不同类型脂肪酸对锂基润滑脂性能的影响

石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (7): 69-74.

不同类型脂肪酸对锂基润滑脂性能的影响

张奇锋,王忠,付蕾,曹乐,张伟

陕西理工大学材料科学与工程学院

收稿日期:2018-11-06 修回日期:2018-12-12 出版日期:2019-07-12 发布日期:2019-07-25
通讯作者: 王忠 E-mail:wangzhong6110@163.com
基金资助:
陕西省自然科学基础研究计划项目

EFFECT OF DIFFERENT TYPES OF FATTY ACIDS ON PERFORMANCE OF LITHIUM GREASE

Received:2018-11-06 Revised:2018-12-12 Online:2019-07-12 Published:2019-07-25
Supported by:

摘要/Abstract

摘要： 以85W-40重负荷车辆齿轮油为基础油，分别以十二羟基硬脂酸和硬脂酸为稠化剂，采用一步法制备含二硫化钼的十二羟基硬脂酸复合锂基润滑脂和硬脂酸复合锂基润滑脂，研究了不同类型的脂肪酸及二硫化钼添加量对复合锂基润滑脂性能的影响。结果表明：十二羟基硬脂酸复合锂基润滑脂比硬脂酸复合锂基润滑脂具有更高的烧结负荷、滴点和热安定性；与基础脂相比，十二羟基硬脂酸复合锂基润滑脂中二硫化钼的添加量（w）为10%时，承载能力提升96.8%，硬脂酸复合锂基润滑脂中二硫化钼的添加量（w）为15%时，承载能力提升100.0%。

关键词: 硬脂酸, 十二羟基硬脂酸, 锂基润滑脂, 二硫化钼

Abstract: Preparation of 12-hydroxystearic acid complex lithium grease and stearic acid complex lithium grease containing molybdenum disulfide were conducted through one step method using 12-hydroxystearic and stearic acid as thickener, respectively and 85W-40 heavy-duty vehicle gear oil as base oil. The effects of different types of fatty acids on the properties of lithium complex greases were investigated. The results showed that the lithium complex grease prepared by 12-hydroxystearic acid had higher sintering load, dropping point and thermal stability than the lithium complex grease prepared by stearic acid. Compared with the base grease, when the amount of molybdenum disulfide added to the lithium complex grease prepared from12-hydroxystearic acid was 10%, the load-bearing capacity increased by 96.8%; while for the complex lithium-based grease prepared by stearic acid, the load-bearing capacity increased 100% when the adding amount of disulfide was 15%.

Key words: stearic acid, 12-Hydroxystearic, lithium grease, MoS2

中图分类号:

张奇锋王忠付蕾曹乐张伟. 不同类型脂肪酸对锂基润滑脂性能的影响[J]. 石油炼制与化工, 2019, 50(7): 69-74.

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