CN102559024A - Aqueous polyurethane heat reflection coating and application thereof - Google Patents
Aqueous polyurethane heat reflection coating and application thereof Download PDFInfo
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- CN102559024A CN102559024A CN2010106238636A CN201010623863A CN102559024A CN 102559024 A CN102559024 A CN 102559024A CN 2010106238636 A CN2010106238636 A CN 2010106238636A CN 201010623863 A CN201010623863 A CN 201010623863A CN 102559024 A CN102559024 A CN 102559024A
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Abstract
The invention relates to an aqueous polyurethane heat reflection coating and an application of the aqueous polyurethane heat reflection coating. The coating comprises a component A and a component B, wherein the component A comprises water, an aqueous polyurethane emulsion, a heat reflection pigment, a function filler, a wetting dispersant, a basis material wetting agent, a rheological agent, a defoaming agent, a thickening agent and a filler; and the component B comprises an isocyanate curing agent or a silane coupling agent. The aqueous polyurethane heat reflection coating has features of high heat reflection efficiency, strong adhesion and good corrosion prevention effect and meets the requirements of environmental protection. The aqueous polyurethane heat reflection coating is suitable for the surfaces of the steel structure, aluminum alloy, plastic, composite material or the like.
Description
Technical field
The present invention relates to the chemical industry paint field, be specifically related to a kind of aqueous polyurethane heat reflection coatings and uses thereof.
Background technology
The boats and ships steelwork has experienced phenolic boat hull paint, alkyd ship hull paint, chlorinated rubber ship hull paint, vinylformic acid ship hull paint, urethane ship hull paint several periods with ship hull paint.The paint film temperature tolerance of phenolic, alcohol acids coating is poor, chemical resistance is poor, though through phenol aldehyde modified, chlorinated rubber modification, means such as acrylic acid modified its performance is increased, but still difficulty satisfies actual needs.The chlorinated rubber ship hull paint has good patience and application property, but its solid content is low, needs high amounts of solvents during construction, and serious environment pollution does not meet environmental requirement.
The ship hull paint of heat emission function appearred having over past ten years; Like solvent-type acrylic ship hull paint, urethane ship hull paint, acrylic acid modified polyurethane coating (Chinese patent publication number: CN101550314A; Denomination of invention: ship hull paint polyurethane heat reflection ship hull coating), their performance had had large increase more in the past.But solvent based coating contains high amounts of solvents and toxic substance, and along with the raising of industrial expansion and environmental requirement, application will more and more be restricted.Therefore develop water-borne coatings, improve the performance of water-borne coatings, come effectively to substitute present solvent based coating, become a kind of trend.
The ultimate principle of heat reflection coatings is:
Be to reduce the solar heat reflection coating that internal temperature uses, should satisfy that height to visible light (380nm～780nm wavelength) and near infrared light (780nm～2500nm wavelength) reflects and the centering far infrared rays (high-amplitude of 2.5um～14um) is penetrated.
The leading indicator heat reflectivity of heat-reflective coating depends on the ratio of the refractive index of color stuffing and resin.Under the certain situation of the refractive index (1.45-1.50) of resin, its heat reflectivity depends primarily on the refractive index of color stuffing, the particle diameter of color stuffing, purity and coat-thickness, PVC value.The refractive index scope of color stuffing is generally 1.50-2.80.
The groundwork of developing heat reflection coatings of all kinds is: because carbon black to the specific absorption of solar heat up to 97%, reflectivity only 3%.In order to reach the used extra large grey heat reflection coatings of shell that is fit to the naval vessel, the emphasis of research just is how to replace carbon black.
Summary of the invention
The present invention adopts that organic and inorganic red, yellow, blue, white several kinds of colors are composite to be gone out black and replace carbon black.
The object of the invention is to provide a kind of and have excellent adhesive attraction, can reduce the surface temperature that is exposed to the equipment under the solar radiant heat, the aqueous polyurethane heat reflection coatings that improves working security and environmental protection.
