HIGH-STRENGTH POLY(L-LACTIDE) FIBERS BY A DRY-SPINNING HOT-DRAWING PROCESS .1. INFLUENCE OF THE AMBIENT-TEMPERATURE ON THE DRY-SPINNING PROCESS

被引：29

作者：

POSTEMA, AR ^{[1
]}

LUITEN, AH ^{[1
]}

PENNINGS, AJ ^{[1
]}

机构：

[1] STATE UNIV GRONINGEN,DEPT POLYMER CHEM,9747 AG GRONINGEN,NETHERLANDS

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1990年 / 39卷 / 06期

关键词：

D O I：

10.1002/app.1990.070390605

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this paper the influence of the ambient temperature of the spinline during dry spinning of PLLA solutions has been discussed. Variation of this ambient temperature induced variation of the extrudate swell of the spinline, affected by the rate of solidification of the PLLA. By way of phase separation, porous filaments were achieved in which the morphology depended on the applied ambient temperature. Hot drawing of these filaments led to tensile strengths varying between 1.1 and 2.2 GPa. An optimal tensile strength of 2.2 GPa was achieved by hot drawing of a filament which was spun into a surrounding of 25°C. Copyright © 1990 John Wiley & Sons, Inc.

引用

页码：1265 / 1274

页数：10