| Kevlar纤维布/剪切增稠液复合材料制备及防刺性能 |
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| 引用本文： | 熊芳,周大利,顾建文,华坚,杨为中,张琴,林朝阳.Kevlar纤维布/剪切增稠液复合材料制备及防刺性能[J].四川兵工学报,2013(4):130-133,148. |
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| 作者姓名： | 熊芳 周大利 顾建文 华坚 杨为中 张琴 林朝阳 |
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| 作者单位： | [1]四川大学a．材料科学与工程学院；b．轻纺与食品学院,成都610064 [2]成都军区总医院,成都610068 |
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| 摘 要： | 采用纳米SiO2和聚乙二醇(PEG200)制备不同SiO2质量浓度的剪切增稠液体(Shear Thickening Fluid,STF),并检测其流变性能;用落锤式冲击实验装置检测纯Kevlar纤维布和经STF浸渍的STF-Kevlar复合纤维布防刺性能。研究结果表明:不同SiO2质量浓度的STF均有剪切增稠现象,随着SiO2质量浓度升高,起始粘度增大,增稠现象越显著,而临界剪切速率基本不变;同层数的STF-Kevlar复合纤维布的防刺性能明显优于纯Kevlar纤维布,防刺性能随SiO2质量浓度的增加而提高。
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| 关 键 词： | 纳米SiO2 剪切增稠 Kevlar纤维布 防刺性能 |
Preparation and Stab-resistance Study of Kevlar Fabrics/Shear Thickening Fluid Composite |
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| Authors: | XIONG Fang ZHOU Dali GU Jian wen HUA Jianlb YANG Wei zhong ZHANG Qin LIN Zhao yang |
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| Affiliation: | 1. a. College of Materials Science and Engineering; b. College of Light Industry, Textile and Food, Sichuan University, Chengdu 610064, China; 2. Chengdu Military General Hospital, Chengdu 610068, China) |
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| Abstract: | The shear thickening fluid （STF） of different SiO2 mass concentration was prepared with nanometer SiO2 and Polyethylene glycol （PEG200） , and rheological property was characterized. Neat Kevlar fabrics and STF-Kevlar composite fabrics impregnated with STF were studied by a drop-hammer tester. The results showed that STF of different SiO2 mass concentration all show a shear thickening behavior, initial viscosity increases and more obviously shear thickening emerges, yet critical shear rate keep unchanged basically with increasing SiO2 mass concentration. Stab resistance of STF-Kevlar composite fabrics is better than neat Kevlar fabrics obviously, and with increasing SiO2 mass concentration, stab resistance improves evidently. |
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| Keywords: | nanometer SiO2 shear thickening Kevlar fabrics stab resistance |
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