Hydrophobic surfaces refer to the surfaces with a contact angle θ = 90-150°, which reduce or eliminate the adhesion of water, biological fluids, DNA and most other contaminants (Figure 1).
Figure 1. Effect comparison diagram between uncoated (up) and coated (down).
Figure 2. Application examples that usually need hydrophobic coatings.
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1. Xue Y. Chuangchao S. A facile approach to fabricate superhydrophobic coatings on porous surfaces using cross-linkable fluorinated emulsions. Chemical Engineering Journal. 2017, 330(15) 202-212.