摘要
采用机械性能、耐热性、红外、DSC等分析测试方法，系统研究了PC／PBT抑制酯交换反应的方法，试验发现AMSP在钝化PBT中残留T1催化剂方面添加0．3phr时效果最佳；试验还进一步发现，用SAG（SAN～GMA）对PBT采取封端的方法钝化其端～COOH也是抑制酯交换反应的可行的手段，在实际应用中两者可复合使用，并指出GMA含量在2名～5％为最佳范围。
Choosing mechanical properties, heat resistance property, IR, DSC analysis test method, the ester exchange inhibition of PC/PBT was studied, the results found that AMSP was the best in residuing Ti catalysts in PBT when its dosage was 0.3 phr. Experiment also found that adding SAG （SAN - GMA） in PBT, reacting with -COOH was also a feasible method of ester exchange inhibition. The two methods cound be used together. The results points out that the best scope of GMA content was 2% - 5%.
出处
《塑料制造》
2014年第3期74-80,共7页
Plastics Manufacture
关键词
PC
PBT
酯交换反应
封端剂
PC, PBT, transesterification, blocking agent
