THE STRUCTURE AND RHEOLOGY OF MOLTEN ULTRA-HIGH-MOLECULAR-MASS POLYETHYLENE

被引：38

作者：

GAO, P

MACKLEY, MR

机构：

[1] UNIV CAMBRIDGE,DEPT CHEM ENGN,CAMBRIDGE CB2 3RA,ENGLAND

[2] HONG KONG UNIV SCI & TECHNOL,DEPT CHEM ENGN,KOWLOON,HONG KONG

来源：

POLYMER | 1994年 / 35卷 / 24期

关键词：

UHMMPE; MELT STRUCTURE; PRESSURE ANNEALING;

D O I：

10.1016/0032-3861(94)90471-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report optical scattering and birefringence observations on molten ultra-high-molecular-mass polyethylene (UHMMPE) and correlate these observations with a structure in the melt relating to the original reactor powder. In the quiescent state, pressure annealing can cause the observed light scattering to disappear; however, subsequent flow of the material causes the scattering to develop again. A simple microrheological model is proposed to explain some of the structure, pressure annealing and flow effects that have been observed.

引用

页码：5210 / 5216

页数：7

共 18 条

[1] EXPERIMENTAL AND LINEAR VISCOELASTIC STRESS-DISTRIBUTION MEASUREMENTS OF HIGH-DENSITY POLYETHYLENE FLOWING INTO AND WITHIN A SLIT [J].