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Effect of Vinyl-Terminated Silicone Oil Chain Length and Reinforcing Agent on the Properties of Silicone Rubber
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Effect of Vinyl-Terminated Silicone Oil Chain Length and Reinforcing Agent on the Properties of Silicone Rubber

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Abstract:

To solve the problems of low strength and high viscosity of room temperature vulcanized liquid silicone rubber, a series of terminated vinyl silicone oil were designed and synthesized, and low viscosity and high strength silicone rubber were prepared by the mechanical reinforcing agent. the results show that the molecular structure of the vinyl-terminated silicone oil has a significant effect on the mechanical properties and viscosity of the silicone rubber, and the best performance is found when the content of vinyl-terminated silicone oil is 0.16%. The low viscosity and high strength silicone rubber prepared from it was reinforced by vinyl MQ resin and fumed silica, which had a significant effect on improving the performance. Its tensile strength increased to 5.03 MPa, elongation at break to 338.90%, and tear strength to 7.15 kN/m compared to conventional silicone rubber, while the hardness increased to 43°. The viscosity is 34.9 Pa•s. The compression modulus is 7.48 MPa.

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Periodical:

Key Engineering Materials (Volume 905)

Pages:

221-230

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.905.221

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Online since:

January 2022

Authors:

Hong Wei Pan, Chong Guang Zang*, Yu Long Zhang

Keywords:

Chain Length, Mechanical Properties, Vinyl-Terminated Silicone Oil

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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