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Waterborne acrylate polyurethane finish paint and preparation method thereof

A technology of acrylic polyurethane and water-based isocyanate, which is applied in the field of water-based acrylic polyurethane topcoat and its preparation, which can solve the problems of low aging resistance, low temperature resistance, high content, etc., achieve strong adhesion, improve hardness and gloss high effect

Inactive Publication Date: 2019-07-23
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of the existing two-component water-based acrylic topcoat with high curing agent content, low toughness, low high temperature resistance, aging resistance and low wear resistance, the invention provides a water-based acrylic polyurethane topcoat and a preparation method thereof

Method used

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  • Waterborne acrylate polyurethane finish paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A waterborne acrylic polyurethane topcoat, comprising A component and B component;

[0032] Described A component comprises the component of following mass percentage:

[0033] Aqueous Hydroxy Acrylic Dispersion 60%,

[0034] Dimethylethanolamine 0.1%,

[0035] Co-solvent 2%,

[0036] Wetting and leveling agent 0.6%,

[0037] Graphene solution 3%,

[0038] UV absorber 3%,

[0039] Thickener 0.6%,

[0040] Defoamer 0.2%,

[0041] Dispersant 1%,

[0042] Titanium dioxide 25%,

[0043] Deionized water 4.5%;

[0044] Described B component comprises the component of following mass percentage:

[0045] Water-based isocyanate curing agent 90%,

[0046] Dipropylene glycol methyl ether acetate 10%;

[0047] Before use, component A and component B are stored separately. When in use, component A and component B are mixed according to the mass ratio of 10:1.

[0048] Among them, the water-based hydroxyacrylic acid dispersion uses Wanhua Chemical's A2033; the cosolvent is...

Embodiment 2

[0055] A waterborne acrylic polyurethane topcoat, comprising A component and B component;

[0056] Described A component comprises the component of following mass percentage:

[0057] Aqueous Hydroxy Acrylic Dispersion 62%,

[0058] Dimethylethanolamine 0.15%,

[0059] Co-solvent 2.5%,

[0060] Wetting and leveling agent 0.8%,

[0061] Graphene solution 2%,

[0062] UV absorber 2%,

[0063] Thickener 0.5%,

[0064] Defoamer 0.4%,

[0065] Dispersant 1.1%,

[0066] Titanium dioxide 15%,

[0067] Deionized water 13.55%;

[0068] Described B component comprises the component of following mass percentage:

[0069] Water-based isocyanate curing agent 85%,

[0070] Dipropylene glycol methyl ether acetate 15%;

[0071] Before use, component A and component B are stored separately. When in use, component A and component B are mixed according to the mass ratio of 11:1.

[0072] Among them, the water-based hydroxyacrylic acid dispersion uses A2033 of Wanhua Chemical; the co...

Embodiment 3

[0079] A waterborne acrylic polyurethane topcoat, comprising A component and B component;

[0080] Described A component comprises the component of following mass percentage:

[0081] Aqueous Hydroxy Acrylic Dispersion 65%,

[0082] Dimethylethanolamine 0.2%,

[0083] Co-solvent 3%,

[0084] Wetting and leveling agent 1%,

[0085] Graphene solution 1%,

[0086] UV absorber 1%,

[0087] Thickener 0.3%,

[0088] Defoamer 0.6%,

[0089] Dispersant 1.2%,

[0090] Titanium dioxide 10%,

[0091] Deionized water 16.7%;

[0092] Described B component comprises the component of following mass percentage:

[0093] Water-based isocyanate curing agent 80%,

[0094] Dipropylene glycol methyl ether acetate 20%;

[0095] Before use, component A and component B are stored separately. When in use, component A and component B are mixed according to the mass ratio of 12:1.

[0096] Among them, the water-based hydroxyacrylic acid dispersion uses Wanhua Chemical's A2033; the cosolvent...

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Abstract

The invention relates to the technical field of waterborne paint, and particularly discloses waterborne acrylate polyurethane finish paint and a preparation method thereof. The waterborne acrylate polyurethane finish paint comprises a component A and a component B, wherein the component A comprises waterborne hydroxyacrylic acid dispersions, a pH regulator, a cosolvent, a wetting leveling agent, agraphene solution, an ultraviolet absorber, a thickening agent, a defoaming agent, a dispersing agent, pigment and the balance of deionized water; the component B comprises a waterborne isocyanate curing agent and an environment-friendly solvent; a mass ratio of the component A to the component B is (10-12):1. The waterborne acrylate polyurethane finish paint has better weather fastness and wearresistance, can guarantee longer paint film protecting time of a vehicle, and particularly can protect the vehicle better under the condition of intense ultraviolet and in a frequent using and wearingprocess of the vehicle.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, in particular to a water-based acrylic polyurethane topcoat and a preparation method thereof. Background technique [0002] At present, the development of water-based coatings is relatively rapid, and high-performance coatings are sought after by the market, especially with the increasing number of various transportation vehicles, because such vehicles are mostly used for outdoor operations, the weather resistance and high temperature resistance of the paint film The performance requirements are high, and at the same time, there are certain requirements for the wear resistance of the paint film, so as to reduce the refurbishment of the vehicle and reduce the cost. [0003] However, the wear resistance and weather resistance of one-component water-based topcoats cannot meet the requirements of outdoor use. Therefore, two-component water-based acrylic topcoats have become a hot spot fo...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D7/61C09D7/63C09D7/65C09D7/20C08G18/67C08G18/73C08G18/75C08G18/79
CPCC09D175/14C09D5/18C09D7/61C09D7/63C09D7/65C09D7/20C08G18/6755C08G18/755C08G18/792C08G18/73C08G18/722C08K2003/2241C08L83/12C08K13/02C08K3/042C08K3/36C08K3/22
Inventor 宋利强王洁李幕英胡中源
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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