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Main structural features of graphene materials controlling the transport properties of epoxy resin-based composites

机译:石墨烯材料的主要结构特征控制环氧树脂基复合材料的传输性能

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摘要

Graphene materials (GMs) are deeply studied as nanoreinforcements of polymer matrices, especially for epoxy matrices. Here, we analyze the effect of GMs on the transport properties of a poly(bisphenol A-co-epichlorohydrin) resin. In particular, we focus on the effect of the morphology, chemical composition and structure of different GMs obtained by varying the reduction temperature of the thermal/exfoliation treatment of graphite oxide synthesized by a modified Hummers method. The dispersion degree of the GMs was studied by microscopy techniques, showing a strong dependence on the specific surface area and chemical composition of the graphene material. The transport properties imposed different requirements on GMs. The thermal conductivity benefited from a high aromatic restoration. Meanwhile, the electrical conductivity required the right balance of filler/matrix interaction and aromatic restoration.
机译:将石墨烯材料(GMS)视为聚合物基质的纳米导管,特别是对于环氧基质。 这里,我们分析GMS对聚(双酚A-环氯醇盐)树脂的运输性质的影响。 特别地,我们专注于通过改变通过改性悍马方法合成的石墨氧化物的热/剥离处理的热/剥离处理的还原温度来实现不同GMS的形态,化学成分和结构的影响。 通过显微镜技术研究了GMS的分散度,显示出对石墨烯材料的比表面积和化学成分的强依赖性。 传输属性对GMS强加不同的要求。 导热率受益于高芳族修复。 同时,电导率需要填充/基质相互作用和芳族恢复的正确平衡。

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