Effect of tetraphenylphenyl‐modified fumed silica on silicone rubber radiation resistance |
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| Authors: | Shen Diao Shengyou Zhang Zhizhou Yang Shengyu Feng Changqiao Zhang Zhaohua Wang Guogang Wang |
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| Affiliation: | 1. Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, People's Republic of China;2. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China;3. Institute for Application of Atomic Energy Shandong Academy of Agricultural Sciences, Jinan 250100, People's Republic of China;4. Beijing guodian futong science and technology development Co.,Ltd., Beijing 100070;5. China Electric Power Science and Technology Institute, Beijing 100192, People's Republic of China |
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| Abstract: | Two kinds of treated fumed silica were prepared by treatment with either tetraphenylphenyltriethoxysilane (TPHTS) or both tetraphenylphenyltriethoxysilane and hexamethyldisilazane (TPHMTS), and were used as reinforcing filler for silicone rubber. The resistance to irradiation of the silicone rubber obtained was investigated by gamma ray of dose 500 kGy in air. The mechanical properties and the average molecular weight between crosslinking points (Mc) of the silicone rubber were determined before and after irradiation. The results show that the fumed silica treated by tetraphenylphenyltriethoxysilane (TPHPHS) can effectively improve the radiation resistance of silicone rubber while the fumed silica treated by both tetraphenylphenyltriethoxysilane and hexamethyldisilazane (MMN) cannot only effectively improve the radiation resistance of silicone rubber but also has excellent reinforcing effect on silicone rubber. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011 |
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| Keywords: | radiation resistance silicone rubber tetraphenylphenyltriethoxysilane fumed silica |
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