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

Published online by Cambridge University Press:  12 August 2020

Divine Sebastian  and
Chun-Wei Yao Open the ORCID record for Chun-Wei Yao [Opens in a new window]
Divine Sebastian
Affiliation:
Department of Mechanical Engineering, Lamar University, Beaumont, TX77710, USA
Chun-Wei Yao*
Affiliation:
Department of Mechanical Engineering, Lamar University, Beaumont, TX77710, USA
*
Address all correspondence to Chun-Wei Yao at cyao@lamar.edu
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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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Type
Research Letters
Information
MRS Communications , Volume 10 , Issue 3 , September 2020 , pp. 512 - 518
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Copyright
Copyright © Materials Research Society, 2020

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