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  

Rheological Properties of Poly (trimethylene terephthalate/isophthalate)-co-Polyethylene Glycol

作　　者：江长明[1] 姚玉元[1] 崔连臣[1] 吕汪洋[1] 王秀华[1] 陈文兴[1] 

机构地区：[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,浙江杭州310018

出　　处：《合成纤维》2010年第9期25-28,共4页Synthetic Fiber in China

基　　金：国家科技支撑计划项目(2007BAE28B01;2007BAE28B02);教育部"长江学者和创新团队发展计划"创新团队(IRT0654);浙江省自然科学基金项目(Y4080341)

摘　　要：采用Rosand RH7型毛细管流变仪,对聚(对苯二甲酸/间苯二甲酸)丙二醇酯-聚乙二醇共聚物(PTTI-PEG)的流变性能进行了研究,并与常规PTT和PET的流变特性进行了比较。结果显示:共聚酯PTTI-PEG是典型的假塑性流体,随着温度升高,剪切黏度下降,非牛顿指数增大;随着剪切速率增大,黏流活化能降低。从PTTI-PEG、PET和PTT的流变性能比较发现,PTTI-PEG的流变曲线与PET和PTT的流变曲线在一定温度下较为吻合,这为PTTI-PEG与普通PET和PTT进一步复合纺丝提供了参考。The rheological behaviors of the poly （trimethylene terephthalate/isophthalate）-co-polyethylene glycol （PTTI-PEG） were studied with Rosand RH7 capillary rheometer,which were compared with rheological properties of the common PTT and PET.The results showed that PTTI-PEG was a typical pseudoplastic fluids,its shear viscosity declined and non-Newton index increased with the increasing of temperature.The visco-flow activition energy decreased with the increase of shear rate.Similarity among the flow curves suggested some compatibilities between PTTI-PEG,PET and PTT,providing a theoretical basis for further blending with other polymers.

关 键 词：低熔点 聚(对苯二甲酸/间苯二甲酸)丙二醇酯 聚乙二醇 共聚酯 流变性能 

分 类 号：TQ342.2[化学工程—化纤工业]