Khalkar Sharmishtha, Bhowmick DiptiNarayan, Pratap Amit
Department of Oils, Oleochemicals and Surfactants Technology, Institute of Chemical Technology, Mumbai, India.
J Oleo Sci. 2012;61(12):723-8. doi: 10.5650/jos.61.723.
Condensation product of fatty acids and fatty alcohols is termed as wax esters. A series of fatty acids and fatty alcohols both saturated & unsaturated ranging from C 12 to C 22 were synthesised using p-TSA as a catalyst. Carbonyl functionality was confirmed by infrared spectrophotometer. Wax esters were used as friction modifier additives at 1%, 3%, 5% in 150N and 500N commercial petroleum base stocks. These base stocks were characterized by tribological properties like wear scar, weld load and coefficient of friction. All the tribological properties were better for saturated products than the unsaturated ones.
脂肪酸和脂肪醇的缩合产物被称为蜡酯。使用对甲苯磺酸作为催化剂合成了一系列饱和及不饱和的脂肪酸和脂肪醇，其碳链长度从C12到C22。通过红外分光光度计确认了羰基官能团。蜡酯在150N和500N的商用石油基础油中分别以1%、3%、5%的比例用作摩擦改进剂添加剂。这些基础油通过诸如磨斑直径、焊接载荷和摩擦系数等摩擦学性能进行表征。所有摩擦学性能对于饱和产物而言都优于不饱和产物。