Another object of the present invention is the purposes that above-mentioned aqueous polyurethane heat reflection coatings is provided.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of aqueous polyurethane heat reflection coatings, this formulation for coating material adopts the dual-component polyurethane system, and it comprises two kinds of components of first, second:
Wherein, the first component comprises (weight part):
Water 0-20
Aqueous polyurethane emulsion 100
Heat reflection pigment 20-25
Functional stuffing 0.5-5
Wetting dispersing agent 1-3
Base material wetting agent 0.1-0.5
Rheological agent 0.1-0.5
Skimmer 0.2-0.5
Thickening material 0.2-0.5
Filler 0.5-2
Described aqueous polyurethane emulsion is bought from Inst. of Marine Chemical Engineering.They are that urethane, propenoate, epoxy, silicone resin structure are introduced among the same superpolymer; Combine the characteristics of several kinds of resins; Thereby make resultant coating on eco-friendly basis, have the performance adjustment space of broad, in the hope of satisfying different needs.
Component B is: a kind of in silane coupling agent or the isocyanates solidifying agent;
When said component B was silane coupling agent, the weight ratio of first component and component B was 100: 1～2; When said component B was the isocyanates solidifying agent, the weight ratio of first component and component B was 9: 1.First, component B mixes use by above-mentioned weight ratio.
Said heat reflection pigment is that several kinds in red iron oxide, phthalocyanine green, the white titanium pigment are composite;
Heat reflection pigment role: adopt the composite grey colour thermal reflection pigments system that goes to sea of above-mentioned pigment, the reflectivity of near infrared light (780nm～2500nm wavelength) is reached more than 70%.
Said filler is functional filler and common fillers.
Said functional filler is ultra-finely (aerosil, the hollow glass of particle diameter 5um～15um), to float in pearl, the hollow ceramic microspheres etc. one or more.
Said functional stuffing role: heat-blocking action is provided, intercepts heat passagely, improve heat reflection performance.
Said common fillers is ultra-fine (one or more in the light calcium carbonate of particle diameter 5um～15um), talcum powder, mica powder, process white etc.
Said common fillers role: reduce cost, optimize the PVC value, improve heat reflection performance.
Said wetting dispersing agent is acrylic copolymer sylvite and special modified polycarboxylic acid sylvite, like products such as the BR3 of Hai Enke, 123K.
Said base material wetting agent is a nonionogenic tenside.Said nonionogenic tenside is polyether-modified YSR 3286, like BYK-346 etc.
Said rheological agent is polyether-modified YSR 3286, nonionogenic tenside, like BYK-333 etc.
Said skimmer is the hydrophobic solid and the broken mixture that steeps ZGK 5 in polyoxyethylene glycol.Like BYK-024, BYK-028, Hai En section 999 etc.
Said thickening material is a non-ionic water polyurethane.Like the XS-71 of Hai En section, 125P etc.
Said silane coupling agent is: the silane coupling agent that contains epoxide group; A kind of as among KH560, Wtlink78, the Osilcoat1770 etc.
Said isocyanates solidifying agent be isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), dicyclohexyl methane diisocyanate (HMDI), xylylene diisocyanate (XDI), tetramethylxylylene diisocyanate (TMXDI) with the hydrophilic polyether reaction after contained-a kind of in the hydrophilic solidifying agent of NCO.Like 2487,2460,3100,2655 etc. of BAYER company.
Effect of the present invention: adopt aqueous polyurethane emulsion; Hydroxyl and carboxyl; Composite containing-NCO water-based makes the finish paint base-material with polyurethane curing agent, has autoxidation and dual triple cross-linking systems after crosslinked, has improved cross-linking density; Improved water tolerance, excellent weather resistance is provided, protects light and tint retention ability.
With epoxy, the organic-silicon-modified pure polyaminoester emulsion of water-based; The composite solidifying agent that contains the silane coupling agent of epoxide group is made priming paint and finish paint base-material; Has autoxidation and the substance dual cross-linking system after crosslinked; Improved cross-linking density, improved water tolerance, outstanding adhesion, antiseptic property are provided.
