氧化石墨/钛酸钡/环氧树脂三相复合材料的制备及其介电性能研究

doi:10.3724/SP.J.1077.2014.13200

无机材料学报 ›› 2014, Vol. 29 ›› Issue (1): 71-76.DOI: 10.3724/SP.J.1077.2014.13200

氧化石墨/钛酸钡/环氧树脂三相复合材料的制备及其介电性能研究

寇思旺^1,2, 于淑会², 孙蓉², 杨海朋¹

(1. 深圳大学材料学院, 深圳518060; 2. 中国科学院深圳先进技术研究院, 深圳518055)

收稿日期:2013-04-10 修回日期:2013-05-22 出版日期:2014-01-20 网络出版日期:2013-12-09
作者简介:寇思旺(1989–), 男, 硕士研究生. E-mail:kou8907@163.com
基金资助:
国家自然科学基金(51377157); 广东省“先进电子封装材料”创新团队项目(2011D052); 深圳市基础研究计划杰青项目(JC201005270367A)

Preparation and Dielectric Properties of the Three-phase Composites of Graphite Oxide/Barium Titanate/Epoxy Resin

KOU Si-Wang^1,2, YU Shu-Hui², SUN Rong², YANG Hai-Peng¹

(1. College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China; 2. Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China)

Received:2013-04-10 Revised:2013-05-22 Published:2014-01-20 Online:2013-12-09
About author:KOU Si-Wang. E-mail:kou8907@163.com
Supported by:
National Natural Science Fourdation of China (51377157); Advanced Electronic Packaging Materials Innovation Team of Guangdong Province (2011D052); Shenzhen Outstanding Young Talents Project (JC201005270367A)

摘要/Abstract

摘要： 利用浓硫酸、高锰酸钾等强氧化剂制备了氧化石墨, 将其与钛酸钡和环氧树脂复合, 制备了三相复合材料。研究了氧化石墨的添加量对于复合材料介电性能的影响。结果发现在氧化石墨的添加量很少时, 三相复合材料的介电常数显著地高于钛酸钡/环氧树脂两相复合材料, 同时介电损耗仍然维持在较低的水平。钛酸钡/环氧树脂的介电常数为17.7 (20℃, 1 kHz), 当加入3wt%氧化石墨, 介电常数增加到42.6, 介电损耗为0.043。因此该三相复合材料适合用于埋入式电容器的介质材料。最后初步探讨了氧化石墨对复合材料介电性能的影响机理。

关键词: 氧化石墨, 钛酸钡, 环氧树脂, 三相复合, 介电性能

Abstract: Polymer-based dielectric composites have important applications in the fields of power engineering, microelectronics and high-density packaging. In this study, graphite oxide was prepared through oxidizing nature graphite ?akes with concentrated sulfuric acid and potassium permanganate. And graphite oxide/barium titanate/epoxy resin (GO/BT/ER) three-phase composites were prepared. Dielectric performance of the composites with varied GO loading amounts was investigated. The experimental results showed that the GO/BT/ER composites with low GO loading amount exhibited higher dielectric constant than that of BT/ER and the dielectric loss remained low. The dielectric constant of 3wt%GO/BT/ER composite was 42.6 and the dielectric loss was 0.043 (20℃, 1 kHz), while the dielectric constant of the BT/ER composites was 17.7. Therefore, the GO/BT/ER composites are promising candidates for the embedded dielectrics. Furthermore, the mechanism of graphite oxide on the dielectric properties of the composites also explored.

Key words: graphite oxide, barium titanate, epoxy resin, three-phase composite, dielectric properties

中图分类号:

TQ174

寇思旺, 于淑会, 孙蓉, 杨海朋. 氧化石墨/钛酸钡/环氧树脂三相复合材料的制备及其介电性能研究[J]. 无机材料学报, 2014, 29(1): 71-76.

KOU Si-Wang, YU Shu-Hui, SUN Rong, YANG Hai-Peng. Preparation and Dielectric Properties of the Three-phase Composites of Graphite Oxide/Barium Titanate/Epoxy Resin[J]. Journal of Inorganic Materials, 2014, 29(1): 71-76.

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氧化石墨/钛酸钡/环氧树脂三相复合材料的制备及其介电性能研究

Preparation and Dielectric Properties of the Three-phase Composites of Graphite Oxide/Barium Titanate/Epoxy Resin

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