离子液体改性石墨强化复合锂基脂的摩擦学性能和导电能力

石油炼制与化工 ›› 2025, Vol. 56 ›› Issue (7): 153-161.

离子液体改性石墨强化复合锂基脂的摩擦学性能和导电能力

夏延秋¹,Nay Min Aung¹,陈文昊¹,杨洪涛²,杨阔¹,贾云峰¹,胡盛学³

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
3. 中国石油上海润滑油产品设计分公司

收稿日期:2024-12-06 修回日期:2025-01-26 出版日期:2025-07-12 发布日期:2025-07-01
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;固体润滑国家重点实验室开放课题

TRIBOLOGICAL PROPERTIES AND ELECTRICAL CONDUCTIVITY OF COMPOSITE LITHIUM GREASE REINFORCED BY IONIC LIQUID MODIFIED GRAPHITE

Received:2024-12-06 Revised:2025-01-26 Online:2025-07-12 Published:2025-07-01

摘要/Abstract

摘要： 以季戊四醇酯为基础油、复合锂皂为稠化剂，以不同烷基链长的六氟磷酸盐类离子液体改性石墨为添加剂，制备了复合锂基润滑脂，测试了其铜片腐蚀性和体积电阻率，进而使用高速往复摩擦磨损试验机测定其在载流和非载流下的摩擦学性能，并用扫描电子显微镜(SEM)和X射线光电子能谱(XPS)对摩擦学性能测试后摩擦副表面进行了表征。结果表明：离子液体改性石墨添加剂提高了润滑脂的抗磨性能、减摩性能和导电能力；较长烷基链离子液体改性石墨能形成更致密的化学保护膜，表现出更好的减摩、抗磨性能；较短烷基链离子液体改性石墨中的电子具有更好的传导能力，表现出较低的体积电阻率和更好的导电性。

关键词: 改性石墨, 离子液体, 减摩抗磨, 导电能力

Abstract: Using pentaerythritol ester as base oil, lithium complex soap as thickener, and adding ionic liquid modified graphite with different chain lengths as additives, lithium complex grease was prepared. The corrosivity and volume resistivity of the grease were tested. The tribological properties under current-carrying and non-current-carrying conditions were determined by using high-speed reciprocating friction and wear tester. The worn surfaces were analyzed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results show that the modified graphite material improves the wear resistance and conductivity of the base grease. Ionic liquids with longer chains form denser chemical films and exhibit the best friction reduction and anti-wear properties. Ionic liquids with shorter chains have lower volume resistivity and the best conductivity due to reduced electron entanglement.

Key words: modified graphite, ionic liquid, anti-friction and anti-wear, electrical conductivity

夏延秋 Nay Min Aung 陈文昊杨洪涛杨阔贾云峰胡盛学. 离子液体改性石墨强化复合锂基脂的摩擦学性能和导电能力[J]. 石油炼制与化工, 2025, 56(7): 153-161.

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