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首页> 外文期刊>Science of advanced materials >Robust Multifunctional Free Standing Polypyrrole Sheet for Electromagnetic Shielding
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Robust Multifunctional Free Standing Polypyrrole Sheet for Electromagnetic Shielding

机译:用于电磁屏蔽的坚固耐用的多功能独立式聚吡咯片

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摘要

A multifunctional free standing sheet of polypyrrole has been fabricated using a versatile in-situ chemical polymerization of pyrrole along with carbon fibers followed by thermal curing in the presence of phenolic-novolac resin for the electromagnetic shielding application. Different formulations have been designed in order to optimize the electrical, thermal and mechanical properties. The addition of carbon fibers endows to enhance the electromagnetic interference shielding effectiveness (23 dB) with absorption as the dominant shielding mechanism in the 12.4-18 GHz (Ku-Band) frequency range. This material has strength of 78.96 MPa with an electrical conductivity of 0.034 S/cm and outperforms many other sheet-like materials in stiffness and strength. Its combination of macroscopic flexibility and stiffness is a result of a unique interlocking arrangement of the polypyrrole-carbon fibers with phenolic resin. This work provides a promising methodology to fabricate lightweight polypyrrole-carbon fiber sheet with superior electrical and EMI shielding properties by simultaneously combining the functionality and reinforcement of the polypyrrole.
机译:使用吡咯与碳纤维的通用原位化学聚合反应,然后在酚醛酚醛树脂存在下进行热固化,以制备电磁屏蔽应用的多功能聚吡咯自支撑片。为了优化电,热和机械性能,已经设计了不同的配方。在12.4-18 GHz(Ku-Band)频率范围内,添加碳纤维可以增强电磁干扰的屏蔽效率(23 dB),吸收是主要的屏蔽机制。该材料的强度为78.96 MPa,电导率为0.034 S / cm,在硬度和强度方面优于许多其他片状材料。其宏观柔韧性和刚度的结合是聚吡咯碳纤维与酚醛树脂独特的互锁结构的结果。这项工作提供了一种有前途的方法,可以通过同时结合聚吡咯的功能性和增强性来制造具有优异的电和EMI屏蔽性能的轻质聚吡咯-碳纤维片。

著录项

  • 来源
    《Science of advanced materials》 |2013年第7期|881-890|共10页
  • 作者单位

    Polymeric and Soft Materials Section, National Physical Laboratory (CSIR), New Delhi 110012, India,Department of Chemistry, Delhi Institute of Tool Engineering, Okhla, New Delhi 110020, India,Amity Institute of Advanced Research and Studies, Materials and Devices, AIARS (M&D),Amity University, Noida, UP 201303, India;

    Department of Physics, M. D. University, Rohtak, Haryana 124001, India;

    Polymeric and Soft Materials Section, National Physical Laboratory (CSIR), New Delhi 110012, India,School of Chemical Engineering and Bioengineering, University of Ulsan, Daehakro,Ulsan, 680-749, Republic of Korea;

    Amity Institute of Advanced Research and Studies, Materials and Devices, AIARS (M&D),Amity University, Noida, UP 201303, India;

    Department of Chemistry, Delhi Institute of Tool Engineering, Okhla, New Delhi 110020, India;

    Polymeric and Soft Materials Section, National Physical Laboratory (CSIR), New Delhi 110012, India;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Conducting Polymer; EMI Shielding; Composites; Carbon Fibers; Emulsion Polymerization;

    机译:导电聚合物;EMI屏蔽复合材料;碳纤维;乳液聚合;

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