Study on the Preparation and Thermal Conductivity of Silicone Rubber Filled with Spherical Al2O3-AlN Particles
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Basic and Applied Basic Research Program of Guangdong Province (2019A1515110845), Frontier Sciences Key Research Program of the Chinese Academy of Sciences (QYZDY-SSWJSC010), National Key R&D Project from Minister of Science and Technology of China ( 2017YFB0406000), Youth Innovation Promotion Association of the Chinese Academy of Sciences (2019354), Shenzhen Basic Research Plan Project ( JCYJ20200109114401708), and Shenzhen, the Science, Technology and Fundamental Research and Discipline Layout Project (JCYJ20170818153048647)

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    Abstract:

    Al2O3-AlN/silicone rubber composites with high thermal conductivity were prepared by using Al2O3 and AlN as thermally conductive fillers. By using theory of granulartity, we obtained the densest packing of fillers in the polymer composites. The results showed that the thermal conductivity of the composites reached up to 9.6 W/(m?K) at the loading of 96 wt%, which was 60% higher than that filled with Al2O3. The significant increase of the thermal conductivity of the composites resulted from the increase of the internal thermal conductivity of the sample. Although the composites have undergone extreme cold and hot cycle application conditions, the thermal conductivity of the composites was maintained well, showing excellent reliability.

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ZHANG Chenxu, MAO Dasha, ZENG Xiaoliang, SUN Rong, XU Jianbin, WONG Chinping. Study on the Preparation and Thermal Conductivity of Silicone Rubber Filled with Spherical Al2O3-AlN Particles[J]. Journal of Integration Technology,2021,10(1):14-22

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  • Received:
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  • Online: January 26,2021
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