宋晨,陈友汜,王雪飞,欧阳琴
SONG Chen,CHEN You-si,WANG Xue-fei,OUYANG Qin

• 1:中国科学院宁波材料技术与工程研究所碳纤维制备技术国家工程实验室

摘要(Abstract)：

采用原位聚合法制备了聚丙烯腈(PAN)-氧化石墨烯(GO)纳米复合物,并采用静电纺丝法制备了PAN及PAN-GO纳米复合物的电纺纤维。采用扫描电镜、傅里叶变换红外光谱、X射线衍射等研究了电纺纤维在恒温热稳定化过程中表面形貌、微晶结构、化学结构的变化,结果表明:恒温热处理后,纤维表面均较为光滑,GO的引入不仅能够加快热稳定化过程中环化反应的速度,而且能显著提高环化程度。
Polyacrylonitrile(PAN)-graphene oxide(GO) nanocomposites were prepared by in-situ polymer-ization, PAN and PAN-GO fibers were then fabricated by electrospinning. Morphology and structure of thefibers stabilized at constant temperature were characterized by scanning electron microscopy, Fourier trans-form infrared spectroscopy and X-ray diffraction. The smooth surface was observed in stabilized fibers. Thecyclization reaction of fiber was accelerated with the introduction of GO during stabilization, and meanwhilea considerable increase of the degree of cyclization was obtained in result fibers.

关键词(KeyWords)： 聚丙烯腈;静电纺丝;氧化石墨烯;热稳定化
polyacrylonitrile,electrospinning,graphene oxide,thermal stabilization

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划(2011CB605602);; 宁波市自然科学基金(2012A610104和2012A610093)资助

作者(Author): 宋晨,陈友汜,王雪飞,欧阳琴
SONG Chen,CHEN You-si,WANG Xue-fei,OUYANG Qin

DOI: 10.16090/j.cnki.hcxw.2014.04.008

参考文献(References)：

• [1]Li D,Xia Y.Electrospinning of nanofibers:Reinventing the wheel?[J].Advanced Materials,2004,16(14):1 151-1 170.
• [2]Huang Z M,Zhang Y Z,Kotaki M,et al.A review on polymer nanofi bers by electrospinning and their applications in nanocomposites[J].Composites Science and Technology,2003,63:2 223-2 253.
• [3]龚园园,王新灵,郑霞,等.静电纺丝法制备含四重氢键的聚氨酯纳米纤维[J].合成纤维,2012,41(2):29-34.
• [4]赵玉明,曹鼎,石艳,等.加盐提高聚乙烯醇纳米纤维膜的力学和热稳定性能[J].合成纤维,2013,42(8):12-16.
• [5]Kim C,Yang K S.Electrochemical properties of carbon nanofiber web as an electrode for supercapacitor prepared by electrospinning[J].Applied Physics Letters,2003,83(6):1 216-1 218.
• [6]Li S F,Chen J P,Wu W T.Electrospun polyacrylonitrile nanofibrous membranes for lipase immobilization[J].Journal of Molecular Catalysis B:Enzymatic,2007,47:117-124.
• [7]Maitra T,Sharma S,Srivastava A,et al.Improved graphitization and electrical conductivity of suspended carbon nanofibers derived from carbon nanotube/polyacrylonitrile composites by directed electrospinning[J].Carbon,2012,50(5):1 753-1 761.
• [8]Saeed K,Park S Y.Preparation and characterization of multiwalled carbon nanotubes/polyacrylonitrile nanofibers[J].Journal of Polymer Research,2010,17(4):535-540.
• [9]Geim A K,Novoselov K S.The rise of graphene[J].Nature Materials,2007,6(3):183-191.
• [10]Geim A K,MacDonald A H.Graphene:Exploring carbon flatland[J].Physics Today,2007,60(8):35-41.
• [11]孔庆强,杨芒果,陈成猛,等.石墨烯改性聚丙烯腈基纳米炭纤维的制备及其性能[J].新型碳材料,2012,27(3):188-193.
• [12]Paredes J I,Villar-Rodil S,Martinez-Alonso A,et al.Graphene oxide dispersionsinorganic solvents[J].Langmuir,2008,24(19):10 560-10 564.
• [13]Ramanathan T,Abdala A A,Stankovich S,et al.Functionalized graphene sheets for polymer nanocomposites[J].Nature,2008,3:327-331.
• [14]Wu F,Lu Y,Shao G,et al.Preparation of polyacrylonitrile/graphene oxide by in situ polymerization[J].Polymer International,2012,61(9):1 394-1 399.
• [15]Szabo T,Berkesi O,Forgo P,et al.Evolution of surface functional groups in a series of progressively oxidized graphite oxides[J].Chemistry of Materials,2006,18(11):2 740-2 749.
• [16]Zhang H,Xu L,Yang F,et al.The synthesis of polyacrylonitrile/carbon nanotube microspheres by aqueous deposition polymerization under ultrasonication[J].Carbon,2010,48(3):688-695.
• [17]Park S,An J,Potts J R,et al.Hydrazine-reduction of graphite-andgraphene oxide[J].Carbon,2011,49(9):3 019-3 023.
• [18]Ji M,Wang C,Bai Y,et al.Structural evolution of polyacrylonitrile precursor fibers during preoxidation and carbonization[J].Polymer Bulletin,2007,59(4):527-536.
• [19]Dalton S,Heatley F,Budd P M.Thermal stabilization of polyacrylonitrile fibres[J].Polymer,1999,40(20):5 531-5 543.
• [20]Gupta A K,Singhal R P.Effect of co-polymerization and heat-treatment on the structure and X-ray-diffraction of polyacrylonitrile[J].Journal of Polymer Science.Part B-Polymer Physics,1983,21(11):2 243-2 262.