High performance fibers impregnated by shear thickening fluids (STFs) have been recognized as a kind
of latent stab-resistant materials. In our work, the rheological properties of various nano-silica particles in different
carriers were first investigated, some of which showed the typical characteristic of shear thickening phenomena.
And then, the effects of add-on and surface hydrophilicity of silica particles, the type and concentration of the
carriers were discussed in detail. It was found that the systems of hydrophilic silica in ethylene glycol, butylenes
glycol and polyethylene glycol (PEG) demonstrated shear thickening; moreover, the reversibility of rheological
behaviors of hydrophilic silica-PEG300 suspensions indicated energy dissipation existed within a circulation of
shear stress. Furthermore, the detail mechanism of STF based nano-silica particles was explored and a process
diagram was presented. Finally, the stab-resistance and morphology of cutting edge of ultra high molecular weight
polyethylene (UHMWPE) fabric impregnated STF composites were investigated and the results were analyzed.
The higher silica add-on was benefit to the improvement of the stab resistance of the composites.
GU Juan1 (顾 隽), HUANG Xian-cong2 (黄献聪), LI Yan2 (李焱), WANG Xin-ling1 (王新灵)，SHI Mei-wu2 (施楣梧), ZHENG Zhen1* (郑 震)
. Improving the Stab-Resistance Performance of Ultra High Molecular Weight Polyethylene Fabric Intercalated with Nano-Silica-Fluid[J]. Journal of Shanghai Jiaotong University(Science), 2014
, 19(1)
: 102
-109
.
DOI: 10.1007/s12204-013-1467-1
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