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CN104059440A - Water-based paint with high weatherability - Google Patents

Water-based paint with high weatherability Download PDF

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Publication number
CN104059440A
CN104059440A CN201410281168.4A CN201410281168A CN104059440A CN 104059440 A CN104059440 A CN 104059440A CN 201410281168 A CN201410281168 A CN 201410281168A CN 104059440 A CN104059440 A CN 104059440A
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China
Prior art keywords
parts
water
mixture
agent
weathering resistance
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Granted
Application number
CN201410281168.4A
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Chinese (zh)
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CN104059440B (en
Inventor
刘咏梅
孙潜
余海燕
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Lan-Star (chengdu) New Material Co Ltd
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Lan-Star (chengdu) New Material Co Ltd
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Priority to CN201410281168.4A priority Critical patent/CN104059440B/en
Publication of CN104059440A publication Critical patent/CN104059440A/en
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Publication of CN104059440B publication Critical patent/CN104059440B/en
Expired - Fee Related legal-status Critical Current
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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

The water-borne coatings that a kind of weathering resistance is high
Technical field
The present invention relates to water-borne coatings field, relate in particular to the water-borne coatings that a kind of weathering resistance is high.
Background technology
Along with the enhancing of environmental consciousness, countries in the world have all been worked out limit standard and the rules of volatile organic matter (VOC) discharge in succession.Solvent based coating is the important sources of VOC, and environment is caused to very large pollution, and human body is brought to great harm, has the potential safety hazards such as inflammable, explosive in construction, storage, transportation simultaneously.Water-borne coatings has green, energy-conservation, safety, acts on feature easily, in countries in the world, has obtained developing rapidly.Water-borne coatings, as adding water-reducible clearly pure environmentfriendly products, has the features such as low formaldehyde, low aromatics hydrocarbon polymer compared with traditional solvent reducible coatings, be the high-tech Chaoyang product that belongs to of new generation.In water-borne coatings when construction, directly adds clear water dilution, before construction and both free from environmental pollution after construction, does not damage again HUMAN HEALTH.Water-borne coatings is brand-new generation environmentfriendly products still not, and its property indices is more even better than common paint, has paint film plentiful level and smooth, hardness is moderate, strong adhesion, wear resisting property is excellent, and time of drying is short, enduring quality is good, construction is simple, without brush mark, does not produce the plurality of advantages such as bubble when curing, but its water tolerance, weathering resistance and abrasion resistance are good not, therefore it is only suitable for indoor.
Publication number is that CN102876150A name is called the Chinese invention patent of " anti-graffiti water-borne coatings of a kind of high weather-proof anti-stick subsides and preparation method thereof ", disclosing this coating is two-component coating, the weight ratio of A component and B component is 4: 1, A component is by hydroxyl fluorine carbon emulsion, anti-graffiti resin, defoamer, wetting agent, water forms, described B component is hydrophilic isocyanate curing agent, (3) to hydroxyl fluorine carbon emulsion, add water and anti-graffiti resin, then add defoamer, wetting agent, finally add isocyanate curing agent, obtain the anti-graffiti water-borne coatings of high weather-proof anti-stick subsides.The dispersiveness of this coating is not high enough, and weathering resistance also need to improve.
Summary of the invention
The present invention is intended to solve in prior art, and coating dispersiveness is bad, and the problem that weathering resistance is not high proposes the water-borne coatings that a kind of weathering resistance is high.
In order to realize foregoing invention object, main technical schemes of the present invention is:
The water-borne coatings that a kind of weathering resistance is high, the raw material that comprises following weight part: 40~60 parts, the mixture of urethane resin and Polystyrene-acrylate copolymer emulsion, 15~25 parts of kaolin, 0.5~3 part of iron pigment, 0.1~0.8 part of borax, 0.5~2 part of protective agent, 3,010 0.5~2 parts, oxidation inhibitor, 6,520 0.5~3 parts of defoamer HT, 0.1~3 part of dispersion agent, 0.1~1 part of emulsifying agent, 0.1~1 part of ammoniacal liquor, 25~50 parts, 5~8 parts of tetrafluoroethylene and water; Described protective agent is the mixture of UV light absorber UVP-327 and photostabilizer 744, and its blending ratio is: 1~2:1.
Preferably, the ratio of the mixture of described urethane resin and Polystyrene-acrylate copolymer emulsion is 2~4:1.
Preferably, described dispersion agent is dispersion agent 5040.
Preferably, described emulsifying agent is the mixture of pure Sodium Lauryl Sulphate BP/USP and polyoxyl 40 stearate, and its blending ratio is 1:1~2.
