| Expansion of High Performance Elastomers（Part 3） —Silicone Rubber |
| Received:July 05, 2021 Revised:July 05, 2021 |
| DOI：10.12136/j.issn.1000-890X.2021.11.0864 |
| Key Words: specialty elastomer；silicone rubber；methyl vinyl silicone；phenyl silicone rubber； ceramifying silicone rubber；addition type liquid silicone rubber |
| Author Name | Affiliation | E-mail | | XIE Zhonglin* | Beijing Research and Design Institute of Rubber Industry Co.，Ltd | 7792xie@sina.com | | MA Xiao | Beijing Research and Design Institute of Rubber Industry Co.，Ltd | | | WU Shuhua | Beijing Research and Design Institute of Rubber Industry Co.，Ltd | |
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| Abstract: |
| Several high-performance specialty elastomers with special properties which can be applied
in the field of non-tire rubber products and used under harsh environments in recent years are reviewed. Part
3 of this review reports some progress in the research and application of high-performance silicone rubber
in recent years. Adding a new type of thermal stabilizer（fumed titanium dioxide） and a high temperature
resistant synergist（trivalent metal-organosilicone complex） can significantly improve the high temperature
resistance of silicone rubber. Phenyl silicone rubber with low phenyl content is a rubber with better high and
low temperature resistance than the current general methyl vinyl silicone rubber. It can be used for long-term
in a hot air environment of 250 ℃ and for short-term at 300 ℃，and it can be used for long-term under the
low temperature of －70 ℃. In another progress，methyl vinyl silicone rubber with high tear strength can be
obtained by use of concentrated crosslinking technology. This paper also summarizes the composition and
ceramifying process of ceramifying silicon rubber and briefly discusses the research status of ceramifying
system（ceramic filler and solvent） and flame-retardant ceramifying silicone rubber in China. In addition，the
basic composition，functional additives and cross-linking reaction principle of addition type liquid silicone
rubber and its applications in composite insulators for power transmission and distribution are introduced. |
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