Super-hydrophobic surfaces made from Teflon.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 32900060.
- Also identified by DOI 10.1039/b613947g.
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Abstract
Super-hydrophobic surfaces are typically made by introducing roughness into a surface made from a water-repellent material. Water easily rolls or bounces off these surfaces, carrying away most surface contaminants. We describe here a simple low-cost approach using a commercially available Teflon suspension for forming an ultrahydrophobic coating. By using sacrificial colloids, a surface with an array of well-defined depressions is created, giving rise to a very low wettability by water, showing a contact angle of ≈170°.