Wherein, oxidation inhibitor 3010 is high-efficiency anti-oxidants of Dipentaerythritol diphosphites spirane structure, has outstanding thermostability and modification of colour.At high temperature antioxidant effect is outstanding, can suppress preferably the discoloration problem that hot oxygen and ultraviolet ray produce, with Hinered phenols antioxidant, UV light absorber, photostabilizer also has optimal process with forming one, ageing resistance, the system of light stability and economy; Red, yellow, brown, black several large classes that iron pigment has, it is except having weathering resistance, chemical resistant properties, nontoxic, cheap advantage, also there is lucid and lively, bright-colored pure, the feature that tinting strength is high of tone, therefore can reach outside adding purpose, can also greatly reduce costs; Borax is cooked inhibitor use, and can effectively prevent affects its decoration and provide protection after external substance is on coating corrosion; Tetrafluoroethylene, with in the present invention, has obvious enhancing coating resistance to elevated temperatures, and has advantages of acidproof, alkaline-resisting.
Beneficial effect: the present invention passes through various raw-material selections and suitable proportioning thereof, between consistency and effect, found a trim point, consistency between material is good, synergy obviously, the water-borne coatings making, compared with prior art, dispersiveness, weathering resistance, corrosion-resistant being significantly improved.Preferred base-material is the mixture of urethane resin and Polystyrene-acrylate copolymer emulsion, and its ratio is 1:1~2, and its urethane resin itself has stronger radiation hardness, the characteristic of ultraviolet resistance, is a kind of outdoor base-material that is suitable for; Polystyrene-acrylate multipolymer is except having the good processibility of polystyrene, also has the weathering resistance of acrylate and good resistance to optical.Both are mixed and used with 1:1~2, and the consumption of Polystyrene-acrylate multipolymer can make the viscosity of mixing solutions best a little more than urethane resin, and result of use doubles, and both have best consistency.In the present invention, preferred dispersion agent is dispersion agent 5040, foaminess is low, can improve the mobility of coating, the excellent properties with stable slurry viscosity, use amount seldom just can reach the effect of good dispersity, use together with other compositions in the present invention, can not reduce the viscosity of mixture, and after finished product is coated on buildings, water tolerance is also improved.Compared with prior art, the present invention has good weathering resistance, erosion resistance.
Embodiment
Embodiment 1
The water-borne coatings that red weathering resistance is high, comprises the raw material of following weight part: 30 parts of urethane resins, 10 parts of Polystyrene-acrylate copolymer emulsions, 15 parts of kaolin, 0.5 part of red iron oxide, 0.1 part of borax, 0.5 part of UV light absorber UVP-327,744 0.5 parts of photostabilizers, 3,010 0.5 parts, oxidation inhibitor, 6,520 1 parts of defoamer HT, 0.1 part of dispersion agent, 0.4 part of emulsifying agent, 0.3 part of ammoniacal liquor, 25 parts, 5 parts of tetrafluoroethylene and water.
Described dispersion agent can be one or more in polyoxyethylene alkyl phenyl ether, dispersion agent 5040, dispersion agent HT-5000.
Described emulsifying agent is a kind of in polyacrylamide, xanthan gum XG, polymerization of carboxylic acid salt polyacrylic acid, alanine type, phenol formaldehyde condensate sulfonate.
Its preparation method is: take respectively after required various raw materials, urethane resin and Polystyrene-acrylate copolymer emulsion are added in agitator and under the rotating speed with 1300r/min, stir after 3 minutes, add defoamer to continue to stir 25min, then by other auxiliary agents: kaolin, borax, UV light absorber UVP-327, photostabilizer, oxidation inhibitor 3010, defoamer HT 6520, after dispersion agent adds together, with 1000r/min rotating speed, stir after 10min, add pigment, continue to stir more than 5 minutes, color even, finally add ammoniacal liquor, regulate PH to 5~7.
Embodiment 2
The water-borne coatings that weathering resistance is high, comprises the raw material of following weight part: 30 parts of urethane resins, 15 parts of Polystyrene-acrylate copolymer emulsions, 20 parts of kaolin, 0.8 part of iron pigment, 0.3 part of borax, 1 part of UV light absorber UVP-327,744 0.5 parts of photostabilizers, 3,010 0.8 parts, oxidation inhibitor, 6,520 0.5 parts of defoamer HT, 5,040 0.18 parts of dispersion agents, 0.6 part of emulsifying agent, 0.7 part of ammoniacal liquor, 35 parts, 6 parts of tetrafluoroethylene and water.
Described emulsifying agent is the mixture of pure Sodium Lauryl Sulphate BP/USP and polyoxyl 40 stearate, and its blending ratio is 1:2.
Its preparation method is with embodiment 1.
Embodiment 3
The water-borne coatings that yellow weathering resistance is high, comprises the raw material of following weight part: 45 parts of urethane resins, 15 parts of Polystyrene-acrylate copolymer emulsions, 25 parts of kaolin, 3 parts of iron oxide yellow, 0.8 part of borax, 1 part of UV light absorber UVP-327,744 1 parts of photostabilizers, 3,010 2 parts, oxidation inhibitor, 6,520 2 parts of defoamer HT, 2.5 parts of dispersion agents, 1 part of emulsifying agent, 1 part of ammoniacal liquor, 45 parts, tetrafluoroethylene 57 and water.
Described dispersion agent can be one or more in polyoxyethylene alkyl phenyl ether, dispersion agent 5040, dispersion agent HT-5000.
Described emulsifying agent is the mixture of pure Sodium Lauryl Sulphate BP/USP and polyoxyl 40 stearate, and its blending ratio is 1:1.
Its preparation method is with embodiment 1.
Embodiment 4
The water-borne coatings that a kind of weathering resistance is high, the raw material that comprises following weight part: 30 parts of urethane resins, 15 parts of Polystyrene-acrylate copolymer emulsions, 20 parts of kaolin, 1.2 parts of iron pigments, 0.5 part of borax, 0.5 part of UV light absorber UVP-327,744 0.5 parts of photostabilizers, 3,010 1 parts, oxidation inhibitor, 6,520 0.9 parts of defoamer HT, 5,040 0.6 parts of dispersion agents, 0.4 part of pure Sodium Lauryl Sulphate BP/USP, 0.4 part of polyoxyl 40 stearate, 0.5 part of ammoniacal liquor, 40 parts, 7 parts of tetrafluoroethylene and water.
Described iron pigment can select that iron oxide red, iron oxide yellow, iron oxide black, iron are blue, iron is green, iron is purple and cologne earth etc.
Its preparation method is with embodiment 1.

