CN115537107B - Wind power blade ice-coating-preventing water polyurethane finish paint and preparation method thereof - Google Patents
Wind power blade ice-coating-preventing water polyurethane finish paint and preparation method thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 42
- 239000003973 paint Substances 0.000 title claims abstract description 37
- 239000004814 polyurethane Substances 0.000 title claims abstract description 21
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- 238000000576 coating method Methods 0.000 claims abstract description 81
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- 238000006243 chemical reaction Methods 0.000 claims description 36
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- 239000006185 dispersion Substances 0.000 claims description 24
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- 239000012153 distilled water Substances 0.000 claims description 19
- AZIQALWHRUQPHV-UHFFFAOYSA-N prop-2-eneperoxoic acid Chemical compound OOC(=O)C=C AZIQALWHRUQPHV-UHFFFAOYSA-N 0.000 claims description 19
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical group O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 18
- 239000004408 titanium dioxide Substances 0.000 claims description 17
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 11
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- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 5
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- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 4
- UYAAVKFHBMJOJZ-UHFFFAOYSA-N diimidazo[1,3-b:1',3'-e]pyrazine-5,10-dione Chemical compound O=C1C2=CN=CN2C(=O)C2=CN=CN12 UYAAVKFHBMJOJZ-UHFFFAOYSA-N 0.000 claims description 4
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4063—Mixtures of compounds of group C08G18/62 with other macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
-
- 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
-
- 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
-
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention relates to the field of special functional coatings, in particular to an anti-icing water polyurethane finish paint for wind power blades and a preparation method thereof. The anti-icing water polyurethane finishing paint for the wind power blade is characterized in that: the raw materials comprise a component A and a component B; the component A comprises an aqueous dispersing agent, an aqueous defoaming agent, a first cosolvent, an aqueous hydroxy acrylic resin, a thixotropic agent, a filler, matting powder, an abrasion-resistant auxiliary agent, an ultraviolet light absorbent and an aqueous polyester resin; the component B comprises a curing agent and a second cosolvent. The wind power blade ice-coating-preventing water polyurethane finish paint provided by the invention has the characteristics of high strength, high flexibility, high wear resistance and ice coating prevention, and has great domestic substitution potential.
Description
Technical Field
The invention relates to the field of special functional coatings, in particular to an anti-icing water polyurethane finish paint for wind power blades and a preparation method thereof.
Background
In recent years, people have increasingly become conscious of low carbon and environmental protection, and wind power technology is rapidly developed under the support of related low carbon and environmental protection policies. The wind power blade is used as a core part of the wind turbine, and accounts for more than one third of the total manufacturing cost. However, the wind turbine generator system has a severe running environment, and wind turbine blades are corroded by ultraviolet ageing, high-strength mechanical impact, ice coating and the like, so that the service life and the working efficiency of the wind turbine generator system are greatly reduced. Therefore, effective coating protection is essential.
The wind power blade protective coating market is occupied by international coating manufacturers for a long time, and the technical level of domestic brands is in a state of falling behind for a long time. Because of the characteristics of high weather resistance, high strength and high flexibility, the wind power blade protective coating system mainly adopts a polyurethane coating system, and the wind power blade protective coating on the market mainly adopts solvent-based polyurethane coating at first, but with the great development of offshore wind power and the environmental protection policy requirement, the solvent-based polyurethane coating is still used for inland wind power blade protection at present, and coastal and offshore wind power already adopt environmental protection type polyurethane coating systems, including water-based polyurethane coating and solvent-free polyurethane coating, and the wind power blade protective coating is developed to the environmental protection type coating system as a whole. Therefore, the wind power blade water-based polyurethane finishing paint is used as one of environment-friendly wind power blade paint system matching products, and has wide development potential. However, since the blade operates at a high tip-first rate, it is subject to significant mechanical impact from environmental media such as sand dust and rain, and the blade is exposed to ultraviolet light for a long period of time. Therefore, in the wind power blade coating system, the requirements on the performance of the finish paint are extremely strict, particularly the mechanical performance, the high strength, the high toughness, the high wear resistance and the high low-temperature elongation are required, and the fresh and domestic water-based resin raw materials can meet the requirements. In addition, the temperature in winter in part of coastal areas is low, the air humidity is high, the wind power blade is easy to freeze in a low-temperature high-humidity environment, the power generation efficiency is reduced, and the requirement on the anti-icing performance of the finish paint is provided.
