I am doing a comparison between the two materials and the surface tension for water with these two surfaces.
I also need to know what are the sources such as textbooks, papers, ..., etc that I can use to find various values of contact angles of water over different surfaces made of different materials.
Dear Dr. M. M. Awad,
the reported contact angle of stainless steel is usually 71 degree (also if e.g. 62.1 degree is also found [1]) and of PE is 90 degree [2].
[1] Asier Martinez-Urrutia, Peru Fernandez de Arroiabe, MiguelRamirez, Manex Martinez-Agirre, M.Mounir Bou-Ali, 2018. Contact angle measurement for LiBr aqueous solutions on different surface materials used in absorption systems - International Journal of Refrigeration, 95, pp 182-188
[2] D. P. Subedi, D. K. Madhup, A. K. Laghu, U. M Joshi and R. B. Tyata, 2008. Hydrophilization of low density polyethylene by dielectric barrier discharge - Journal of Science and Technology in the Tropics , 4, pp 73-77.
Best regards, Pierluigi Traverso
Contact angles depend on the surface of your subtract. It can strongly vary with roughness for example see doi:10.1088/1742-6596/739/1/012029.
So there is no "recommended" values even if those given by Pierluigi are in the good scale.
Best regards
Frédéric
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