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        柔性PMIA復合電介質的制備及儲能特性
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        作者單位:

        1.河南工程學院 材料工程學院;2.平頂山神馬簾子布發展有限公司 聯合研發中心;3.東華大學 材料科學與工程學院

        作者簡介:

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        中圖分類號:

        TQ630

        基金項目:

        河南工程學院博士培育基金(D2021009);河南省科技攻關項目(222102240033)


        Preparation and Energy Storage properties of FlexiblePoly(m-phenyleneisophthalamide) Dielectric Composites
        Author:
        Affiliation:

        1.College of Materials Engineering,Henan University of Engineering;2.Joint Research and Development Center,Pingdingshan Shenma Cord Fabric Development Co,Ltd;3.College of Materials Science and Engineering,Donghua University

        Fund Project:

        Foundation for Doctorate Research of Henan University of Engineering ( D2021009),Science and Technology Project of Henan Province (222102240033)

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          摘要:

          為了抑制由于鈦酸鋇(BT)納米粒子和聚間苯二甲酰間苯二胺(PMIA)介電常數差異引起的PMIA復合電介質內部局部電場畸變,分別將二氧化鈦(TiO2)和聚多巴胺(PDA)包裹在BT表面形成雙核殼結構PDA@TiO2@BT復合粒子(PTBP),隨后PTBP與PMIA溶液復合制備得到PTBP/PMIA復合膜 。結果表明:隨著PTBP含量的增加,PTBP/PMIA復合膜 的介電常數明顯提升;當PTBP含量為PMIA質量的10 wt% 時,復合電介質在1×103 Hz時的介電常數相較于PMIA基體提高了57.1%,同時在高溫環境中(>150 ℃),PTBP/PMIA復合膜的介電性能保持穩定。此外,PTBP復合粒子還明顯改善了PTBP/PMIA復合膜的儲能特性;當PTBP含量為10 wt%時,復合電介質在室溫、250 MV/m 時的儲能密度(Ue)和放電能量密度(Ud)分別為1.91 J/cm3和1.23 J/cm3,相較于PMIA基體分別提升了103.2%和61.8%。

          Abstract:

          In order to suppress the local electric field distortion caused by the difference of dielectric constant between Barium titanate(BT) nanoparticles and Poly(m-phenyleneisophthalamide)(PMIA), TiO2 and polydopamine(PDA) were coated on surface of BT to generate core-double-shell structured PDA@TiO2@BT nanoparticles(PTBP), then the PTBP nanoparticles were added to PMIA solution to fabricate PTBP/PMIA dielectric composites. The results show that the dielectric constant of PMIA dielectric composite obviously increases with increment of PTBP content. When PTBP content reaches up to 10 wt%, the dielectric constant of PTBP/PMIA dielectric composite increases by 57.1%, compared with that of as-prepared PMIA at 103 Hz. The dielectric properties of PTBP/PMIA dielectric composites also maintain stable at high temperature(>150 ℃). In addition, PTBP nanoparticles significantly improve the energy storage properties of PTBP/PMIA dielectric composites. When the PTBP content is 10 wt%, the energy storage density(Ue) and discharge energy density(Ud) of corresponding PMIA dielectric composite are 1.91 J/cm3 and 1.23 J/cm3 at room temperature and 250 MV/m, respectively, which are 103.2% and 61.8% higher than that of as-prepared PMIA.

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        引用本文

        段廣宇,胡鳳英,吳齊,張延輝,胡祖明.柔性PMIA復合電介質的制備及儲能特性[J].精細化工,2023,40(7):

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        歷史
        • 收稿日期:2023-03-28
        • 最后修改日期:2023-05-15
        • 錄用日期:2023-05-19
        • 在線發布日期: 2023-06-08
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