Reduced Graphene Oxide Embedded with MQ Silicone Resin Nano-Aggregates for Silicone Rubber Composites with Enhanced Thermal Conductivity and Mechanical Performance

被引：42

作者：

Liang, Weijie ^{[1
]}

Ge, Xin ^{[2
]}

Ge, Jianfang ^{[2
]}

Li, Tiehu ^{[1
]}

Zhao, Tingkai ^{[1
]}

Chen, Xunjun ^{[2
]}

Song, Yaozhen ^{[2
]}

Cui, Yingde ^{[3
]}

Khan, Muhammad ^{[1
]}

Ji, Jianye ^{[2
]}

Pang, Xiaoyan ^{[2
]}

Liu, Ruoling ^{[2
]}

机构：

[1] Northwestern Polytech Univ, Shaanxi Engn Lab Graphene New Carbon Mat & Applic, Sch Mat Sci & Engn, Xian 710072, Peoples R China

[2] Zhongkai Univ Agr & Engn, Guangdong Engn Res Ctr Silicone Elect Fine Chem, Coll Chem & Chem Engn, Guangzhou 510225, Guangdong, Peoples R China

[3] Guangzhou Vocat Coll Sci & Technol, Guangzhou 510550, Guangdong, Peoples R China

来源：

POLYMERS | 2018年 / 10卷 / 11期

关键词：

reduced graphene oxide; MQ silicone resin; silicone rubber composites; thermal conductivity; mechanical properties; POLYMER; REDUCTION; STABILITY; MATRIX;

D O I：

10.3390/polym10111254

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

With developments of the electronics industry, more components are being included in electronic devices, which has led to challenges in thermal management. Using reduced graphene oxide embedded with MQ silicone resin (RGO/MQ) nano-aggregates as the composite filler and silicone rubber (SR) as the matrix, a simple approach is designed to prepare RGO/MQ/SR composites. Reduced graphene oxide (RGO) was first used as a substrate for the growth of MQ silicone resin by hybridization, forming sandwich-like micro structured RGO/MQ nano-aggregates successfully. Then, RGO/MQ was integrated into alpha,omega-dihydroxylpolydimethylsiloxane based on the in situ solvent-free blending method, followed by condensation and vulcanization, fabricating the final RGO/MQ/SR composites. The effective strategy could enhance the adaptability between graphene and silicone matrix under external stimuli at room temperature by embedding nanoscale MQ into the interface of graphene/silicone as the buffer layer. Obvious improvements were found in both thermal conductivity and mechanical properties due to excellent dispersion and interfacial compatibility of RGO/MQ in the host materials. These attractive results suggest that this RGO/MQ/SR composite has potential as a thermal interface material for heat dissipation applications.

引用

页数：13

共 43 条

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