Influence of Glyceryl Monostearate Adsorption on the Lubrication Behavior of a Slider Bearing

被引：0

作者：

Xu, Qiaoni ^{[1
]}

Jing, Zhaogang ^{[1
]}

Du, Shijie ^{[1
]}

Guo, Feng ^{[1
]}

Mu, Ruitao ^{[1
]}

机构：

[1] Qingdao Univ Technol, Sch Mech & Automot Engn, Qingdao 266520, Peoples R China

来源：

LUBRICANTS | 2024年 / 12卷 / 03期

基金：

中国国家自然科学基金;

关键词：

slider-on-disc contact; organic friction modifier; glyceryl monostearate; wettability; film thickness; coefficient of friction; contact angle hysteresis; interfacial slip; HALF-WETTED BEARING; FRICTION MODIFIERS; CONTACT-ANGLE; SLIP; LIQUID; INTERFACE;

D O I：

10.3390/lubricants12030067

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Glyceryl monostearate (GMS) was used as an organic friction modifier (OFM) and added to the base oil (PAO10, poly alpha-olefin) in this study. The film thickness and friction coefficient of the base oil added with GMS (PAO10G) under different slider inclinations and loads were investigated experimentally by using a slider-on-disc contact lubricant film measurement system, and the effect of the adsorption of GMS on the friction behavior of lubricant was studied. Contact angle hysteresis (CAH) was used to evaluate the wettability of the solid-liquid interface, and its correlation with the coefficient of friction was analyzed. The results show that CAH is in good agreement with the wettability of the solid-liquid interface. Compared with the base oil, the wettability of POA10G is weak, which can effectively reduce the coefficient of friction. However, different from the classical lubrication theory, the film thickness of PAO10G is higher than that of PAO10; this unusual phenomenon is preliminarily explained by the interface slippage in this paper.

引用

页数：16

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