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首页> 外文期刊>Polymer Composites >In-plane response of para-aramid/phenolic nanostitched and nanoprepreg 3D composites under tensile loading
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In-plane response of para-aramid/phenolic nanostitched and nanoprepreg 3D composites under tensile loading

机译：在拉伸载荷下对芳族芳酰胺/酚类纳米蛋白纳米蛋白和纳米葡萄糖3D复合材料的面内响应

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摘要

The tensile properties of nanostitched and nanoprepreg three dimensional para-aramid/phenolic composites were studied. The tensile responses of para-aramid/phenolic composites showed three regions as initial interfiber friction, crimp exchange, and yarn extension regions. Their tensile moduli in each region were defined. It was obtained that stitching and multiwall carbon nanotubes slightly increased the tensile strength of all stitched and stitched/nano composites. Tensile failure on all stitched structure showed brittle matrix and multiple ductile filament breakages in yarn after angular deformation in composite surface layers as well as local restricted delamination. Failure mechanism of carbon stitched composite was interestingly different compared to para-aramid stitched composite in where carbon stitching yarn was failed in the loop section. It was pulled out thickness direction of the composite and caused large local opening between layers. POLYM. COMPOS., 40:1275-1286, 2019. (c) 2018 Society of Plastics Engineers
机译：研究了纳米型和纳米葡萄粉三维对氨基芳族芳酰胺/酚醛复合材料的拉伸性能。对芳族聚酰胺/酚醛复合材料的拉伸反应显示为初始紫外线摩擦，压接交换和纱线延伸区域的三个区域。定义了每个区域中的拉伸模态。获得的是，缝合和多壁碳纳米管略微增加了所有缝合和缝合/纳米复合材料的拉伸强度。所有缝合结构上的拉伸失效显示脆性基质和在复合表面层中角度变形的纱线中的脆性基质和多个延展细丝断线以及局部受限制的分层。与Para-aramid缝合复合材料相比，碳缝合复合材料的失效机理有趣地不同，其中碳缝合纱线在环部分中失效。它被拉出复合材料的厚度方向，并在层之间引起了大的局部开口。聚合物。 Compos。，40：1275-1286,2019。（c）2018年塑料工程师协会

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