环氧油酸钙(锌)的合成及在PVC中的应用  

Synthesis and Application of Epoxidized Calcium(zinc) Oleate as Thermal Stabilizers in PVC

作　　者：阮晓凯[1] 倪忠斌[1] 东为富[1] 陈明清[1] 

机构地区：[1]江南大学材料与工程学院,江苏无锡214122

出　　处：《塑料》2012年第2期81-83,共3页Plastics

摘　　要：以油酸、甲酸和双氧水为原料合成了环氧油酸,经复分解反应制得了环氧油酸钙(锌)盐,将其作为热稳定剂应用于PVC中,通过电导率、热老化以及热失重测试来考察环氧油酸钙(锌)的热稳定特性。研究结果表明:环氧油酸钙具有长期热稳定性,环氧油酸锌具有初期热稳定性,当环氧油酸锌/环氧油酸钙的比例为1∶3时,PVC的热稳定效果最好。Oleic acid, formic acid and peroxide were used to synthesize epoxidized oleic acid, afterward, epoxidized calcium （zinc） oleate were synthesized by double decomposition reaction. The products were used as thermal stabilizers in PVC. Investigation of thermal stability of epoxidized calcium （zinc） oleate was investigated by means of conductivity test, heating ageing test and thermo gravimetric analysis （TGA） test. The results showed that the epoxidized calcium oleate exhibit long-term thermal stability, epoxidized zinc oleic acid exhibit initial-term thermal stability. It came to be the best thermal stability when the ratio of epoxidized zinc oleate/epoxidized calcium oleate was 1 ： 3.

关 键 词：PVC稳定剂 环氧油酸钙 环氧油酸锌 合成 热稳定性 

分 类 号：TQ314.245[化学工程—高聚物工业] TQ325.3