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Phase separation-induced superhydrophobic polylactic acid films

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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.

Graphical abstract: Phase separation-induced superhydrophobic polylactic acid films

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Publication details

The article was received on 10 Aug 2019, accepted on 02 Nov 2019 and first published on 04 Nov 2019


Article type: Paper
DOI: 10.1039/C9SM01624D
Soft Matter, 2019, Advance Article

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    Phase separation-induced superhydrophobic polylactic acid films

    L. Zhong and X. Gong, Soft Matter, 2019, Advance Article , DOI: 10.1039/C9SM01624D

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