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Effect of coupling agents on the thermal conductivity of aluminum particle/epoxy resin composites

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Abstract

In this study, four kinds of coupling agents (CA), i.e., γ-aminopropyltriethoxysilane (KH-550), (3-glycidyloxypropyl)trimethoxysilane (KH-560), isopropyl tri(di(2-ethylhexyl)pyrophosphate)titanate (NDZ-201), isopropyl tri(di(2-ethylhexyl)phosphate)titanate (NDZ-102), were used to investigate their influences on the thermal conductivity and morphology of aluminum (Al) particle reinforced epoxy composite. The results indicate that the thermal conductivity of the composites increases with increasing Al particles concentration up to 48 vol.%; the surface modification of Al particles has an appreciable effect on the thermal conductivity. The thermal conductivities of the composite containing 48 vol.% Al particles treated with the KH-550, KH-560, NDZ-201, and NDZ-102 couplers, are 1.29, 1.48, 1.27, and 1.36 W/m K, respectively, corresponding to 1.03 W/m K of that without surface treatment. Furthermore, the concentration of CA has an influence on the thermal conductivity of the composites.

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Acknowledgements

The author is grateful for the financial supports from National Science Foundation of China (No. 51073180), the Scientific Research Program Funded by Shaanxi Provincial Education Commission (Program No. 2010JK694), China Postdoctoral Science Foundation (Nos. 20070421113, 200801434), and the Scientific Research Foundation of Xi’an University of Science and Technology (Grant No. 2009017, 2010QDJ035).

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Xi’an University of Science & Technology, Xi’an, 710054, People’s Republic of China

    Wenying Zhou

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  1. Wenying Zhou
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Correspondence to Wenying Zhou.

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Zhou, W. Effect of coupling agents on the thermal conductivity of aluminum particle/epoxy resin composites. J Mater Sci 46, 3883–3889 (2011). https://doi.org/10.1007/s10853-011-5309-y

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  • DOI: https://doi.org/10.1007/s10853-011-5309-y

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