材料科学技术(英文版)2021，Vol.74Issue(15) ：1-10.

Improved breakdown strength and energy density of polyimide composites by interface engineering between BN and BaTiO3 fibers

Baoquan Wan Haiyu Li Yunhui Xiao Zhongbin Pan Qiwei Zhang
材料科学技术(英文版)2021，Vol.74Issue(15) ：1-10.
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  • NETL
  • NSTL
  • 维普
  • 万方数据

Improved breakdown strength and energy density of polyimide composites by interface engineering between BN and BaTiO3 fibers

Baoquan Wan 1Haiyu Li 1Yunhui Xiao 1Zhongbin Pan 2Qiwei Zhang3
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作者信息

  • 1. Inner Mongolia Key Laboratory of Ferroelectric-related New Energy Materials and Devices, Inner Mongolia University of Science and Technology, 7# Arding Street, Kun District, Baotou 014010, China
  • 2. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315000, Zhejiang, China
  • 3. Inner Mongolia Key Laboratory of Ferroelectric-related New Energy Materials and Devices, Inner Mongolia University of Science and Technology, 7# Arding Street, Kun District, Baotou 014010, China;Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010,China
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Abstract

Conventionally,interface effects between polymers and fillers are essential for determining the breakdown strength and energy storage density of polymer-based dielectric composites.In this study,we found that interface effects between different fillers have similar behavior.BN and BaTi03 fiber composite fillers with three different interface bonding strengths were successfully achieved by controlling composite processes (BT-fiber/BN ＜ BT-fiber@BN ＜ BT-fiber&BN),and introduced into a polyimide (PI)matrix to form composite films.Considerably enhanced breakdown strength and energy storage density were obtained in BT-fiber&BN/PI composites owing to strong interface bonding,compared to other two composite fillers,which are well supported by the data from the finite element simulation.Specifically,PI composites with only 3 wt％ BT-fiber&BN possess an optimized energy storage density of approximately 4.25 J/cm3 at 4343 kV/cm.These results provide an effective way for adjusting and improving the energy storage properties of polymer-based composites.

Key words

Interface effects/Breakdown strength/Energy storage density/Polyimide

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基金项目

This work was supported by the Natural Science Foundation of China(51462028)

Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region(NJYT-17-A10)

Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region(NJYT-17-B09)

出版年

2021
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI
影响因子：0.657
ISSN：1005-0302
被引量2
参考文献量50
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