| Effect of Vinyl Silicone Oil on Properties of Reclaimed Silicone Rubber |
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| DOI： |
| Key Words: reclaimed silicone rubber；vinyl silicone oil；physical property |
| Author Name | Affiliation | | GUO Jianhua | South China University of Technology | | ZENG Xingrong | South China University of Technology | | LUO Quankun | South China University of Technology |
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| Abstract: |
| The effect of the viscosity and addition level of vinyl silicone oil on the properties of reclaimed silicone rubber （RSiR） produced by mechanical shearing was investigated.The results showed that，when the viscosity of added vinyl silicone oil increased，the optimum curing time of RSiR compound prolonged and the physical properties decreased. When the addition level of vinyl silicone oil increased，the maximum torque of RSiR compound decreased，the optimum curing time shortened，and the tensile strength and elongation at break of the RSiR vulcanizates increased.The physical properties of RSiR vulcanizates filled with 10 phr vinyl silicone oil which had the viscosity of 1 Pa·s were better.RSiR vulcanizates had only one glass transition temperature （Tg），and when the addition level of vinyl silicone oil increased，the Tg shifted to lower temperature position and the tanδ peak became smaller. Vinyl silicone oil could be used to improve the thermal stability of RSiR vulcanizates. |
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