CN102516863A - Water dispersible environmentally-friendly nanometer structure automotive finish paint and preparation method thereof - Google Patents

Water dispersible environmentally-friendly nanometer structure automotive finish paint and preparation method thereof Download PDF

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Publication number
CN102516863A
CN102516863A CN2011103730572A CN201110373057A CN102516863A CN 102516863 A CN102516863 A CN 102516863A CN 2011103730572 A CN2011103730572 A CN 2011103730572A CN 201110373057 A CN201110373057 A CN 201110373057A CN 102516863 A CN102516863 A CN 102516863A
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water
dispersion
polymer emulsion
pigment
environmentally friendly
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陈广义
张万喜
魏志勇
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Dalian University of Technology
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Dalian University of Technology
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Abstract

The invention relates to water dispersible environmentally-friendly nanometer structure automotive finish paint and a preparation method thereof and belongs to the technical field of production of coating. The finish paint consists of water dispersible nanometer polymer emulsion with a grain size of below 100 nanometers, deionized water, a pigment, an inert antirust pigment, an active antirust pigment, a filler, an aid and the like. The water dispersible nanometer polymer emulsion with a grain size of below 100 nanometers consists of hydrophilic acrylate copolymer, hydrophobic polymer, waterproof liquid and deionized water, wherein the hydrophobic polymer is one of polyurethane, unsaturated fatty acid or dry oil-improved polyurethane. The invention has the beneficial effects that the water dispersible environmentally-friendly nanometer structure automotive finish paint has the characteristics of safety, environment friendliness and innocuity; and meanwhile, a formed paint film is very compact, and the water resistance and the protection and decoration effect of formed paint film achieve or exceed those of traditional oily automotive finish paint. The water-dispersible environmentally-friendly nanometer structure automotive finish paint is widely applied to waterborne automotive coating as well as the coating industry, thereby having great application value and market prospect.

Description

Environmentally friendly nanostructure automobile finish of a kind of water-dispersion and preparation method thereof
Technical field
The invention belongs to the coating material production technical field, be specifically related to environmentally friendly nanostructure automobile finish of a kind of water-dispersion and preparation method thereof.
Background technology
Traditional automobile finish mainly is a solvent-borne type paint; Wherein contain a large amount of organic volatile (being about 50%); These organic volatiles can evaporate in the atmosphere in the preparation of automobile finish and coating process, not only contaminate environment and waste resource, and simultaneously also can serious harm human be healthy.Along with the enhancing of environmental consciousness and perfecting of environmental regulation, the use of volatile organic matter (VOC) and hazardous air pollutants (HAP) more and more is restricted in traditional solvent-borne type car paint, and water-borne coatings obtains increasing concern.
Car paint especially automobile finish has been represented the highest level of industrial coating, and painting dressing automobiles requires very high to the performance index of coating with finish paint, and general aqueous industrial coating can't match in excellence or beauty with solvent based coating, is difficult to reach performance requriements.At present domestic less about aqueous automobile finish paint patent report; Patent documentation (publication number: CN 101314685A) disclose a kind of aqueous automobile finish paint of all kinds; This coating system is a base material with aqueous polyester resin, vinyl resin, aminoresin; Be equipped with a certain proportion of color stuffing and auxiliary agent system, have certain rigidity, toughness, the reflection degree of depth, have certain environmental protection characteristics simultaneously.Patent documentation (publication number: CN101705052A) disclose a kind of baking water automobile paint of single component; This coating is body material with vinyl resin modified polyorganosiloxane emulsion; Have do not fire, free from environmental pollution, the characteristics of saving the energy; Simultaneously ground is had good sticking power, the shock-resistance and the resistance to bend(ing) of filming are good.Patent documentation (publication number: CN 102020917A) disclose a kind of aqueous dual-component acroleic acid polyurethane car paint and preparation method thereof.It is made up of A, two kinds of components of B, and the A component is made up of resin and auxiliary agent, and the B component is a solidifying agent, and the two mixing gets final product.This aqueous dual-component car paint has kept former hardness of filming, medium-resistance and salt spray resistance, and VOC content reduces greatly simultaneously.
