氧化石墨烯的制备及复合材料的性能研究
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摘要
采用改进的Hummers法制备氧化石墨烯(GO),利用SEM、TEM、AFM观察GO表面形貌,XRD、Raman、FT-IR表征GO分子结构,通过MH-3型显微硬度仪测试GO/UHMWPE复合材料的显微硬度。结果表明:制备的GO为二维片状结构,厚度约1.1nm;GO的衍射峰为10.8°;G峰和D峰分别出现在1 590cm-1和1 350cm-1附近;GO含有氧官能团;随着GO含量的增加,GO/UHMWPE复合材料的显微硬度也随之增加。
Graphene oxide(GO)was prepared via Hummers methods.Surface topography of GO was studied by SEM,TEM and AFM.The molecular structure of GO was charactered by XRD,Raman,FT-IR.HM-3 micro-hardness tester was used to measure micro-hardness of GO/UHMWPE composites.The results indicated that GO was a two-dimensional sheet with the thickness about 1.1nm.In the XRD pattern,the strong and sharp peak appeared at 10.8°.The Raman spectrum show that G band and D band were observed at 1 590cm-1 and 1 350cm-1.GO contained the numbered of oxide-containing functional groups.With the increase of GO content,micro-hardness of the GO/UHMWPE composites increased.
Graphene oxide(GO)was prepared via Hummers methods.Surface topography of GO was studied by SEM,TEM and AFM.The molecular structure of GO was charactered by XRD,Raman,FT-IR.HM-3 micro-hardness tester was used to measure micro-hardness of GO/UHMWPE composites.The results indicated that GO was a two-dimensional sheet with the thickness about 1.1nm.In the XRD pattern,the strong and sharp peak appeared at 10.8°.The Raman spectrum show that G band and D band were observed at 1 590cm-1 and 1 350cm-1.GO contained the numbered of oxide-containing functional groups.With the increase of GO content,micro-hardness of the GO/UHMWPE composites increased.
引文
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[4]韩亚刚,赵国樑.UHMWPE/CNTs复合体系及其纤维的研究进展[J].合成纤维工业,2013,36(1):54-57.
[5]Brodie B C.On the Atomic Weight of Graphite[J].Philos Trans R Soc London,1859,149:249-259.
[6]Staudenmaier L.Verfahren zur Darstellung der Graphitsure[J].Ber Dtsch Chem Ges,1898,31(2):1481-1487.
[7]Hummers W S,Offeman R E.Preparation of Graphitic Oxide[J].J Am Chem Soc,1958,80:1339.
[8]Hirata M,Gotou T,Horiuchi S,et al.Thin-film Particles of Graphite Oxide 1:High-yield Synthesis and Flexibility of the Particles[J].Carbon,2004,42(14):2929-2937.
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[10]Huang X,Qi X Y,Boey F,et al.Graphene-based Composites[J].Chem Soc Rev,2012,41(2):666-686.
[11]Stankovich S,Piner R D,Nguyen S T,et al.Synthesis and Exfoliation of Isocyanate-treated Graphene Oxide Nanoplatelets[J].Carbon,2006,44(15):3342-3347.
[12]Xu Y X,Sheng K X,Li C,et al.Highly Conductive Chemically Converted Graphene Prepared from Mildly Oxidized Graphene Oxide[J].J Mater Chem,2011,21(20):7376-7380.
[13]Zhu Y,Murali S,Cai W,et al.Graphene and Graphene Oxide:Synthesis,Properties,and Applications[J].Adv Mater,2010,22(46):3906-3924.
[14]Han Y,Wu Y,Shen M,et al.Preparation and Properties of Polystyrene Nanocomposites with Graphite Oxide and Graphene as Flame Retardants[J].J Mater Sci,2013,48(12):4214-4222.