CN102863892B - Water-base polyurethane coating for fan blades and preparation method thereof - Google Patents
Water-base polyurethane coating for fan blades and preparation method thereof Download PDFInfo
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- CN102863892B CN102863892B CN201210369635.XA CN201210369635A CN102863892B CN 102863892 B CN102863892 B CN 102863892B CN 201210369635 A CN201210369635 A CN 201210369635A CN 102863892 B CN102863892 B CN 102863892B
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Abstract
The invention relates to water-base polyurethane coating for fan blades and a preparation method thereof. The water-base polyurethane coating comprises component A and component B by weight proportion of 5:1. The component A comprises deionized water, anti-settling agents, wetting dispersant, defoaming agents, rutile type titanium dioxide powder, carbon black, precipitated barium sulphate, acrylic dispersion, filming auxiliary, flatting agents and thickeners, and the component B comprises hydrophilic modified polyether HDI (hexamethylene diisocyanate) trimer, modified polyester HDI trimer and propylene glycol methyl ether acetate. By taking water as a main dispersion medium, the water-base polyurethane coating for the fan blades has the advantages of low VOC (volatile organic compounds) release, light smell, low harms on human bodies, non-combustible property, unique safety in storage, transport and use, excellent performance and the like, and further, safety potential hazards caused by accumulation of a great quantity of harmful solvents can be eliminated, and physical and psychological health of constructors are benefited greatly.
Description
Technical field
The invention belongs to painting technical field, be specifically related to a kind of fan blade use polyurethane coating and preparation method thereof.
Background technology
Renewable as one, the free of contamination green energy resource of wind energy, rich reserves, inexhaustible, nexhaustible.Large-scale developing and utilizing of wind energy, effectively will reduce the use of fossil energy, reduce greenhouse gas emission, protection of the environment, greatly develop the important selection that wind energy has become countries in the world government.
THE WIND ENERGY RESOURCES IN CHINA is enriched, flourish along with China's Wind Power Generation Industry, the demand of fan blade coating is naturally also increasing, but current coating used mostly is solvent-based system, discharges a large amount of solvents in construction process, environmental pollution is serious, more unfavorable to environmental health, the beneficial environmental properties that this and wind energy itself have very is not inconsistent, and more runs counter to China's " energy-saving and emission-reduction " and the strategy of sustainable development.And for fan blade use environment-friendly type coating, although current domestic existing part producer starts to attempt using, but due to complete dependence on import, have that product price is high, delivery cycle is long, especially the problems such as slow are fed back to produced problem in construction, make it apply and receive serious restriction, therefore, develop and make use fan blade coating concerning seeming particularly important and imperative China.
And the domestic research to fan blade paint field of China is more late, mentality of designing is Hydroxylated acrylic resin+isocyanate curing agent, and the low-temperature performance of its coating formed is poor; Adopt the coating of Hydroxylated acrylic resin+vibrin+isocyanate curing agent composition in addition, but coating weatherability is poor, cannot reach the high requirement of China to wind-driven power generation blade coating performance.
Summary of the invention
For the deficiencies in the prior art, the fan blade use polyurethane coating that the object of the present invention is to provide a kind of fan blade be applicable under the severe environment such as China land and ocean to safeguard, has excellent weathering resistance, protects light and protect look, wear-resistant, lower temperature resistance its environmental protection.
Technical scheme of the present invention realizes (the present invention is raw materials used is commercially available prod of the prior art) like this: fan blade use polyurethane coating, is made up of component A and B component, and the quality proportioning of component A and B component is 5:1;
Composition and the massfraction of each material in component A of component A are: deionized water: 5.0 ~ 15%, anti-settling agent: 0.2 ~ 0.5%, wetting dispersing agent: 0.5 ~ 1.0%, defoamer: 0.2 ~ 0.3%, Rutile type Titanium Dioxide: 25.0 ~ 30.0%, carbon black: 0.1 ~ 0.2%, process white: 1.0 ~ 9.0%, acrylic acid dispersion: 45.0 ~ 55.0%, film coalescence aid: 1.0 ~ 2.0%, matting agent: 2.0 ~ 5.0%, thickening material: 0.5 ~ 1.5%;
Composition and the massfraction of each material in B component of B component are: Polyether hydrophilic HDI tripolymer: 60.0 ~ 70.0%, polyester modification HDI tripolymer: 15.0 ~ 25.0%, 1-Methoxy-2-propyl acetate: 5.0 ~ 25.0%.
Component A is using acrylic acid dispersion as hydroxy component, B component using spelling in Polyether hydrophilic HDI tripolymer with some polyesters modification HDI tripolymer as curing agent component, prepare the fan blade use polyurethane coating with snappiness, high-wearing feature and high-weatherability.