Disclosure of Invention
In order to solve the defects that the existing wind power blade is easy to freeze and the power generation efficiency is reduced in a low-temperature high-humidity environment, the invention provides an ice-coating-preventing water polyurethane finishing paint for wind power blades, which comprises a first component and a second component;
the component A comprises an aqueous dispersing agent, an aqueous defoaming agent, a first cosolvent, aqueous hydroxy acrylic resin, a thixotropic agent, a filler, extinction powder, an abrasion-resistant auxiliary agent, an ultraviolet light absorbent and aqueous polyester resin;
the component B comprises a curing agent and a second cosolvent.
In some embodiments, the components are as follows:
in some embodiments, the solvent is distilled water.
In some embodiments, the aqueous dispersant is one or a combination of UKa 690W, BYK-191 or SN-5040.
In some embodiments, the aqueous defoamer is one or a combination of eukart 290W, FG-5 or NXZ.
In some embodiments, the first co-solvent is one or a combination of dipropylene glycol butyl ether DPNB, diethylene glycol butyl ether DBG, or propylene glycol diacetate PGDA.
In some embodiments, the aqueous hydroxyacrylate resin has a solids content of 42% to 50%, a hydroxyl content of 3.8 to 4.2%, a viscosity of 300 to 3000cps, and an average relative molecular mass of 10000 to 40000.
In some embodiments, the thixotropic agent is a modified bentonite LT.
In some embodiments, the filler includes titanium dioxide, feldspar powder, and carbon fiber.
In some embodiments, the mass ratio of the titanium dioxide R996 to the feldspar powder CY-1001 to the carbon fiber is 21 (4-5) to 0-1. Preferably, the titanium dioxide is R996, the feldspar powder is CY-1001, and the carbon fiber is carbon nanotube AH of Henan Crabb nano carbon material Co.
In some embodiments, the matting agent is one or a combination of HP270, matting agent TSA-560N, M, or M5.
In some embodiments, the wear aid is a PTFE-1004A wax emulsion.
In some embodiments, the ultraviolet Light absorber is one or a combination of Tinuvin 400-DW, tinuvin 123-DW, chiguard 5400WB, chiguard101WB, and Light 951.
In some embodiments, the aqueous polyester resin has a solids content of 30% to 45%, a hydroxyl content of 0 to 1.5%, a viscosity of 300 to 3000cps, and an average relative molecular mass of 10000 to 40000.
In some embodiments, the curing agent is an aqueous polyisocyanate curing agent having a solids content of 100%, an NCO content of 15-20%, and an average relative molecular mass of 1000-3000.
In some embodiments, the second co-solvent is one or a combination of dipropylene glycol butyl ether DPNB, diethylene glycol butyl ether DBG, or propylene glycol diacetate PGDA.
The invention also provides a preparation method of the wind power blade water-based polyurethane finish paint, which comprises the following steps:
(1) The preparation process of the component A comprises the following steps: adding a formula amount of solvent, a first cosolvent, aqueous resin, a dispersing agent and a defoaming agent into a reaction vessel, and then dispersing for 1min at 500 r/min; adding thixotropic agent with the formula amount, and dispersing for 10min at 4000 r/min; then adding the filler and the extinction powder in the formula amount, and dispersing for 30-40 min at 3500r/min until the fineness of the coating is less than 40 mu m; then the dispersion rate is reduced to 1000r/min, and the aqueous polyester resin, the wear-resistant auxiliary agent and the ultraviolet light absorber are added for dispersion for 10min, so that the component A is obtained.
(2) The preparation process of the component B comprises the following steps: the curing agent and the second cosolvent with the formula amounts are weighed and added into a reaction vessel, and then dispersed for 3min at 500r/min to obtain the component B.
Based on the above, compared with the prior art, the invention has the following beneficial effects:
1. the anti-icing water polyurethane finishing paint for the wind power blade takes poly-polyisocyanate with polyfunctional degree and long-chain branched chain structure as a curing agent, and adopts polyester resin to modify polyurethane resin to form a polyester-polyurethane crosslinked interpenetrating network structure. The polyester resin is used as a soft segment, so that the flexibility of the film forming material is greatly improved, and the hydroxy acrylic ester is used as a hard segment, so that the film forming material has excellent strength; in addition, the multi-functionality and long chain branching structure of the curing agent further improves the strength and flexibility of the resin. The mechanical properties of the film forming material are regulated and controlled by regulating the proportion of polyester resin to hydroxy acrylic ester and the content of the curing agent, so that the high-strength and high-flexibility aqueous resin system is obtained.