Most crucial part is its main film forming substance in the coating system, promptly used emulsion system.The aqueous automobile paint of above-mentioned several kinds of patent reports; Though be all with water-based emulsion as main film forming substance; Have certain environmental-protecting performance, but because employed emulsion all is general conventional emulsion, the polymer emulsion particle diameter is big; Paint film compactness is poor, and protection and decorative effect all have a long way to go with traditional oiliness automobile finish.
Summary of the invention
The present invention is directed to the problems referred to above; Environmentally friendly nanostructure automobile finish of a kind of water-dispersion and preparation method thereof is provided; This aqueous automobile finish paint should have the characteristics of energy-conserving and environment-protective; Also should have the densification of filming, thermodynamics and mechanical stability height, protection and advantages such as decorate properties is good, good weatherability, can be suitable with traditional oiliness automobile finish.
Technical solution of the present invention is: the environmentally friendly nanostructure automobile finish of a kind of water-dispersion, and the constituent mass per-cent of its main raw material is: the particle diameter of 40-80% is less than the water dispersion nano polymer emulsion of 100nm, the pigment of 1-30%; The filler of 5-20%; The active rust-stabilising pigment of 0.1-2%, the inertia rust-stabilising pigment of 5-20%, the auxiliary agent of 0.2-8%; The pH regulator agent of 0.1-0.5%, all the other are deionized water; Wherein the water dispersion nano polymer emulsion is by removing organic solvent down vacuum and 100-200 ℃ behind the esters of acrylic acid proportional mixing of hydrophobic type polymkeric substance and hydrophilic; To mixture solid content more than or equal to 80%, process with the deionized water shear agitation that contains the pH regulator agent with Zhuo elder generation liquid then.
The solid ingredient of said water dispersion nano polymer emulsion is that mass percent is environmentally friendly acroleic acid polyurethane nanometer polymer emulsion of water-dispersion or the environmentally friendly siccative oil modified acrylic polyurethane of the water-dispersion nanometer polymer emulsion of 25-65%.
Above-mentioned particle diameter is made up of Yodo Sol GH 28, hydrophobic type polymkeric substance, tall and erect first liquid and the deionized water of hydrophilic less than the water dispersion nano polymer emulsion of 100nm.Wherein the CALCIUM ACRYLATE analog copolymer of hydrophilic is the polymkeric substance of vinyl monomer radical addition polymerization gained, and the hydrophobic type polymkeric substance is a kind of in the urethane of urethane and unsaturated fatty acids or siccative oil modification.
Above-mentioned particle diameter can be the environmentally friendly acroleic acid polyurethane nanometer polymer emulsion of water-dispersion or unsaturated fatty acids or siccative oil modified acrylic polyurethane nanometer polymer emulsion less than the polymer emulsion of 100nm nanometer, and the consumption of this emulsion in coating is 40-80%.
Above-mentioned pigment is selected from Rutile type Titanium Dioxide, carbon black, chrome yellow or phthalocyanine blue.
Above-mentioned inertia rust-stabilising pigment is selected from red iron oxide, iron oxide black or yellow oxide of iron.
Above-mentioned active rust-stabilising pigment is selected from aluminium triphosphate, zn phosphate or pure aluminium silicate.
Above-mentioned filler comprises kaolin, coarse whiting, wollastonite powder, talcum powder, mica powder, permanent white.
Above-mentioned pH regulator agent is selected from volatility amine.Like monoethanolamine, triethylamine, N.N-dimethylethanolamine.
Auxiliary agent comprises:
1, wetting agent: polyxyethylated alkylphenol.BYK-346 like German Bi Ke (BYK) company.
