CN102863892A - 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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- CN102863892A CN102863892A CN201210369635XA CN201210369635A CN102863892A CN 102863892 A CN102863892 A CN 102863892A CN 201210369635X A CN201210369635X A CN 201210369635XA CN 201210369635 A CN201210369635 A CN 201210369635A CN 102863892 A CN102863892 A CN 102863892A
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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 the painting technical field, be specifically related to a kind of fan blade use polyurethane coating and preparation method thereof.
Background technology
Wind energy is as a kind of renewable, free of contamination green energy resource, and reserves are abundant, and are inexhaustible, nexhaustible.Large-scale developing and utilizing of wind energy, will effectively reduce fossil energy use, 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 abundant, be accompanied by the flourish of China's Wind Power Generation Industry, fan blade is naturally also increasing with the demand of coating, but present used coating mostly is solvent-based system, discharges a large amount of solvents in the construction process, environmental pollution is serious, more unfavorable to environmental health, the environmental protection attribute 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 at present domestic existing part producer begins to attempt using, but because complete dependence on import, have that product price is high, delivery cycle is long, especially the problem feedback that occurs in the construction is waited problem slowly, make its application be subject to serious restriction, therefore, develop and make use fan blade coating concerning China, seem particularly important and imperative.
And the domestic research to the fan blade paint field of China is late, and mentality of designing is Hydroxylated acrylic resin+isocyanate curing agent, and the low-temperature performance of the coating of its formation is relatively poor; The coating that adopts in addition Hydroxylated acrylic resin+vibrin+isocyanate curing agent to form, but coating weatherability is relatively poor, can't reach China to the high requirement of 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 that is applicable under the severe environment such as China land and ocean to safeguard has excellent weathering resistance, guarantor's light guarantor look, wear-resistant, also its environmental protection of lower temperature resistance.
Technical scheme of the present invention is to realize like this (the present invention raw materials used be commercially available prod of the prior art): fan blade use polyurethane coating, formed by A component and B component, and the quality proportioning of A component and B component is 5:1;
The composition of A component and the massfraction of each material in the 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%;
The composition of B component and the massfraction of each material in the B component are: polyethers hydrophilic modifying HDI tripolymer: 60.0～70.0%, and polyester modification HDI tripolymer: 15.0～25.0%, 1-Methoxy-2-propyl acetate: 5.0～25.0%.
The A component with acrylic acid dispersion as hydroxy component, the B component has snappiness to piece together in the polyethers hydrophilic modifying HDI tripolymer with part polyester modification HDI tripolymer as curing agent component, to prepare, the fan blade use polyurethane coating of high-wearing feature and high-weatherability.
Above-mentioned fan blade use polyurethane coating, described acrylic acid dispersion are the Bayhydrol XP2470 acrylic acid dispersion of German Baeyer (Bayer) company.
Above-mentioned fan blade use polyurethane coating, described polyethers hydrophilic modifying HDI tripolymer is the Rhodocoat WT2102 of French Rhodia.
Above-mentioned fan blade use polyurethane coating, described polyester modification HDI tripolymer are the Desmodur N3800 of German Bayer AG.
Because blower fan places the more desert of wind sand more, coastal area, can be subject to the erosion of wind sand, wearing and tearing etc., and fan blade is for holding yielding glass-reinforced plastic material, high-speed motion must produce recoverable deformation, therefore, solidifying agent is selected and is pieced together the tripolymer with part polyester modification HDI in the polyethers hydrophilic modifying HDI tripolymer, such 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 to 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 the dipropylene glycol butyl ether, 1-Methoxy-2-propyl acetate is solubility promoter.Film coalescence aid has solublization, acrylic acid dispersion and solidifying agent are further reacted, improve cross-linking density, over-all properties is improved, can preferentially use and have stronger reduction surface tension effects and pigment wettability preferably, the propylene glycol ethers and the dipropylene glycol ether solvent that compare again simultaneously environmental protection, as: the dipropylene glycol butyl ether.Because fan blade needs long work-ing life (at least 20 years), therefore the fan blade film performance requires corresponding higher, wherein, the hydroxyl acrylic aqueous dispersion of the pure Class C that film-forming resin uses, Bayhydrol XP2470 acrylic acid dispersion such as Baeyer (Bayer), preferably weathering resistance can be provided, improve the weather resistance that fan blade is filmed.