2. According to the invention, carbon fibers can be selectively introduced into the system, so that the mechanical properties of the coating are further improved. On one hand, the carbon fiber is a two-dimensional nano material, has a small-size effect, can be filled in a gap in the coating, and reduces defects; in addition, the carbon fiber has higher tensile strength, can inhibit defects and expansion of the coating under the action of external stress, and further improves the flexibility and strength of the coating, so that the wind power blade ice-coating-preventing water polyurethane finishing paint provided by the invention can adapt to different strength performance indexes.
3. According to the invention, the wax emulsion is introduced into the system, so that the wear resistance of the coating is improved, the surface tension of the coating is reduced, and the high wear resistance and ice coating prevention functions of the coating are realized. The fluorine atoms on the surface of the wax particles have low surface energy, and in the curing process of the coating, the wax molecules can migrate to the surface of the coating under the action of the fluorine atoms, so that the surface energy of the coating is reduced, the surface of the coating is smoother, and the wear resistance and the ice coating prevention function of the coating are improved.
4. According to the ice-coating-preventing water polyurethane finishing paint for the wind power blade, provided by the invention, through the combined action of the polyester modified polyurethane resin system, the carbon fiber and the wax emulsion, the coating structure with smooth surface, internally nano-reinforced and cross-linked interpenetrating is obtained, so that the final product has the characteristics of high strength, high flexibility, high wear resistance and ice coating prevention.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure and/or components pointed out in the written description and claims.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in conjunction with the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some, but not all, embodiments of the present invention; the technical features designed in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that all terms used in the present invention (including technical terms and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs and are not to be construed as limiting the present invention; it will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention also provides the following examples and comparative formulations (unit: parts by weight) as shown in Table 1 below:
table 1 example and comparative formulation
Specifically, the preparation process of examples and comparative examples is:
comparative example 1
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 96g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 96g of the aqueous polyester resin and 7.2g of Light951 were added, and dispersion was carried out for 10 minutes, to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 26g of a curing agent and 2.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Comparative example 2
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 128g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 64g of the aqueous polyester resin and 7.2g of Light951 were added, and dispersion was carried out for 10 minutes, to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 34.4g of a curing agent and 14.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Comparative example 3
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of the aqueous polyester resin and 7.2g of Light951 were added, and dispersed for 10min to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 38.4g of a curing agent and 16.4g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Comparative example 4
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 153.6g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, and 38.4g of the aqueous polyester resin and 7.2g of Light951 were added and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 40.8g of a curing agent and 17.6g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Comparative example 5
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of the aqueous polyester resin and 7.2g of Light951 were added, and dispersed for 10min to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 34.8g of a curing agent and 14.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Comparative example 6
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of the aqueous polyester resin and 7.2g of Light951 were added, and dispersed for 10min to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 42g of a curing agent and 18g of PGDA were weighed and added to a reaction vessel, followed by dispersion at 500r/min for 3min to obtain a component B.
Comparative example 7
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of the aqueous polyester resin and 7.2g of Light951 were added, and dispersed for 10min to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 45.2g of a curing agent and 19.2g of PGDA were weighed and added to a reaction vessel, followed by dispersion at 500r/min for 3min to obtain a component B.
Comparative example 8
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of the aqueous polyester resin and 7.2g of Light951 were added, and dispersed for 10min to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 1
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 8g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 2
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 12g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 3
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 16g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 4
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium dioxide, 20g of feldspar powder CY-1001 and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 20g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 5
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium white, 20g of feldspar powder CY-1001, 1g of carbon nano tube AH and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 16g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 6
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium white, 20g of feldspar powder CY-1001, 2g of carbon nano tube AH and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 16g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 7
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium white, 20g of feldspar powder CY-1001, 3g of carbon nano tube AH and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 16g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
Example 8
(1) The preparation process of the component A comprises the following steps: 53.2g of distilled water, 12g of DBG, 12g of DPNB, 144g of aqueous hydroxyacrylate, 2g of UKa 690W and 1.2g of UKa 290W are added into a reaction vessel, and then dispersed for 1min at 500 r/min; then adding 1.6g of modified bentonite LT, and dispersing for 10min at 4000 r/min; then 84g of titanium white, 20g of feldspar powder CY-1001, 4g of carbon nano tube AH and 8g of HP270 are added, and the mixture is dispersed for 30 to 40 minutes at 3500r/min until the fineness of the coating is less than 40 mu m; then, the dispersion rate was lowered to 1000r/min, 48g of an aqueous polyester resin, 16g of PTFE-1004A and 7.2g of Light951 were added, and dispersed for 10 minutes to obtain a component A.
