Modification of methyl oleate for silicon-based biological lubricating base oil

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• 作者：Shixing Cui ; Zhi Yun ; ^{yunzhi@njtech.edu.cn} ; Xia Gui
• 关键词：Methyl oleate ; Trimethyl chlorosilane ; Acid binding agent ; N ; N-diisopropylethylamine ; Lubricity ; Silicon-based biological lubricating base oil
• 刊名：Chinese Journal of Chemical Engineering
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：25
• 期：1
• 页码：130-136
• 全文大小：1177 K
• 卷排序：25

文摘

A new kind of silicon-based biological lubricating base oil with good viscosity-temperature behavior, viscosity index, thermostability, oxidation stability and wear resistance performance was synthesized as a derivative of methyl oleate. Trimethylsilylation reaction was introduced to further improve methyl oleate oxidation stability and lubricity after epoxidation and open-ring reactions. The order of effectiveness of acid binding agent was N,N-diisopropylethylamine (DIEA) > pyridine > diethylamine > triethylamine, and the effects of various parameters on the trimethylsilylation reaction as well as on the silicon-oxygen bond stability and reaction yield were studied. A maximum yield of 34.54% was achieved at hydroxyl/trimethyl chlorosilane/DIEA molar ratio of 1:1.25:1, reaction temperature 40 °C, reaction time 1.5 h.