2, dispersion agent: ethylene copolymer salt.5040 dispersion agents like Henkel Corp..
3, skimmer: organic silicon modified by polyether.Like the BYK-019 that Bi Ke (BYK) company produces, BYK-020.
4, siccative: be the closure organic acid catalyst.BYK-catalyst 450 like Bi Ke company.
5, sanitas: be in the isothiazolinone derivatives one or more.Nordes C15 like the promise moral.
6, mould inhibitor: be in the benzimidazole ester class one or more.Nordes EPW like the promise moral.
7, thickening material: be in alkali swelling type ACRYLIC EMULSION class and the cellulose-type thickening material one or more.Like 1510 of Henkel.
The preparation method of the environmentally friendly nanostructure automobile finish of above-mentioned water-dispersion is following:
(1) according to the prescription consumption water dispersion nano polymer emulsion, wetting agent, dispersion agent, skimmer, sanitas, mould inhibitor, pH regulator agent are joined in the deionized water, in 400-800 rev/min dispersion machine, disperseed 5-15 minute;
(2) add pigment, filler according to formula ratio, in 800-1000 rev/min dispersion machine, disperseed 5-20 minute, be ground to fineness less than 20 μ m with sand mill then;
(3) add siccative by prescription, 500-1000 rev/min was stirred 5-10 minute down;
(4) add thickening material by prescription, 800-1000 rev/min is stirred 5-10 minute to homodisperse after-filtration, packing down.
The invention has the beneficial effects as follows:, solved the problems that general water-based industrial paint exists as automobile finish owing to adopted the nanometer polymer emulsion of particle diameter below 100nm as main film forming substance.
1, because the particle dia of nanometer polymer emulsion is very little, so the paint film that forms is very fine and close, water tolerance and protected decoration effect meet or exceed traditional oiliness automobile finish.
2, the surface tension of nanometer polymer emulsion is very low, so have fabulous perviousness, wettability, leveling characteristics and rheological.
3, the high-specific surface area that had of nanoemulsions particle has greatly strengthened the sticking power of paint vehicle to base material, and positions such as butt welded seam, iron mold can penetrate very dark.
4, the prepared environmentally friendly nanostructure automobile finish of water-dispersion of the present invention has safety, nontoxic characteristics, environment is not polluted, simultaneously healthy harmless to the workmen.
Embodiment
Of the present invention ten specific embodiments are seen table 1, but the present invention not only is confined to following examples.By the environmentally friendly nanostructure automobile finish of water-dispersion of said components preparation, its performance is listed in table 2.
In table 1:
Emulsion 1 is the water-dispersion acroleic acid polyurethane nanometer polymer emulsion of particle diameter less than 100nm, and it is by hydrophilic CALCIUM ACRYLATE analog copolymer, hydrophobic urethane, and tall and erect first liquid and deionized water are formed.
Emulsion 2 is particle diameter acroleic acid polyurethane nanometer polymers less than the water-dispersion siccative oil modification of 100nm, and it is by hydrophilic CALCIUM ACRYLATE analog copolymer, hydrophobic siccative oil modified polyurethane, and tall and erect first liquid and deionized water are formed.
Embodiment 1
Take by weighing 50% nanometer polymer emulsion 1; 0.2% wetting agent, 0.6% dispersion agent, 0.02% skimmer; 0.3% pH regulator agent; 0.15% sanitas, 0.15% mould inhibitor and 10.58% deionized water join in the paint mixing tank, under 400-800 rev/min dispersing speed, disperse 10 minutes.Add 15% white titanium pigment then, 10% iron oxide black, 4% mica powder, 4% permanent white, 0.5% zn phosphate disperseed 15 minutes under 800 rev/mins dispersing speed.Be ground to fineness less than 60 μ m with sand mill then.Add 3% siccative by prescription, 800 rev/mins were stirred 5 minutes down, added 1.5% thickening material at last, and it is qualified to transfer to viscosity, with the filtration of 100 mesh filter screens, pack.
