多元碳纳米材料协同改性玻璃微珠/环氧树脂复合材料

黄婷; 马传国; 张红; 戴培邦; 张坚

doi:10.13801/j.cnki.fhclxb.20190409.001

多元碳纳米材料协同改性玻璃微珠/环氧树脂复合材料

doi: 10.13801/j.cnki.fhclxb.20190409.001

黄婷¹,
马传国^1,2,,
张红¹,
戴培邦^1,2,
张坚^1,2

1.
桂林电子科技大学材料科学与工程学院, 桂林 541004;
2.
广西电子信息材料构效关系重点实验室, 桂林 541004

基金项目: 国家自然科学基金（51763006）；广西自然科学基金（2016JJA160040）；广西科技重大专项（桂科AA18242010-2）

详细信息

通讯作者:
马传国,博士,教授,博士生导师,研究方向为功能高分子复合材料,E-mail:machuanguo@guet.edu.cn

中图分类号: TB332
计量
- 文章访问数: 554
- PDF下载量: 149
- 被引次数: 0
出版历程
- 收稿日期: 2019-01-16
- 刊出日期: 2020-01-15

Synergistic modification of glass beads/epoxy composites with multi-carbon nanomaterials

1.
School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
2.
Guangxi Key Laboratory of Information Materials, Guilin 541004, China

摘要

摘要: 采用静电自组装法制备了还原氧化石墨烯表面修饰中空玻璃微珠（rGO@HGB），与导电炭黑（CB）、石墨烯纳米片（GNPs）一起与环氧树脂（EP）共混，制备了CB-GNPs-rGO@HGB/EP复合材料，并系统研究了复合材料的微观结构、导电性能和介电性能。结果表明，rGO@HGB的加入能够显著提高rGO@HGB/EP复合材料的导电性能和介电常数，进一步引入CB和GNPs后，形成了被rGO@HGB隔离的导电逾渗网络，rGO、CB和GNPs三者对提高CB-GNPs-rGO@HGB/EP复合材料性能具有协同作用。在CB与GNPs的总含量固定为0.2vol%，且二者的体积比为10：1时，CB-GNPs-rGO@HGB/EP复合材料的导电与介电性能最优，对应的体积电阻率为1.88×10⁴ Ωcm，在1 kHz下的介电常数高达454.5，分别比CB-rGO@HGB/EP和GNPs-rGO@HGB/EP复合材料提高了11.3%和10.7%，而其介电损耗仅为0.065。
- 聚合物基 /
- 复合材料 /
- 隔离结构 /
- 协同作用 /
- 导电性能 /
- 介电性能
Abstract: The surface-modified hollow glass beads with reduced graphene oxide (rGO@HGB) were prepared by electrostatic self-assembly method and then blended with conductive carbon black (CB), graphene nanoplates (GNPs) and epoxy resin (EP), and were further used to prepare CB-GNPs-rGO@HGB/EP composites. The microstructure, conductivity properties and dielectric properties of the CB-GNPs-rGO@HGB/EPcomposites were systematically studied. The results show that rGO@HGB can significantly improve the electrical conductivity and dielectric constant of rGO@HGB/EP composites. After further addition of CB and GNPs, a segregated conductive percolation network is formed by rGO@HGB. There are efficient synergistic effects of rGO, CB and GNPs on improving the properties of CB-GNPs-rGO@HGB/EP composites. With 0.2vol% CB-GNPs at the volume ratio of 10:1, the properties of CB-GNPs-rGO@HGB/EP composites are optimal with the volume resistivity of 1.88×10⁴ Ωcm and the dielectric constant of 454.5 at 1 kHz, which is 11.3% and 10.7% higher than that of CB-rGO@HGB/EP and GNPs-rGO@HGB/EP composites, respectively, while the dielectric loss is only 0.065.
- polymer matrix /
- composites /
- segregated structure /
- synergistic effect /
- electrical conductivity /
- dielectric properties