(2) The preparation process of the component B comprises the following steps: 48.8g of a curing agent and 20.8g of PGDA were weighed into a reaction vessel, and then dispersed at 500r/min for 3min to obtain a component B.
It should be noted that the specific parameters or some common reagents in the above embodiments are specific embodiments or preferred embodiments under the concept of the present invention, and are not limited thereto; and can be adaptively adjusted by those skilled in the art within the concept and the protection scope of the invention.
In addition, unless otherwise specified, the starting materials employed may also be commercially available products conventionally used in the art or may be prepared by methods conventionally used in the art.
The following tests were carried out for each example and comparative example:
abrasion resistance test: the abrasion resistance test of the rubber wheel method is carried out according to the GB/T1768-2006 standard. And after the components A and B of the finish paint are uniformly mixed according to the mass formula proportion, immediately adopting air spraying to coat the polished and cleaned glass fiber reinforced plastic substrate with the thickness of 100 multiplied by 3mm, and obtaining a test sample plate. After the test sample plate is cured for 7 days at the temperature of (23+/-2), an abrasion resistance test is carried out by adopting an abrasion tester, the weight is 1kg, and the model of the grinding wheel is CS-10. The paint film should be pre-ground before testing, and the grinding wheel should be renewed before testing each sample and after 500 revolutions each, and three templates are measured in parallel.
Room temperature tensile test: tensile tests were carried out at 23.+ -. 2 ℃ and 50% humidity according to ISO 527-3-2018 standard. After the components A and B of the finish paint are uniformly mixed according to the formula proportion, immediately adopting an air spraying process to carry out one-step coating on the surface of a polytetrafluoroethylene plate, controlling the thickness of a dry film of each coating to be about 100 mu m, naturally drying for 24 hours after finishing the coating, then placing the coated polytetrafluoroethylene plate at 23+/-2 ℃ and 50% humidity for curing for 7 days, stripping a paint film on the polytetrafluoroethylene plate, and cutting the stripped paint film into a spline with the length of more than or equal to 100mm and the width of 10mm by using an artist knife. The width and thickness of the sample bars were measured, 3 bars were measured for each sample, the tensile strength and elongation at break were recorded, and the median was taken as the experimental result.
Low temperature elongation test: the low temperature elongation test was performed at-40℃according to ISO 527-3-2018 standard. After the components A and B of the finish paint are uniformly mixed according to the formula proportion, immediately adopting an air spraying process to carry out one-step coating on the surface of the polytetrafluoroethylene plate, controlling the thickness of a dry film of each coating to be about 100 mu m, naturally drying for 24 hours after finishing the coating, and continuously adopting the same spraying process to spray three times, wherein the total dry film thickness is about 400 mu m. And (3) placing the coated polytetrafluoroethylene plate at 23+/-2 ℃ and 50% humidity for curing for 7 days, then stripping the paint film on the polytetrafluoroethylene plate, and cutting the stripped paint film into sample strips with the length of more than or equal to 100mm and the width of 10mm by using a utility knife. The width, thickness and median of the bars were measured at-40 ℃ using a tensile machine, 3 bars were measured for each sample, and tensile strength and elongation at break were recorded as experimental results.
Water contact angle test: the water contact angle test was performed as specified in GB/T23764-2009. After the components A and B of the finishing paint are uniformly mixed according to the mass formula proportion, the finishing paint is immediately coated on a glass slide with the thickness of 76.2 multiplied by 25.4 multiplied by (1-1.2) mm by adopting air spraying. After the coated sample was cured at (23.+ -.2) ℃ for 7 days, 5 points were selected on the surface of the paint film, the water contact angle thereof was measured by a contact angle meter, the liquid drop used in the test procedure was distilled water, and the liquid drop volume was set to 5. Mu.L.