Embodiment 6
Take by weighing 60% nanometer polymer emulsion 2; 0.2% wetting agent, 0.4% dispersion agent, 0.02% skimmer; 0.2% pH regulator agent; 0.1% sanitas, 0.05% mould inhibitor and 10.78% deionized water join in the paint mixing tank, under 400-800 rev/min dispersing speed, disperse 10 minutes.Add 10% white titanium pigment then, 5% iron oxide black, 2% talcum powder, 5% mica powder, 3% permanent white, 0.25% zn phosphate disperseed 15 minutes under 800 rev/mins dispersing speed.Be ground to fineness less than 60 μ m with sand mill then.Add 2% siccative by prescription, 800 rev/mins were stirred 5 minutes down, added 1% thickening material at last, and it is qualified to transfer to viscosity, with the filtration of 100 mesh filter screens, pack.
Table 1: component of the present invention is formed embodiment 1-10
Figure BDA0000110877460000051
Table 2: the performance index of the environmentally friendly nanostructure automobile finish of water-dispersion that makes by prescription
Figure BDA0000110877460000061

Claims (4)

1. environmentally friendly nanostructure automobile finish of water-dispersion, it is characterized in that: the constituent mass per-cent of its main raw material is: the particle diameter of 40-80% is less than the water dispersion nano polymer emulsion of 100nm, the pigment of 1-30%; The filler of 5-20%; The active rust-stabilising pigment of 0.1-2%, the inertia rust-stabilising pigment of 5-20%, the auxiliary agent of 0.2-8%; The pH regulator agent of 0.1-0.5%, all the other are deionized water; Wherein the water dispersion nano polymer emulsion is by removing organic solvent down vacuum and 100-200 ℃ behind the esters of acrylic acid proportional mixing of hydrophobic type polymkeric substance and hydrophilic; To mixture solid content more than or equal to 80%, process with the deionized water shear agitation that contains the pH regulator agent with Zhuo elder generation liquid then.
2. the environmentally friendly nanostructure automobile finish of a kind of water-dispersion according to claim 1 is characterized in that: the solid ingredient of said water dispersion nano polymer emulsion is that mass percent is environmentally friendly acroleic acid polyurethane nanometer polymer emulsion of water-dispersion or the environmentally friendly siccative oil modified acrylic polyurethane of the water-dispersion nanometer polymer emulsion of 25-65%.
3. the environmentally friendly nanostructure automobile finish of a kind of water-dispersion according to claim 1, it is characterized in that: said pigment is selected from Rutile type Titanium Dioxide, carbon black, chrome yellow or phthalocyanine blue; Said inertia rust-stabilising pigment is selected from red iron oxide, iron oxide black or yellow oxide of iron; Said active rust-stabilising pigment is selected from aluminium triphosphate, zn phosphate or pure aluminium silicate; Said filler comprises kaolin, coarse whiting, wollastonite powder, talcum powder, mica powder, permanent white; Said auxiliary agent comprises dispersion agent, wetting agent, skimmer, sanitas, mould inhibitor, siccative and thickening material.
4. the preparation method of the environmentally friendly nanostructure automobile finish of a kind of water-dispersion according to claim 1, it is characterized in that: it comprises the following steps:
(1) according to the prescription consumption water dispersion nano polymer emulsion, wetting agent, dispersion agent, skimmer, sanitas, mould inhibitor, pH regulator agent are added in the deionized water, in 400-800 rev/min dispersion machine, disperseed 5-15 minute;
(2) add pigment, filler according to formula ratio, in 800-1000 rev/min dispersion machine, disperseed 5-20 minute, be ground to fineness less than 20 μ m with sand mill then;
(3) add siccative by prescription, 500-1000 rev/min was stirred 5-10 minute down;
(4) add thickening material by prescription, 800-1000 rev/min is stirred 5-10 minute to homodisperse after-filtration, packing down.
