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.
出处
《合成纤维》
CAS
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)
