A kind of industrial water-based paint coating and using method thereof

A water-based paint and coating technology, applied in epoxy resin coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as pollution and discharge, and achieve the effect of ensuring anti-corrosion and anti-rust, taking into account the appearance effect, and the best anti-rust effect.

Active Publication Date: 2022-07-19
重庆南方漆业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an industrial water-based paint coating, which can not only solve the problem of environmental pollution discharge, but also solve potential safety hazards; the performance can also meet the protection requirements of C4 and C5 coating standards

Method used

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  • A kind of industrial water-based paint coating and using method thereof
  • A kind of industrial water-based paint coating and using method thereof
  • A kind of industrial water-based paint coating and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The water-based epoxy primer of the present invention uses water as a dispersing medium, and is used after mixing the A component and the B component in a mass ratio of 7.5-9:1, thereby cross-linking and curing to form a film. Component B is a non-ionic, aqueous secondary dispersion curing agent for polyamide adducts.

[0019] The raw materials used in component A include: in parts by weight, waterborne epoxy resin 30-40, deionized water 10-30, dispersant 1-2, defoamer 0.1-0.3, filler 35-45, acrylic resin 3-10. Wetting and leveling agent 0.1-0.5, surfactant 0.1-0.5, low shear thickener 0.3-0.6 and medium shear thickener 0.1-0.3.

[0020] As a preference of the present invention, the water-based epoxy resin is a secondary dispersion of solid bisphenol A epoxy resin modified by solid 901 epoxy resin. The dispersing agent is polyacrylate, and the defoaming agent is a non-silicon polymerized defoaming agent or an acetylene glycol defoaming agent. The low shear thickener i...

Embodiment 2

[0027] The water-based aliphatic polyurethane topcoat of the present invention uses water as a dispersion medium, and the primary and secondary dispersions of hydroxyacrylic acid are mixed, cross-linked and cured with the water-based aliphatic isocyanate curing agent at a ratio of 5-7:1 to form a paint film.

[0028] The components of the water-based aliphatic polyurethane topcoat include: in parts by weight, 10-20 hydroxy acrylic primary dispersion resin, 40-50 hydroxy acrylic secondary dispersion resin, 10-30 deionized water, polyacrylate dispersant 1-2, non-silicon polymeric defoamer 0.1-0.3, filler 15-25, wetting and leveling agent 0.1-0.5, surfactant 0.1-0.5, polyurethane low shear thickener 0.2-0.5; polyurethane Medium shear thickener 0.1-0.3.

[0029] As a preference of the present invention, the water-based aliphatic polyurethane topcoat further includes 0.1-0.5 of a metal catalyst and 0.5-1 of a modified composite inorganic anti-settling thixotropic agent. The metal ...

Embodiment 3

[0033] According to the components and methods in Example 1 and Example 2, waterborne epoxy primer and waterborne aliphatic polyurethane topcoat were prepared respectively.

[0034] Waterborne epoxy primer: waterborne epoxy resin 38, deionized water 15, dispersant 1.5, defoamer 0.2, filler 38, acrylic resin 8, wetting and leveling agent 0.3, surfactant 0.3, metal catalyst 0.1, Rust agent 2, low shear thickener 0.5 and medium shear thickener 0.2.

[0035]Waterborne aliphatic polyurethane topcoat: hydroxyacrylic secondary dispersion resin 50, deionized water 10, polyacrylate dispersant 2, non-silicon polymeric defoamer 0.3, filler 20, hydroxyacrylic primary dispersion resin 18, Wetting and leveling agent 0.1-0.5, surfactant 0.5, metal catalyst 0.3, modified composite inorganic anti-settling thixotropic agent 1, polyurethane low shear thickener 0.2 and polyurethane medium shear thickener 0.1.

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Abstract

The invention discloses an industrial water-based paint coating, comprising a water-based epoxy primer and a water-based aliphatic polyurethane topcoat; the water-based epoxy primer includes the following components: in parts by weight, the water-based epoxy resin 30 ‑40, Deionized Water 10‑30, Dispersant 1‑2, Defoamer 0.1‑0.3, Filler 35‑45, Acrylic Resin 3‑10, Leveling Agent 0.1‑0.5, Surfactant 0.1‑0.5, Low Shear Shear force thickener 0.3‑0.6 and medium shear force thickener 0.1‑0.3; the water-based aliphatic polyurethane topcoat includes the following components: in parts by weight, hydroxy acrylic secondary dispersion resin 40-50, Deionized water 10-30, dispersant 1-2, defoamer 0.1-0.3, filler 15-25, hydroxy acrylic primary dispersion resin 10-20, wetting and leveling agent 0.1-0.5, surfactant 0.1- 0.5, low shear thickener 0.2-0.5 and medium shear thickener 0.1-0.3. The industrial water-based paint coating provided by the invention can not only solve the problem of environmental pollution and discharge, but also solve the safety problem; the performance can also meet the protection requirements of mechanical equipment in the field of heavy anti-corrosion.

Description

technical field [0001] The invention relates to an industrial water-based paint coating and a use method thereof, belonging to the technical field of water-based paint. Background technique [0002] Most of the mechanical equipment is made of metal, so it is necessary to apply anti-corrosion coatings on the surface of the mechanical equipment to avoid corrosion of the mechanical equipment. With the increasingly strict requirements for environmental protection, safety and occupational health, the application of water-based industrial paints has become an inevitable trend. However, most of the water-based industrial anti-corrosion coatings have poor serial coating performance, and it is difficult to make high-solid types. The sag phenomenon is very serious during spraying, the leveling is not good, and the film thickness of a single coating is too thin. If it is used on mechanical equipment It may wear and peel off quickly, and it does not protect the mechanical equipment wel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D133/00C09D175/04
CPCC09D163/00C09D5/002C09D175/04C08L33/00
Inventor 程刚刘泉
Owner 重庆南方漆业有限公司
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