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Effect of hydrothermal modified carbon fiber through Diels-Alder reaction and its reinforced phenolic composites

机译：水液改性碳纤维通过Diels - Alder反应的影响及其增强酚醛复合材料

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摘要

In this work, carbon fibers were chemically modified with maleic anhydride through the Diels-Alder reaction under hydrothermal conditions, and then the modified carbon fiber reinforced phenolic resin composites were prepared by liquid impregnation processing. The structural and surface characteristics of carbon fibers were investigated by the Fourier transform infrared (FTIR) spectrum, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The tensile strength of the composites was measured by a universal material testing machine. The friction and wear behaviors of the composites were evaluated by a friction tester. Experimental results revealed that the carboxyl group was successfully grafted on the carbon fiber surface leading to the increase of surface activity without damaging the skin region and core region of the carbon fibers. The tensile strength of modified carbon fibers reinforced composites increased significantly by about 200%, while the wear volume decreased by about 50% compared with unmodified carbon fiber reinforced composites, resulting from good adhesion between the carbon fibers and resin matrix.
机译：在这项工作中，通过在水热条件下通过导液酸酐进行碳纤维在水性酸酐中进行化学修饰，然后通过液体浸渍加工制备改性的碳纤维增强酚醛树脂复合材料。通过傅里叶变换红外（FTIR）光谱，拉曼光谱和X射线光电子谱（XPS）研究了碳纤维的结构和表面特性。通过通用材料试验机测量复合材料的拉伸强度。复合材料的摩擦和磨损行为由摩擦测试仪评估。实验结果表明，羧基成功接枝在碳纤维表面上，导致表面活性的增加，而不会损坏碳纤维的皮肤区域和核心区域。改性碳纤维增强复合材料的拉伸强度明显增加约200％，而磨损体积与未改性的碳纤维增强复合材料相比减少约50％，碳纤维与树脂基质之间的良好粘附性。

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  • 来源
    《RSC Advances》 |2015年第79期|共6页
  • 作者

    Fei Jie; Luo Wei; Huang JianFeng; Ouyang HaiBo; Wang HongKun; Cao LiYun;

  • 作者单位

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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