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首页> 外文期刊>Journal of Applied Polymer Science >Synergistic toughening and electrical functionalization of an epoxy usingMWCNTsand silane- /plasma-activated basalt fibers
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Synergistic toughening and electrical functionalization of an epoxy usingMWCNTsand silane- /plasma-activated basalt fibers

机译：使用MWCNTSAND硅烷 - 硅烷激活玄武岩纤维的环氧树脂的协同增韧和电官能化

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摘要

This work studied the effects of adding short basalt fibers (BFs) and multi-walled carbon nanotubes (MWCNTs), both separately and in combination, on the mechanical properties, fracture toughness, and electrical conductivity of an epoxy polymer. The surfaces of the short BFs were either treated using a silane coupling agent or further functionalized by atmospheric plasma to enhance the adhesion between the BFs and the epoxy. The results of a single fiber fragmentation test demonstrated a significantly improved BF/epoxy adhesion upon applying the plasma treatment to the BFs. This resulted in better mechanical properties and fracture toughness of the composites containing the plasma-activated BFs. The improved BF/epoxy adhesion also affected the hybrid toughening performance of the BFs and MWCNTs. In particular, synergistic toughening effects were observed when the plasma-activated BFs/MWCNTs hybrid modifiers were used, while only additive toughening effects occurred for the silane-sized BFs/MWCNTs hybrid modifiers. This work demonstrated a potential to develop strong, tough, and electrically conductive epoxy composites by adding hybrid BF/MWCNT modifiers.
机译：本工作研究了添加短玄武岩纤维（BFs）和多壁碳纳米管（MWCNT）对环氧树脂聚合物的机械性能、断裂韧性和导电性的影响。短BFs的表面要么使用硅烷偶联剂处理，要么通过大气等离子体进一步功能化，以增强BFs和环氧树脂之间的粘附力。单纤维断裂试验的结果表明，对BFs进行等离子体处理后，BF/环氧树脂的附着力显著提高。这使得含有等离子体活化BFs的复合材料具有更好的力学性能和断裂韧性。BF/环氧树脂结合力的提高也影响了BFs和MWCNT的混合增韧性能。特别是，当使用等离子体活化的BFs/MWCNTs杂化改性剂时，观察到协同增韧效应，而对于硅烷大小的BFs/MWCNTs杂化改性剂，仅出现添加增韧效应。这项工作表明，通过添加混合BF/MWCNT改性剂，可以开发出强度高、韧性好、导电性好的环氧复合材料。

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