High-temperature-resistant super-lyophobic micro-nano structure coating and preparation method thereof

By constructing a high-temperature resistant superhydrophobic micro/nano structure coating on the substrate surface, the problems of performance degradation and structural instability of traditional hydrophobic surfaces at high temperatures are solved, achieving good hydrophobic properties and structural stability at high temperatures, and enhancing the adhesion reliability and thermal stability of the coating.

CN122080772APending Publication Date: 2026-05-26XI AN JIAOTONG UNIV
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Patent Information

Application Number
CN202610522895.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional hydrophobic or superhydrophobic surfaces have limited heat resistance under high-temperature service conditions. Low surface energy modified components are prone to decomposition, and the micro-nano rough structures have insufficient bonding force with the matrix, resulting in rapid degradation of hydrophobic properties and structural instability.

Method used

A high-temperature resistant superhydrophobic micro/nano structure coating is adopted, including an adhesive underlayer and a functional surface layer. The adhesive underlayer contains phenyl silicone resin, and the functional surface layer contains superhydrophobic particles and carbon fiber shear tubes to form a hierarchical micro/nano structure. The superhydrophobic particles are inorganic-organic hybrid particles, and the carbon fiber shear tubes provide a micron-scale framework, which, combined with the phenyl silicone resin, provides the bonding effect.

Benefits of technology

It maintains good hydrophobic properties and structural stability in high-temperature environments, inhibits corrosion and deposition, extends service life, reduces the actual contact area between the liquid and the surface, and enhances the coating's adhesion reliability and thermal stability.

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Abstract

The invention provides a high-temperature-resistant super-lyophobic micro-nano structure coating and a preparation method thereof.The coating is constructed on the surface of a matrix and comprises a bonding bottom layer and a functional surface layer located on the surface of the bonding bottom layer; the bonding bottom layer contains phenyl silicone resin, the functional surface layer contains super-lyophobic particles, phenyl silicone resin and a carbon fiber shear tube, the carbon fiber shear tube forms a micron-scale skeleton structure, the super-lyophobic particles form a nano-scale coarse structure, and the carbon fiber shear tube and the super-lyophobic particles jointly form a hierarchical micro-nano structure. Super-lyophobic particles, phenyl silicone resin and a carbon fiber shear tube are synergistically constructed on the surface of a matrix to form an inorganic and organic hybrid high-temperature-resistant super-lyophobic micro-nano structure coating, the super-lyophobic particles provide a high-temperature-resistant lyophobic foundation, the phenyl silicone resin provides a high-temperature-resistant bonding effect, and the carbon fiber shear tube provides a structure enhancement effect; therefore, the obtained coating has relatively good thermal stability and structural stability, and can slow down performance degradation under the action of high temperature.
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