有机锡及其复合热稳定剂对PVDC降解性能的影响  

Influences of Organo-tin and Its Composite Heat Stabilizers on Degradability of PVDC

作　　者：马群锋[1] 郭彬[1] 杨月琴[1] 

机构地区：[1]南通职业大学化学工程系,江苏南通226007

出　　处：《塑料科技》2010年第11期80-82,共3页Plastics Science and Technology

摘　　要：用刚果红法测定了甲基锡、甲基锡/环氧大豆油和甲基锡/硬脂酸钙热稳定剂对聚偏二氯乙烯(PVDC)降解性能的影响。结果表明:对PVDC降解时释放氯化氢的抑制能力为甲基锡<甲基锡/环氧大豆油<甲基锡/硬脂酸钙,PVDC的刚果红试纸变色时间分别达到23、25和30min。甲基锡/环氧大豆油、甲基锡/硬脂酸钙复合热稳定剂的组成分别为2/1和1/3时具,有最佳的协同效应。Congo red method was used to measure the effects of heat stabilizers of methyltin,methyltin/ epoxidized soybean oil and methyltin/calcium stearate on the degradability of PVDC. The results show that the inhibitory capacity of methyltin is the weakest,followed by methyltin/epoxidized soybean oil,and methyltin/calcium stearate is the strongest. The discoloration times of Congo red test strips are respectively 23min,25min and 30min. When the mass ratio of methyltin to epoxidized soybean oil is 2：1,and methyltin to calcium stearate is 1：3,the best synergistic effects can be gained.

关 键 词：聚偏二氯乙烯 甲基锡 复合热稳定剂 刚果红法 降解性能 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]