CHEN Yonggang， FENG Pengyu， LIU Xiang， ZHANG Lei

(College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan 618307, China)

Abstract: Oleylamine-modified carbon nanoparticles (CNPs-OA) were synthesized by facile one-pot pyrolysis method. The structure and morphology of CNPs-OA were characterized by FTIR, DLS and TEM. The dispersion stability and anti-friction and anti-wear properties of CNPs-OA in neopentyl polyol ester (NPE-2) were researched. The wear scar surface was characterized by three-dimensional optical microscope and XPS. The results show that CNPs-OA has good dispersion stability in NPE-2 and can significantly improve the anti-friction and anti-wear performance of the base oil. Compared with the blank base oil, the mean friction coefficient is reduced by 11.4% with 0.5% additive concentration. When the additive concentration is 1.0%, the mean wear volume is reduced by about 45.3%. CNPs-OA forms a protective film on the metal surface through tribochemical reaction, while carbon nanoparticles form a repaired film on the surface of the friction pair. The synergy of the two enhances the anti-friction and anti-wear properties of NPE-2.

Keywords: carbon nanomaterial; anti-friction and anti-wear; neopentyl polyol ester; carbon-based additive; lubrication

中图分类号：TB34

文献标志码：A

文章编号：1008-5548(2021)02-0096-06

DOI:10.13732/j.issn.1008-5548.2021.02.013

收稿日期： 2020-09-10， 修回日期：2020-09-27，在线出版时间：2020-12-22 16:22。

基金项目：教育部“新工科”研究与实践项目，编号：GK177；中国民航飞行学院基金项目，编号：J2020-114。

第一作者简介：陈勇刚(1977—)，男，硕士生导师，教授，研究方向为航空安全系统工程，航空安全管理，可靠性等。E-mail：501342198@qq.com。

通信作者简介：刘翔(1983—)，男，博士，工程师，研究方向为航空油料、安全工程、应用化学方面等。E-mail：128299390@qq.com。