固体酸催化制备橡胶籽油基环氧脂肪酸甲酯增塑剂  

PREPARATION OF EPOXIDIZED FATTY ACID METHYL OF RUBBER SEED OIL BY SOLID ACID

作　　者：陈洁[1] 蒋剑春[1] 聂小安[1] 常侠[1] 李翔宇[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室,南京210042

出　　处：《太阳能学报》2014年第11期2185-2190,共6页Acta Energiae Solaris Sinica

基　　金：中央级公益性科研院所基本科研业务费专项(CAFYBB2011010);“十二五”国家科技支撑计划(2012BAD32B03);浙江省与中国林业科学研究院省院合作林业科技项目(2010SY05)

摘　　要：以橡胶籽油为原料,采用自制的S_2O_8^(2-)/ZrO_2型固体酸催化剂制备环氧脂肪酸甲酯,产物环氧值可达4.55%,优于对甲苯磺酸和阳离子交换树脂催化剂。环氧化反应的较优工艺参数为:催化剂用量为3%,n(甲酯):n(CH_2OH):n(H_2O_2)=1:2.17:3.52,50℃滴加H_2O_2,2 h内滴完,继续60℃保温反应3 h。按相同配方制备对苯二甲酸二辛酯/PVC和环氧脂肪酸甲酯/PVC样品,比较两种增塑体系的热性能。DSC及TG测试表明,环氧脂肪酸甲酯可使样品的玻璃化转变温度降至4.49℃,降幅为对苯二甲酸二辛酯的近4倍,并具有较好的耐热稳定性。The epoxidized fatty acid methyl based on robber seed oil has been prepared with the self-made solid acid catalyst.The epoxy value is 4.55% which is better than that obtained from p-toluene sulphonic and acidcation exchange resin. The optimum condition of epoxidation has been obtained as follows, catalyst amount of 3%, n（FAME） ： n（formic acid） ： n（H202）=1 ： 2.17 ： 3.52, dropping H202 at 50 ℃ in 2 h, then keep reaction for 3 h at 60 ℃. The samples of DOTP/PVC and epoxidized fatty acid methyl/PVC have been made according to the same formula. The thermal performances of samples are testing by DSC and TG. The analysis results show that the Tg of epoxidized fatty acid methyl/PVC has decreased to 4.49 ℃, which is almost 4 times lower than that obtained from DOTP/PVC. Furthermore, the sample of EFAME/PVC also has good thermal stability.

关 键 词：环氧脂肪酸甲酯 增塑剂 固体酸 橡胶籽油 PVC 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]