The screening of the grey colour thermal reflection pigments system in sea: adopt white titanium pigment, organic and inorganic red, the dark green composite grey colour thermal reflection pigments system that goes to sea of phthalein, be used for aqueous coating system, excellent heat reflection performance is provided.
Above-mentioned aqueous polyurethane heat reflection coatings is in the anticorrosion and decorative applications of steelwork, duraluminum, plastics, composite material surface.Also can be applicable to surfaces such as large-scale petroleum, natural gas storage tank, petroleum pipe line, grain depot, freezer, automobile, building.
Aqueous polyurethane heat reflection coatings heat reflection excellent in efficiency of the present invention, have outstanding adhesion, weathering resistance, outer anticorrosion ability, thus can reduce coated article surface temperature and interior environment temperature improve Working environment, energy-saving and cost-reducing, improve working security and compliance with environmental protection requirements.
Embodiment
Further specify the present invention below in conjunction with embodiment, the present invention is not limited to these embodiment.
Routine raw materials used trade name and manufacturer are following in the enforcement of the present invention:
The aqueous polyurethane heat reflection coatings is divided into first component and component B, and the preparation method of first component is following:
Under 1000 rev/mins stirring state, in part aqueous polyurethane emulsion (half of formula ratio is to 2/3rds amounts), add heat reflection pigment, functional stuffing, wetting dispersing agent, pre-dispersed even; With above-mentioned material in grinding plant with under 2000～3000 rev/mins the rotating speed; With improved grinding to fineness is 10um～20um; Obtain required color stuffing slurry after the filtration; Under 1000 rev/mins stirring at low speed, add remaining aqueous polyurethane emulsion, base material wetting agent, thickening material, skimmer, rheological agent then.Add suitable water according to construction requirement and regulate the viscosity construction.
Embodiment 1:
The first component according to the parts by weight proportioning is:
10 parts in water, 100 parts of aqueous polyurethane PUA emulsions, black 4.5 parts of 17.2 parts of You of white titanium pigment Ji perylene, 10 parts of mica powders, 5 parts of aerosils; 5 parts of hollow ceramic microspheres, 0.32 part of Disponer W-18,1.5 parts of DeuAdd MB-11; 379 1.5 parts of NAZIA FA, 125 3.2 parts of RHEOLATE, 1.5 parts of Levaslip W-461.
Component B is: contain-2,655 11 parts of the hydrophilic solidifying agent BAYER of NCO.
It is following to join the lacquer process:, under 300～500 rev/mins, stir adjustment viscosity 40 seconds (being coated with-4), the mode making sheet of adopting spraying or brushing with first, component B and water proportional mixing.Thickness: priming paint 40um, finish paint 40um.
Embodiment 2:
The first component according to the parts by weight proportioning is:
0 part in water, 100 parts of aqueous polyurethane PUD emulsions, 17.8 parts of white titanium pigments, 3.4 parts of red iron oxides; 18 parts of yellow oxide of iron, 20 parts of phthalocyanine blues, 10 parts in permanent white, 10 parts of hollow glass micropearls; 0.32 part of Disponer W-19,1.7 parts of Dispenor W-519,0.32 part of Deform W-052; 1.5 parts of DeuAdd MB-16,579 1.5 parts of NAZIA FA, 1.5 parts of BENTONE DY.
Component B: coupling agent KH-560, add-on is 2% of a first component gross weight.
Join the lacquer process with embodiment 1.
Embodiment 3:
The first component according to the parts by weight proportioning is:
0 part in water, 100 parts of aqueous polyurethane emulsions, 17.1 parts of white titanium pigments, 6.4 parts of permanent bordeauxs; 0.8 part of yellow oxide of iron, 1.6 parts of phthalocyanine greens, 1 part of phthalocyanine blue, 0.32 part of Disponer W-19; 9 parts of DisponerW-519,5 parts of aerosils, 5 parts on pearl floats in power plant, 10 parts in permanent white; 0.3 part of Deform W-092,3.2 parts of RHEOLATE125,1.5 parts of DeuAdd MB-11,5 parts of Tamol165.
