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

作者：Cui, Shixing; Yun, Zhi^*; Gui, Xia

来源：Chinese Journal of Chemical Engineering, 2017, 25(1): 130-136.

DOI：10.1016/j.cjche.2016.06.001

• Methyl oleate
• Trimethyl chlorosilane
• Acid binding agent
• N,N-diisopropylethylamine
• Lubricity
• Silicon-based biological lubricating base oil

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 degrees C, reaction time 1.5 h.

• 出版日期2017-1
• 单位南京工业大学