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RTV mould rubber cured by plasma and surface coating technologies

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Abstract

In this work, plasma and surface coating technologies were combined and used in the modification of room-temperature-vulcanisated silicone rubber (RTV), and their properties were characterised and compared. First, the surface of pure RTV was cured by different plasmas to improve its roughness and hydrophilicity. The plasmas used was nitrogen, oxygen, and atmosphere plasmas. Then, a type of silicone coating, SC, was sprayed on the surface of this plasma treated RTV, and different RTV composites were prepared. The thermal dimensional stability, tensile properties, thermal stability, and acid and alkali resistance of these RTV composites were measured. Results showed the thermal dimensional stability parameters, COLE and COVE, of RTV/SC/P–O2 were much lower compared to neat RTV. Meantime, their tensile properties together with acid and alkali resistance were improved. However, their initial thermal stability was decreased. These RTV composites were also characterised by contact angle test, scanning electron microscope observation, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy.

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Acknowledgements

This work was financially supported by “National Natural Science Funds (No. 51873103)”, “Capacity Building Project of Some Local Colleges and Universities in Shanghai (No. 17030501200)”, “Scientific and Technological Support Projects in the Field of Biomedicine (No. 19441901700)”, “Talent Program of Shanghai University of Engineering Science (No. 2017RC422017)”, “National Innovation Project for College Students (201810856016)” and “First-rate Discipline Construction of Applied Chemistry (No. 2018xk-B-06)”.

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  1. College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, No. 333 Longteng Road, Songjiang District, Shanghai, 201620, China

    Zhihao Gu, Ye Pan & Jincheng Wang

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  1. Zhihao Gu
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Correspondence to Jincheng Wang.

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Gu, Z., Pan, Y. & Wang, J. RTV mould rubber cured by plasma and surface coating technologies. J Rubber Res 22, 133–143 (2019). https://doi.org/10.1007/s42464-019-00019-6

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