Role of base oils in developing extreme pressure lubricants by exploring nano-PTFE particles

被引：41

作者：

Saini, Vinay ^{[1
]}

Bijwe, Jayashree ^{[1
]}

Seth, Sarita ^{[2
]}

Ramakumar, S. S. V. ^{[2
]}

机构：

[1] Indian Inst Technol Delhi, CART, New Delhi 110016, India

[2] Indian Oil Corp Ltd, R&D Ctr, Faridabad 121007, India

来源：

TRIBOLOGY INTERNATIONAL | 2020年 / 143卷

关键词：

Polytetrafluoroethylene; Extreme pressure additive; Weld-load; Nano-lubricants; TRIBO-PERFORMANCE; SULFUR; XPS; NANOPARTICLES; DISPERSANT; PHOSPHORUS; STABILITY; ADDITIVES; MECHANISM; FRICTION;

D O I：

10.1016/j.triboint.2019.106071

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The suitability of various basestock oils based on classification by American Petroleum Institute (API) as Group I, II, III and IV with polytetrafluoroethylene (PTFE) nano-particles (NPs) as extreme-pressure additive (EPA) in oil was investigated. The nano-lubricants (NLs) with 3% NPs of PTFE (approximate to 230 nm) were evaluated for their physical and tribological performance along with an in-depth studies on the stability aspects. The worn surfaces were examined thoroughly to analyse the mechanisms. Group I based NL, showed the highest weld load (620 kg) with 288% improvement. This was attributed to synergistic chemical action of PTFE NPs and Sulphur (in the base oil) with the base metal surface to form a stable and robust tribo-film.

引用

页数：11

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