李邵波,秦艳分,沈金科,周翔,王秀华
LI Shao-bo,QIN Yan-fen,SHEN Jin-ke,ZHOU Xiang,WANG Xiu-hua(Key Laboratory of Advanced Textile Materials and Manufacturing Technology

• 1:浙江理工大学先进纺织材料与制备技术教育部重点实验室

摘要(Abstract)：

以对苯二甲酸、丁二酸和乙二醇为单体合成了3组不同特性黏度的聚(丁二酸乙二酯-共-对苯二甲酸乙二酯)(PEST),采用毛细管流变仪重点研究了样品的流变性能。结果表明:共聚酯PEST是假塑性流体,呈现典型的切力变稀现象;随着剪切速率增大,黏流活化能降低;非牛顿指数随着特性黏度的增大而减小,随温度的升高而增大;结构黏度指数随着温度升高而降低,随特性黏度的增大而逐渐增加。流变性能的研究结果对PEST共聚酯的加工生产提供了一定参考。
Poly(ethylene succinate-co-ethylene terephthalate)(PEST) with different intrinsic viscosity was synthesized via direct polycondensation from three monomers of terephthalic acid,succinic acid and ethylene glycol.The rheological properties of resultant PEST were investigated with a capillary rheometer.The results showed that copolyester PEST exhibited a pseudoplastic fluid flow feature,and had low flow activation energy.Its non-newtonian index(n) decreased with the increase of intrinsic viscosity of copolyester,but increased with increasing temperature.Moreover,structure viscosity index increased with the increase of intrinsic viscosity of copolyester,but decreased with increasing temperature.The studies of rheological properties were valuable for production of PEST.

关键词(KeyWords)： 聚(丁二酸乙二酯-共-对苯二甲酸乙二酯);流变性能;表观黏度;非牛顿指数
poly(ethylene succinate-co-ethylene terephthalate),rheological property,apparent viscosity,non-newtonian index

Abstract:

Keywords:

基金项目(Foundation): 浙江省重点科技创新团队项目(2009R50013)

作者(Author): 李邵波,秦艳分,沈金科,周翔,王秀华
LI Shao-bo,QIN Yan-fen,SHEN Jin-ke,ZHOU Xiang,WANG Xiu-hua(Key Laboratory of Advanced Textile Materials and Manufacturing Technology

DOI: 10.16090/j.cnki.hcxw.2012.09.006

参考文献(References)：

• [1]韩伟,张敏,宋洁,等.对生物降解聚合物PBS共聚改性的研究[J].塑料,2008,37(3):87-89.
• [2]Yang Jing,Hao Qinghui,Liu Xiaoyun,et al.Novel biodegradablealiphatic poly(butylene succinate-co-cyclic carbonate)s with functionaliz-able carbonate building blocks.1.Chemical synthesis and their structuraland physical characterization[J].Biomacromolecules,2004,5(1):209-218.
• [3]Dimitrios N Bikiaris,George Z Papageorgiou Achilias,Dimitris S.Synthesis and comparative biodegradability studies of three poly(alkylenesuccinate)s[J].Polymer Degradation and Stability,2006,91(6):31-43.
• [4]HAN L,ZHU G X,ZHANG W,et al.Composition,thermal properties,and biodegradability of a new biodegradable aliphatic/Aromatic Copolyester[J].J Appl Polym Sci,2009,111(3):1 298-1 306.
• [5]李婷婷,顾晶君,李发学,等.聚丁二酸丁二酯-共-对苯二甲酸丁二酯流变性能研究[J].合成纤维,2007,36(2):1-4.
• [6]何曼君,陈维孝.高分子物理[M].上海:复旦大学出版社,1990:261.
• [7]董纪震,罗鸿烈,王庆瑞,等.合成纤维生产工艺学(第二版,上册).北京:中国纺织出版社,1996:52.
• [8]江长明,姚玉元,崔连臣,等.低熔点聚(对苯二甲酸/间苯二甲酸)丙二醇酯-聚乙二醇流变性能的研究[J].合成纤维,2010,39(9):25-28.
• [9]陈克权,张伟,张鹰.聚对苯二甲酸丙二酯熔体拉伸流变性能研究[J].合成纤维,2004,33(2):4-6.