Above-mentioned fan blade use polyurethane coating, described Rutile type Titanium Dioxide is Rutile type Titanium Dioxide TS-6200, described carbon black is the carbon black MA-100 of Mitsubishi; The weathering resistance of can Effective Raise filming.The granularity of described process white is 400 orders; Stable performance, oil number are low, improve the physical strength that fan blade is filmed.
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, described thickening material is RM-8W.
Matting agent is used for adjusting the gloss of filming, and requires the lower gloss of design because fan blade is filmed, and therefore adds preferably flatting silica of stability, such as Degussa OK520, has higher flatting efficiency and stability in storage.
The present invention mainly be with water as dispersion medium because the surface tension of water is higher, therefore relatively poor to the wetting ability of color stuffing, need to add the dispersion stabilization that wetting dispersing agents (such as EFKA 4560) guarantee color stuffing.Because the existence of tensio-active agent is arranged in the system, draw easily generation foamy, therefore, need to add defoamer (such as BYK-024).In addition, also need add anti-settling agent (such as this Bentone-EW of hamming) and improve stability in storage, add the roller coating application property that thickening material (such 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 A component: add first deionized water by formula ratio, stir the lower anti-settling agent that slowly adds, high speed dispersion is after be homogeneous thickness paste liquid, add wetting dispersing agent and defoamer and stir 15min, then add color stuffing Rutile type Titanium Dioxide, carbon black and process white, be uniformly dispersed rear with sand milling grind to fineness less than 30 μ m, remove by filter abrasive sand, add acrylic acid dispersion, film coalescence aid and matting agent, be uniformly dispersed and fineness less than 30 μ m, add at last thickening material, after deionized water adjustment solid part, filter and package and be the A component;
(2) preparation of B component: it is even with polyethers hydrophilic modifying HDI tripolymer, polyester modification HDI tripolymer and 1-Methoxy-2-propyl acetate blending dispersion to press formula ratio, after water adjustment solid divides, filters and packages and is the B component;
(3) be that 5:1 mixes with A component and B component according to the quality proportioning, stir and namely get fan blade use polyurethane coating.
The invention has the beneficial effects as follows: fan blade use polyurethane coating of the present invention, not only have excellent performance, such as weathering resistance, wear resistance and resistance to low temperature, guaranteed the permanent operation of fan blade; And since with water as main dispersing medium, has low VOC burst size, low smell, little to harm, do not fire, all embodied its exclusive security in storage, transportation and the use procedure, and the advantage such as excellent performance, not only can eliminate because a large amount of hazardous solvent is assembled the potential safety hazard that consists of, and also of great advantage to workmen's physical and mental health.
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
A component among the embodiment one to embodiment three and the prescription of B component are as shown in table 1:
Described acrylic acid dispersion is the Bayhydrol XP2470 acrylic acid dispersion of German Baeyer (Bayer) company.Described polyethers hydrophilic modifying 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 the dipropylene glycol butyl ether, 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.
The preparation method of fan blade use polyurethane coating is as follows among the embodiment one to embodiment three:
(1) preparation of A component: add first deionized water by formula ratio, stir the lower anti-settling agent that slowly adds, the about 10min of high speed dispersion is after be homogeneous thickness paste liquid, add wetting dispersing agent and defoamer and stir 15min, then add the color stuffing Rutile type Titanium Dioxide, carbon black, process white, be uniformly dispersed rear with sand milling grind to fineness less than 30 μ m, remove by filter abrasive sand, add acrylic acid dispersion, film coalescence aid, matting agent, be uniformly dispersed and fineness less than 30 μ m, add at last thickening material, after dividing with deionized water adjustment solid, filter and package and be the A component.
(2) preparation of B component: it is even with polyethers hydrophilic modifying HDI tripolymer, polyester modification HDI tripolymer, 1-Methoxy-2-propyl acetate blending dispersion to press formula ratio, after water is adjusted solid and divided, filters and packages and is the B component.
(3) be that 5:1 mixes with A component and B component according to the quality proportioning, stir and namely get fan blade use polyurethane coating.During use, can be 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 components are mixed.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 of the fan blade use polyurethane coating among the embodiment one to embodiment three is carried out according to the preparation method of above-mentioned introduction, and whole production process is without unusually.According to practical situation, add water and adjust viscosity during construction, concrete dilution ratio is relevant with form of construction work, and general control is at 5-20%.Concrete dilution ratio is, is 15-20% during spraying, has good atomizing effect; 10-15% during brushing brushes respond well; 5-10% during roller coating, the plate surface state is good.After mixing, two components place 15 minutes construction effect the bests.The coating that is made by example detects according to international standard, all meets or exceeds the performance requriements of fan blade coating, and concrete data see Table 2 to shown in the table 4.
