ADDITIONAL OBSERVATIONS ON THE SURFACE MELT FRACTURE-BEHAVIOR OF LINEAR LOW-DENSITY POLYETHYLENE

被引：83

作者：

MOYNIHAN, RH

BAIRD, DG

RAMANATHAN, R

机构：

[1] Department of Chemical Engineering, Polymer Materials and Interfaces Laboratory, Virginia Polytechnic Institute, Blacksburg, VA

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1990年 / 36卷

关键词：

capillary L/D ratio; fluoro-elastomer coatings; linear low-density polyethylene; slit-die; surface melt fracture;

D O I：

10.1016/0377-0257(90)85012-N

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

An experimental investigation of the surface melt fracture behavior of linear low-density polyethylene (LLDPE) is reported. The results of capillary experiments with different L/D ratios and slit-die experiments with various regions coated with fluoro-elastomer are presented; the role of the entry, land and exit regions in the surface melt fracture behavior is examined. In agreement with the mechanism proposed by Kuritz the results seem to suggest that the surface melt fracture arises at the die with the aid of pre-stressing conditions upstream of the exit. © 1990.

引用

页码：255 / 263

页数：9

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