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267 / 2022-03-14 23:04:54
Study on Thermal Stability and Space Charge Characteristics of Epoxy/PMIA Fiber Composites
crosslinking epoxy,thermal stability,space charge,aramid fiber
5. High Voltage Insulation System: Liquid, Solid Dielectrics
终稿
Fei Yin / State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University
Lijun Yang / State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University
Wei Hou / State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University
Yuan Yuan / College of Materials Science and Engineering Department of Chongqing University
Aramid fiber insulation poles are widely used because of their excellent mechanical and electrical properties, and the type of curing agent plays an important role in the performance of insulation poles. In the work, the effects of different curing agents (tetrahydrophthalic anhydride (THPA), methyltetrahydrophthalic anhydride (MHAC) and methylnadic anhydride (MNA)) on the thermal stability and space charge characteristics of epoxy resin/PMIA composite structures were investigated based on molecular simulation calculations and experimental methods. Compared with other curing agent/epoxy systems, MHAC/epoxy (EPMH) systems has lower coefficient of thermal expansion, and it has stronger binding ability to PMIA. Under the action of the electric field, the energy gap between the highest electron–occupied orbital and the lowest empty orbital of the EPMH system is larger. The EPMH/PMIA composite system has less space charge accumulation under the electric field, and the charge dissipation rate of the material is faster when the electric field is removed.

 
重要日期

  • 会议日期

    09月25日

    2022

    至

    09月29日

    2022

  • 08月15日 2022

    提前注册日期

  • 09月10日 2022

    报告提交截止日期

  • 11月10日 2022

    注册截止日期

  • 11月30日 2022

    初稿截稿日期

  • 11月30日 2022

    终稿截稿日期

主办单位
IEEE DEIS
承办单位
Chongqing University
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