白云母和高岭土作聚四氟乙烯润滑脂添加剂的摩擦学性能

石油炼制与化工 ›› 2021, Vol. 52 ›› Issue (11): 56-63.

白云母和高岭土作聚四氟乙烯润滑脂添加剂的摩擦学性能

夏延秋¹,李庆贺¹,王远慧¹,冯欣¹,杨洪涛²

1. 华北电力大学能源动力与机械工程学院
2. 湖北润德西科技有限公司

收稿日期:2021-02-01 修回日期:2021-06-02 出版日期:2021-11-12 发布日期:2021-10-29
通讯作者: 夏延秋 E-mail:xiayq@ncepu.edu.cn
基金资助:
北京市自然科学基金项目

TRIBOLOGICAL PROPERTIES OF MUSCOVITE AND KAOLIN AS ADDITIVES FOR PTFE GREASE

Received:2021-02-01 Revised:2021-06-02 Online:2021-11-12 Published:2021-10-29
Contact: Xia Yanqiu E-mail:xiayq@ncepu.edu.cn

摘要/Abstract

摘要： 制备了油酸改性的白云母和高岭土，并将其用作聚四氟乙烯润滑脂添加剂；利用红外光谱（IR）表征改性前后白云母和高岭土；用体积电阻率测定仪、扫描电子显微镜（SEM）、载流往复式摩擦磨损试验机测试了添加白云母或高岭土的聚四氟乙烯润滑脂的体积电阻率、摩擦表面形貌、摩擦磨损性能。结果表明：油酸改性白云母的减摩性能最优，而油酸改性高岭土的抗磨性能最佳；载流条件下，油酸改性高岭土添加剂的润滑和绝缘综合性能最优，同时具有最大的接触电阻。

关键词: 油酸改性, 白云母, 高岭土, 载流摩擦磨损, 润滑脂, 绝缘性

Abstract: Muscovite and kaolin modified by oleic acid were prepared and used as additives for PTFE grease. The muscovite and kaolin before and after modification were characterized by IR. The volume resistivity, friction surface morphology and friction and wear properties of PTFE grease with muscovite or kaolin were measured by volume resistivity tester, scanning electron microscope (SEM) and current carrying reciprocating friction and wear tester. The results show that the friction reducing property of muscovite modified by oleic acid is the best, while the anti-wear property of kaolin modified by oleic acid is the best. Under the condition of current carrying, the oil modified kaolin additive has the best comprehensive properties of lubrication and insulation, and has the largest contact resistance.

Key words: oleic acid modification, muscovite, kaolin, current carrying tribological behaviors, grease, insulativity

夏延秋李庆贺王远慧冯欣杨洪涛. 白云母和高岭土作聚四氟乙烯润滑脂添加剂的摩擦学性能[J]. 石油炼制与化工, 2021, 52(11): 56-63.

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