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Improving the Mechanical and Electrical Properties of Ceramizable Silicone Rubber/Halloysite Composites and Their Ceramic Residues by Incorporation of Different Borates

1
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
2
Institute of Modern Industrial Technology of SCUT in Zhongshan, Zhongshan 528400, China
*
Author to whom correspondence should be addressed.
Polymers 2018, 10(4), 388; https://doi.org/10.3390/polym10040388
Received: 9 March 2018 / Revised: 26 March 2018 / Accepted: 27 March 2018 / Published: 1 April 2018
(This article belongs to the Special Issue Siloxane-Based Polymers)
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Abstract

Ceramizable silicone rubber (MVQ)/halloysite (HNT) composites were fabricated by incorporation of three different borates, including sodium tetraborate decahydrate, ammonium pentaborate, and zinc borate into MVQ matrix, respectively. The composites without any borates were also prepared as control. The effect of the borates on the mechanical and electrical properties of MVQ/HNT composites was investigated. The ceramic residues were obtained from the decomposition of the composites after sintering at 1000 °C. The effect of the borates on the linear shrinkage, weight loss, and flexural and impact strength of the residues was also studied. The fracture surfaces of the composites and their corresponding residues were observed by SEM. The proposed ceramizable mechanism of the composites by incorporation of different borates was revealed by XRD analysis. View Full-Text
Keywords: ceramizable silicone rubber; borate; halloysite; composite; ceramizable mechanism ceramizable silicone rubber; borate; halloysite; composite; ceramizable mechanism
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Guo, J.; Chen, X.; Zhang, Y. Improving the Mechanical and Electrical Properties of Ceramizable Silicone Rubber/Halloysite Composites and Their Ceramic Residues by Incorporation of Different Borates. Polymers 2018, 10, 388.

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