Improved thermal conductivity and electromechanical properties of natural rubber by constructing Al2O3-PDA-Ag hybrid nanoparticles

被引：73

作者：

Yang, Dan ^{[1
,2
]}

Ni, Yufeng ^{[1
]}

Liang, Yafei ^{[1
]}

Li, Bingyao ^{[1
]}

Ma, Haonan ^{[1
]}

Zhang, Liqun ^{[3
]}

机构：

[1] Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China

[2] Beijing Key Lab Special Elastomer Composite Mat, Beijing 102617, Peoples R China

[3] Beijing Univ Chem Technol, Dept Mat Sci & Engn, Beijing 100029, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2019年 / 180卷

基金：

中国国家自然科学基金;

关键词：

polymer-matrix composites (PMCs); Interface; Surface treatments; Thermal properties; LOW DIELECTRIC LOSS; POLYMER COMPOSITES; MECHANICAL-PROPERTIES; ELASTOMER COMPOSITES; SILVER NANOPARTICLES; HIGH-PERFORMANCE; GRAPHENE FOAM; NANOCOMPOSITES; FABRICATION; OXIDE;

D O I：

10.1016/j.compscitech.2019.05.019

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In this study, in-situ aluminum oxide-poly(dopamine)-silver (Al2O3-PDA-Ag) hybrid nanoparticles were synthesized using simple and eco-friendly approach. Al2O3 nanoparticles were first modified by PDA through mussel-inspired method, and Ag nanoparticles were then anchored on Al2O3-PDA nanoparticles surfaces through reduction of Ag+ by glucose. The as-obtained Al2O3-PDA-Ag nanoparticles were subsequently incorporated into natural rubber (NR) matrix to yield elastomer composites. The synergistic effect of Ag and Al2O3 nanoparticles resulted in high thermal conductivity of 10 vol% Al2O3-PDA-Ag/NR composite reaching up to 0.20 W/mK. This value was two-fold superior to that of pure NR (0.10 W/mK). In addition, Al2O3-PDA-Ag/NR composites showed excellent electromechanical and mechanical properties. Overall, the proposed method looks promising for future preparation of high-thermal-conductive dielectric materials.

引用

页码：86 / 93

页数：8

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