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Effect of poly(dimethylsiloxane) binder in a silica-based superhydrophobic coating on mechanical properties, surface roughness, and wettability

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Abstract

This work investigates the influence of poly(dimethylsiloxane) (PDMS) within a nanocomposite coating solution constituted by silica nanoparticles and toluene on mechanical properties, surface wettability, and surface morphology. The developed coating's hardness and elastic modulus were studied in detail. A variation in mechanical properties was observed as the amount of PDMS was varied. Also, the average surface roughness, skewness, and kurtosis values show the influence of the amount of PDMS on the surface roughness characteristics of the coating. Furthermore, it was observed that the water contact angles were linked with the proportion of PDMS.

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Acknowledgments

This work was supported by the Center for Midstream Management and Science (CMMS) of Lamar University. The authors appreciate the Center for Innovation, Commercialization and Entrepreneurship (CICE) at Lamar University for providing lab space.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Lamar University, Beaumont, TX, 77710, USA

    Divine Sebastian & Chun-Wei Yao

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  1. Divine Sebastian
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  2. Chun-Wei Yao
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Correspondence to Chun-Wei Yao.

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The supplementary material for this article can be found at https://doi.org/10.1557/mrc.2020.59.

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Sebastian, D., Yao, CW. Effect of poly(dimethylsiloxane) binder in a silica-based superhydrophobic coating on mechanical properties, surface roughness, and wettability. MRS Communications 10, 512–518 (2020). https://doi.org/10.1557/mrc.2020.59

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  • DOI: https://doi.org/10.1557/mrc.2020.59

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