Above-mentioned fan blade use polyurethane coating, described acrylic acid dispersion is the Bayhydrol XP2470 acrylic acid dispersion of German Baeyer (Bayer) company.
Above-mentioned fan blade use polyurethane coating, described Polyether hydrophilic HDI tripolymer is the Rhodocoat WT2102 of French Rhodia.
Above-mentioned fan blade use polyurethane coating, described polyester modification HDI tripolymer is the Desmodur N3800 of German Bayer AG.
Because blower fan is placed in the more desert of wind sand more, coastal area, the erosion of wind sand can be subject to, wearing and tearing etc., and fan blade is for holding yielding glass-reinforced plastic material, high-speed motion must produce recoverable deformation, therefore, spelling some polyesters modification HDI tripolymer in Polyether hydrophilic HDI tripolymer selected by solidifying agent, as the Rhodocoat WT2102 of Luo Diya and the Desmodur N3800 of Baeyer (Bayer), Rhodocoat WT2102 has excellent wetting ability, very easily miscible with water-borne acrylic resin, and guarantor's light weathering resistance is better, Desmodur N3800 has high-weatherability, wear resistance and resistance to chemical corrosion and low-temperature flexibility performance, mixing according to a certain percentage can provide film higher elasticity and wear resistance, and weathering resistance is also quite excellent.
Above-mentioned fan blade use polyurethane coating, described film coalescence aid is dipropylene, and 1-Methoxy-2-propyl acetate is solubility promoter.Film coalescence aid has solublization, acrylic acid dispersion and solidifying agent can be made to react further, improve cross-linking density, over-all properties is improved, preferentially can use and there is stronger reduction surface tension effects and good pigment wettability, compare again propylene glycol ethers and the dipropylene glycol ether solvent of environmental protection simultaneously, as: dipropylene.Because fan blade needs longer work-ing life (at least 20 years), therefore fan blade film performance requires corresponding higher, wherein, the hydroxyl acrylic aqueous dispersion of the pure Class C that film-forming resin uses, as the Bayhydrol XP2470 acrylic acid dispersion of Baeyer (Bayer), good weathering resistance can be provided, improve the weather resistance of fan blade film.
Above-mentioned fan blade use polyurethane coating, described Rutile type Titanium Dioxide is Rutile type Titanium Dioxide TS-6200, and described carbon black is the carbon black MA-100 of Mitsubishi; Effectively can improve the weathering resistance of film.The granularity of described process white is 400 orders; Stable performance, oil number are low, improve the physical strength of fan blade film.
Above-mentioned fan blade use polyurethane coating, described wetting dispersing agent is EFKA 4560.
Above-mentioned fan blade use polyurethane coating, described defoamer is BYK-024.
Above-mentioned fan blade use polyurethane coating, described anti-settling agent is Bentone EW, and described thickening material is RM-8W.
Matting agent, for adjusting the gloss of film, because fan blade film requires to design lower gloss, therefore adds the good flatting silica of stability, as Degussa OK520, has higher flatting efficiency and stability in storage.
The present invention is mainly using water as dispersion medium, because the surface tension of water is higher, therefore, poor to the wetting ability of color stuffing, need add the dispersion stabilization that wetting dispersing agent (as EFKA 4560) ensures color stuffing.Owing to there being the existence of tensio-active agent in system, easily draw generation foamy, therefore, need to add defoamer (as BYK-024).In addition, also need to add anti-settling agent (as this Bentone-EW of hamming) and improve stability in storage, add the roller coating application property that thickening material (as ROHM AND HAAS RM-8W) improves system viscosity and water-borne coatings.
The preparation method of above-mentioned fan blade use polyurethane coating, comprises the steps:
(1) preparation of component A: first add deionized water by formula ratio, slowly anti-settling agent is added under stirring, high speed dispersion is extremely after homogeneous thickness paste liquid, add wetting dispersing agent and defoamer stirring 15min, then color stuffing Rutile type Titanium Dioxide, carbon black and process white is added, grind to fineness with sand milling after being uniformly dispersed and be less than 30 μm, cross and filter abrasive sand, add acrylic acid dispersion, film coalescence aid and matting agent, to be uniformly dispersed and fineness is less than 30 μm, finally add thickening material, after deionized water adjustment solid part, filter and package and be component A;
(2) preparation of B component: Polyether hydrophilic HDI tripolymer, polyester modification HDI tripolymer and 1-Methoxy-2-propyl acetate blending dispersion is even by formula ratio, after dividing, filters and packages and is B component with water adjustment solid;
(3) be 5:1 mixing by component A and B component according to quality proportioning, stir and obtain fan blade use polyurethane coating.
