CN113502116A - Roller-coating type weather-resistant wear-resistant wind power blade coating and preparation method thereof - Google Patents
Roller-coating type weather-resistant wear-resistant wind power blade coating and preparation method thereof Download PDFInfo
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- CN113502116A CN113502116A CN202110679898.XA CN202110679898A CN113502116A CN 113502116 A CN113502116 A CN 113502116A CN 202110679898 A CN202110679898 A CN 202110679898A CN 113502116 A CN113502116 A CN 113502116A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
A roller-coating type weather-resistant wear-resistant wind power blade coating and a preparation method thereof are disclosed, and the roller-coating type weather-resistant wear-resistant wind power blade coating is composed of the following raw materials in parts by weight: 10-20 parts of hydroxyl acrylic resin, 10-20 parts of fluorocarbon resin, 10-30 parts of polyester resin, 0.5-1 part of wetting dispersant, 0.01-0.5 part of defoaming agent, 0.5-1 part of thixotropic agent, 10-20 parts of titanium dioxide, 10-20 parts of quartz powder, 1-5 parts of polytetrafluoroethylene micropowder, 0.1-0.8 part of flatting agent, 2-5 parts of matting powder, 0.01-2 parts of drier, 10-20 parts of organic solvent and 10-20 parts of isocyanate curing agent. Mixing the raw materials except the isocyanate curing agent into a component A in batches for many times, and calculating the weight ratio of the component A to the isocyanate curing agent according to the hydroxyl content in the component A and the-NCO/-OH of 1.05-1.1 to obtain an isocyanate curing agent component B; and (3) preparing paint according to the weight ratio of 9:1 of the component A to the component B, uniformly mixing, and adding 3-5% of diluent to obtain the weather-resistant wear-resistant wind power blade coating. The paint has the advantages of mechanical strength, weather resistance, flexibility and impact resistance, and can form a smooth and flat surface in the coating process and improve the wear resistance of a paint film.
Description
Technical Field
The invention belongs to the technical field of wind power coatings, and particularly relates to a roller coating type weather-resistant wear-resistant wind power blade coating and a preparation method thereof.
Background
Wind power has developed rapidly in recent years as a clean and renewable energy source. Along with the increase of the loading amount, the demand of the wind power blade is greatly increased, and meanwhile, the quality requirement on the blade is higher and higher. The blade is one of the most basic and key parts of the wind turbine, and is damaged by ultraviolet rays, rainwater, hail, gravels and the like in the operation process, and is abraded by high-speed operation of the blade, so that effective measures need to be taken to protect the blade so as to prolong the service life of the blade. The coating has the advantages of easy molding and no seam, and is a protective measure widely adopted in the industry at present. Due to the high hoisting and maintenance costs of large blades, it is highly desirable to develop coatings with high weather resistance and abrasion resistance to prolong the service life of the blades and improve the working efficiency thereof. At present, the blade coating is mostly coated by adopting a spraying mode, has the characteristics of high efficiency and high surface flatness, but has the defects of large paint mist, high loss and high VOC (volatile organic compound) emission, the paint mist can be effectively eliminated, the loss and the VOC emission can be reduced in roller coating construction, but the surface flatness of the roller coating construction can not meet the quality requirement. Therefore, from the economic and environmental protection perspectives, the development of the roller coating type wind power blade coating is significant.
Chinese patent CN103725129A discloses a high weather-resistant megawatt wind turbine blade finish paint prepared by modified hydroxyl acrylic resin, which has good flexibility but does not relate to the wear resistance and weather resistance of a coating. In addition, the patent does not mention roll coating thickness and surface flatness of the coating.
Chinese patent CN1086397A discloses a graphene-based offshore wind power blade finish paint and a preparation method thereof, wherein the graphene-based offshore wind power blade finish paint is composed of hydroxyl acrylic resin, polyaspartic acid ester, graphene and the like, has good wear resistance and aging resistance, but the paint has low adhesive force, and the patent does not mention the roller coating thickness and surface flatness of the paint.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a roller coating type weather-resistant wear-resistant wind power blade coating and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: a roller-coating type weather-resistant wear-resistant wind power blade coating is composed of the following raw materials in parts by weight: 10-20 parts of hydroxyl acrylic resin, 10-20 parts of fluorocarbon resin, 10-30 parts of polyester resin, 0.5-1 part of wetting dispersant, 0.01-0.5 part of defoaming agent, 0.5-1 part of thixotropic agent, 10-20 parts of titanium dioxide, 10-20 parts of quartz powder, 1-5 parts of polytetrafluoroethylene micropowder, 0.1-0.8 part of flatting agent, 2-5 parts of matting powder, 0.01-2 parts of drier, 10-20 parts of organic solvent and 10-20 parts of isocyanate curing agent.
