芳纶织物层合板加工工艺对纱线粘结力的研究  

Study on Yarn Bond Strength of Aramid Fabric Laminate Processing Technology

作　　者：王子虎 杨艳菲[1] 黄泳桦 潘梦瑶 金雨薇 WANG Zihu;YANG Yanfei;HUANG Yonghua;PAN Mengyao;JIN Yuwei(School of Textiles,Zhongyuan University of Technology,Zhengzhou 450007)

机构地区：[1]中原工学院纺织学院,郑州450007

出　　处：《纤维复合材料》2022年第3期10-16,共7页Fiber Composites

基　　金：国家青年自科基金项目(No.11702337);河南省青年骨干教师项目(No.2019GGJS139);中原工学院科研团队发展项目(K2019TD002)的资助。

摘　　要：芳纶织物硬质靶板以其优异的力学性能广泛应用于防弹领域。为明确涂胶工艺对织物力学性能的影响,本研究重点分析了树脂含量、固化温度、靶板层数和抽拔速率对织物结构以及纱线间粘结力的影响。根据织物截面切片观测,分析了树脂在织物内纱线的渗透情况以及与纱线的界面结合情况;通过纱线抽拔测试,分析了涂胶工艺过程对织物内纱线间的粘结力的影响。测试结果表明,织物经涂胶整理后,树脂由织物涂胶面部分渗入,增加了纱线间的结合力,纱线间的粘结力随着树脂含量的增加而增大;涂胶织物经固化整理后树脂渗透作用增强,当树脂含量足够高时,纱线截面粘结成透镜形实心体。当树脂含量一定时,纱线间的粘结力随着固化温度呈现的先升高再下降的趋势,在130℃时纱线间的粘结力最大;靶板层数对纱线粘结力有着显著的影响,抽拔双层纱线所克服的纱线间粘结力远远大于抽拔单层纱线间所克服的纱线间粘结力;抽拔速率同样影响纱线粘结力,抽拔速率越快,则所需抽拔力越大。以上结论反映了织物内纱线自由度的变化,为提升防弹靶板吸能提供了理论基础。Aramid fabric panel is widely used in bulletproof field because of its excellent mechanical properties.In order to clarify the effect of gluing process on the mechanical properties of the fabric,the effects of resin content and curing temperature on the fabric structure and the binding force between yarns were analyzed.According to the observation of fabric section,the penetration of resin into yarn and the interfacial bonding between resin and yarn were analyzed.The influence of coating process on the binding force between yarns in fabric was analyzed by yarn pull-out test.The test results show that:After the fabric is coated with glue,the resin penetrates into the fabric from the glue surface to increase the binding force between yarns.The binding force between yarns increases with the increase of resin content;The resin permeability of coated fabric is enhanced after curing and finishing.When the resin content is high enough,the yarn section is bonded to a lens-shaped solid body.When the resin content is constant,the binding force between yarns first increases and then decreases with the curing temperature,and the bond between yarns reaches the maximum at 130℃;The number of target plate layers has a significant effect on the yarn bond force.The inter-yarn bond force overcome by drawing double yarns is much greater than that overcome by drawing single yarns;The drawing rate also affects the yarn bond force.The faster the drawing rate is,the greater the required drawing force is.These conclusions reflect the variation of yarn freedom in the fabric and provide a theoretical basis for improving energy absorption of aramid panel.

关 键 词：芳纶靶板 粘结力 树脂整理 固化温度 抽拔测试 

分 类 号：TB332[一般工业技术—材料科学与工程]