【摘要】 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。更多还原

【Abstract】 The graphene was prepared by the method of polyurethane foam expansion. The copper nano-particles were chemically plated on the graphene surface and the processing parameters of the chemical plating copper were optimized. On the bases of coordination relationship between dempty orbit of copper atom and the lone electron pair of nitrogen atom in p-phenylenediamine molecule, the p-phenylenediamine molecules were self-assembled onto the nano-copper/graphene surface. The surface properties and morphology was studied with transmission electron microscopy(TEM), Raman spectroscopy(Raman), infrared spectroscopy(FTIR) and the X-ray photoelectron spectroscopy(XPS). It was indicated that the copper nanoparticles had been uniformly deposited on the graphene surface; the para-phenylene diamine molecules and nano-copper/graphene were self-as-sembled. The para-phenylene diamine/nano copper/graphene could be evenly dispersed in epoxy resin matrix.更多还原