详细信息

苯乙烯-丙烯酸钠离聚物与聚乙二醇复合对PET结晶行为的影响  ( EI收录)  

Effect of styrene-sodium acrylate ionomer/poly(ethylene glycol) on crystallization behavior of PET

文献类型:期刊文献

中文题名:苯乙烯-丙烯酸钠离聚物与聚乙二醇复合对PET结晶行为的影响

英文题名:Effect of styrene-sodium acrylate ionomer/poly(ethylene glycol) on crystallization behavior of PET

作者:唐仕东[1];辛忠[1];赵亚囡[1]

机构:[1]华东理工大学化学工程联合国家重点实验室,产品工程系,上海200237

年份:2011

卷号:62

期号:12

起止页码:3569

中文期刊名:化工学报

外文期刊名:CIESC Journal

收录:CSTPCD;;EI(收录号:20120614748095);Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;

基金:国家自然科学基金项目(20206019,20806023);上海市科委优秀学科带头人计划项目~~

语种:中文

中文关键词:PET;苯乙烯-丙烯酸钠离聚物;聚乙二醇;结晶行为;复合成核

外文关键词:PET; styrene-sodium acrylate ionomer ; poly ( ethylene glycol) ; crystallization behavior; complex nucleating

摘要:利用差示扫描量热仪(DSC)研究了离聚物苯乙烯-丙烯酸钠(SAA-Na)和聚乙二醇(PEG)复配物对PET结晶性能的影响。结果表明,1%(质量分数)SAA-Na与5%PEG复配能够进一步提高PET的结晶速率,使熔融结晶温度由PET/SAA-Na的212.8℃升高到216.1℃,冷结晶温度由119.4℃降低到103.8℃,玻璃化转变温度则由79.4℃降低到66.2℃。非等温结晶动力学的分析表明,SAA-Na和PEG复配物的加入使PET的Avrami指数增加。
The crystallization of PET modified by the mixture of styrene-sodium acrylate ionomer (SAA- Na) and poly(ethylene glycol) (PEG) was investigated by differential scanning calorimeter (DSC). With the addition of 5% (mass) PEG, cold-crystallization temperature (Tcc) and glass transition temperature (Tg) of PET decreased significantly. Compared with PET/SAA-Na, the crystallization of PET/mixture (1%SAA-Na and 5 %PEG) was further enhanced, melt-crystallization temperature (Tmc) increased from 212.8℃ to 216.1℃, T= decreased from 119.4℃ to 103.8℃ and Tg from 79.4℃ to 66.2℃. The Jeziorny equation was used to analyze the non-isothermal crystallization kinetics of PET/mixture, and the results showed that the Avrami exponent n of PET/mixture was greater than that of neat PET.

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