Influences of Morphology Controllable Alumina on the Thermal Conductivity of Composites of Silicone Rubber 形貌可控氧化铝对硅橡胶复合材料导热性能的影响

Zou Z, Wu W, Wang Y, Kern W, Drummer D (2020)


Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 36

Pages Range: 128-134 and 141

Journal Issue: 4

DOI: 10.16865/j.cnki.1000-7555.2020.0082

Abstract

In order to study the efficiency of alumina with different morphologies in obtaining 3-D thermally conductive networks in silicon rubber (LSR) matrix, the influence of preparation conditions on the morphologies of alumina was studied. Rod-shaped alumina (AF-2 and AF-5) with a length of about 6 μm, diameters of 0.2 μm and 1 μm, respectively, and spherical alumina (AF-6) with a diameter of 1~10 μm were obtained by changing the hydrothermal reaction conditions. The Hashin-Shtrikman model was used to characterize the efficiency of aluminum oxide fillers in the construction of 3-D network in the silicone rubber matrix. The results show that the interaction rates, Χinter, for AF-2, AF-5 and AF-6 at a loading level of 20% are 0.056, 0.093 and 0.034, respectively. At the same time, the thermal properties and dielectric properties of these alumina/LSR composites were studied. The results show that AF-5 causes the least changes in the dielectric properties of silicone, and the AF-5/LSR composite displays the lowest dielectric constant and dielectric loss, which is benefit to applications of the composites in the electronic industry.

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APA:

Zou, Z., Wu, W., Wang, Y., Kern, W., & Drummer, D. (2020). Influences of Morphology Controllable Alumina on the Thermal Conductivity of Composites of Silicone Rubber 形貌可控氧化铝对硅橡胶复合材料导热性能的影响. Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 36(4), 128-134 and 141. https://doi.org/10.16865/j.cnki.1000-7555.2020.0082

MLA:

Zou, Zhiqiang, et al. "Influences of Morphology Controllable Alumina on the Thermal Conductivity of Composites of Silicone Rubber 形貌可控氧化铝对硅橡胶复合材料导热性能的影响." Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering 36.4 (2020): 128-134 and 141.

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