The invention has the beneficial effects as follows: fan blade use polyurethane coating of the present invention not only there is excellent performance, as weathering resistance, wear resistance and resistance to low temperature, ensure that the permanent operation of fan blade; And due to using water as main dispersing medium, there is low VOC burst size, low smell, little to harm, do not fire, in storage, transport and use procedure, all embody its exclusive security, and the advantages such as excellent performance, not only can eliminate because a large amount of hazardous solvent assembles the potential safety hazard formed, and also of great advantage to the physical and mental health of workmen.
The aqueous polyurethane coating that the present invention proposes can use as outer finish paint separately, has good barrier propterty; Also can support the use with anti-corrosion primer simultaneously, make over-all properties more excellent.
Embodiment
Component A in embodiment one to embodiment three and the formula of B component as shown in table 1:
Described acrylic acid dispersion is the Bayhydrol XP2470 acrylic acid dispersion of German Baeyer (Bayer) company.Described Polyether hydrophilic HDI tripolymer is the Rhodocoat WT2102 of French Rhodia.Described polyester modification HDI tripolymer is the Desmodur N3800 of German Bayer AG.Described film coalescence aid is dipropylene, and 1-Methoxy-2-propyl acetate is solubility promoter.Described Rutile type Titanium Dioxide is Rutile type Titanium Dioxide TS-6200, and described carbon black is the carbon black MA-100 of Mitsubishi; The granularity of described process white is 400 orders.Described wetting dispersing agent is EFKA 4560.Described defoamer is BYK-024.Described anti-settling agent is Bentone EW, and described thickening material is RM-8W.
In embodiment one to embodiment three, the preparation method of fan blade use polyurethane coating is as follows:
(1) preparation of component A: first add deionized water by formula ratio, slowly anti-settling agent is added under stirring, it is extremely after homogeneous thickness paste liquid that high speed dispersion is about 10min, add wetting dispersing agent and defoamer stirring 15min, then color stuffing Rutile type Titanium Dioxide is added, carbon black, process white, grind to fineness with sand milling after being uniformly dispersed and be less than 30 μm, cross and filter abrasive sand, add acrylic acid dispersion, film coalescence aid, matting agent, to be uniformly dispersed and fineness is less than 30 μm, finally add thickening material, after dividing with deionized water adjustment solid, filter and package and be component A.
(2) preparation of B component: by formula ratio by Polyether hydrophilic HDI tripolymer, polyester modification HDI tripolymer, 1-Methoxy-2-propyl acetate blending dispersion evenly, after dividing, filters and packages and is B component with water adjustment solid.
(3) be 5:1 mixing by component A and B component according to quality proportioning, stir and obtain fan blade use polyurethane coating.During use, can according to actual situations of construction, thin up is to regulate working viscosity, and concrete dilution ratio is 5-15%, places 15 minutes construction effect the bests after two component mixing.Form of construction work can adopt spraying, roller coating and brushing.Form of construction work is different, and dilution ratio can be variant.
The preparation method of the above-mentioned introduction of preparation photograph of the fan blade use polyurethane coating in embodiment one to embodiment three carries out, and whole production process is without exception.According to practical situation during construction, add water adjustment viscosity, and concrete dilution ratio is relevant with form of construction work, and general control is at 5-20%.Concrete dilution ratio is, is 15-20%, has good atomizing effect during spraying; 10-15% during brushing, brushes respond well; 5-10% during roller coating, plate surface state is good.15 minutes construction effect the bests are placed after two component mixing.The coating obtained by example detects according to international standard, all meets or exceeds the performance requriements of fan blade coating, and concrete data are in shown in table 2 to table 4.
Fan blade use polyurethane coating detected result in example one is as shown in table 2:
Fan blade use polyurethane coating detected result in example two is as shown in table 3:
Fan blade use polyurethane coating detected result in example three is as shown in table 4:
Above-described embodiment is only for the invention example is clearly described, and the restriction not to the invention embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among the protection domain of the invention claim.
Claims (8)
1. fan blade use polyurethane coating, is characterized in that, is made up of A component and B component, and the quality proportioning of A component and B component is 5:1;
Composition and the massfraction of each material in A component of A component are: deionized water: 5.0 ~ 15%, anti-settling agent: 0.2 ~ 0.5%, wetting dispersing agent: 0.5 ~ 1.0%, defoamer: 0.2 ~ 0.3%, Rutile type Titanium Dioxide: 25.0 ~ 30.0%, carbon black: 0. 1 ~ 0.2%, process white: 1.0 ~ 9.0%, acrylic acid dispersion: 45.0 ~ 55.0%, film coalescence aid: 1.0 ~ 2.0%, matting agent: 2.0 ~ 5.0%, thickening material: 0.5 ~ 1.5%;
Composition and the massfraction of each material in B component of B component are: Polyether hydrophilic HDI tripolymer: 60. 0 ~ 70.0%, polyester modification HDI tripolymer: 15.0 ~ 25.0%, 1-Methoxy-2-propyl acetate: 5.0 ~ 25. 0%;
Described acrylic acid dispersion is the Bayhydrol XP2470 acrylic acid dispersion of German Bayer AG.
