剪切增稠液体在防刺材料中的应用研究  

The application of shear thickening fluids on stab-resistant body armor

作　　者：蒋玲玲[1] 钱坤[1] 俞科静[1] 骆冬冬[1] 李鸿顺[1] 曹海建[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,无锡214122

出　　处：《化工新型材料》2011年第6期121-124,共4页New Chemical Materials

基　　金：生态纺织教育部重点实验室(江南大学)开放课题资助(KLET0910);江南大学青年基金项目(2009LQN02);江南大学引进人才项目

摘　　要：制备出质量分数为22%的剪切增稠液体(STF)并对其稳态和动态流变性能进行研究,发现体系具有明显的剪切增稠现象,用"粒子簇"生成机理能较好地解释这种现象。用STF处理不同经纬密的芳纶,制备出STF-复合织物,并对其和纯芳纶织物进行准静态防刺试验。结果表明,剪切增稠液体的使用能够有效地增强芳纶织物的防刺性能,但经纬密小的提高的更多,在相同的面密度下,顶破强力分别提高了7.66%和170.84%。Shear thickening fluid（STF） with 22% mass fraction of nano-silica was prepared and its rheological behaviors were studied under steady and oscillation shear.It was observed that the system showed obvious shear-thickening phenomenon.Through ＂clustering＂ theory,the behavior can be explained.By impregnating STF into the aramid fiber with different yarn counter,we prepared STF-composite fabrics.Then STF-composite fabrics and neat fabrics were both done quasi-static stab-resistant tests.By contrast,showing that the use of STF can improve the performance of the aramid fabric stab-resistant.However,the lower yarn counter aramid fabric was enhanced more than the higher one and the penetration strength were respectively enhanced by 7.66% and 170.84% with the same areal density.

关 键 词：剪切增稠液体 流变性 STF-芳纶织物 防刺性能 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]