乌桕籽油制备环氧脂肪酸异辛酯的工艺

摘要

选用具有丰富不饱和键的乌桕籽油为原料，采用了水解、酯化、环氧化等一系列反应合成了环保型增塑剂环氧脂肪酸异辛酯。并通过正交试验研究了脂肪酸异辛酯的环氧化工艺，确定了合成最佳工艺为：每百克脂肪酸异辛酯，甲酸30.37g，双氧水131.49g，反应温度65℃，反应4h后环氧值可达5.71。通过红外确定了产物的构成并考察了拉伸、热稳定性等性能，结果表明环氧脂肪酸异辛酯较邻苯二甲酸二辛酯（DOP）具有更好的热稳定性和挥发迁移性。%Using stillingia oil which has abundant unsaturated bond as raw material,,we synthesized the environmental friendly plasticizer epoxy fatty acid isooctyl ester(epoxy stillingia oil fatty acid isooctyl ester) through a series of reactions of hydrolysis,esterification and epoxidation. The optimal synthetic process of epoxy stillingia oil fatty acid isooctyl ester from fatty acid isooctyl ester was determined by orthogonal experiments. The optimal conditions are,formic acid 30.37g and H2O2131.49g per hundred grams fatty acid isooctyl ester,reaction temperature 65℃ and reaction time 4h,with which the epoxy value could reach 5.71. The functional groups of the product was determined by IR,and the tensile,thermal stability and other performance were also tested. The results showed that the epoxy fatty acid isooctyl ester had better thermal stability and volatile mobility than DOP.