TABLE 2 influence of the ratio of Soft to hard resins on the mechanical Properties of the coating
Comparative examples 1, 2, 3 and 4 are formulations of different soft (aqueous polyester resin) hard (aqueous hydroxyacrylate resin) resin ratios of 1:1, 1:2, 1:3 and 1:4, respectively, and the relevant coating mechanical properties test results are shown in table 2. The results show that: the elongation at break of the coating is firstly increased from 53.8% to 78.5% and then decreased to 62.4, the tensile strength of the coating is firstly increased from 2.2MPa to 7.2MPa and then decreased to 6.1MPa along with the decrease of the ratio of the soft segment to the hard segment from 1:1 to 1:4, and when the ratio of the soft segment to the hard segment is 1:3, the elongation at break and the tensile strength reach larger values simultaneously, namely 78.5% and 7.2MPa respectively. Therefore, when the ratio of the soft segment to the hard segment is 1:3, the mechanical property of the resin system is better. In addition, as the ratio of the soft segment to the hard segment is reduced by 1:1 to 1:4, the loss of the coating is firstly reduced to 131.4mg from 245.2 and then is increased to 152.4mg, when the ratio of the soft segment to the hard segment is 1:3, the loss of the coating is lower, and the corresponding formula has better wear resistance; as the ratio of the soft segment to the hard segment is reduced from 1:1 to 1:4, the water contact angle of the coating gradually increases from 67.1 to 73.5 degrees, which shows that the higher the content of the hard segment, the larger the water contact angle, but the smaller the water contact angle increases, the less the influence of the resin system on the water contact angle of the coating is.
TABLE 3 influence of the excess percentage of curing agent on the mechanical properties of the coating
Comparative examples 5, 3, 6, 7 and 8 are formulations with varying percentages of excess curing agent, 0, 10, 20, 30 and 40% respectively, and the results of the relevant coating mechanical property tests are shown in table 3. The results show that: as the excessive percentage of the curing agent is increased from 0 to 40 percent, the elongation at break of the coating is increased from 63.4 percent to 91.6 percent, the tensile strength is increased from 6.4MPa to 8.1MPa as a whole, the abrasion loss is reduced from 131.4 to 115.5mg, and the water contact angle is increased from 71.4 to 81.6 degrees, so that the excessive curing agent is increased by 40 percent, the mechanical property and the abrasion resistance of the coating are better, and the water contact angle is higher.
TABLE 4 influence of parts of the abrasion resistance aid PTFE-1004A in the formulation on the abrasion resistance and contact angle of the coating
Comparative example 8, example 1, example 2, example 3 and example 4 are formulations of different abrasion resistance aids PTFE-1004A parts, PTFE-1004A parts being 0, 2, 3, 4 and 5 respectively, and the results of the measurements of the abrasion resistance and water contact angle of the relevant coatings are shown in Table 4. The results show that: as the part of the PTFE-1004A is increased from 0 to 5 in the formula, the elongation at break and the tensile strength of the coating are less changed and are respectively between 87.4 and 93.2 percent and 7.9 and 8.3 MPa; the loss of the coating gradually decreases from 115.5mg to 63.2mg, and the wear resistance is greatly improved; meanwhile, the coating water contact angle gradually increases from 81.6 ° to 103.1 °. Although example 4 has better abrasion resistance and higher water contact angle, the abrasion resistance and water contact angle are not so poor as those of example 3, and the number of parts of PTFE-1004A is preferably selected to be 4 in view of cost.
TABLE 5 influence of parts of carbon nanotubes AH in formulation on mechanical Properties and abrasion resistance of coating
Examples 3, 5, 6, 7 and 8 are formulations of different parts of carbon nanotubes AH, and the parts of carbon nanotubes AH in the formulations are 0, 0.25, 0.5, 0.75 and 1, respectively, and the relevant coating mechanical properties and abrasion resistance test results are shown in table 5, and the test items of low temperature elongation/(-40 ℃,%) are increased compared with the previous test. As shown in table 5, in the formulation, as the AH fraction of the carbon nanotubes increases from 0 to 1, the elongation at break of the coating layer increases from 87.4% to 132.9% and then decreases to 45.4%, and when the AH fraction of the carbon nanotubes is 0.5, the elongation at break reaches a larger value of 132.9%; the tensile strength of the coating is gradually increased from 7.9MPa to 13.6MPa; the low-temperature elongation at break of the coating is firstly increased from 5.9% to 10.1% and then reduced to 4.2%, and when the AH part of the carbon nano tube is 0.5, the low-temperature elongation reaches a larger value of 10.1%; the abrasion loss of the coating is reduced from 64.6mg to 18.7mg, and the abrasion loss reduction rate is stable when the added part of the carbon nano tube AH reaches 0.5; the water contact angle of the coating has small change, and the water contact angle is between 102.4 and 107.1 degrees. From this, it was found that the coating composition was excellent when the carbon nanotube AH content was 0.5 part.
