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A water-based coating with high weather resistance

A water-based coating and weather resistance technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor coating dispersion and poor weather resistance, and achieve excellent optical resistance, improved water resistance, and improved corrosion resistance. Effect

Inactive Publication Date: 2016-03-16
BLUESTAR CHENGDU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of poor paint dispersion and low weather resistance in the prior art, and proposes a water-based paint with high weather resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A red water-based paint with high weather resistance, comprising the following raw materials in parts by weight: 30 parts of polyurethane resin, 10 parts of polystyrene-acrylic acid ester copolymer emulsion, 15 parts of kaolin, 0.5 part of iron oxide red, 0.1 part of borax, UV absorbing UVP-3270.5 parts, light stabilizer 7440.5 parts, antioxidant 30100.5 parts, defoamer HT65201 parts, dispersant 0.1 parts, emulsifier 0.4 parts, ammonia water 0.3 parts, polytetrafluoroethylene 5 parts and water 25 parts.

[0014] The dispersant can be one or more of polyoxyethylene alkylphenyl ether, dispersant 5040, and dispersant HT-5000.

[0015] The emulsifier is one of polyacrylamide, xanthan gum XG, polymeric carboxylate polyacrylic acid, alanine type, phenol formaldehyde condensate sulfonate.

[0016] The preparation method is as follows: After weighing the various raw materials required, add the polyurethane resin and polystyrene-acrylate copolymer emulsion into the stirrer and s...

Embodiment 2

[0018] A water-based coating with high weather resistance, comprising the following raw materials in parts by weight: 30 parts of polyurethane resin, 15 parts of polystyrene-acrylate copolymer emulsion, 20 parts of kaolin, 0.8 part of iron pigment, 0.3 part of borax, and ultraviolet absorber UVP-3271 parts, light stabilizer 7440.5 parts, antioxidant 30100.8 parts, defoamer HT65200.5 parts, dispersant 50400.18 parts, emulsifier 0.6 parts, ammonia water 0.7 parts, polytetrafluoroethylene 6 parts and water 35 parts.

[0019] Described emulsifier is the mixture of pure sodium lauryl sulfate and polyoxyethylene monostearate, and its mixing ratio is 1:2.

[0020] Its preparation method is with embodiment 1.

Embodiment 3

[0022] A water-based paint with high yellow weather resistance, comprising the following raw materials in parts by weight: 45 parts of polyurethane resin, 15 parts of polystyrene-acrylate copolymer emulsion, 25 parts of kaolin, 3 parts of iron oxide yellow, 0.8 part of borax, ultraviolet absorbing Agent UVP-3271 parts, light stabilizer 7441 parts, antioxidant 30102 parts, defoamer HT65202 parts, dispersant 2.5 parts, emulsifier 1 part, ammonia water 1 part, polytetrafluoroethylene 57 and water 45 parts.

[0023] The dispersant can be one or more of polyoxyethylene alkylphenyl ether, dispersant 5040, and dispersant HT-5000.

[0024] Described emulsifier is the mixture of pure sodium lauryl sulfate and polyoxyethylene monostearate, and its mixing ratio is 1:1.

[0025] Its preparation method is with embodiment 1.

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Abstract

The invention relates to a water-based paint with high weatherability. The paint comprises the following raw materials by weight: 40-60 parts of a mixture of polyurethane resin and polystyrene-acrylate copolymer emulsion, 15-25 parts of kaolin, 0.5-3 parts of an iron series pigment, 0.1-0.8 part of borax, 0.5-2 parts of an anti-aging agent, 0.5-2 parts of antioxidant 3010, 0.5-3 parts of a defoaming agent HT6520, 0.1-3 parts of a dispersant, 0.1-1 part of an emulsifier, 0.1-1 part of ammonia, 5- 8 parts of PTFE and 25-50 parts of water; and the anti-aging agent is a mixture of a UV absorber UVP-327 and a light stabilizer 744 in a mixing proportion of 1-2:1. The invention mainly solves the technical problems of weak dispersion and weatherability of water-based paint in the prior art.

Description

technical field [0001] The invention relates to the field of water-based paint, in particular to a water-based paint with high weather resistance. Background technique [0002] With the increasing awareness of environmental protection, countries all over the world have successively formulated the limit standards and regulations for volatile organic compounds (VOC) emissions. Solvent-based coatings are an important source of VOC, which cause great pollution to the environment and great harm to the human body. At the same time, there are safety hazards such as flammability and explosion in construction, storage, and transportation. Water-based paint has the characteristics of green, energy saving, safety and convenient function, and has been developed rapidly in all countries in the world. As a pure environmental protection product diluted with water, water-based paint has the characteristics of low formaldehyde and low aromatic hydrocarbons compared with traditional solvent-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D175/04C09D7/12
Inventor 刘咏梅孙潜余海燕
Owner BLUESTAR CHENGDU NEW MATERIALS
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