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通过聚氨酯发泡膨胀法制备了石墨烯,采用化学镀工艺方法在其片层表面进行纳米铜粒子的可控修饰,基于铜原子的d空轨道与苯胺分子中氮原子的孤电子对之间的配位关系,将对苯二胺分子自组装在石墨烯表面。采用透射电子显微镜、红外光谱、拉曼光谱和X射线光电子能谱研究了纳米铜粒子/胺/石墨烯的表面形貌和表面性能。结果表明,纳米铜粒子均匀地沉积在石墨烯片层表面,对苯二胺分子与石墨烯表面金属铜实现了自组装,对苯二胺/纳米铜/石墨烯能够均匀地分散在环氧树脂体系中。
Graphene was prepared by polyurethane foam expansion method. The surface of nanostructured copper particles was controlled by electroless plating. The d-orbital of copper atom and the lone pair of nitrogen atoms in the aniline molecule Coordination, the self-assembly of phenylenediamine molecules in the graphene surface. The surface morphology and surface properties of nano-copper particles / amine / graphene were investigated by transmission electron microscopy, infrared spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. The results show that nano-copper particles are uniformly deposited on the surface of graphene sheets, self-assembly of phenylenediamine molecules and metallic copper on graphene surfaces is achieved, and p-phenylenediamine / nano-copper / graphene can be uniformly dispersed in epoxy resin System.