CAJ | 학술논문

以生物柴油的副产物粗甘油为原料，通过聚合反应得到聚合甘油；再与油酸通过酯化反应得到中间产物聚甘油不饱和脂肪酸多酯。然后在无溶剂条件下，以硫酸为催化剂进行环氧化反应得到增塑剂环氧化聚甘油多酯。考察了反应温度、反应时间、甲酸用量以及 H2O2用量对产物的环氧值的影响。同时采用了傅立叶变换红外光谱和热重分析对产物的结构和热稳定性进行表征。结果表明，最佳环氧化条件为：反应温度65℃，反应时间6 h，聚甘油不饱和脂肪酸多酯、甲酸、30％ H2O2质量比为1∶0.5∶1.2。产品的酸值为1.24 mg KOH／g，环氧值为6.4％，残留碘值为6.8 mg／100 g，具有较好的热稳定性，应用到 PVC 树脂中可有效地提高 PVC 的增塑性。
이생물시유적부산물조감유위원료，통과취합반응득도취합감유；재여유산통과지화반응득도중간산물취감유불포화지방산다지。연후재무용제조건하，이류산위최화제진행배양화반응득도증소제배양화취감유다지。고찰료반응온도、반응시간、갑산용량이급 H2O2용량대산물적배양치적영향。동시채용료부립협변환홍외광보화열중분석대산물적결구화열은정성진행표정。결과표명，최가배양화조건위：반응온도65℃，반응시간6 h，취감유불포화지방산다지、갑산、30％ H2O2질량비위1∶0.5∶1.2。산품적산치위1.24 mg KOH／g，배양치위6.4％，잔류전치위6.8 mg／100 g，구유교호적열은정성，응용도 PVC 수지중가유효지제고 PVC 적증소성。
With the by-product of biological diesel oil crude glycerine as raw material,polyglycerol was got by polymerization. Then polyglycerol unsaturated fatty acid ester was prepared by esterification reaction. Using sulfuric acid as catalyst without solvent, plasticizer of epoxy polyglycerol ester was prepared via epoxidation reaction. The influences of epoxidation reaction conditions such as reaction temperature,reaction time,the amounts of H2O2 and formic acid on the epoxy value of products were investigated. The structure and thermostability of the products were characterized by Fourier transform infrared spectrum and thermogravimetric analysis respectively. The results show that the optimized reaction conditions of epoxidation are as follows :the mass ratio of polyglycerol unsaturated fatty acid ester,formic acid and 30% H2O2 is 1∶0.5∶1.2,reaction temperature is 65℃ and reaction time is 6 h. The acid value is 1.24 mg KOH/g,epoxy value of product is 6.4%,residual iodine value is 6.8 mg/100 g. The plasticizer own preferably heat stability,when used in PVC resin can effectively increase the increasing of PVC plastic.