Table 6 better formulation Properties and well known blade manufacturer index requirements
The specific method for the rest of the test items in the indexes is as follows:
fineness test: fineness tests were performed according to GB/T1724-2019 standard.
Drying time test: the test sample plate is a tinplate with the thickness of 120 multiplied by 50 multiplied by 0.28mm, the surface treatment mode is that after polishing by using 360-mesh sand paper, the surface of the tinplate is wiped by using absolute ethyl alcohol dipped by non-woven fabrics, and then the components A and B of the coating are prepared according to the formula proportion, and the mixture is brushed on the surface of the sample plate after being uniformly stirred. The panels were left at room temperature and tested for tack-free and tack-free times according to GB/T1728.
Viscosity test: the viscosity test was carried out using a digital display stormer viscometer according to the ISO 2884-1 standard. And mixing the components A and B according to the formula proportion, uniformly stirring, adjusting the temperature of the sample to (23+/-2) DEG C by adopting a hot water bath or an ice water bath, testing the viscosity of the sample under a digital display type stormer viscometer, and recording the result.
Testing the normal temperature pot life: the normal temperature pot life test is carried out according to GB/T31416-2015 standard.
Room temperature polishable time test: the polishing time test at room temperature is carried out according to GB/T1770-2008 standard.
Adhesion measurement: the adhesion test was carried out according to the 9.4.2 standard in GB/T5210-2006. And (3) preparing the components A and B of the finish paint according to the formula proportion, uniformly stirring, and coating the finish paint on the polished and cleaned glass fiber reinforced plastic substrate with the thickness of 150 multiplied by 100 multiplied by 10mm by adopting a spraying method to obtain a test sample plate. Curing the test sample plate for 7 days under the conditions of (23+/-2) DEG C and (50+/-5) percent of humidity, polishing the surface of the test sample plate by adopting 360-mesh sand paper, wiping the surface of the test sample plate by adopting non-woven fabric dipped with absolute ethyl alcohol, uniformly coating epoxy AB glue on the surface of an unpainted and cleaned test column, and connecting the test column surface coated with the adhesive with the coating layer in the curing period of the adhesive. After the adhesive is cured, the adhesive is cut through to a substrate along the circumference of the test column by using a cutting device, and then tested by using a pulling machine. Six replicates were measured for each template.
And (3) solid content testing: the solid content test was carried out according to GB/T1725-2007 standard. Weighing the mass m0 of the clean drying dish, respectively stirring uniformly before mixing the components A and B, weighing the sample mass m1 of the components A and B which are fully and uniformly mixed according to the formula example, paving uniformly in the dish, heating the mixture in an oven at 110 ℃ for 2 hours, and transferring the dish to a dryer to cool the dish to room temperature or placing the dish in dust-free atmosphere for cooling after heating. The mass m2 of the dish and the remainder was weighed to the nearest 1mg and measured 3 times in parallel. Data for each measurement m0, m1, m2 were recorded and the mass fraction of non-volatiles w= [ (m 2-m 0)/(m 1-m 0) ]. Times.100 was calculated and averaged.
Sag resistance test: sag resistance tests were performed according to GB/T9264-2012 standard. The components A and B of the finish paint are prepared according to the formula proportion, stirred uniformly, and the mixture A and B is scraped and coated on a glass plate which is horizontally placed by a sagging coater with scales. Immediately the test panel was placed vertically, the paint strips were horizontal, and the strips of smaller film thickness were placed on top.
Gloss (60 °) test: gloss (60 ℃) testing was performed as specified in GB/T9754-2007. After the components A and B of the finish paint are uniformly mixed according to the formula proportion, the finish paint is immediately coated on a polished and cleaned glass fiber reinforced plastic substrate with the thickness of 150 multiplied by 100 multiplied by 10mm by adopting air spraying, and after the coating is finished, the finish paint is naturally dried for 24 hours, and the gloss (60 DEG) of the surface of a paint film is tested by adopting a gloss meter.
From the foregoing study, a preferred formulation example 6 was obtained, whose performance and market index requirements are shown in Table 6. The results in Table 6 show that the performance of example 6 fully meets the index requirements and has the characteristics of high strength, high flexibility, high wear resistance and ice coating resistance.