CN2011103730572A 2011-11-22 2011-11-22 Water dispersible environmentally-friendly nanometer structure automotive finish paint and preparation method thereof Pending CN102516863A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103788858A (en) * 2012-11-05 2014-05-14 江西新体科技有限公司 Colored silicon PU (Polyurethane) waterborne field topcoat and preparation method thereof
CN104098863A (en) * 2014-05-21 2014-10-15 广州威迪仕汽车用品有限公司 High quality water-based automotive chassis glue and making method thereof
CN105331222A (en) * 2015-12-09 2016-02-17 夏百庆 Hydrophilic automobile paint
CN105331272A (en) * 2015-12-09 2016-02-17 夏百庆 Anti-aging self-cleaning automobile coating
CN105348964A (en) * 2015-12-09 2016-02-24 夏百庆 Intelligent paint
CN105385328A (en) * 2015-12-09 2016-03-09 夏百庆 Weathering-resistant and waterproof automobile paint
CN105440834A (en) * 2015-12-09 2016-03-30 夏百庆 Ice-hanging resistant automobile coating
CN106118315A (en) * 2016-06-30 2016-11-16 广西梧州龙鱼漆业有限公司 Aqueous industrial height finish coat varnish and preparation method thereof
CN107298933A (en) * 2017-06-19 2017-10-27 靖江康爱特环境工程有限公司 A kind of production technology of aqueous, environmental protective anticorrosive paint
CN109796866A (en) * 2019-02-14 2019-05-24 天津通用科技有限公司 A kind of ground waterproof coating and preparation method thereof
CN112322023A (en) * 2020-11-23 2021-02-05 浙江锦润生物科技有限公司 Environment-friendly plastic additive and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466286A (en) * 1994-05-27 1995-11-14 E. I. Du Pont De Nemours And Company Stable automotive aqueous metallic-flake tint dispersion
CN1431264A (en) * 2003-01-21 2003-07-23 张万喜 Moisture dispersion and environment friendly type nano structured industry paint and its producing technique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466286A (en) * 1994-05-27 1995-11-14 E. I. Du Pont De Nemours And Company Stable automotive aqueous metallic-flake tint dispersion
CN1431264A (en) * 2003-01-21 2003-07-23 张万喜 Moisture dispersion and environment friendly type nano structured industry paint and its producing technique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103788858A (en) * 2012-11-05 2014-05-14 江西新体科技有限公司 Colored silicon PU (Polyurethane) waterborne field topcoat and preparation method thereof
CN104098863A (en) * 2014-05-21 2014-10-15 广州威迪仕汽车用品有限公司 High quality water-based automotive chassis glue and making method thereof
CN105331222A (en) * 2015-12-09 2016-02-17 夏百庆 Hydrophilic automobile paint
CN105331272A (en) * 2015-12-09 2016-02-17 夏百庆 Anti-aging self-cleaning automobile coating
CN105348964A (en) * 2015-12-09 2016-02-24 夏百庆 Intelligent paint
CN105385328A (en) * 2015-12-09 2016-03-09 夏百庆 Weathering-resistant and waterproof automobile paint
CN105440834A (en) * 2015-12-09 2016-03-30 夏百庆 Ice-hanging resistant automobile coating
CN106118315A (en) * 2016-06-30 2016-11-16 广西梧州龙鱼漆业有限公司 Aqueous industrial height finish coat varnish and preparation method thereof
CN107298933A (en) * 2017-06-19 2017-10-27 靖江康爱特环境工程有限公司 A kind of production technology of aqueous, environmental protective anticorrosive paint
CN109796866A (en) * 2019-02-14 2019-05-24 天津通用科技有限公司 A kind of ground waterproof coating and preparation method thereof
CN112322023A (en) * 2020-11-23 2021-02-05 浙江锦润生物科技有限公司 Environment-friendly plastic additive and preparation method thereof

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Application publication date: 20120627