Claims (4)

1. the water-borne coatings that weathering resistance is high, it is characterized in that: the raw material that comprises following weight part: 40~60 parts, the mixture of urethane resin and Polystyrene-acrylate copolymer emulsion, 15~25 parts of kaolin, 0.5~3 part of iron pigment, 0.1~0.8 part of borax, 0.5~2 part of protective agent, 3,010 0.5~2 parts, oxidation inhibitor, 6,520 0.5~3 parts of defoamer HT, 0.1~3 part of dispersion agent, 0.1~1 part of emulsifying agent, 0.1~1 part of ammoniacal liquor, 25~50 parts, 5~8 parts of tetrafluoroethylene and water; Described protective agent is the mixture of UV light absorber UVP-327 and photostabilizer 744, and its blending ratio is: 1~2:1.
2. the high water-borne coatings of a kind of weathering resistance according to claim 1, is characterized in that: the ratio of the mixture of described urethane resin and Polystyrene-acrylate copolymer emulsion is 2~4:1.
3. the high water-borne coatings of a kind of weathering resistance according to claim 1, is characterized in that: described dispersion agent is dispersion agent 5040.
4. the high water-borne coatings of a kind of weathering resistance according to claim 1, is characterized in that: described emulsifying agent is the mixture of pure Sodium Lauryl Sulphate BP/USP and polyoxyl 40 stearate, and its blending ratio is 1:1~2.
CN201410281168.4A 2014-06-23 2014-06-23 The water-borne coatings that a kind of weathering resistance is high Expired - Fee Related CN104059440B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104449094A (en) * 2014-09-25 2015-03-25 阜南县永盛工艺品有限公司 Wicker coating
CN104962160A (en) * 2015-07-24 2015-10-07 苏州荣昌复合材料有限公司 Ultraviolet-resistant paint composition for plastics
CN108017988A (en) * 2017-12-06 2018-05-11 苏州铂邦胶业有限公司 The water paint of good weatherability
CN108978024A (en) * 2018-06-28 2018-12-11 安徽原野滤材有限公司 A kind of grease proofing antistatic dust-removal cloth-bag material of water repellent
CN113698826A (en) * 2021-09-01 2021-11-26 浙江浩博新材料有限公司 Weather-resistant water-based acrylic coating
CN116676020A (en) * 2023-07-03 2023-09-01 无锡市昊彩光学科技有限公司 A weather-resistant self-healing coating and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101481443A (en) * 2009-01-23 2009-07-15 华南理工大学 Polyurethane-polyacrylacid ester interpenetrating network polymer, preparation and use thereof
CN101481584A (en) * 2009-01-23 2009-07-15 华南理工大学 Dry powder latex paint for inner wall and preparation thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101481443A (en) * 2009-01-23 2009-07-15 华南理工大学 Polyurethane-polyacrylacid ester interpenetrating network polymer, preparation and use thereof
CN101481584A (en) * 2009-01-23 2009-07-15 华南理工大学 Dry powder latex paint for inner wall and preparation thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104449094A (en) * 2014-09-25 2015-03-25 阜南县永盛工艺品有限公司 Wicker coating
CN104962160A (en) * 2015-07-24 2015-10-07 苏州荣昌复合材料有限公司 Ultraviolet-resistant paint composition for plastics
CN108017988A (en) * 2017-12-06 2018-05-11 苏州铂邦胶业有限公司 The water paint of good weatherability
CN108978024A (en) * 2018-06-28 2018-12-11 安徽原野滤材有限公司 A kind of grease proofing antistatic dust-removal cloth-bag material of water repellent
CN113698826A (en) * 2021-09-01 2021-11-26 浙江浩博新材料有限公司 Weather-resistant water-based acrylic coating
CN116676020A (en) * 2023-07-03 2023-09-01 无锡市昊彩光学科技有限公司 A weather-resistant self-healing coating and preparation method thereof

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