Effect of Silicone Oil/Silicone Grease on the Absorption of Silicone Rubber Under Multiple Factors

被引：0

作者：

Zhao L. ^{[1
]}

Li Y. ^{[1
]}

Huang X. ^{[1
]}

Ren J. ^{[1
]}

Wang Z. ^{[1
]}

机构：

[1] School of Electrical Engineering and Information, Sichuan University, Chengdu

来源：

Gaodianya Jishu/High Voltage Engineering | 2020年 / 46卷 / 08期

关键词：

Absorption characteristic; Cable accessory; Composite interface; Langmuir model; Silicone grease; Silicone oil; Silicone rubber;

D O I：

10.13336/j.1003-6520.hve.20200407003

中图分类号：

学科分类号：

摘要：

During installing the cable accessories, it is necessary to coat the insulation interface between the accessory insulation and the cable body insulation with silicone grease to ensure the sealing and electrical strength of the interface. However, in the long-term operation, the insulation silicone rubber of the accessory absorbs interfacial silicone grease, thereby reducing its own electrical and mechanical properties, and eventually causing the insulation failure of the accessories. This paper focuses on building a mathematical physical model of the molecular dynamic diffusion process of silicone grease in silicone rubber, which lays a theoretical foundation for the research of silicone rubber absorbing silicone grease. Moreover, the effects of silicone oilviscosity, silicone rubber inorganic filler content and temperature on saturated absorptivityfor silicone oil/silicone grease are studied. The results show that the diffusion process of silicone oil/silicone grease in silicone rubber follows the Langmuir diffusion model. The variation of saturated weight per unit volume of silicone rubber owing to the absorption forsilicone oil/silicone grease decreases with the increases of silicone oil viscosity and contents of aluminum hydroxide and silica in silicone rubber, but increases with the rise of temperature. © 2020, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

引用

页码：2849 / 2855

页数：6

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