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

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering Sichuan Daxue

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.

Authors with CRIS profile

Dietmar Drummer Lehrstuhl für Kunststofftechnik (LKT)

Involved external institutions

East China University of Science and Technology (ECUST) CN China (CN) Montanuniversität Leoben AT Austria (AT)

How to cite

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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