DOP/TOTM并用对软质PVC性能的影响  

Effect of combined DOP/TOTM on the properties of soft PVC

作　　者：罗文龙[1] 苑会林[1] 

机构地区：[1]北京化工大学材料科学与工程学院成型加工试验室,北京100029

出　　处：《聚氯乙烯》2016年第8期29-31,35,共4页Polyvinyl Chloride

摘　　要：研究了DOP和TOTM并用对软质PVC力学性能、玻璃化转变温度、热老化性能的影响。结果表明:随着TOTM用量的增加,软质PVC的断裂伸长率增加,拉伸强度减小,玻璃化转变温度降低,热老化后断裂强度变化率和断裂伸长率变化率减小,热失重质量减小,TOTM的增塑效果比DOP更好一些。The effect of combined DOP/TOTM on the mechanical property, glass transition tem- perature and heat aging property of soft PVC was studied. The results showed that with the increase in TOTM content, the elongation at break of soft PVC increased, however, the tensile strength, the glass transition temperature, the change rate of fracture strength after heat aging, the change rate of elongation at break, and the weight loss by thermal aging were all reduced. The plasticizing effect of TOTM was better than that of DOP.

关 键 词：PVC DOP TOTM 增塑剂 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]