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Bubble-templated Construction of Three-dimensional Ceramic Network for Enhanced Thermal Conductivity of Silicone Rubber Composites

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Abstract

With the continuous development of the electronics industry, the energy density of modern electronic devices increases constantly, thus releasing a lot of heat during operation. Modern electronic devices take higher and higher request to the thermal interface materials. Achieving high thermal conductivity needs to establish an interconnecting thermal conductivity network in the matrix. For this purpose, the suspension of Al2O3 and curdlan was first foamed to construct a bubble-templated continuous ceramic framework. Owing to the rapid gelation property of curdlan, we can easily remove moisture by hot air drying. Finally, the high thermally conductive composites are prepared by vacuum impregnation of silicone rubber. The result showed that composites prepared by our method have higher thermal conductivity than the samples obtained by traditional method. The thermal conductivity of the prepared composite material reached 1.253 W·m−1·K−1 when the alumina content was 69.6 wt%. This facile method is expected to be applied to the preparation of high-performance thermal interface materials.

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Acknowledgments

The authors would like to appreciate the financial support from the Joint Foundation of Ministry of Education for equipment pre-research (No. 6141A020222XX) and Post-doctoral Science Fund (No. 2020M680405).

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Author notes

  1. These authors contributed equally to this work.

Authors and Affiliations

  1. State Key Laboratory of Organie-Inorganie Composites, Beijing University of Chemical Technology, Beijing, 100029, China

    Shou-Jun Li, Jing-Chao Li, Pei-Zhi Ji, Wen-Feng Zhang, Yong-Lai Lu & Li-Qun Zhang

  2. Beijing Key Laboratory of Wood Science and Engineering & MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing, 100083, China

    Jing-Chao Li

  3. Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China

    Yong-Lai Lu & Li-Qun Zhang

  4. Engineering Research Center of Elastomer Materials Energy Conservation and Resources, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China

    Yong-Lai Lu & Li-Qun Zhang

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  1. Shou-Jun Li
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  2. Jing-Chao Li
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Correspondence to Yong-Lai Lu.

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Li, SJ., Li, JC., Ji, PZ. et al. Bubble-templated Construction of Three-dimensional Ceramic Network for Enhanced Thermal Conductivity of Silicone Rubber Composites. Chin J Polym Sci 39, 789–795 (2021). https://doi.org/10.1007/s10118-021-2581-4

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