Amphiphilic cross-linkable fluorosilicone resin, water-based coating and superamphiphobic coating prepared therefrom

Abstract

The invention belongs to the field of super-amphiphobic materials, and discloses amphiphilic crosslinkable fluorosilicon resin, a water-borne coating and a super-amphiphobic coating prepared through the water-based paint. The amphiphilic crosslinkable fluorosilicon resin is prepared by the means that hydrogen containing organic silicon A, the epoxy containing substance B, the fluorine containing substance C, modified silicon dioxide D and the hydrotropic substance E are mixed into a solvent, the mixture is added into a reaction kettle, inert gas is bubbled into the reaction kettle, the temperature is increased to 60-140 DEG C under the stirring condition, then the catalyst F is added, stirring is performed for 5-24 hours, and the reactant is precipitated into normal hexane or methyl alcohol; the amphiphilic crosslinkable fluorosilicon resin coating is dissolved in a aqueous-organic solvent, water is dropwise added into the maxture, so that the amphiphilic crosslinkable fluorosilicon resin coating is obtained; curing agent is added into the amphiphilic crosslinkable fluorosilicon resin water-borne coating, the mixture is stirred uniformly, then a base material is soaked into the amphiphilic crosslinkable fluorosilicon resin coating, or the amphiphilic crosslinkable fluorosilicon resin coating is sprayed on the surface of the base material, and drying operation is performed, so that the super-amphiphobic coating is obtained.

Description

technical field [0001] The invention belongs to the field of super-amphiphobic materials, and in particular relates to an amphiphilic cross-linkable fluorosilicone resin, a water-based coating and a super-amphiphobic coating prepared therefrom. Background technique [0002] As far as the current literature reports are concerned, most of the methods for constructing superamphiphobic materials are relatively complicated. With the development of super-amphiphobic materials, the process of preparing super-amphiphobic materials is increasingly pursuing simplification. Only by simplifying the process steps and reducing the cost of raw materials and processes can the industrialization of super amphiphobic materials be further advanced. [0003] But for now, the current super-amphiphobic coatings still have the following disadvantages: First, the process of constructing super-hydrophobic or super-amphiphobic coatings is complicated, generally requires multiple steps, and the source...

AI Technical Summary

Problems solved by technology

[0003] But for now, the current super-amphiphobic coatings still have the following disadvantages: First, the process of constructing super-hydrophobic or super-amphiphobic coatings is complicated, generally requires multiple steps, and the source of raw materials used is relatively expensive

Second, the constructed super-amphiphobic coating has no good mechanical properties, mainly because the super-amphiphobic coating has not been cross-linked with a strong cross-linking substance.

As a result, the durability of the super-amphiphobic effect is not obvious

Third, the application area is narrow, generally super-hydrophobic or super-amphiphobic coatings designed for a special surface

Third, expensive and toxic organic solvents, even fluorinated solvents, are used in the process of constructing super-amphiphobic coatings, which is obviously not conducive to the health of construction workers and also causes great harm to the environment

In recent years, in view of the poor durability of the current super-amphiphobic coating, the narrow application field and the need to use organic solvents in the use process, a variety of solutions have been proposed, and a number of invention patents have also been obtained.

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