The hydroxyl acrylic resin is aliphatic hydroxyl acrylic resin, and the hydroxyl content is 1.5-4.5%.
The fluorine content of the fluorocarbon resin is 20-25%.
The polyester resin is aliphatic saturated polyester resin, and the hydroxyl content is 3-5%.
The wetting dispersant is one or a combination of several of BYK 163, BYK AT-203 and BYK 161.
The defoaming agent is one or the combination of BYK 8801 and BYK A530.
The thixotropic agent is one or a combination of organic bentonite, polyamide wax and modified polyurea.
The titanium dioxide is 325-mesh rutile titanium dioxide.
The quartz powder is 600-mesh quartz powder.
The average grain diameter of the polytetrafluoroethylene micro powder is 2-5 microns.
The leveling agent is one or a combination of EFKA 3034 and TEGO 415.
The drier is dibutyl tin dilaurate.
The organic solvent is one or a combination of more of dimethylbenzene, butyl acetate and PMA.
The isocyanate curing agent is one of N3390 and HI 190.
The invention provides a preparation method of a roller coating type weather-proof wear-resistant wind power blade coating, which comprises the following steps: step one, hydroxyl acrylic resin, fluorocarbon resin, polyester resin and part of organic solvent are sequentially added into a dispersion tank, uniformly mixed at a low speed (300 plus one material at 500 r/min), stirred at the low speed (300 plus one material at 500 r/min), sequentially added with wetting dispersant, defoamer, thixotropic agent and part of organic solvent, dispersed at a high speed (600 plus one material at 900 r/min) for 5-10 minutes, sequentially added with titanium dioxide, quartz powder and polytetrafluoroethylene micropowder, dispersed at a high speed (1000 plus one material at 1500 r/min) for 10-15 minutes, and then enter a sand mill for sand milling until the fineness is less than or equal to 30 micrometers. Adding a flatting agent and matting powder under stirring at a low speed (300 plus 500 r/min), dispersing for 15-20 minutes at a high speed (1000 plus 1500 r/min) until the matting powder is fully and uniformly dispersed, adding a drier and the residual organic solvent under stirring at a low speed (300 plus 500 r/min), and uniformly dispersing at a medium speed (600 plus 900 r/min) to obtain the component A.
And step two, according to the hydroxyl content in the component A, calculating the weight ratio of-NCO/-OH of 1.05-1.1 to the isocyanate curing agent to obtain the isocyanate curing agent component B.
Step three, preparing paint according to the weight ratio of 9:1 of the component A and the isocyanate curing agent component B, uniformly mixing, and adding 3-5% of diluent to obtain the weather-resistant wear-resistant wind power blade coating.
Compared with the prior art, the invention has the following beneficial effects:
1. the hydroxyl acrylic resin, the fluorocarbon resin and the polyester resin are physically blended and then react with the isocyanate curing agent to form a molecular chain interpenetrating network structure. The hydroxyl acrylic resin can endow the paint film with mechanical strength and weather resistance, the fluorocarbon resin can improve the weather resistance of the paint film, and the polyester resin can improve the flexibility of the paint film. The three are used in a matching way, so that the mechanical strength, weather resistance, flexibility and impact resistance of the coating can be ensured.
2. With the volatilization of the solvent, the fluorocarbon resin gradually migrates to the outer surface of the paint film due to the low surface tension during the drying and curing of the paint film. Meanwhile, the added polytetrafluoroethylene micro powder can be gradually enriched to the outer surface of the paint film due to the density difference and the surface characteristics. The synergistic effect of the two materials is beneficial to forming a smooth and flat surface in the roller coating process, and meanwhile, the wear resistance of a paint film is improved.
Detailed Description
The invention is further illustrated by the following examples.
