【摘要】 用ＤＳＣ方法对几种ＰＥＴ成核剂和促进剂的活性作了研究，发现苯甲酸钠具有较好的成核效果，分子质量小于２０００的ＰＥＧ具有较好的促进效果。成核剂的成核活性用Ｇｕｔｚｏｗ方法进行了定量表征，所得结果与ＤＳＣ和文献结果相符。另外，首次对促进剂的活性作了定量表征更多还原

【Abstract】 The effect of nucleating agents and nucleating promoter on the crystallization of PET were studied by means of DSC. It was found that sodium benzonate is a good nucleating agent and PEG with molecular weight less than 2 000 are suitable nucleating promoters for PET. At the same time, the nucleating activity was characterized quantitatively according to Gutzow method and the promoting activity of nucleating promoter was characterized quantitatively for the promoting activity of nucleating promoter was characterized quantitatively for the first time.更多还原