由聚丙烯腈基碳纤维制备石墨烯薄膜的探索研究  

Preparation and research of graphene sheets from PAN based carbon fibers

作　　者：王延相[1] 刘玉兰[1] 王丽民[1] 季敏霞[1] 王成国[1] 

机构地区：[1]山东大学材料科学与工程学院碳纤维工程技术研究中心,山东济南250061

出　　处：《功能材料》2011年第3期520-523,共4页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)资助项目(2006CB605314);山东大学自主创新基金资助项目HFSDU(2009TS004)

摘　　要：为了拓展生产石墨烯薄膜的方法,对不具有皮芯结构的T700和T300聚丙烯腈基碳纤维进行了超薄切片,分别制备了超薄切片试样BM1和BM2,借助于高分辨、XRD、拉曼光谱等表征方法对石墨烯薄膜进行了表征和研究。结果发现超薄切片石墨烯薄膜BM1和BM2相比较,BM1中碳原子网络石墨烯平面部分平直,部分扭曲,网平面上碳原子之间的距离减小,石墨烯层排列较致密并沿牵伸方向择优取向,相邻石墨烯层连贯性较好。BM1中石墨烯的结构有序化程度最高,sp2杂化碳原子的相对含量高,验证了可以采用超薄切片的物理方法由高性能碳纤维制备结构规整的石墨烯薄膜的可行性。In order to expand the production of graphene thin films,the method of ultrathin section has been carried out for T700 and T300 carbon fibers without having the characteristic of skin-core structure respectively,moreover the ultrathin section samples have been prepared,the thin films of BM1 came from T700 and the thin films of BM2 came from T300 respectively.The thin films obtained with different carbon fibers were characterized by HRTEM,XRD,Raman spectroscopy.It has been investigated that the network-graphene planes composed with carbon atoms were partly straight and partly twisted in the BM1 thin films when compared between BM1 films and BM2 films,the distance between the carbon atoms of network-graphene plane decreases,the stratum order design of graphene in BM1 films was denser and the arrangement must show a preferred orientation along the drawing direction,their consistency of the neighboring graphene based planes is better,moreover,the highest degree of ordering in the BM1 thin films was shown,the relative content of the forming sp2 hybridized orbit of carbon atoms in BM1 films was higher.It was verified that the graphene based thin films with the well-defined structures could be prepared and produced from PAN base carbon fibers.

关 键 词：碳纤维 超薄切片 石墨烯薄膜 密度 

分 类 号：TQ342.31[化学工程—化纤工业]