摘要
本文将分散相粒子纳米球形SiO2在一定分散条件下均匀分散在介质PEG200和PEG400中,制备剪切增稠液(STF),然后通过浸轧的方式将STF与二维超高分子量聚乙烯(UHMWPE)织物相结合制备STF/UHMWPE复合材料。为探究STF/UHMWPE复合材料的抗冲击性能,以UD布为基材制靶样,分别为纯UD布靶样,UD布二维织物靶样和UD布STF/UHMWPE复合材料靶样,为减小实验误差,每种靶样设计三个相同组份的样品。利用高速冲击试验测试三组不同靶样的抗高速冲击性能,通过比较高速冲击后靶样的凹陷深度和最大凹陷直径,得到STF/UHMWPE复合材料的抗冲击性能。结果表明,UD布STF复合二维UHMWPE织物靶样比纯UD布靶样凹陷最大直径减小37.68%,凹陷深度减小10.13%,UD布STF/UHMWPE复合材料靶样抗高速冲击性能最好;STF在高速冲击试验过程中可以有效地吸收冲击能量。
Silica nanopowder was added into PEG200 and PEG400to prepare shear thickening fluid.Then,STF/UHMWPE composite materials were prepared by the combination of STF and 2D UHMWPE fabrics under a pressure condition.To test the high-speed impact property of the STF/UHMWPE composite materials,the base material,UD fabric,was used to prepare three kinds of targets:UD fabric targets,2D fabric with UD fabric targets and STF/UHMWPE composite materials with UD fabric targets.Moreover,to reduce errors,three samples were made for each of these different component targets.Damage depth and maximum damage diameter were measured and compared to investigate high-speed impact property of the STF/UHMWPE composite materials.The results show that STF/UHMWPE composite materials with UD fabric targets represent 10.13% decreasing in the damage depth and 37.68% decreasing in the maximum damage diameter and perform an optimized property of high-speed impact.The impact energy can be absorbed by the STF effectively in the process of high-speed impact tests.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2015年第6期895-898,共4页
Journal of Materials Science and Engineering
基金
国家自然科学基金青年基金资助项目(51203062
51302110)
产学研联合创新资金-前瞻性联合研究资助项目(BY2012064
BY2013015-31
BY2013015-32)
