Super-hydrophobic nanocomposite coating with excellent mechanical stability and preparation method thereof

A nano-composite material and technology for stabilizing performance, applied in coatings, epoxy resin coatings, devices for coating liquids on surfaces, etc. It is not obvious and other problems, and achieves the effects of excellent mechanical toughening and interfacial hydrophobicity, excellent hydrophobicity and lubricating properties, high temperature resistance and low density.
CN114686076AActive Publication Date: 2022-07-01HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2022-07-01

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Abstract

The invention discloses a super-hydrophobic nano composite material coating with excellent mechanical stability and a preparation method of the super-hydrophobic nano composite material coating, and belongs to the technical field of preparation of super-hydrophobic composite coating materials. The super-hydrophobic nano composite material coating comprises a bottom film and a top film, the bottom film is an epoxy resin film layer doped with titanium dioxide and attached to the surface of a substrate, and the top film is an epoxy resin film layer doped with modified silicon dioxide and polymethylsilsesquioxane and located on the bottom film. The epoxy resin in the top film of the composite coating not only can coat micro / nano particles to prevent the micro / nano particles from falling off during long-term realization of a super-hydrophobic function, but also can form three-dimensional spatial crosslinking with the epoxy resin in the bottom coating, so that interface debonding of the upper coating and the lower coating is prevented, super-stable'welding 'of an interface is enhanced, and the service life of a super-hydrophobic coating system is prolonged.
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Description

technical field

[0001] The invention relates to a super-hydrophobic nano-composite material coating with excellent mechanical stability and a preparation method thereof, belonging to the technical field of preparation of super-hydrophobic composite coating materials. Background technique

[0002] A superhydrophobic surface refers to a material surface with a static contact angle between the surface and water greater than 150° and a dynamic rolling angle less than 10°. In general, the construction of superhydrophobic properties on the surface of materials is mainly achieved by reducing the free energy of the material surface and increasing the roughness of the material surface. There are three types of superhydrophobic models: the Young model shows that when a water droplet is in contact with the surface, the interface is the result of the Gibbs free energy equilibrium of the solid-liquid-gas three-phase system; the Wenzel model believes that water can completely penetrate in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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