2. the fan blade use polyurethane coating as described in claim 1, is characterized in that, described Polyether hydrophilic HDI tripolymer is the Rhodocoat WT2102 of French Rhodia.
3. the fan blade use polyurethane coating as described in claim 1, is characterized in that, described polyester modification HDI
Tripolymer is the Desmodur N3800 of German Bayer AG.
4. the fan blade use polyurethane coating as described in claim 1, it is characterized in that, described film coalescence aid is dipropylene, 1-Methoxy-2-propyl acetate is solubility promoter.
5. the fan blade use polyurethane coating as described in claim 1, is characterized in that, described Rutile type Titanium Dioxide is Rutile type Titanium Dioxide TS-6200, and described carbon black is the carbon black MA-100 of Mitsubishi; The granularity of described process white is 400 orders.
6. the fan blade use polyurethane coating as described in claim 1, is characterized in that, described wetting dispersing agent is EFKA 4560.
7. the fan blade use polyurethane coating as described in claim 1, is characterized in that, described defoamer is BYK-024.
8. the fan blade use polyurethane coating as described in claim 1, it is characterized in that, described anti-settling agent is Bentone EW, described thickening material is RM-8W.
9. the preparation method of fan blade use polyurethane coating described in claim 1, is characterized in that, comprise the steps:
(1) preparation of component A: first add deionized water by formula ratio, slowly anti-settling agent is added under stirring, high speed dispersion is extremely after homogeneous thickness paste liquid, add wetting dispersing agent and defoamer stirring 15min, then color stuffing Rutile type Titanium Dioxide is added, carbon black and process white, grind to fineness with sand milling after being uniformly dispersed and be less than 30 μm, cross and filter abrasive sand, add acrylic acid dispersion, film coalescence aid and matting agent, to be uniformly dispersed and fineness is less than 30 μm, finally add thickening material, after deionized water adjustment solid part, filter and package and be A component,
(2) preparation of B component: Polyether hydrophilic HDI tripolymer, polyester modification HDI tripolymer and 1-Methoxy-2-propyl acetate blending dispersion is even by formula ratio, after dividing, filters and packages and is B component with water adjustment solid;
(3) be 5:1 mixing by A component and B component according to quality proportioning, stir and obtain fan blade use and gather ammonia
Ester paint.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104277694B (en) * | 2014-09-28 | 2017-02-08 | 南京悠谷知识产权服务有限公司 | Preparation method of polyurethane paint for marine wind power blades |
| CN106634521A (en) * | 2016-12-30 | 2017-05-10 | 上海奇想青晨新材料科技股份有限公司 | Carbon titanium modified polyurethane resin anti-corrosive primer-topcoat universal coating and preparation method thereof |
| CN108250930A (en) * | 2018-01-30 | 2018-07-06 | 河北晨阳工贸集团有限公司 | A kind of agricultural machinery environment protecting water-based paint and preparation method |
| CN109401597A (en) * | 2018-09-27 | 2019-03-01 | 天津美士邦涂料化工有限公司 | Waterborne polyurethane finish paint |
| CN109439165A (en) * | 2018-09-27 | 2019-03-08 | 天津美士邦涂料化工有限公司 | Preparation method of waterborne polyurethane finish paint |
| CN112574657A (en) * | 2020-11-30 | 2021-03-30 | 湖南中车弘辉科技有限公司 | Rigid fan blade protective bottom surface integrated anticorrosive paint and construction method thereof |
| CN113698858A (en) * | 2021-07-19 | 2021-11-26 | 成都普瑞斯特新材料有限公司 | Water-based wind power blade and bottom surface integrated coating and preparation method thereof |
| CN115537107B (en) * | 2022-09-27 | 2024-02-09 | 厦门双瑞船舶涂料有限公司 | Wind power blade ice-coating-preventing water polyurethane finish paint and preparation method thereof |
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| CN101260277A (en) * | 2008-04-22 | 2008-09-10 | 上海阳森精细化工有限公司 | Acrylic acid polyurethane antistatic paint and preparation method thereof |
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Inventor after: Liu Huicheng Inventor after: Du Jingyi Inventor after: Sun Xipeng Inventor after: Wu Quan Inventor after: Mu Chengquan Inventor before: Du Jingyi Inventor before: Jia Yanhua Inventor before: Sun Xipeng Inventor before: Liu Huicheng Inventor before: Mu Chengquan |
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