亚磷酸酯类抗氧剂对聚碳酸酯湿热老化影响  

Phosphite antioxidant influence on damp-heat aging of polycarbonate

作　　者：毕静利 张超 BI Jing-li;ZHANG Chao(Luxi Chemical Group Co.,Ltd.,Liaocheng 252211,China)

机构地区：[1]鲁西化工集团股份有限公司,山东聊城252211

出　　处：《精细与专用化学品》2020年第8期44-46,共3页Fine and Specialty Chemicals

摘　　要：阐述了亚磷酸酯类抗氧剂的水解机理,描述了酯类在酸作用下的水解过程。分析了不同种类、不同用量亚磷酸酯类抗氧剂对聚碳酸酯(PC)湿热老化后分子量和熔体质量流动速率(MFR)的影响。通过不同种类亚磷酸酯抗氧剂的结构对比,为聚碳酸酯选择亚磷酸酯抗氧剂种类提供依据。The hydrolysis mechanism of phosphite antioxidants and thehydrolysis process of esters under the action of acid were introduced.The effects of different types and different amounts of phosphite antioxidants influence on molecular weight and melt mass flow rate after the damp-heat aging of polycarbonate(PC)were analyzed in this article.According to the structural comparison of different types of phosphite antioxidants,it provided ideas for the polycarbonate to select phosphite antioxidants.

关 键 词：聚碳酸酯 亚磷酸酯类抗氧剂 双85湿热老化 熔体质量流动速率 

分 类 号：TQ314[化学工程—高聚物工业]