The tribological performance and tribochemical analysis of novel borate esters as lubricant additives in rapeseed oil
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- 作者：Jincan Yan ; Xiangqiong Zeng ; Emile van der Heide ; Tianhui Ren
- 关键词：Borate ester ; Tribological performance ; Tribochemistry ; B&ndash ; N synergetic effect
- 刊名：Tribology International
- 出版年：March, 2014
- 年：2014
- 卷：71
- 期：Complete
- 页码：149-157
- 全文大小：2425 K
文摘
Two novel borate esters, tris (4-dodecylphenyl) borate and 2-(2-(4-dodecylphenoxy)-1, 3, 6, 2-dioxazaborocan-6-yl) ethanol were synthesized and applied as anti-wear and extreme pressure additives in rapeseed oil. The borate esters possess high anti-wear and extreme pressure properties. XANES and XPS were used to analyze the composition and structure of boundary films at the worn surfaces. It is shown that the additives form a protective film at the rubbed surfaces based on B2O3 and/or BN. B-N synergetic effect was found in the results which suggests that tribofilms composed of BN are to be preferred over tribofilms that consists of B2O3.