Research on Thermal Aging Characteristics and Mechanism of the Silicon Rubber Insulation Layer of Cable Joints

Yong Lan Li; Man Shi Qiu; Jia Wei Ma; Guo Wen Kuang; Nai Kui Gao; Hai Yun Jin; Xin Yu

doi:10.4028/www.scientific.net/MSF.960.161

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HomeMaterials Science ForumMaterials Science Forum Vol. 960Research on Thermal Aging Characteristics and...

Research on Thermal Aging Characteristics and Mechanism of the Silicon Rubber Insulation Layer of Cable Joints

Abstract:

In order to solve the thermal aging problem of silicone rubber insulation layer of 220 kV integral prefabricated cable joints, the mass loss and thermal gravimetric (TG) were tested. The thermal aging mechanism of thermal degradation reaction of silicone rubber molecular chains was analyzed by gel content test and infrared spectrum test (IR). The results showed that the cross-linked network of the molecular chain structure gradually deteriorates, resulting in the increase of mass loss rate and the decrease of thermal stability. The results also showed that the increase of dual peak of differential thermal weight (DTG), the decrease of initial decomposition temperature and the remaining mass. With increasing aging temperature and aging time, the aging would be accelerated. These properties could reflect the degree of thermal aging of silicone rubber insulation layer. The results could also provide theoretical support for the preparation, operation and maintenance for silicone rubber cable joints.

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Periodical:

Materials Science Forum (Volume 960)

Pages:

161-166

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.960.161

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Online since:

June 2019

Authors:

Yong Lan Li*, Man Shi Qiu, Jia Wei Ma, Guo Wen Kuang, Nai Kui Gao, Hai Yun Jin, Xin Yu

Keywords:

Aging Mechanism, Cable Joints, Silicone Rubber, Thermal Aging Properties

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References

[1] FEI Yijun, ZHANG Yunxiao, ZHOU Yuanxiang, et al. Thermo characteristics of Silicone rubber and its effects on operational reliability of extra-high voltage cable accessories[J]. Advanced Technology of Electrical Engineering and Energy, 2016, 42(02): 535-542.

Google Scholar

[2] CHEN Can, WANG Xilin, JIA Zhidong, et al. A Polymer Crystallization Based Study on the Degradation Mechanism of Liquid Silicone Rubber[J]. Proceedings of the CSEE, 2014, 34(09): 1462-1470.

Google Scholar

[3] ZHANG Dayong, LIU Xiaohui, ZHAO Ying, et al. Heat-Resistance and Thermal Aging Properties of Dehydrogenated RTV Silicone Rubber[J]. Silicone Material, 25 (02): 87-90.

Google Scholar

[4] Patel M, Skinner A R. Thermal ageing studies on room-temperature vulcanised polysiloxane rubbers[J]. Polymer Degradation and Stability, 2001, 73: 399–402.

DOI: 10.1016/s0141-3910(01)00118-5

Google Scholar

[5] LI Ang. Aging phenomenon of rubber and its aging mechanism[J]. Special Purpose Rubber Products, 2009, 30(5): 56-67.

Google Scholar