Phase separation-induced superhydrophobic polylactic acid films.
basic_science · Level V
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- Record sourced from PubMed, PMID 31702749.
- Also identified by DOI 10.1039/c9sm01624d.
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Abstract
Superhydrophobic films that are simple, inexpensive, corrosion-resistant and multifunctional are in high demand for industrial applications. We propose a simple and economical phase separation method for fabricating superhydrophobic films using polylactic acid (PLA), nano-SiO2 and a mixture of good and poor solvents to construct a rough surface with a nano/microstructured morphology. The phase separation-induced superhydrophobic PLA/SiO2 composite film with a porous network structure has a water contact angle greater than 164°. This method can be applied to a variety of surfaces or used in large-scale industrial production. The fabricated superhydrophobic films may be applied in biological fields because PLA is a good biodegradable material.