水溶性聚酯的流变行为  

Rheological behavior of water-soluble polyester

作　　者：齐庆莹[1] 陈文兴[1] 秦伟明[1] 凌荣根[1] 孙福[1] 

机构地区：[1]浙江理工大学材料与纺织学院,浙江杭州310018

出　　处：《纺织学报》2008年第8期11-14,共4页Journal of Textile Research

基　　金：浙江省重大科技攻关项目(2005C11027-01)

摘　　要：由对苯二甲酸(PTA)、乙二醇(EG)、间苯二甲酸乙二酯-5-磺酸钠(SIPE)共缩聚合成水溶性聚酯(WSP)。采用Rosand RH7型毛细管流变仪对自制WSP的流变行为进行研究。结果显示,随着温度升高,WSP剪切黏度下降,非牛顿指数增大;相同温度和相同剪切速率下WSP的剪切黏度比PET大;WSP的剪切黏度随剪切速率的变化较PET更敏感,随着剪切速率的增大WSP的黏流活化能显著降低。同时分析了第3单体SIPE和温度对WSP流变行为的影响。The water-soluble polyester （WSP） was synthesized from VIA, EG and SIPE by copolycondensation. The rheological behavior of self-produced WSP was studied with Rosand RH7 capillary rheometer. The results show that the shear viscosity of WSP declines and the non-Newton index increases with rising of the temperature. Under the same conditions, the shear viscosity of WSP is higher than that of PET. The shear viscosity of WSP is more sensitive to shear rate than PET. The visco-flow activation energy declines with increase of shear rate. The influence of the third monomer SIPE and temperature on rheological behavior was also investigated.

关 键 词：水溶性聚酯 流变行为 非牛顿指数 黏流活化能 

分 类 号：TS102.52[轻工技术与工程—纺织工程]