Flame Retardancy and Excellent Electrical Insulation Performance of RTV Silicone Rubber

被引：20
|
作者：
Nazir, Muhammad Tariq [1 ]
Khalid, Arslan [1 ]
Kabir, Imrana [1 ]
Wang, Cheng [1 ]
Baena, Juan-Carlos [1 ]
Akram, Shakeel [2 ]
Bhutta, Muhammad Shoaib [3 ]
Yasin, Ghulam [4 ]
Bao Toan Phung [5 ]
Yeoh, Guan Heng [1 ]
机构：
[1] Univ New South Wales, Sch Mech & Mfg Engn, Sydney, NSW 2052, Australia
[2] Univ Montpellier, Inst Elect & Syst IES, CNRS, UMR 5214, F-34095 Montpellier, France
[3] Nanjing Univ Informat Sci & Technol, Binjiang Coll, Wuxi 214105, Jiangsu, Peoples R China
[4] Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Peoples R China
[5] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
POLYMERS | 2021年 / 13卷 / 17期
关键词：
silicone rubber; flame retardancy; combustibility; electrical insulation; dielectric response; dielectric breakdown; EROSION RESISTANCE; SUPPRESSION; TRIHYDRATE; TRACKING;
D O I：
10.3390/polym13172854
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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.
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页数：6
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