Component B: contain-3,100 11 parts of the hydrophilic solidifying agent BAYER of NCO.
Join the lacquer process with embodiment 1.
Embodiment 4:
The first component according to the parts by weight proportioning is:
10 parts in water, 100 parts of aqueous polyurethane PUD emulsions, 17.4 parts of white titanium pigments, 6.4 parts of permanent bordeauxs; 10 parts of permanent yellows, 4.32 parts of phthalocyanine blues, 850 1.2 parts of Tamol, 960 2 parts of Tamol; 10 parts of aerosils, 5 parts on pearl floats in power plant, 10 parts in permanent white, 0.64 part of Deform W-092; 125 6.4 parts of RHEOLATE, 1.5 parts of DeuAdd MB-16,5 parts of YB-405.
Component B: coupling agent wtlink78, add-on is 2% of a first component gross weight.
Join the lacquer process with embodiment 1.
Embodiment 5:
The first component according to the parts by weight proportioning is:
20 parts in water, 100 parts of aqueous polyurethane PUA emulsions, 17.6 parts of white titanium pigments, 3.4 parts of red iron oxides; 18 parts of yellow oxide of iron, black 4.5 parts of You Ji perylene, 10 parts of mica powders, 5 parts of aerosils; 5 parts of hollow ceramic microspheres, 0.32 part of Disponer W-18,1.5 parts of DeuAdd MB-11; 379 1.5 parts of NAZIAFA, 125 3.2 parts of RHEOLATE, 1.5 parts of Levaslip W-461.
Component B: contain-2,487 11 parts of the hydrophilic solidifying agent BAYER of NCO.
Join the lacquer process with embodiment 1.
Embodiment 6:
The first component according to the parts by weight proportioning is:
0 part in water, 100 parts of aqueous polyurethane PUD emulsions, 17.3 parts of white titanium pigments, 3.4 parts of red iron oxides; 18 parts of yellow oxide of iron, 20 parts of phthalocyanine blues, 10 parts in permanent white, 10 parts of hollow glass micropearls; 0.32 part of Disponer W-19,1.7 parts of Dispenor W-519,0.32 part of Deform W-052; 1.5 parts of Troysan Polyplase AF-1,579 1.5 parts of NAZIA FA, 1.5 parts of BENTONE DY.
Component B: coupling agent Osilcoat1770, add-on is 2% of a first component gross weight.
Join the lacquer process with embodiment 1.
The performance test results after the heat reflection grey ship hull paint making sheet in sea for preparing behind first, the component B proportional mixing is following:
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But everyly do not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and remodeling that above embodiment did, still belong to the protection domain of technical scheme of the present invention according to technical spirit of the present invention.
Claims (9)
1. an aqueous polyurethane heat reflection coatings is characterized in that, this formulation for coating material adopts the dual-component polyurethane system, comprises two kinds of components of first, second:
Wherein, the first component comprises (weight part):
Water 0-20
Aqueous polyurethane emulsion 100
Heat reflection pigment 20-25
Functional stuffing 0.5-5
Wetting dispersing agent 1-3
Base material wetting agent 0.1-0.5
Rheological agent 0.1-0.5
Skimmer 0.2-0.5
Thickening material 0.2-0.5
Filler 0.5-2
Described aqueous polyurethane emulsion is bought from Inst. of Marine Chemical Engineering;
Component B is: a kind of in silane coupling agent or the isocyanates solidifying agent;
When said component B was silane coupling agent, the weight ratio of first, component B was 100: 1～2; When said component B was the isocyanates solidifying agent, the weight ratio of first, component B was 9: 1.
2. aqueous polyurethane heat reflection coatings according to claim 1 is characterized in that, described heat reflection pigment comprises red iron oxide, phthalocyanine green, white titanium pigment, several kinds of composite uses.
