Citation: Bo Yang, Shuang-Hong Zhang, Yi-Feng Zou, Wen-Shi Ma, Guo-Jia Huang, Mao-Dong Li. Improving the Thermal Conductivity and Mechanical Properties of Two-component Room Temperature Vulcanized Silicone Rubber by Filling with Hydrophobically Modified SiO₂-Graphene Nanohybrids[J]. Chinese Journal of Polymer Science, ;2019, 37(2): 189-196. doi: 10.1007/s10118-019-2185-4 shu

Improving the Thermal Conductivity and Mechanical Properties of Two-component Room Temperature Vulcanized Silicone Rubber by Filling with Hydrophobically Modified SiO₂-Graphene Nanohybrids

a.
Guangzhou Special Pressure Equipment Inspection and Research Institute, Guangzhou 510663, China
b.
School of Materials Science and Technology, South China University of Technology, Guangzhou 510000, China

Corresponding author: Guo-Jia Huang, huangguojia@163.com
Received Date: 21 June 2018
Revised Date: 27 August 2018
Accepted Date: 30 August 2018
Available Online: 25 September 2018

The SiO₂ nanoparticles were coated on the surface of graphene oxide (GO) by sol-gel method to get the SiO₂-G compound. The SiO₂-G was restored and oleophylically modified to prepare hydrophobic modified SiO₂-G (HM-SiO₂-G) which was subsequently added to silicone rubber matrix to prepare two-component room temperature vulcanized (RTV-2) thermal conductive silicone rubber. The morphology, chemical structure and dispersity of the modified graphene were characterized with SEM, FTIR, Raman, and XPS methods. In addition, the heat-resistance behavior, mechanical properties, thermal conductivity, and electrical conductivity of the RTV-2 silicone rubber were also studied systematically. The results showed that the SiO₂ nanoparticles were coated on graphene oxide successfully, and HM-SiO₂-G was uniformly dispersed in RTV-2 silicone rubber. The addition of HM-SiO₂-G could effectively improve the thermal stability, mechanical properties and thermal conductivity of RTV-2 silicone rubber and had no great influence on the electrical insulation performance.
- Graphene,
- Modification,
- Two components,
- Room temperature vulcanized silicone rubber,
- Thermal conductivity
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Improving the Thermal Conductivity and Mechanical Properties of Two-component Room Temperature Vulcanized Silicone Rubber by Filling with Hydrophobically Modified SiO2-Graphene Nanohybrids

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通讯作者: 陈斌, bchen63@163.com

Improving the Thermal Conductivity and Mechanical Properties of Two-component Room Temperature Vulcanized Silicone Rubber by Filling with Hydrophobically Modified SiO₂-Graphene Nanohybrids