics of uniform weightlessness.Compared with CP composite solution,the average wear spot diameter of CP-mimCl composite solution decreased by 6.8%,7.7%,7.3%under different loads,friction coefficient decreased by 36.2%,and the average p_B increased by 15.7%.The results of SEM showed that the wear spot morphology by CP-mimCl composite solution was more dense and delicate than that by CP composite solution.
作者
王中立
胡先海
程从亮
谢金刚
江照雯
Wang Zhongli;Hu Xianhai;Cheng Congliang;Xie Jin'gang;Jiang Zhaowen(College of Architectural Engineering,Anhui Vocational and Technical College,Hefei 230011,China;Anhui Key Laboratory of Advanced Building Materials,Hefei 230022,China;State Grid Anhui Maintenance Company,Hefei 230061,China)
出处
《机械科学与技术》
CSCD
北大核心
2020年第2期253-257,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金面上项目(51573001)
安徽省高校优秀青年人才支持技术项目(gxyq2019177)资助.
关键词
氯化石蜡
甲基咪唑
离子液体
极压抗磨
structural design
decomposition
antiwear additives
extreme pressure
experiment
