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Waterborne polyurethane-polyacrylate resin as well as preparation method and application thereof

A water-based polyurethane and polyacrylate technology, used in coatings, metal-free paints, etc., can solve problems such as poor stone-strike resistance of paint films, and achieve improved stone-strike resistance, good solvent responsiveness, and excellent The effect of stone resistance

Active Publication Date: 2021-01-05
中山大桥化工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-based polyurethane resin has the advantages of low VOC content and environmental protection. Polyacrylate resin has the characteristics of sufficient supply of raw materials and low price. The anti-stone chip performance of the film is not good, so it is urgent to develop a resin that can improve the anti-stone chip performance of the water-based metallic glitter paint film for automobiles.

Method used

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  • Waterborne polyurethane-polyacrylate resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of aqueous polyurethane-polyacrylate resin, comprises the raw material of following parts by weight:

[0037] Waterborne polyurethane prepolymer: 403 parts;

[0038] Tert-butyl hydroperoxide: 3 parts;

[0039] Methyl methacrylate: 12 parts;

[0040] Divinylbenzene: 2 parts;

[0041] Ethyl acrylate: 10 parts;

[0042] Butyl methacrylate: 15 parts;

[0043] Wherein, described aqueous polyurethane prepolymer comprises the raw material of following parts by weight:

[0044] Saturated polyester diol: 30 parts;

[0045] Hexamethylene diisocyanate: 15 parts;

[0046] Isophorone diisocyanate: 15 parts;

[0047] Methyl isobutyl ketone: 15 parts;

[0048] Dimethylolbutyric acid: 8 parts;

[0049] Glycerol: 3 parts;

[0050] Linoleic acid: 3 parts;

[0051] Organic bismuth: 2 parts;

[0052] 1.6-hexanediol: 8 parts;

[0053] Acrylamide: 3 parts;

[0054] Styrene: 26 parts:

[0055] Lauryl acrylate: 10 parts;

[0056] Glycidyl methacrylate: 6 parts;

[0057]...

Embodiment 2

[0064] A kind of aqueous polyurethane-polyacrylate resin, comprises the raw material of following parts by weight:

[0065] Waterborne polyurethane prepolymer: 351 parts;

[0066] Lauroyl peroxide: 3 parts;

[0067] Butyl methacrylate: 16 parts;

[0068] Diacetone acrylamide: 3 parts;

[0069] Ethyl acrylate: 10 parts;

[0070] Wherein, described aqueous polyurethane prepolymer comprises the raw material of following parts by weight:

[0071] Unsaturated polycarbonate diol: 32 parts;

[0072] Cyclohexane dimethylene diisocyanate: 25 parts;

[0073] Hexamethylene diisocyanate trimer: 2 parts;

[0074] Butanone: 15 parts;

[0075] Polyethylene glycol: 15 parts;

[0076] Trimethylolpropane monoallyl ether: 8 parts;

[0077] Soybean oleic acid: 2 parts;

[0078] Tin dilaurate: 2 parts;

[0079] Hexamethylenediamine: 5 parts;

[0080] Lauryl acrylate: 5 parts;

[0081] n-butyl acrylate: 18 parts:

[0082] Styrene: 12 parts;

[0083] Tert-butyl acrylate: 6 parts;

[...

Embodiment 3

[0090] A kind of aqueous polyurethane-polyacrylate resin, comprises the raw material of following parts by weight:

[0091] Waterborne polyurethane prepolymer: 364.5 parts;

[0092] Azobisisobutyronitrile: 5 parts;

[0093] Lauryl acrylate: 5 parts;

[0094] Ethyl acrylate: 3 parts;

[0095] Methyl methacrylate: 20 parts;

[0096] Wherein, described aqueous polyurethane prepolymer comprises the raw material of following parts by weight:

[0097] Saturated polycarbonate diol: 28 parts;

[0098] Tetramethylxylylene diisocyanate: 15 parts;

[0099] Diphenylmethane diisocyanate: 15 parts;

[0100] Butyl acetate: 13 parts;

[0101] 1. Sodium 4-butanediol-2-sulfonate: 10 parts;

[0102] Glycidyl tertiary carbonate: 3 parts;

[0103] Pentaerythritol: 2 parts;

[0104] Dibutyl tin acetate: 3.5 parts;

[0105] 1.4-butanediol: 10 parts;

[0106] Methyl methacrylate: 15 parts;

[0107] Butyl methacrylate: 10 parts:

[0108] Cyclohexyl acrylate: 5 parts;

[0109] 2-hydroxye...

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Abstract

The invention discloses waterborne polyurethane-polyacrylate resin, which is mainly obtained by reaction of a waterborne polyurethane prepolymer, an acrylic monomer and an initiator, wherein the waterborne polyurethane prepolymer is obtained by reacting a polyol prepolymer, an isocyanate monomer, a solvent, a hydrophilic monomer, a functional monomer, a catalyst, a chain extender, an acrylic monomer and an organic base. The waterborne polyurethane polyacrylate resin has extremely low VOC content and is green and environment-friendly, and meanwhile, waterborne metal flashing paint prepared fromthe waterborne polyurethane polyacrylate resin has excellent stone chip resistance after film formation.

Description

technical field [0001] The invention belongs to the technical field of water-based coatings, in particular to a water-based polyurethane-polyacrylate resin and its preparation method and application. Background technique [0002] In recent years, with the continuous improvement of national environmental protection requirements, water-based automotive coatings have become the future development direction, whether it is the medium coating, color paint layer or varnish layer, all are changing to water-based. Compared with traditional solvent-based systems, water-based paints have many advantages, such as low VOC content, reduced process flow, energy saving and emission reduction, and cost reduction. Related water-based resins have also been developed rapidly. Among them, water-based polyurethane resin and polyacrylate resin are two resins that have attracted much attention. Water-based polyurethane resin has the advantages of low VOC content and environmental protection. Poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F220/18C08F220/58C08F220/14C08F212/36C09D151/08C09D5/38
CPCC08F283/008C09D151/08C09D5/38C08K2003/0812C08F220/14C08F220/1802C08F220/1804C08F212/36C08F220/58C08F220/1812C08K3/08
Inventor 王璐
Owner 中山大桥化工集团有限公司
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