Figure 3 | Scientific Reports

Figure 3

From: Development of hydrophobic paper substrates using silane and sol–gel based processes and deriving the best coating technique using machine learning strategies

Figure 3

(a,b) Contact angle on Ts1 and Ts2 dip coated samples; (c,d) Contact angle on Ti1 and Ti2 dip coated samples (Contact angle goniometer (DATA Physics OCA 15 EC); (e) water droplet getting absorbed on uncoated paper; (f) water droplet on Ti1 and Ti2 single dip coated paper; (g1,g2) hydrophobic coating on surface of glass or metals; (h1,h2) hydrophobic coating on cellulosic paper; (i) water droplets on single and multiple dip coated paper samples in Ti1.

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