Example 1
A roller-coating type weather-resistant wear-resistant wind power blade coating is composed of the following raw materials in parts by weight: 15 parts of hydroxyl acrylic resin, 15 parts of fluorocarbon resin, 10 parts of polyester resin, 0.5 part of wetting dispersant, 0.08 part of defoaming agent, 0.5 part of thixotropic agent, 15 parts of titanium dioxide, 15 parts of quartz powder, 3 parts of polytetrafluoroethylene micro powder, 0.5 part of flatting agent, 3 parts of matting powder, 0.02 part of drier, 12 parts of organic solvent and 10 parts of isocyanate curing agent. The preparation method comprises the following steps:
step one, hydroxyl acrylic resin, fluorocarbon resin, polyester resin and part of organic solvent are sequentially added into a dispersion tank, uniformly mixed at a low speed (300 plus one material at 500 r/min), stirred at the low speed (300 plus one material at 500 r/min), sequentially added with wetting dispersant, defoamer, thixotropic agent and part of organic solvent, dispersed at a high speed (600 plus one material at 900 r/min) for 5-10 minutes, sequentially added with titanium dioxide, quartz powder and polytetrafluoroethylene micropowder, dispersed at a high speed (1000 plus one material at 1500 r/min) for 10-15 minutes, and then enter a sand mill for sand milling until the fineness is less than or equal to 30 micrometers. Adding a flatting agent and matting powder under stirring at a low speed (300 plus 500 r/min), dispersing for 15-20 minutes at a high speed (1000 plus 1500 r/min) until the matting powder is fully and uniformly dispersed, adding a drier and the residual organic solvent under stirring at a low speed (300 plus 500 r/min), and uniformly dispersing at a medium speed (600 plus 900 r/min) to obtain the component A.
And step two, according to the hydroxyl content in the component A, calculating the weight ratio of-NCO/-OH of 1.05-1.1 to the isocyanate curing agent to obtain the isocyanate curing agent component B. Preparing paint according to the weight ratio of 9:1 of the component A and the isocyanate curing agent component B, uniformly mixing, adding 3-5% of diluent, and performing roller coating.
Example 2
A roller-coating type weather-resistant wear-resistant wind power blade coating is composed of the following raw materials in parts by weight: 20 parts of hydroxyl acrylic resin, 20 parts of fluorocarbon resin, 18 parts of polyester resin, 0.8 part of wetting dispersant, 0.5 part of defoaming agent, 0.8 part of thixotropic agent, 10 parts of titanium dioxide, 10 parts of quartz powder, 5 parts of polytetrafluoroethylene micro powder, 0.1 part of flatting agent, 2 parts of matting powder, 2 parts of drier, 20 parts of organic solvent and 15 parts of isocyanate curing agent. The preparation method comprises the following steps:
step one, hydroxyl acrylic resin, fluorocarbon resin, polyester resin and part of organic solvent are sequentially added into a dispersion tank, uniformly mixed at a low speed (300 plus one material at 500 r/min), stirred at the low speed (300 plus one material at 500 r/min), sequentially added with wetting dispersant, defoamer, thixotropic agent and part of organic solvent, dispersed at a high speed (600 plus one material at 900 r/min) for 5-10 minutes, sequentially added with titanium dioxide, quartz powder and polytetrafluoroethylene micropowder, dispersed at a high speed (1000 plus one material at 1500 r/min) for 10-15 minutes, and then enter a sand mill for sand milling until the fineness is less than or equal to 30 micrometers. Adding a flatting agent and matting powder under stirring at a low speed (300 plus 500 r/min), dispersing for 15-20 minutes at a high speed (1000 plus 1500 r/min) until the matting powder is fully and uniformly dispersed, adding a drier and the residual organic solvent under stirring at a low speed (300 plus 500 r/min), and uniformly dispersing at a medium speed (600 plus 900 r/min) to obtain the component A.
And step two, according to the hydroxyl content in the component A, calculating the weight ratio of-NCO/-OH of 1.05-1.1 to the isocyanate curing agent to obtain the isocyanate curing agent component B. Preparing paint according to the weight ratio of 9:1 of the component A to the component B, uniformly mixing, adding 3-5% of diluent, and performing roller coating.
Example 3
A roller-coating type weather-resistant wear-resistant wind power blade coating is composed of the following raw materials in parts by weight: 10 parts of hydroxy acrylic resin, 10 parts of fluorocarbon resin, 30 parts of polyester resin, 1 part of wetting dispersant, 0.01 part of defoaming agent, 1 part of thixotropic agent, 20 parts of titanium dioxide, 20 parts of quartz powder, 1 part of polytetrafluoroethylene micro powder, 0.8 part of flatting agent, 5 parts of matting powder, 1 part of drier, 10 parts of organic solvent and 20 parts of isocyanate curing agent. The preparation method comprises the following steps:
step one, hydroxyl acrylic resin, fluorocarbon resin, polyester resin and part of organic solvent are sequentially added into a dispersion tank, uniformly mixed at a low speed (300 plus one material at 500 r/min), stirred at the low speed (300 plus one material at 500 r/min), sequentially added with wetting dispersant, defoamer, thixotropic agent and part of organic solvent, dispersed at a high speed (600 plus one material at 900 r/min) for 5-10 minutes, sequentially added with titanium dioxide, quartz powder and polytetrafluoroethylene micropowder, dispersed at a high speed (1000 plus one material at 1500 r/min) for 10-15 minutes, and then enter a sand mill for sand milling until the fineness is less than or equal to 30 micrometers. Adding a flatting agent and matting powder under stirring at a low speed (300 plus 500 r/min), dispersing for 15-20 minutes at a high speed (1000 plus 1500 r/min) until the matting powder is fully and uniformly dispersed, adding a drier and the residual organic solvent under stirring at a low speed (300 plus 500 r/min), and uniformly dispersing at a medium speed (600 plus 900 r/min) to obtain the component A.
