囊体材料主要缺陷及其对材料性能影响研究

Study on Main Defects of Envelope Material and its Effect on Material Performance

为了更好地判断囊体材料不同外观缺陷对性能的影响,收集整理了囊体材料不同种类的缺陷,对比测试了不同种类缺陷部位和正常部位囊体材料的拉伸强度和氦气渗透率。分析结果表明:折痕、磨损痕、接头、跳纱、污点、起球、并丝等缺陷对囊体材料拉伸强度影响较小;经斜、纬斜、断纱、褶皱、稀密路等缺陷对囊体材料拉伸强度影响较大;织物缺陷对囊体材料氦气渗透率基本没有影响。

In order to better judge the influence of different appearance defects of envelope materials,different kinds of defects were collected and sorted out.The tensile strength and helium permeability of different kinds of defective parts and normal parts of envelope materials were tested and compared.The analysis result showed that crease,wear marks,joints,float,stains,pilling and doubling defects had little effect on the tensile strength of envelope materials.Bias warp,bias weft,broken yarn,wrinkle and motion mark had great effect on the tensile strength of envelope materials.Fabric defects had little effect on the helium permeability of envelope materials.