关键词: 增塑剂, 环氧化, 环氧低热油, 聚氯乙烯, 大豆油

Abstract: Choose soybean oil as raw material which are usually to synthesize ESO and EFAME, use GC-MS measure the component and content, and used transesterification, epoxidation reaction, synthesized an epoxy plasticizer-epoxy low calorie oil(ELCO), and the performances of the plasticizing effects on PVC is tested. The results show that:The content of the unsaturated fatty acid reaches above 80%, it's perfectly suitable for synthesizing high epoxide number plasticizer; The content of monoacetate triglyceride in LCO would be maximum when the mole ratio of soybean oil to glyceryl triacetate is 1:1; In addition, pass the test of physical and chemical properties, DMA, film stretching, TGA-FT-IR, TGA-MS and thermal degradation kinetics. The results show that compared with ESO, ELCO has lower T_g(ELCO is -0.77℃, ESO is 6.13℃) and greater breaking elongation(ELCO is 370.56%, ESO is 321.11%); compared with EFAME, ELCO has higher flash point, lower heating loss and higher thermal stability. So ELCO is a better plasticizer product.

Key words: plasticize, epoxidation, ELCO, PVC, soybean oil