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Carbon Nanofibers Prepared by Spinning of Polymer Blends and Followed Carbonization of Blend Fibers

机译:通过纺丝聚合物共混物和随后的碳化共混纤维制备的碳纳米纤维

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摘要

Carbon nanofibers (CNFs) were prepared by spinning of polymer blends and then followed carbonization. The phenol-formaldehyde resin (PF) and Polypropylene acrynitril (PAN) were used as a carbon precusor polymer (CPP), them was mixed with the thermally decomposable polymer (TDP) polypropylene (PP) and polymethyl methacrylate (PMMA) respectively by melt blending ans solution blending, The PF/ PP and PAN/ PMMA blend fibers were obtaind after spinning of polymer blends. The oxidation and carbonization was applied to treal these blend fibers. The PP and PMMA was eliminated during the oxidation and carbonization, the remainned PF and PAN was in nanofiber form with a dimeter about 100-500nm. The diameter of CNFs could be adjusted by controling draw ratio during the fiber formation. The degree of graphite structure in CNFs was gradually perfected with increasing carbonization temperature. The electric conductivity of CNFs becomes higher with increasing carbonization temperature.
机译:碳纳米纤维(CNF)是通过纺丝聚合物共混物然后进行碳化来制备的。酚醛树脂(PF)和聚丙烯丙烯腈(PAN)用作碳前驱体聚合物(CPP),通过熔融共混分别将它们与热分解性聚合物(TDP)聚丙烯(PP)和聚甲基丙烯酸甲酯(PMMA)混合在溶液共混之后,在将聚合物共混物纺丝后获得了PF / PP和PAN / PMMA共混纤维。将氧化和碳化作用应用于这些掺合纤维的塔里。在氧化和碳化过程中消除了PP和PMMA,剩余的PF和PAN为纳米纤维形式,直径约为100-500nm。 CNF的直径可以通过在纤维形成过程中控制拉伸比来调节。随着碳化温度的升高,CNFs中的石墨结构程度逐渐完善。 CNF的电导率随着碳化温度的升高而变高。

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  • 来源
  • 会议地点 Shanghai(CN);Shanghai(CN)
  • 作者单位

    LI Guang@State key laboratory for modification of chemical fibers and polymer materials Donghua University, Shanghai 201620, China--PAN Wei@Zhongyuan Institute of Technology, Zhengzhou 450007, China--CHEN huifang@State key laboratory for modification of chemical fibers and polymer materials Donghua University, Shanghai 201620, China--JIN Junhong@State key laboratory for modification of chemical fibers and polymer materials Donghua University, Shanghai 201620, China--YANG Shenglin@State key laboratory for modification of chemical fibers and polymer materials Donghua University, Shanghai 201620, China--JIANG Jianming@State key laboratory for modification of chemical fibers and polymer materials Donghua University, Shanghai 201620, China--;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物产品;
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