摘要
采用毛细管流变仪研究了生物降解共聚酯聚对苯二甲酸丁二醇/己二酸丁二醇/对苯二甲酸乙二醇/己二酸乙二醇共聚酯(PBATE)的流变性能.结果表明:PBATE共聚酯属于假塑性流体;在一定的剪切速率下,共聚酯PBATE的表观黏度随着温度的升高而下降;随着剪切速率的提高,PBATE共聚酯的表观黏度对剪切速率的依赖性较强,而对温度变化的敏感性却降低.
The rheological properties of PBATE copolyester were studied with capillary rheometer. The result showed that PBATE copolyester was a typical pseudoplastic fluid; at a certain shear rate, the apparent viscosity of copolyester declined as the temperature increased; the dependence of the apparent viscosity on shear rate increased with the increasing of shear rate, whereas the temperature sensitivity decreased.
出处
《河南科学》
2013年第12期2143-2145,共3页
Henan Science
关键词
共聚酯
流变性
特性黏度
非牛顿指数
黏流活化能
copolyester
rheological properties： apparent viscosity
non-Newton index
viscous flow activationenergy
