Non-Newtonian rheological behavior of semi-dilute ultra-high molecular weight polyethylene solution in gel-spinning process. 1: Concentration effect on the fundamental rheological properties

被引：20

作者：

Ohta, Y ^{[1
]}

Murase, H ^{[1
]}

Sugiyama, H ^{[1
]}

Yasuda, H ^{[1
]}

机构：

[1] Toyobo Res Ctr Co Ltd, Ohtsu, Shiga 5200292, Japan

来源：

POLYMER ENGINEERING AND SCIENCE | 2000年 / 40卷 / 11期

关键词：

D O I：

10.1002/pen.11373

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The rheological properties of a semi-dilute ultra-high molecular weight polyethylene (UHMw-PE)/paraffin wax solution were investigated by mainly focusing on the influence of its concentration on the shear flow viscosity. It was found that the UHMw-PE solution exhibits a shear thinning behavior at a very wide shear rate range from 10(-4) to higher than 10(3) sec(-1). Furthermore, this typical non-Newtonian behavior was more obvious with a concentration increase. From the concentration dependence of the zero-shear creep compliance or other rheological factor, it was found that the extremely large M-e value of the system gives rise to various kinds of non-Newtonian behaviors, especially those highly elastic in nature. Finally, the origin of the abnormal stress fluctuation during the steady shear measurement was found to be related to the shear-induced structural development of the solution.

引用

页码：2414 / 2422

页数：9

共 26 条

[21] THE EFFECT OF TEMPERATURE AND DEFORMATION RATE ON THE HOT-DRAWING BEHAVIOR OF POROUS HIGH-MOLECULAR-WEIGHT POLYETHYLENE FIBERS [J].