铅盐稳定剂对低卤阻燃PVC/PNBR热稳定性的影响  

The Influence of Lead Salt Stabilizer on Thermal Stability of Low-halogens Flame-retardant PVC/PNBR Thermoplastic Elastomer

作　　者：林龙[1] 张军[1] 崔黎[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《塑料科技》2006年第2期22-25,共4页Plastics Science and Technology

摘　　要：采用刚果红法研究了铅盐热稳定剂对低卤阻燃聚氯乙烯/粉末丁腈橡胶热塑性弹性体脱氯化氢热降解性的影响。结果表明:铅盐类热稳定剂在低卤阻燃PVC/PNBR热塑性弹性体中单独使用时,热稳定效果总体是三盐基硫酸铅>二盐基亚磷酸铅。当二盐基亚磷酸铅、三盐基硫酸铅并用时可提高体系的初始变色温度。It studied the influencing effects of lead salt thermal stabilizers on the dehydrochlorination-thermal degradation of low-halogens flame-retardant poly（vinyl chloride）/powder nitrile-butadiene rubber （PVC）/ PNBR thermoplastic elastomer by means of Congo red method. The experimental results showed that the thermal stability effect of 3PbO is better than that of 2PbO in terms of inhibiting of dehydrochlorination of PVC/ PNBR elastomer when they are used respectively. The initial dehydrochlorination temperature of PVC/PNBR elastomer could be improved when both 3PbO and 2PbO are used simultaneously.

关 键 词：聚氯乙烯 热塑性弹性体 阻燃 铅盐热稳定剂 脱氯化氢 刚果红法 

分 类 号：TQ334[化学工程—橡胶工业]