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Influence of unique structure of glassy carbon on morphology and properties of its epoxy-based binary composites and hybrid composites with carbon nanotubes

机译：玻碳的独特结构对其环氧基二元复合材料和碳纳米管杂化复合材料形态和性能的影响

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The study of interfacial interactions between polymer matrix and particulate fillers is essential for producing composites with enhanced properties. In this work, the influence of the unique glassy carbon (GC) structure on the properties of its binary epoxy composites as well as hybrid nanocomposites with GC and multi-walled carbon nanotubes (MWCNTs) was investigated. The purpose of incorporating MWCNTs into the epoxy matrix (EP) as an addition filler was to obtain nanocomposites with improved properties. The influence of GC particles alone or in combination with MWCNTs on morphological, thermomechanical, and electrical properties of composites was studied in detail. There were found good, homogeneous dispersion of GC and MWCNTs in epoxy matrix as well as strong interfacial interactions between the carbon fillers and epoxy. Mechanical measurements demonstrated that both the tensile and bending properties of the composites, especially the hybrid composites, were greatly improved compared with those of pure epoxy due to the uniform dispersion of fillers in epoxy and significant adhesion between the filler and matrix. The electrical resistivity of hybrid composites, which is directly related to the presence of MWCNTs in addition to the GC, decreased sharply by 9-11 orders of magnitude compared to the insulating matrix. Such composites with enhanced mechanical and electrical properties could be applied in various branches of industry. (C) 2016 Elsevier Ltd. All rights reserved.
机译：对聚合物基体和颗粒状填料之间的界面相互作用的研究对于生产具有增强性能的复合材料至关重要。在这项工作中，研究了独特的玻璃碳（GC）结构对其二元环氧复合材料以及具有GC和多壁碳纳米管（MWCNT）的杂化纳米复合材料性能的影响。将MWCNT作为添加填料掺入环氧基质（EP）的目的是获得具有改进性能的纳米复合材料。详细研究了单独或与多壁碳纳米管结合使用的GC颗粒对复合材料的形态，热机械和电性能的影响。发现GC和MWCNT在环氧基质中良好且均匀的分散，以及碳填料和环氧之间的强界面相互作用。机械测量表明，由于填料在环氧树脂中的均匀分散以及填料与基体之间的显着粘合性，与纯环氧树脂相比，复合材料（尤其是杂化复合材料）的拉伸和弯曲性能均得到了极大的改善。与GC外，还与MWCNT的存在直接相关的杂化复合材料的电阻率与绝缘基体相比急剧降低了9-11个数量级。这种具有增强的机械和电性能的复合材料可应用于各种工业领域。 （C）2016 Elsevier Ltd.保留所有权利。

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