And step two, according to the hydroxyl content in the component A, calculating the weight ratio of-NCO/-OH of 1.05-1.1 to the isocyanate curing agent to obtain the isocyanate curing agent component B. Preparing paint according to the weight ratio of 9:1 of the component A to the component B, uniformly mixing, adding 3-5% of diluent, and performing roller coating.
The paint film properties were tested as follows:
the preferred embodiments of the present invention have been described above, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The utility model provides a resistant wear-resisting wind-powered electricity generation blade coating of roller coat type that waits which characterized in that: the composition comprises the following raw materials in parts by weight: 10-20 parts of hydroxyl acrylic resin, 10-20 parts of fluorocarbon resin, 10-30 parts of polyester resin, 0.5-1 part of wetting dispersant, 0.01-0.5 part of defoaming agent, 0.5-1 part of thixotropic agent, 10-20 parts of titanium dioxide, 10-20 parts of quartz powder, 1-5 parts of polytetrafluoroethylene micropowder, 0.1-0.8 part of flatting agent, 2-5 parts of matting powder, 0.01-2 parts of drier, 10-20 parts of organic solvent and 10-20 parts of isocyanate curing agent.
2. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the hydroxy acrylic resin is aliphatic hydroxy acrylic resin, and the content of hydroxyl is 1.5-4.5%.
3. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the fluorine content of the fluorocarbon resin is 20-25%.
4. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the polyester resin is aliphatic saturated polyester resin, and the hydroxyl content is 3-5%.
5. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the thixotropic agent is one or a combination of organic bentonite, polyamide wax and modified polyurea.
6. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the quartz powder is 600-mesh quartz powder.
7. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the average grain diameter of the polytetrafluoroethylene micro powder is 2-5 microns.
8. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the drier is dibutyl tin dilaurate.
9. The roller-coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the organic solvent is one or a combination of more of dimethylbenzene, butyl acetate and PMA.
10. The preparation method of the roller coating type weather-resistant and wear-resistant wind power blade coating as claimed in claim 1, wherein: the method comprises the following steps:
step one, hydroxyl acrylic resin, fluorocarbon resin, polyester resin and part of organic solvent are sequentially added into a dispersion tank, uniformly mixed at 500r/min under 300-500r/min, and sequentially added with wetting dispersant under 300-500r/min stirring, dispersing for 5-10 minutes at 900 DEG/min by using a defoaming agent, a thixotropic agent and a part of organic solvent, sequentially adding titanium dioxide, quartz powder and polytetrafluoroethylene micropowder, dispersing for 10-15 minutes at 1500 DEG/min by using 1000 DEG/min, then sanding the mixture in a sand mill until the fineness is less than or equal to 30 micrometers, adding a flatting agent and matting powder under stirring at 500 DEG/min by using 300 DEG/min, dispersing for 15-20 minutes at 1500 DEG/min by using 1000 DEG/min until the matting powder is fully and uniformly dispersed, adding a drier and the rest of organic solvent under stirring at 500 DEG/min by using 300 DEG/min, and dispersing uniformly at 900 DEG/min by using 600 DEG/min to obtain a component A;
step two, according to the hydroxyl content in the component A, calculating the weight ratio of-NCO/-OH of 1.05-1.1 to isocyanate curing agent to obtain an isocyanate curing agent component B;
step three, preparing paint according to the weight ratio of 9:1 of the component A and the isocyanate curing agent component B, uniformly mixing, and adding 3-5% of diluent to obtain the weather-resistant wear-resistant wind power blade coating.
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| CN114085599A (en) * | 2021-10-27 | 2022-02-25 | 深圳市深赛尔股份有限公司 | Wind power blade coating with adjustable pot life 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 |
| CN115895352A (en) * | 2022-12-13 | 2023-04-04 | 深圳市深赛尔股份有限公司 | Wind power blade coating combination |
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Application publication date: 20211015 |
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