用热差法研究成核剂对PET结晶性能的影响  

Influence of nucleator on PET's crystallization properties by DSC

作　　者：李海祥[1] 陈烜[1] 竭婧[1] 陈喆 陈龙敏 杜杰[1] 

机构地区：[1]海南大学材料与化工学院:海口570228 [2]国家非织造材料工程技术研究中心,澄迈570125

出　　处：《化工新型材料》2014年第6期181-183,共3页New Chemical Materials

基　　金：国家非织造材料工程技术研究中心开放课题(KFKT201101);海南省自然科学基金(512111)

摘　　要：通过溶液法制样,采用DSC测试方法测试了成核剂添加种类和添加量不同的PET树脂的结晶行为。结果表明:加入碘化钠、滑石粉、碳酸钠成核剂可以提高PET树脂的结晶性能,具体表现为提高PET的结晶温度和缩短其结晶时间,其中碘化钠成核剂的效果最为明显,滑石粉作为成核剂的效果不理想。由于成核剂和树脂相容性和溶液法残留的溶剂的影响,成核剂添加量对改善PET结晶性能的影响并不明显。The samples were prepared by solution blending method, and the non-isothermal crystallization analysis of PET samples with different types and amounts of nucleator were measured by DSC. The results showed that sodium io- dide, talcum and sodium carbonate can improve the crystallization properties of PET resin, increased the crystallization temperature and shorten the crystallization course. The nucleator effect of NaI was the most obvious, while that of talcum was not ideal. Because of the influences of components compatibility and residual solvent, increasing of nucleators can not obviously improve the crystallization properties of PET.

关 键 词：聚对苯二甲酸乙二醇酯 成核剂 DSC测试方法 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]