A photothermal superhydrophobic coating and its preparation method

By preparing a photothermal superhydrophobic coating using modified fluorosilicone resin and nano-scale carbon-based materials, the problems of limited performance and insufficient corrosion resistance of existing coatings have been solved. This achieves a multifunctional integrated effect of photothermal anti-icing and superhydrophobic de-icing, and is suitable for various substrates.

CN119264758BActive Publication Date: 2026-09-01SHANDONG NORTH MODERN CHEM IND
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Patent Information

Application Number
CN202411382672.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2026-09-01
Estimated Expiration
2044-09-30

AI Technical Summary

Technical Problem

Existing superhydrophobic coatings suffer from limitations in anti-icing performance, including limited properties, insufficient corrosion resistance, and insufficient abrasion resistance. Furthermore, traditional de-icing methods are inefficient and energy-intensive, making it difficult to combine non-contact photothermal anti-icing with superhydrophobic effects.

Method used

A photothermal superhydrophobic coating composed of modified fluorosilicone resin, modified nanoscale carbon-based materials, and polypyrrole resin was prepared. The coating has photothermal anti-icing and superhydrophobic properties by forming a micro-nano structure through fluorosilicone block polymer and benzoxazine monomer, combined with the photothermal conversion properties of carbon-based materials.

Benefits of technology

It achieves multi-functional integration of coatings, possessing properties such as photothermal anti-icing, superhydrophobic de-icing, and long-lasting anti-corrosion. It has strong adhesion, is easy to operate, and is suitable for various substrates, reducing reliance on multiple coatings and the cost of repeated construction.

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Abstract

This invention discloses a photothermal superhydrophobic coating and its preparation method, relating to the field of hydrophobic coating technology. It comprises a modified fluorosilicone resin solution, modified nanoscale carbon-based materials, functional additives, polypyrrole resin, adhesion promoters, etc. The invention uses polysiloxane and fluorinated monomers to polymerize a fluorosilicone block polymer, and introduces benzoxazine monomers into the structure as an anti-corrosion resin matrix to prepare a modified fluorosilicone resin solution. A photothermal layer is introduced by adding modified carbon-based materials, and a sprayable superhydrophobic coating is prepared by combining hydrophobic silica and filler additives. Furthermore, the coating utilizes the properties of carbon black and carbon nanotubes converting their own lattice vibrations into light energy, the hydrophobicity of nano-silica, and the addition of polypyrrole to the resin system to further ensure the photothermal performance of the coating. The surface energy of fluorosilicone elements and the ring-opening polymerization of benzoxazine resin itself give the coating excellent corrosion resistance, wear resistance, and weather resistance.
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