Fiber orientation during equal channel angular extrusion of short fiber reinforced thermoplastics

被引：22

作者：

Creasy, TS ^{[1
]}

Kang, YS ^{[1
]}

机构：

[1] Texas A&M Univ, Polymer Technol Ctr, College Stn, TX 77843 USA

来源：

JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS | 2004年 / 17卷 / 03期

关键词：

extrusion; plastic deformation; ECAE; fiber orientation; processing;

D O I：

10.1177/0892705704035403

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Glass-fiber/polyacetal cylindrical rods prepared by conventional compounding and extrusion were processed by equal channel angular extrusion (ECAE). The initial material contained 109.8 mu m long fibers with uniformly distributed fiber angle orientations between 11.8 and 56.0 degrees. One extrusion pass with a soft matrix at 73 degrees C directed the fibers to a loglogistic distribution with a mean orientation angle of 23.5 degrees. ECAE at room temperature did this with mean fiber angles becoming 20.8 and 23.6 degrees for one and two passes respectively. The interquartile range of the angles narrowed with reduced processing temperature and number of processing passes.

引用

页码：205 / 227

页数：23

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