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Polymer Bulletin

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31-10-2018 | Original Paper

Dielectric properties and thermal conductivity of epoxy resin composite modified by Zn/ZnO/Al₂O₃ core–shell particles

Authors: Yang Wang, Lingjie Zhu, Jun Zhou, Beibei Jia, Yingye Jiang, Junkai Wang, Menglan Wang, Yonghong Cheng, Kai Wu

Published in: Polymer Bulletin | Issue 8/2019

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Abstract

Herein, the effect of multilayer core–shell-structured Zn/ZnO/Al₂O₃ particles on thermal conductivity and dielectric properties of epoxy composites was investigated. The core–shell-structured Zn/ZnO particles were obtained by a simple calcination method, and the multilayer core–shell-structured Zn/ZnO/Al₂O₃ particles were prepared using hydrolysis process. The Zn/ZnO/Al₂O₃/epoxy composites were fabricated, and atomic force microscopy (AFM) images showed that the fillers were well distributed in epoxy matrix. Thermal conductivity of Zn/ZnO/Al₂O₃/epoxy composites increased 178% by adding 12.0 wt% of Zn/ZnO/Al₂O₃ particles. The dielectric constant of composites increased obviously with the increased content of Zn/ZnO/Al₂O₃ particles, while the dielectric loss is still low. These results illustrate that the combination of the thermal and dielectric properties tuned by multilayer core–shell particles gives potential application in extended domains for epoxy composites.

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Title: Dielectric properties and thermal conductivity of epoxy resin composite modified by Zn/ZnO/Al2O3 core–shell particles
Authors: Yang Wang
Lingjie Zhu
Jun Zhou
Beibei Jia
Yingye Jiang
Junkai Wang
Menglan Wang
Yonghong Cheng
Kai Wu
Publication date: 31-10-2018
Publisher: Springer Berlin Heidelberg
Published in: Polymer Bulletin / Issue 8/2019
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI: https://doi.org/10.1007/s00289-018-2581-x

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