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CP@hBT-CNT/PDMS三相介电复合材料的制备与性能

王心成 成尚儒 高强民 唐尧凯 袁莹欣 李安琦 观姗姗

王心成, 成尚儒, 高强民, 唐尧凯, 袁莹欣, 李安琦, 观姗姗. CP@hBT-CNT/PDMS三相介电复合材料的制备与性能[J]. 功能高分子学报. doi: 10.14133/j.cnki.1008-9357.20210731001
引用本文: 王心成, 成尚儒, 高强民, 唐尧凯, 袁莹欣, 李安琦, 观姗姗. CP@hBT-CNT/PDMS三相介电复合材料的制备与性能[J]. 功能高分子学报. doi: 10.14133/j.cnki.1008-9357.20210731001
WANG Xincheng, CHENG Shangru, GAO Qiangmin, TANG Yaokai, YUAN Yingxin, LI Anqi, GUAN Shanshan. Preparation and Properties of CP@hBT-CNT/PDMS Three-Phase Dielectric Composite[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20210731001
Citation: WANG Xincheng, CHENG Shangru, GAO Qiangmin, TANG Yaokai, YUAN Yingxin, LI Anqi, GUAN Shanshan. Preparation and Properties of CP@hBT-CNT/PDMS Three-Phase Dielectric Composite[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20210731001

CP@hBT-CNT/PDMS三相介电复合材料的制备与性能

doi: 10.14133/j.cnki.1008-9357.20210731001
基金项目: 国家自然科学基金(51903133);山东省重点研发计划项目(2019 GGX103030)
详细信息
    作者简介:

    王心成(1997—),男,在读研究生,主要研究方向为功能复合材料。E-mail:1052016626@qq.com

    通讯作者:

    观姗姗, E-mail:guanshanshan.86@163.com

  • 中图分类号: O63

Preparation and Properties of CP@hBT-CNT/PDMS Three-Phase Dielectric Composite

  • 摘要: 基于卡波姆(CP)和羟基化钛酸钡(hBT)之间的相互作用,通过CP对hBT的包覆制备了“核-壳”结构CP功能化改性的hBT杂化粒子(CP@hBT)。以CP@hBT为陶瓷填料,氨基化碳纳米管(CNT)为导电填料,聚二甲基硅氧烷(PDMS)为基体,利用溶液共混法制备CP@hBT-CNT/PDMS介电复合材料。系统研究了CP功能化改性对CP@hBT-CNT/PDMS微观形貌和介电性能的影响。结果表明,CP对hBT功能化改性后可以有效减少CP@hBT杂化粒子的沉降和团聚问题,增强了其在PDMS基体中的分散性。在1 000 Hz条件下,当w(CNT)=0.75%时,CP@hBT-CNT/PDMS复合材料的介电常数可以达到138,同时介电损耗仍较低。

     

  • 图  1  hBT和CP@hBT的FT-IR谱图(a)和拉曼谱图(b)

    Figure  1.  FT-IR(a) and Raman (b) spectra of hBT and CP@hBT

    图  2  hBT和CP@hBT悬浮液的分散性

    Figure  2.  Dispersibility of hBT and CP@hBT suspensions

    图  3  (a) hBT和(b,c) CP@hBT的TEM照片; (d) CP@hBT核壳粒子形成机理示意图

    Figure  3.  TEM images of (a) hBT and (b, c) CP@hBT; (d) Schematic diagram of CP@hBT core-shell formation mechanism

    图  4  (a,b) hBT-CNT(1.0%)/PDMS复合材料与(c,d) CP@hBT-CNT(1.0%)/PDMS复合材料断面形貌的SEM照片

    Figure  4.  Cross-section SEM images of (a,b) hBT-CNT(1.0%)/PDMS composite and (c,d) CP@hBT-CNT(1.0)/PDMS composite

    图  5  CP@hBT-CNT/PDMS复合材料的(a)电导率、(b)介电常数以及(c)介电损耗

    Figure  5.  (a) Conductivity, (b) dielectric constant and (c) dielectric loss of CP@hBT-CNT/PDMS composites

    图  6  CP@hBT-CNT/PDMS复合材料的电导率与x的关系

    Figure  6.  Relationship between the conductivity and x for CP@hBT-CNT/PDMS composites

    图  7  复合材料的介电性能

    Figure  7.  Dielectric properties of composites

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出版历程
  • 收稿日期:  2021-07-31
  • 录用日期:  2021-11-22
  • 网络出版日期:  2021-11-29

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