In summary, compared with the prior art, the wind-power blade ice-coating-preventing water polyurethane finish paint provided by the invention uses the polyisocyanate with the polyfunctional degree and the long-chain branched structure as the curing agent, and the high-strength and high-flexibility coating is obtained by constructing a polyester-polyurethane crosslinked interpenetrating network structure and breaking through a coating mechanical property regulation technology by utilizing a carbon fiber reinforcement technology; and introducing wax emulsion, constructing a smooth surface with low surface energy, endowing the coating with an anti-icing function, and further cooperating with a carbon fiber reinforcing effect to obtain the high wear-resistant coating. Has the characteristics of high strength, high flexibility, high wear resistance and ice coating resistance, and has great domestic substitution potential.
In addition, it should be understood by those skilled in the art that although many problems exist in the prior art, each embodiment or technical solution of the present invention may be modified in only one or several respects, without having to solve all technical problems listed in the prior art or the background art at the same time. Those skilled in the art will understand that nothing in one claim should be taken as a limitation on that claim.
Although terms such as a component a, a component b, etc. are more used herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention; the terms first, second, and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The following should be explained: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. The ice-water-resistant polyurethane finishing paint for the wind power blade is characterized in that: the raw materials comprise a component A and a component B;
the component A comprises the following raw materials in parts by weight:
solvents 10 to 16
0.3 to 0.5 of water-based dispersant
0.2 to 0.4 percent of water-based defoaming agent
First cosolvent 4-8
24 to 38.4 portions of water-based hydroxy acrylic resin
Thixotropic agent 0.3-0.6
Fillers 22 to 28
Extinction powder 1-5
2 to 5 portions of wear-resistant auxiliary agent
1 to 2 parts of ultraviolet light absorber
9.6 to 24 portions of water-based polyester resin;
the component B comprises the following raw materials in parts by weight:
6.5 to 12.2 portions of curing agent
2.8 to 5.2 portions of a second cosolvent;
the mass ratio of the aqueous hydroxy acrylic resin to the aqueous polyester resin is 3:1, a step of;
the solid content of the aqueous polyester resin is 30% -45%, the hydroxyl content is 0-1.5%, the viscosity is 300-3000 cps, and the average relative molecular mass is 10000-40000;
the curing agent is an aqueous polyisocyanate curing agent, and the aqueous polyisocyanate curing agent is polyisocyanate with polyfunctional degree and long-chain branched structure;
the filler comprises titanium dioxide, feldspar powder and carbon fiber; the weight ratio of the titanium dioxide to the feldspar powder to the carbon fiber is 21 (4-5) to 0-1; the wear-resistant auxiliary agent is PTFE-1004A wax emulsion;
the solid content of the aqueous hydroxy acrylic resin is 42-50%, the hydroxy content is 3.8-4.2%, the viscosity is 300-3000 cps, and the average relative molecular mass is 10000-40000.
2. The wind-powered blade ice-water-resistant polyurethane topcoat as set forth in claim 1, wherein: the solid content of the aqueous polyisocyanate curing agent is 100%, the NCO content is 15-20%, and the average relative molecular weight is 1000-3000.
3. The wind-powered blade ice-water-resistant polyurethane topcoat as set forth in claim 1, wherein: the first cosolvent is one or a combination of dipropylene glycol butyl ether DPNB, diethylene glycol butyl ether DBG or propylene glycol diacetate PGDA; the second cosolvent is one or a combination of dipropylene glycol butyl ether DPNB, diethylene glycol butyl ether DBG or propylene glycol diacetate PGDA.
4. The wind-powered blade ice-water-resistant polyurethane topcoat as set forth in claim 1, wherein: the solvent is distilled water; the thixotropic agent is modified bentonite LT; the water-based dispersing agent is one or a combination of UKa 690W, BYK-191 or SN-5040; the aqueous defoamer is one or a combination of UKa 290W or NXZ.
5. The wind-powered blade ice-water-resistant polyurethane topcoat as set forth in claim 1, wherein: the extinction powder is one or the combination of HP270, extinction powder TSA-560N, M4 or M5; the ultraviolet Light absorber is one or a combination of Tinuvin 400-DW, tinuvin 123-DW, chiguard 5400WB, chiguard101WB and Light 951.
