Tribological and antioxidation properties study of two N-containing borate ester derivatives as additive in rapeseed oil

Zhongyi He; Liping Xiong; Feng Xie; Mingxue Shen; Sheng Han; Jianqiang Hu; Wenyuan Xu

doi:10.1371/journal.pone.0207267

Tribological and antioxidation properties study of two N-containing borate ester derivatives as additive in rapeseed oil

PLoS One. 2018 Dec 10;13(12):e0207267. doi: 10.1371/journal.pone.0207267. eCollection 2018.

Authors

Zhongyi He¹, Liping Xiong¹, Feng Xie², Mingxue Shen¹, Sheng Han³, Jianqiang Hu², Wenyuan Xu¹

Affiliations

¹ School of Materials Science and Engineering, East China Jiaotong University, Nanchang, China.
² Department of Aviation Oil and Material, Air Force Logistics College, Xuzhou, China.
³ Shanghai Applied Technology University, Shanghai, China.

Abstract

Two kinds of phenol- and N- containing borate ester, BTEB and BMEB have good hydrolysis stability due to the B-N coordination bond. The PB value improved by 60.7% and 67.6% respectively at 0.5wt% BTEB, BMEB in rapeseed oil. Their antiwear effect increases with the increase of adding content, and BMEB is better than BTEB. The friction-reducing effect of BTEB is better than BMEB. All additives formed a protective film which containing BOx, FeOx and other organic nitrogen compounds. The better capacities of BMEB may due to the complex boundary lubricating film which contain ferrous sulfate, ferrous sulfide. All additives possessed good antioxidation effect, and it increased the oxidation activation energy than rapeseed oil by 51.15% and 78.82% respectively at 0.25wt%.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Antioxidants / chemistry*
Borates / chemistry*
Esters / chemistry*
Friction
Hydrolysis
Motion
Nitrogen / chemistry*
Phenol / chemistry
Rapeseed Oil / chemistry*
Surface Properties

Substances

Antioxidants
Borates
Esters
Rapeseed Oil
Phenol
Nitrogen

Grants and funding

The authors acknowledge the financial support provided by the National Natural Science Foundation of China (21563012, 21363008) to ZH; Major academic and technological leaders of Jiangxi Province of China (20162BCB22020) to ZH; Jiangxi Natural Science Foundation of China (20143ACB20003, 20142BAB203015, 20171BCD40009, 20181BAB203010) to ZH; Jiangxi Provincial Education Department Foundation of China (GJJ170371) to LX; Jiangsu Science Foundation of China (BK20151137) to FX. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.