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Polymers
Volume 13
Issue 17
10.3390/polym13172854
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Communication

Flame Retardancy and Excellent Electrical Insulation Performance of RTV Silicone Rubber

by
Muhammad Tariq Nazir
1,*,
Arslan Khalid
1,
Imrana Kabir
1,
Cheng Wang
1,
Juan-Carlos Baena
1,
Shakeel Akram
2,
Muhammad Shoaib Bhutta
3,
Ghulam Yasin
4,
Bao Toan Phung
5 and
Guan Heng Yeoh
1
1
School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia
2
Institut d’Electronique et des Systèmes (IES), UMR 5214, CNRS, Université de Montpellier, 34095 Montpellier, France
3
Binjiang College, Nanjing University of Information Science & Technology, Wuxi 214105, China
4
Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
5
School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW 2052, Australia
*
Author to whom correspondence should be addressed.
Polymers 2021, 13(17), 2854; https://doi.org/10.3390/polym13172854
Submission received: 5 August 2021 / Revised: 19 August 2021 / Accepted: 24 August 2021 / Published: 25 August 2021
(This article belongs to the Special Issue Multi-Functional Smart Dielectric Materials for High Voltage Insulation)
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Abstract

Room temperature vulcanized (RTV) silicone rubber filled with aluminum trihydrate (ATH) is substantially engaged in electrical outdoor insulation applications. The pristine silicone rubber is highly combustible. ATH filled silicone rubber offers excellent electrical insulation but lacks in providing adequate flame retardancy. This short communication reports the novel results on improved flame retardancy of pristine and ATH filled silicone rubber whilst retaining the electrical insulation properties to a great extent. Results suggest that the presence of only one percent of graphene nanoplatelets with ATH sharply reduces the heat release rate and rate of smoke release. A minor reduction in dielectric breakdown strength and volume resistivity is noticed. Furthermore, permittivity and dielectric loss at power frequency suggest that a marginal 1% concentration of nanoplatelet with ATH is an excellent approach to fabricate flame retardant silicone rubber with an acceptable electrical insulation level.
Keywords: silicone rubber; flame retardancy; combustibility; electrical insulation; dielectric response; dielectric breakdown silicone rubber; flame retardancy; combustibility; electrical insulation; dielectric response; dielectric breakdown

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MDPI and ACS Style

Nazir, M.T.; Khalid, A.; Kabir, I.; Wang, C.; Baena, J.-C.; Akram, S.; Bhutta, M.S.; Yasin, G.; Phung, B.T.; Yeoh, G.H. Flame Retardancy and Excellent Electrical Insulation Performance of RTV Silicone Rubber. Polymers 2021, 13, 2854. https://doi.org/10.3390/polym13172854

AMA Style

Nazir MT, Khalid A, Kabir I, Wang C, Baena J-C, Akram S, Bhutta MS, Yasin G, Phung BT, Yeoh GH. Flame Retardancy and Excellent Electrical Insulation Performance of RTV Silicone Rubber. Polymers. 2021; 13(17):2854. https://doi.org/10.3390/polym13172854

Chicago/Turabian Style

Nazir, Muhammad Tariq, Arslan Khalid, Imrana Kabir, Cheng Wang, Juan-Carlos Baena, Shakeel Akram, Muhammad Shoaib Bhutta, Ghulam Yasin, Bao Toan Phung, and Guan Heng Yeoh. 2021. "Flame Retardancy and Excellent Electrical Insulation Performance of RTV Silicone Rubber" Polymers 13, no. 17: 2854. https://doi.org/10.3390/polym13172854

APA Style

Nazir, M. T., Khalid, A., Kabir, I., Wang, C., Baena, J.-C., Akram, S., Bhutta, M. S., Yasin, G., Phung, B. T., & Yeoh, G. H. (2021). Flame Retardancy and Excellent Electrical Insulation Performance of RTV Silicone Rubber. Polymers, 13(17), 2854. https://doi.org/10.3390/polym13172854

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