6. A method for preparing the wind-power blade ice-coating-preventing water polyurethane finish paint according to any one of claims 1 to 5, which is characterized by comprising the following steps:
(1) The preparation process of the component A comprises the following steps: adding a formula amount of solvent, a first cosolvent, aqueous hydroxyacrylate resin, aqueous dispersing agent and aqueous defoamer into a reaction vessel, and then dispersing for 1min at 500 r/min; adding thixotropic agent with the formula amount, and dispersing for 10min at 4000 r/min; then adding the filler and the extinction powder in the formula amount, and dispersing for 30-40 min at 3500r/min until the fineness of the coating is less than 40 mu m; then the dispersion rate is reduced to 1000r/min, and the aqueous polyester resin, the wear-resistant auxiliary agent and the ultraviolet light absorber are added for dispersion for 10min to obtain a component A;
(2) The preparation process of the component B comprises the following steps: the curing agent and the second cosolvent with the formula amounts are weighed and added into a reaction vessel, and then dispersed for 3min at 500r/min to obtain the component B.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863892A (en) * | 2012-09-27 | 2013-01-09 | 中远关西涂料化工（天津）有限公司 | Water-base polyurethane coating for fan blades and preparation method thereof |
| CN104762008A (en) * | 2014-01-06 | 2015-07-08 | 中国科学院化学研究所 | Two-component waterborne wear-resisting and low-ice-adhesion anti-icing coating and coating layer, and preparation methods and applications thereof |
| CN109054615A (en) * | 2018-08-16 | 2018-12-21 | 商丘市博大化工有限公司 | Double-component water paint and preparation method thereof |
| CN112430424A (en) * | 2020-11-24 | 2021-03-02 | 厦门双瑞船舶涂料有限公司 | Antiskid wear-resistant polyurethane deck paint and preparation method thereof |
| CN112812670A (en) * | 2020-12-31 | 2021-05-18 | 惠州飞凯新材料有限公司 | Bi-component PU coating and application thereof |
| CN113502116A (en) * | 2021-06-18 | 2021-10-15 | 洛阳双瑞防腐工程技术有限公司 | Roller-coating type weather-resistant wear-resistant wind power blade coating and preparation method thereof |
| CN113956773A (en) * | 2021-11-29 | 2022-01-21 | 厦门双瑞船舶涂料有限公司 | Anti-icing coating for wind power blade and preparation method thereof |
| CN114605903A (en) * | 2022-03-31 | 2022-06-10 | 厦门双瑞船舶涂料有限公司 | Thick-slurry type water-based wind power blade finish paint and preparation method thereof |
-
2022
- 2022-09-27 CN CN202211185976.1A patent/CN115537107B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863892A (en) * | 2012-09-27 | 2013-01-09 | 中远关西涂料化工（天津）有限公司 | Water-base polyurethane coating for fan blades and preparation method thereof |
| CN104762008A (en) * | 2014-01-06 | 2015-07-08 | 中国科学院化学研究所 | Two-component waterborne wear-resisting and low-ice-adhesion anti-icing coating and coating layer, and preparation methods and applications thereof |
| CN109054615A (en) * | 2018-08-16 | 2018-12-21 | 商丘市博大化工有限公司 | Double-component water paint and preparation method thereof |
| CN112430424A (en) * | 2020-11-24 | 2021-03-02 | 厦门双瑞船舶涂料有限公司 | Antiskid wear-resistant polyurethane deck paint and preparation method thereof |
| CN112812670A (en) * | 2020-12-31 | 2021-05-18 | 惠州飞凯新材料有限公司 | Bi-component PU coating and application thereof |
| CN113502116A (en) * | 2021-06-18 | 2021-10-15 | 洛阳双瑞防腐工程技术有限公司 | Roller-coating type weather-resistant wear-resistant wind power blade coating and preparation method thereof |
| CN113956773A (en) * | 2021-11-29 | 2022-01-21 | 厦门双瑞船舶涂料有限公司 | Anti-icing coating for wind power blade and preparation method thereof |
| CN114605903A (en) * | 2022-03-31 | 2022-06-10 | 厦门双瑞船舶涂料有限公司 | Thick-slurry type water-based wind power blade finish paint and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 余喜红等.双组分水性聚氨酯涂膜交联密度的研究.涂料工业.2010,第40卷(第01期),第38-43页. * |
| 商汉章等.高性能风电叶片用防护涂料的研制.中国涂料.2011,第26卷(第08期),第18-21、26页. * |
| 沈剑平等.高性能水性聚氨酯风电叶片涂料.上海涂料.2011,第49卷(第02期),第10-14页. * |
| 王俊等.聚氨酯/碳纳米管复合材料在涂料中的研究进展.涂料技术与文摘.2013,第34卷(第02期),第6-10页. * |
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