Fan blade use polyurethane coating detected result in the example one is as shown in table 2:
Fan blade use polyurethane coating detected result in the example two is as shown in table 3:
Fan blade use polyurethane coating detected result in the example three is as shown in table 4:
Above-described embodiment only is for the invention example clearly is described, and is not the restriction 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 need not also can't give all embodiments exhaustive.And the apparent variation of being amplified out thus or change still are among the protection domain of the invention claim.
Claims (10)
1. fan blade use polyurethane coating is characterized in that, is comprised of A component and B component, and the quality proportioning of A component and B component is 5:1;
The composition of A component and the massfraction of each material in the 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%;
The composition of B component and the massfraction of each material in the B component are: polyethers hydrophilic modifying HDI tripolymer: 60.0～70.0%, and polyester modification HDI tripolymer: 15.0～25.0%, 1-Methoxy-2-propyl acetate: 5.0～25.0%.
2. fan blade use polyurethane coating as claimed in claim 1 is characterized in that, described acrylic acid dispersion is the Bayhydrol XP2470 acrylic acid dispersion of German Baeyer (Bayer) company.
3. fan blade use polyurethane coating as claimed in claim 1 is characterized in that, described polyethers hydrophilic modifying HDI tripolymer is the Rhodocoat WT2102 of French Rhodia.
4. fan blade use polyurethane coating as claimed in claim 1 is characterized in that, described polyester modification HDI tripolymer is the Desmodur N3800 of German Bayer AG.
5. fan blade use polyurethane coating as claimed in claim 1 is characterized in that, described film coalescence aid is the dipropylene glycol butyl ether, and 1-Methoxy-2-propyl acetate is solubility promoter.
6. fan blade use polyurethane coating as claimed 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.
7. fan blade use polyurethane coating as claimed in claim 1 is characterized in that, described wetting dispersing agent is EFKA 4560.
8. fan blade use polyurethane coating as claimed in claim 1 is characterized in that, described defoamer is BYK-024.
9. fan blade use polyurethane coating as claimed in claim 1 is characterized in that, described anti-settling agent is Bentone EW, and described thickening material is RM-8W.
10. the preparation method of the described fan blade use of claim 1 polyurethane coating is characterized in that, comprises lower step:
(1) preparation of A component: add first deionized water by formula ratio, stir the lower anti-settling agent that slowly adds, high speed dispersion is after be homogeneous thickness paste liquid, add wetting dispersing agent and defoamer and stir 15min, then add color stuffing Rutile type Titanium Dioxide, carbon black and process white, be uniformly dispersed rear with sand milling grind to fineness less than 30 μ m, remove by filter abrasive sand, add acrylic acid dispersion, film coalescence aid and matting agent, be uniformly dispersed and fineness less than 30 μ m, add at last thickening material, after deionized water adjustment solid part, filter and package and be the A component;
(2) preparation of B component: it is even with polyethers hydrophilic modifying HDI tripolymer, polyester modification HDI tripolymer and 1-Methoxy-2-propyl acetate blending dispersion to press formula ratio, after water adjustment solid divides, filters and packages and is the B component;
(3) be that 5:1 mixes with A component and B component according to the quality proportioning, stir and namely get fan blade use polyurethane coating.
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| CN201210369635.XA CN102863892B (en) | 2012-09-27 | 2012-09-27 | Water-base polyurethane coating for fan blades and preparation method thereof |
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| CN201210369635.XA CN102863892B (en) | 2012-09-27 | 2012-09-27 | Water-base polyurethane coating for fan blades and preparation method thereof |
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| CN104277694A (en) * | 2014-09-28 | 2015-01-14 | 苏州长盛机电有限公司 | 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 |
| CN115537107A (en) * | 2022-09-27 | 2022-12-30 | 厦门双瑞船舶涂料有限公司 | Ice-water-coating-preventing polyurethane finish paint for wind power blade and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104277694A (en) * | 2014-09-28 | 2015-01-14 | 苏州长盛机电有限公司 | 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 |
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| 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 |
| CN115537107A (en) * | 2022-09-27 | 2022-12-30 | 厦门双瑞船舶涂料有限公司 | Ice-water-coating-preventing polyurethane finish paint for wind power blade 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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| CN102863892B (en) | 2014-12-17 |
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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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