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Water-based high-adhesion water-resistant paint and preparation method thereof

A water-resistant paint, water-based technology, applied in coatings, alginic acid coatings, epoxy resin coatings, etc., can solve the problems of paint film stability and aesthetic discount, environmental pollution, paint film peeling, etc., to achieve good water solubility and Stability, avoid oxidation or reduction, improve adhesion

Pending Publication Date: 2020-11-27
宋家豪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic solvent-based paints are the most widely used in the prior art, but this will cause great pollution to the environment during production and use, so water-based paints have become the first choice for consumers
However, there are still problems with the water resistance and adhesion of water-based paints after drying. For example, water-soluble solutes will absorb water again after the paint film dries, causing the paint film to fall off, resulting in greatly reduced stability and aesthetics of the paint film.

Method used

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  • Water-based high-adhesion water-resistant paint and preparation method thereof
  • Water-based high-adhesion water-resistant paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides a kind of preparation method of water-based high adhesion water-resistant paint comprising the following steps:

[0030] (1) Mix and react halogen salt, copper ion salt and sulfite according to the molar ratio of 2.8:1.5:1 for 1 hour, then add barium halide to the mixed solution and filter to remove the precipitate to obtain cuprous halide complex ion [CuX 2 ] - solution, to [CuX 2 ] - Add stabilizer to the solution for later use;

[0031] (2) the mass components are 20 parts of polyurethane resin, 30 parts of water-based acrylic resin, 15 parts of epoxy resin, 0.8 part of hydroxymethyl cellulose, 25 parts of monovalent alginate, 22 parts of water and stabilized [CuX 2 ] - The solutions are mixed and stirred evenly to obtain the water-based high adhesion water-resistant paint.

[0032] Wherein the halide salt, barium halide, cuprous halide complex ion [CuX 2 ] - The halogen element X in is a chlorine element; the valence of the cation in t...

Embodiment 2

[0035] The invention provides a kind of preparation method of water-based high adhesion water-resistant paint comprising the following steps:

[0036](1) Mix and react halogen salt, copper ion salt and sulfite according to the molar ratio of 3.5:2:1 for 2 hours, then add barium halide to the mixed solution and filter to remove the precipitate to obtain cuprous halide complex ion [CuX 2 ] - solution, to [CuX 2 ] - Add stabilizer to the solution for later use;

[0037] (2) the mass components are 32 parts of polyurethane resin, 38 parts of water-based acrylic resin, 22 parts of epoxy resin, 4 parts of hydroxymethyl cellulose, 33 parts of monovalent alginate, 26 parts of water and stabilized [CuX 2 ] - The solutions are mixed and stirred evenly to obtain the water-based high adhesion water-resistant paint.

[0038] Wherein the halide salt, barium halide, cuprous halide complex ion [CuX 2 ] - The halogen element X in is a chlorine element; the valence of the cation in the ...

Embodiment 3

[0041] The invention provides a kind of preparation method of water-based high adhesion water-resistant paint comprising the following steps:

[0042] (1) Mix and react halogen salt, copper ion salt and sulfite according to the molar ratio of 3.2:1.8:1 for 1.4 hours, then add barium halide to the mixed solution and filter to remove the precipitate to obtain the cuprous halide complex ion [CuX 2 ] - solution, to [CuX 2 ] - Add stabilizer to the solution for later use;

[0043] (2) the mass components are 26 parts of polyurethane resin, 32 parts of water-based acrylic resin, 20 parts of epoxy resin, 1.6 parts of hydroxymethyl cellulose, 28 parts of monovalent alginate, 25 parts of water and stabilized [CuX 2 ] - The solutions are mixed and stirred evenly to obtain the water-based high adhesion water-resistant paint.

[0044] Wherein the halide salt, barium halide, cuprous halide complex ion [CuX 2 ] - The halogen element X in is a chlorine element; the valence of the cat...

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Abstract

The invention discloses a preparation method of water-based high-adhesion water-resistant paint. The preparation method comprises the following steps: (1) mixing halide salt, copper ion salt and sulfite according to a molar ratio of (2.8-3.5): (1.5-2): 1 to react for 1-2 hours, adding barium halide into the mixed solution to react, filtering to remove precipitate to obtain a cuprous halide complexion [CuX2]-solution, and adding a stabilizer into the [CuX2]-solution for later use; (2) mixing 20-32 parts of polyurethane resin, 30-38 parts of water-based acrylic resin, 15-22 parts of epoxy resin, 0.8-4 parts of hydroxymethyl cellulose, 25-33 parts of monovalent alginate, 22-26 parts of water and a [CuX2]-solution containing a stabilizer, and uniformly stirring to obtain the water-based high-adhesion water-resistant paint. The preparation process is simple, convenient and rapid, the adhesive force grade of the prepared water-based high-adhesion water-resistant paint is zero, the adhesionperformance is excellent, the minimum surface drying time is 7 min, and the highest water resistance can reach 300 h without abnormality.

Description

technical field [0001] The invention relates to the technical field of water-based paint, in particular to a water-based high-adhesion water-resistant paint and a preparation method thereof. Background technique [0002] Paint is a mixed paint that can adhere to the surface of the substrate and play the role of protection, flame retardancy, decoration, etc. With the improvement of people's living standards, the requirements for paint are gradually increasing, such as environmental protection and adhesion issues. The organic solvent-based paint in the prior art is the most widely used, but it will cause great pollution to the environment in the process of production and use, so water-based paint has become the first choice of consumers. However, there are still problems with the water resistance and adhesion of water-based paints after drying. For example, water-soluble solutes will absorb water again after the paint film dries and cause the paint film to fall off, resulting ...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D175/04C09D163/00C09D105/04C09D7/61C09D7/65C09D7/20
CPCC09D133/04C09D7/61C09D7/65C09D7/20C08L2205/035C08L75/04C08L63/00C08L5/04C08L1/284C08K3/16
Inventor 宋家豪
Owner 宋家豪
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