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Specific Functionalization of Carbon Nanotubes for Advanced Polymer Nanocomposites

机译：碳纳米管用于高级聚合物纳米复合材料的特定功能化

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摘要

A novel approach to chemically functionalize multiwalled carbon nanotubes (MWCNTs) for making advanced polymeric nanocomposites with liquid crystalline polymers (LCPs) is presented. In this approach, two types of chemical moieties (i.e., carboxylic and hydroxyl benzoic acid groups) are selectively introduced onto the sidewalls of the MWCNTs. Fourier transform IR and Raman spectroscopy are used to examine the interaction between the functionalized MWCNTs and the LCP. The strong interaction between the functionalized MWCNTs and the LCP greatly improved the dispersion of MWCNTs in the polymer matrix as well as the interfacial adhesion. The dispersion of the MWCNTs in the LCP matrix is observed by optical microscopy and field-emission scanning electron microscopy. As a result, the addition of 1 wt% MWCNTs in the LCP resulted in the significant improvement (41 and 55%) in the tensile strength and modulus of the LCP.
机译：提出了一种化学功能化多壁碳纳米管（MWCNT）的新颖方法，该方法可与液晶聚合物（LCP）制备高级聚合物纳米复合材料。在这种方法中，将两种类型的化学部分（即，羧基和羟基苯甲酸基团）选择性地引入到MWCNT的侧壁上。傅里叶变换红外和拉曼光谱用于检查功能化的碳纳米管和LCP之间的相互作用。功能化的MWCNT与LCP之间的强相互作用极大地改善了MWCNT在聚合物基质中的分散性以及界面粘附性。通过光学显微镜和场发射扫描电子显微镜观察MWCNT在LCP基质中的分散。结果，在LCP中添加1 wt％的MWCNT导致了LCP的拉伸强度和模量显着提高（分别为41％和55％）。

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  • 来源
    《Advanced Functional Materials》 |2009年第24期|3962-3971|共10页
  • 作者

    Nanda Gopal Sahoo; Henry Kuo Feng Cheng; Lin Li; Siew Hwa Chan; Zaher Judeh; Jianhong Zhao;

  • 作者单位

    School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    School of Chemical and Biomedical Engineering Nanyang Technological University 62 Nanyang Drive, Singapore 637459 (Singapore);

    Singapore institute of Manufacturing Technology 71 Nanyang Drive, Singapore 638075 (Singapore);

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