Fluorine-free antibacterial transparent superhydrophobic coating, preparation method and application thereof

Abstract

The present invention is directed to the problems existing in the prior art, and provides a fluorine-free antibacterial transparent superhydrophobic coating and a preparation method thereof. The fluorine-free antibacterial transparent superhydrophobic coating provided by the invention comprises inorganic/organic nanoparticles modified by quaternary ammonium salt silane coupling agent, a thermoplastic elastomer and an organic solvent. The preparation method has the advantages of simple process, mild conditions and no complicated equipment. The coating can be applied to various substrates by spraying, dipping, etc., including hard substrates such as glass and polymer films, and soft substrates such as textiles and rubber. The resulting superhydrophobic coating has excellent mechanical/physical/chemical stability, antibacterial properties and superhydrophobicity.

Description

Technical field [0001] The invention relates to a paint and a preparation method and application thereof, in particular to a fluorine-free antibacterial transparent superhydrophobic paint, a preparation method and application thereof. Background technique [0002] A superhydrophobic surface refers to a surface with a water contact angle greater than 150° and a rolling angle less than 10°. It usually has two characteristics including a micro / nano-scale surface structure and a low surface energy chemical composition. Due to the huge application of superhydrophobic surface in self-cleaning, anti-icing, drag reduction, oil-water separation, etc., it has received great attention from materials researchers. Many methods including template method, coating method, etching method, photolithography method, plasma treatment method have been reported for preparing superhydrophobic surface, but most of the superhydrophobic surface prepared by these methods does not have enough strength to res...

AI Technical Summary

Problems solved by technology

However, its preparation process is complicated and there are many steps

[0006] In addition, with the rapid development of stretchable and stretchable functional materials such as flexible electronic devices, sensors, textiles, and filter membranes, superhydrophobic surfaces can The stability of the hydrophobic properties of

Tesler et al. (Nature Communication, 2015, 6, 8649.) used electrodeposition to deposit nanoporous tungsten oxide onto the steel surface, and prepared a superhydrophobic steel material that can withstand 10 times of 180° bending deformation without losing superhydrophobic properties. The preparation process requires complex equipment and special substrates, which is not universal

[0007] Although a large number of methods and processes have been used for the development of mechanically stable superhydrophobic surfaces, the existing preparation methods have problems such as harsh conditions, complicated preparation process, not enough green environmental protection, single choice of substrate, and limited application range.

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