以N,N-二甲基甲酰胺(DMF)为溶剂,采用静电纺丝法制备了聚乙酸乙烯酯(PVAc)纤维.用场发射扫描电镜观察了PVAc纤维的形貌,研究了PVAc溶液质量分数、纺丝电压、收集距离等对纤维形貌及平均直径的影响.研究结果表明,PVAc溶液质量分数和纺丝电压对纤维的形貌有显著影响,随着PVAc溶液质量分数和纺丝电压的增大,纤维的平均直径增大;收集距离对纤维形貌的影响较小.尝试采用静电纺丝法制备了炭黑和PVAc的复合纤维,以增强纤维的导电性,成为导电碳纤维,但炭黑会显著降低PVAc的成纤性,因为它会吸附溶剂DMF,使溶剂在电纺过程中不易挥发,射流不能固化成纤维.
参考文献
| [1] | Hou H Q;Reneker D H .Carbon nanotubes on carbon nanofibers:A novel structure based on electrospun polymer nanofibers[J].Advanced Materials,2004,16:69. |
| [2] | Kim C et al.Characteristics of supercapaitor electrodes of PBI-based carbon nanofiber web prepared by electrospinning[J].Electrochimica Acta,2004,50:877. |
| [3] | Kim GM;Michler GH;Potschke P .Deformation processes of ultrahigh porous multiwalled carbon nanotubes/polycarbonate composite fibers prepared by electrospinning[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(18):7346-7351. |
| [4] | Kannan P;Eichhorn SJ;Young RJ .Deformation of isolated single-wall carbon nanotubes in electrospun polymer nanofibres[J].Nanotechnology,2007(23):35707-1-35707-7-0. |
| [5] | Theron A;Zussman E;Yarin A L .Electrostatic fiel-dassisted alignment of electrospun nanofibres[J].Nanotechnology,2001,12:384. |
| [6] | Wang G;Tan Z K;Liu X Q et al.Conducting MWNT/poly(vinyl acetate) composite nanofibres by electrospinning[J].Nanotechnology,2006,17:5829. |
| [7] | 吴之传,许茂东,辛后群,张宇东,王再峰,陶庭先.纳米Ag/PVAc复合材料的制备[J].合成化学,2006(01):56-58. |
| [8] | 张宇东,许茂东,邱万军,辛后群,吴之传.纳米铜/聚醋酸乙烯酯复合材料的制备与表征[J].涂料工业,2006(02):46-49. |
| [9] | Onozuka K;Ding B;Tsuge Y et al.Electrospinning processed nanofibrous TiO2 membranes for photovoltaic applications[J].Nanotechnology,2006,17:1026. |
| [10] | Song M Y et al.Electrospun TiO2 electrodes for dye-sensitized solar cells[J].NANOTECHNOLOGY,2004,15:1861. |
| [11] | Ding B;Kim H;Kim C et al.Morphology and crystalline phase study of electrospun TiO2-SiO2 nanofibres[J].Nanotechnology,2003,14:532. |
| [12] | 吴宁,魏取福,徐秋香,黄锋林.聚醋酸乙烯酯/二氧化钛杂化纳米纤维毡的形貌及力学性能[J].材料导报,2009(08):40-43. |
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