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Reversible surface modification of PAN-based carbon fibers by a ferrocene-based surfactant

ZHANG Xiao-fang YAO Ting-ting LIU Yu-ting WU Gang-ping

张晓芳, 姚婷婷, 刘玉婷, 吴刚平. 二茂铁表面活性剂在聚丙烯腈基炭纤维表面的可逆修饰. 新型炭材料(中英文), 2023, 38(5): 989-996. doi: 10.1016/S1872-5805(23)60728-0
引用本文: 张晓芳, 姚婷婷, 刘玉婷, 吴刚平. 二茂铁表面活性剂在聚丙烯腈基炭纤维表面的可逆修饰. 新型炭材料(中英文), 2023, 38(5): 989-996. doi: 10.1016/S1872-5805(23)60728-0
ZHANG Xiao-fang, YAO Ting-ting, LIU Yu-ting, WU Gang-ping. Reversible surface modification of PAN-based carbon fibers by a ferrocene-based surfactant. New Carbon Mater., 2023, 38(5): 989-996. doi: 10.1016/S1872-5805(23)60728-0
Citation: ZHANG Xiao-fang, YAO Ting-ting, LIU Yu-ting, WU Gang-ping. Reversible surface modification of PAN-based carbon fibers by a ferrocene-based surfactant. New Carbon Mater., 2023, 38(5): 989-996. doi: 10.1016/S1872-5805(23)60728-0

二茂铁表面活性剂在聚丙烯腈基炭纤维表面的可逆修饰

doi: 10.1016/S1872-5805(23)60728-0
基金项目: 山西省科技重大专项项目(20181101020);山西煤化所自主创新项目-基础研究项目(SCJC-HN-2022-15)
详细信息
    通讯作者:

    吴刚平,博士,研究员. E-mail:wgp@sxicc.ac.cn

  • 中图分类号: TB33

Reversible surface modification of PAN-based carbon fibers by a ferrocene-based surfactant

Funds: Major Science and Technology Projects of Shanxi Province (20181101020), Independent Innovation Fund Project of Shanxi Institute of Coal Chemistry-Basic Research Project Supported by ICC CAS (SCJC-HN-2022-15)
More Information
  • 摘要: 采用电化学可逆表面活性剂(二茂铁)十二烷基二甲基溴化铵(FDDA)对炭纤维进行表面改性。结果表明,FDDA能够在炭纤维表面进行吸附及电化学脱附,实现可逆的表面改性。同时证实了FDDA主要通过非静电相互作用在炭纤维表面以多分子层的方式进行吸附。此外,通过单丝拉伸断裂法探究了FDDA改性炭纤维对炭纤维/环氧树脂界面性能的影响。与未改性的炭纤维相比,FDDA改性的炭纤维与环氧树脂之间的界面黏结性能得到明显改善。
  • FIG. 2660.  FIG. 2660.

    FIG. 2660..  FIG. 2660.

    Figure  1.  Structure of FDDA

    Figure  2.  SEM images of CFs: (a) before adsorption, (b) after adsorption (0.8 mmol/L, lower than CMC), (c) after adsorption (1.6 mmol/L, higher than CMC), (d) after adsorption and electrochemical desorption

    Figure  3.  FDDA adsorption isotherm for CFs and the fitting curve with the Langmuir (solid line) and Freundlich (dotted line) models

    Figure  4.  The adsorbed amount of FDDA on CFs under different temperatures

    Figure  5.  (a) Effect of pH value on the adsorption of FDDA on the CFs and (b) Narrow spectrum of N1s region

    Figure  6.  The tensile strength Weibull distribution curves for (a) bare CFs, (b) FDDA-adsorbed CFs, (c) FDDA-adsorbed and then electrochemically desorbed CFs

    Figure  7.  The optical photos and corresponding contact angles of epoxy resin droplets on (a) the as-received CFs and (b) the FDDA-adsorbed CFs

    Figure  8.  The birefringence patterns of the unidirectional single-CF model composites after single-filament tensile fragmentation tests: (a) the as-received CFs and (b) the FDDA-adsorbed CFs

    Table  1.   The relative contents of surface elements on the CFs

    Element
    content/%
    CFs
    Before
    adsorption
    After
    adsorption
    After adsorption
    and desorption
    C87.0886.7880.85
    O9.738.1214.90
    N3.203.593.37
    Fe-1.500.88
    下载: 导出CSV

    Table  2.   Thermodynamics parameters for the adsorption of FDDA on the CFs

    T
    /(K)
    Kc
    /(L/kg)
    $\Delta {G}_{m}^{\theta } $
    /(kJ/mol)
    $\Delta {H}_{m}^{\theta } $
    /(kJ/mol)
    $\Delta {S}_{m}^{\theta } $
    /(J/(mol·K))
    293.558.21−9.91−3.6521.19
    303.553.09−10.02
    308.552.45−10.15
    313.552.45−10.32
    318.551.18−10.42
    323.549.91−10.51
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-11-06
  • 修回日期:  2020-07-06
  • 网络出版日期:  2023-03-13
  • 刊出日期:  2023-10-01

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