3. aqueous polyurethane heat reflection coatings according to claim 1 is characterized in that, said functional stuffing is ultra-finely (aerosil, the hollow glass of particle diameter 5um～15um), to float in pearl, the hollow ceramic microspheres one or more.
4. aqueous polyurethane heat reflection coatings according to claim 1 is characterized in that, said wetting dispersing agent is acrylic copolymer sylvite and special modified polycarboxylic acid sylvite.
5. aqueous polyurethane heat reflection coatings according to claim 1 is characterized in that, described base material wetting agent is a nonionogenic tenside.
6. aqueous polyurethane heat reflection coatings according to claim 1 is characterized in that, said rheological agent is polyether-modified YSR 3286, nonionogenic tenside.
7. aqueous polyurethane heat reflection coatings according to claim 1 is characterized in that, said silane coupling agent is: the silane coupling agent that contains epoxide group.
8. aqueous polyurethane heat reflection coatings according to claim 1; It is characterized in that, said isocyanates solidifying agent be isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), dicyclohexyl methane diisocyanate (HMDI), xylylene diisocyanate (XDI), tetramethylxylylene diisocyanate (TMXDI) with the hydrophilic polyether reaction after contained-a kind of in the hydrophilic solidifying agent of NCO.
9. aqueous polyurethane heat reflection coatings as claimed in claim 1, the application on steelwork, duraluminum, plastics, composite material surface.
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| CN102964978A (en) * | 2012-12-21 | 2013-03-13 | 青岛海诺水务科技股份有限公司 | Light reflecting coating |
| CN102993875A (en) * | 2012-12-27 | 2013-03-27 | 海南红杉科创实业有限公司 | Interior wall heat insulation coating |
| CN103045070A (en) * | 2012-11-25 | 2013-04-17 | 钟春江 | LED (Light Emitting Diode) water-based lamp shade paint, manufacturing method thereof and paint film forming method |
| CN103709866A (en) * | 2013-12-23 | 2014-04-09 | 南京中电熊猫照明有限公司 | LED (Light Emitting Diode) lampshade paint, preparation method thereof and forming way of paint film |
| CN105238247A (en) * | 2015-10-21 | 2016-01-13 | 中国船舶重工集团公司第七二五研究所 | Preparation method of waterborne polyurethane reflective insulation coating |
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| WO2017088083A1 (en) * | 2015-11-27 | 2017-06-01 | 江苏宝泽高分子材料股份有限公司 | Water-based polishing treating agent for synthetic leather and preparation method therefor |
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| CN107760156A (en) * | 2017-10-24 | 2018-03-06 | 沈阳顺风新材料有限公司 | A kind of heat insulating reflecting coating and preparation method thereof |
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| CN109085730A (en) * | 2018-08-18 | 2018-12-25 | 南阳理工学院 | A kind of eye-witness report reflector |
| CN109942776A (en) * | 2019-03-15 | 2019-06-28 | 重庆交通大学 | Aqueous polyurethane emulsion, aqueous polyurethane High tailored coating and preparation method |
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| CN103045070B (en) * | 2012-11-25 | 2016-01-27 | 钟春江 | The formation method of LED water-based lampshade paint and preparation method thereof and paint film |
| CN102964978A (en) * | 2012-12-21 | 2013-03-13 | 青岛海诺水务科技股份有限公司 | Light reflecting coating |
| CN102964978B (en) * | 2012-12-21 | 2015-07-08 | 青岛文创科技有限公司 | Light reflecting coating |
| CN102993875A (en) * | 2012-12-27 | 2013-03-27 | 海南红杉科创实业有限公司 | Interior wall heat insulation coating |
| CN103709866A (en) * | 2013-12-23 | 2014-04-09 | 南京中电熊猫照明有限公司 | LED (Light Emitting Diode) lampshade paint, preparation method thereof and forming way of paint film |
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| CN106752526A (en) * | 2016-12-23 | 2017-05-31 | 沈阳化工研究院有限公司 | A kind of aqueous light reflection industrial heat preservation coating and preparation method thereof |
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Application publication date: 20120711 |