Preparation and properties of epoxy nanocomposites with excellent thermal conductivity

被引：0

作者：

Guo L. ^{[1
]}

Xiao C. ^{[1
]}

Wang H. ^{[1
]}

Zheng K. ^{[1
]}

Chen L. ^{[1
]}

Tian X. ^{[1
]}

机构：

[1] Institute of Applied Technology Hefei Institutes of Physics Science, Advanced Material Technology and Engineering Research Center, Chinese Academic of Sciences, Hefei

来源：

Zheng, Kang (kzheng@issp.ac.cn) | 1600年 / Sichuan University卷 / 32期

关键词：

Nanocomposites; Surface organic modification; Three-dimensional thermal network;

D O I：

10.16865/j.cnki.1000-7555.2016.11.031

中图分类号：

学科分类号：

摘要：

To improve the thermal conductivity of epoxy resin (EP), thermal conductive fillers with different dimensions were introduced into resin matrix. The “zero-dimensional” nano aluminum nitride (nano-AlN) and the “one-dimensional” carbon nanotubes (MCNTs) were added in order to construct three-dimensional thermal networks. Silane coupling agent N-(β-aminoethyl)-γ-aminopropyl trimethoxy silane (KH792) was used to modify the surface of AlN and diethylenetriamine (DETA) was successfully grafted on the surface of H2SO4/HNO3 treated MCNTs. Therefore, the interface compatibility between the inorganic filler and resin matrix is improved and the heat transfer efficiency of the thermal network is promoted. FT-IR, XRD, Raman results show that KH792 and DETA are successfully grafted on the surface of nanometer AlN and MCNTs. SEM show uniform dispersion of the fillers in resin matrix. Thermal tests show that surface modification and synergistic effect of three dimensional thermal network play a significant role in enhancing the thermal conductivity of composite materials. When the additive amount of hybrid fillers is 50%, the thermal conductivity of composites increases to 2.32 W/(m·K). © 2016, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：162 / 167

页数：5

共 13 条

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