期刊
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
卷 28, 期 1, 页码 326-332出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TDEI.2020.009153
关键词
Absorption; Tensile strain; Power cables; Rubber; Acceleration; Stress; Testing; cold shrinkable cable accessory; electrical properties; silicone grease; silicone rubber; stress relaxation; tensile stress
资金
- Fundamental Research Funds for the Central Universities (Sichuan University) [YJ201655]
- China Postdoctoral Science Foundation [2018M643475]
The study focuses on the absorption characteristics and evolution of key properties of silicone rubber (SiR) in the presence of silicone grease, investigating the diffusion mechanism and absorption behavior of silicone grease within SiR. Results show that silicone grease absorption follows Langmuir diffusion model and is accelerated under tensile strain. The absorbed silicone grease deteriorates the key electrical and mechanical properties of SiR, with discussions on the mechanism of mechanical property deterioration.
This study focuses on the absorption characteristics and evolution of key properties of silicone rubber (SiR) in the presence of silicone grease; a typical material used in power cable accessories. Diffusion mechanism of silicone grease within the SiR is investigated and the results indicate that it follows Langmuir diffusion model in the absence of significant swelling. Silicone grease absorption behavior is also explored under tensile strain and at various temperatures. The tensile strain accelerates and increases the absorption of silicone grease. In addition, the influence of the absorbed silicone grease on the key electrical and mechanical properties of SiR is surveyed. The investigation shows that the properties deteriorate. In addition, the mechanism of the mechanical property deterioration of SiR is discussed.
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