球型Al2O3-AlN 颗粒复配填充型硅橡胶的制备及导热性能研究
球型Al2O3-AlN 颗粒复配填充型硅橡胶的制备及导热性能研究
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广东省基础和应用基础研究项目(2019A1515110845);中国科学院前沿科学重点研究项目(QYZDY-SSWJSC010);国家科技部重点研发项目(2017YFB0406000);中国科学院青年创新促进会基金项目(2019354);深圳市基础研究计划项目(JCYJ20200109114401708);深圳市科技与基础研究及学科布局项目( JCYJ20170818153048647)

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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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    摘要:

    以 Al2O3 和 AlN 的球形粉体颗粒作为导热填料、以硅橡胶为基体,通过特定的工艺手段得到具有高导热特征的 Al2O3-AlN/硅橡胶复合材料。结果表明:根据颗粒级配理论模型的计算可得最密堆积配方,该配方的复合材料在 9.6 wt% 填料填量下的热导率可高达 9.6 W/(m·K),其热导率相比只填充 Al2O3颗粒的样品提高了 60%。复合材料热导率的显著提高和样品内部导热路径的增多密切相关。通过极端的冷热循环应用条件模拟测试,该复合材料的热导率保持良好,表现出了良好的可靠性。

    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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引文格式
张晨旭,毛大厦,曾小亮,孙 蓉,许建斌,汪正平.球型Al2O3-AlN 颗粒复配填充型硅橡胶的制备及导热性能研究 [J].集成技术,2021,10(1):14-22

Citing format
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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  • 在线发布日期: 2021-01-26
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