Study on Rheological Properties of the Biodegradable Aliphatic-aromatic PBST Copolyesters

摘要：

Rheological properties of poly (butylene succinate- co-butylene terephthalate) (PBST) samples with different molecular weight are investigated, including the dependence of the apparent shear viscosity, non-Newtonian index, structural viscosity index and viscous flow activation energy. It is found that PBST melt is shear-thinning fluid; both non- Newtonian index and structural viscosity index decrease with increasing apparent shear rate. Moreover, with the increase of molecular weight, the structural viscosity index and viscous flow activation energy become higher and the non-Newtonian index becomes lower, indicating the rheological properties become worse.

关键词： PBST copolyesters rheological properties non-Newton fluid

作者: LI Faxue LUO Shengli YU Jianyong

作者单位: College of Textiles, Donghua University, Shanghai 200051, P. R. China Institute of Modern Textiles, Donghua University, Shanghai 200051, P. R. China

会议类型: 国际会议

会议名称: 2007年先进纤维与聚合物国际会议

会议地点: 上海

会议语种:英文

页码: 28-31

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）