工业用及服用PET纤维的模量-应变曲线及其分析

Modulus-Strain Curves of Industrial and Apparel PET Filaments

文章针对拉伸实验测试的高模低缩型PET工业丝和服用PET长丝的负荷-伸长曲线,进行计算转换得到纤维的模量-应变曲线。通过声速法和X射线衍射实验测试纤维的取向和结晶,结合纤维结构及纤维应用讨论了两种PET纤维的模量-应变曲线特点。

The Stress-Strain Curves of high modulus low shrinkage PET industrial yarns and PET apparel filaments were measured by tensile test. The corresponding modulus strain curves were ob- tained from the stress-strain curves of the fibers. The orientation and crystallinity of the PET fibers were measured by sonic and X-ray diffraction. The feature of modulus strain curves were discussed from the fiber structure and applications.