POLYETHYLENE FIBER FORMATION IN TUBULAR FLOW .1. OBSERVATIONS OF GROWTH-PATTERN AND FIBER PROPERTIES

被引：18

作者：

RIETVELD, J ^{[1
]}

MCHUGH, AJ ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT CHEM ENGN,URBANA,IL 61801

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1985年 / 23卷 / 11期

关键词：

CRYSTALS - Growing - FLOW OF FLUIDS - Pipes;

D O I：

10.1002/pol.1985.180231107

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The process of seeded growth of fibrillar polyethylene crystals has been studied in a tubular flow geometry for 0. 01-wt% solutions of a high-molecular-weight polyethylene in xylene. The transformation sequence has been followed visually by using polarized-light illumination in conjunction with a video camera. The net result of these observations is to conclude that fibrillar crystal growth during flow is always preceded by the formation of a liquidlike phase transformation which produces the concentrated, unoriented precursor.

引用

页码：2339 / 2358

页数：20

共 72 条

[1] MECHANISMS OF POLYMER CRYSTALLIZATION FROM FLOWING SOLUTIONS [J].