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Ageing and Life Prediction of Silicone Rubber-based Flame-retardant Transmission Insulators
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Siyi XU1, 2, Dan CAO2, Cheng ZHOU2, Jianxi LI2, Liguo SHEN1
Insulating Materials | 2021, 54(5) : 66 - 71
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Insulating Materials | 2021, 54(5): 66-71
• Insulation Technology •
Ageing and Life Prediction of Silicone Rubber-based Flame-retardant Transmission Insulators
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Siyi XU1, 2, Dan CAO2, Cheng ZHOU2, Jianxi LI2, Liguo SHEN1
Affiliations
  • 1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
  • 2CGN-DELTA (Taicang) Testing Technology Co., Ltd., Taicang 215400, China
Published: 2021-05-20 doi: 10.16790/j.cnki.1009-9239.im.2021.05.010
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In this paper, thermal ageing tests were conducted on the prepared silicone rubber-based flame-retardant transmission insulator samples at 210℃ for different times by high temperature accelerated ageing method, and their performance were tested by scanning electron microscope (SEM), Fourier infrared spectroscopy (FTIR), and contact angle tester. The results show that with the extension of ageing time, the melamine cyanurate (MCA) flame retardant particles in the sample decompose continuously, a large number of pores are formed on the surface of sample, and the infrared intensity of amino and hydroxyl functional groups continues to decrease. The contact angles measured by different solutions show a downward trend, and the erosion of hydrophobicity by the salt solution and acid solution is more serious. The lifetime of samples under the water condition calculated by Hallberg-Peck model and the contact angle is 16.6 years, the lifetime of samples under acid rain conditions is 10.4 years, and the lifetime of samples under seawater condition is 10.2 years.

silicone rubber  /  insulator  /  thermal ageing  /  life assessment
Siyi XU, Dan CAO, Cheng ZHOU, Jianxi LI, Liguo SHEN. Ageing and Life Prediction of Silicone Rubber-based Flame-retardant Transmission Insulators[J]. Insulating Materials, 2021 , 54 (5) : 66 -71 . DOI: 10.16790/j.cnki.1009-9239.im.2021.05.010
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.05.010
  • Receive Date：2020-07-03
  • Online Date：2026-03-03
  • Published：2021-05-20
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  • Received：2020-07-03
  • Revised：2020-08-06
Affiliations
    1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
    2CGN-DELTA (Taicang) Testing Technology Co., Ltd., Taicang 215400, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.05.010
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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