An anti-icing coating for wind turbine blades and its preparation method and application

Abstract

The invention relates to the technical field of coatings, and in particular to an anti-icing coating for a wind power blade, a preparation method thereof and an application thereof, comprising a component A and a component B; in the component A, an organosilicon-modified fluorocarbon resin is 42-45wt%, a wetting and dispersing agent is 0.8-1.0wt%, a titanium dioxide is 15-20wt%, super-hydrophobic silica particles are 5-8wt%, a rheological additive is 0.3-0.5wt%, a leveling agent is 0.8-1wt%, a defoamer is 0.1-0.2wt%, an ultraviolet light absorber is 1-1.2wt%, a light stabilizer is 0.8-1wt%, and the balance is an organic solvent I; in the component B, an aliphatic isocyanate curing agent is 65-70wt%, and the balance is an organic solvent II. The anti-icing coating of the invention has waterproof self-cleaning performance and anti-icing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of coatings, and in particular to an anti-icing coating for wind turbine blades, a preparation method thereof, and applications thereof. Background Art

[0002] Prolonged icing significantly impacts wind turbine operators' revenue. Manual de-icing requires high-altitude work, which is labor-intensive and dangerous. Hot air de-icing requires significant heat, which is cost-effective and difficult to implement in existing projects. Passive de-icing, however, involves applying an anti-icing coating to the substrate surface, reducing ice adhesion and thus shortening blade ice retention. Its advantages are low cost and ease of use.

[0003] Currently, the main anti-icing coatings on the market are hydrophobic and anti-fouling coatings. While initially effective, these coatings often rely on additives to achieve both hydrophobicity and anti-fouling properties, resulting in significant degradation of anti-icing performance, typically lasting only a year. Wind turbines are typically located on mountains, coastal mudflats, or in complex natural environments. Furthermore, the equipment itself is often over 100 meters tall, making frequent coating replacements prohibitively expensive. Therefore, a long-lasting anti-icing coating is particularly desirable. Summary of the Invention

[0004] Purpose of the invention: In response to the above technical problems, the present invention proposes an anti-icing coating for wind turbine blades, a preparation method and an application thereof.

[0005] The technical solutions adopted are as follows:

[0006] An anti-icing coating for a wind turbine blade, comprising component A and component B;

[0007] The mass ratio of component A to component B is 9-10:1;

[0008] The component A comprises 42-45 wt% of organosilicon-modified fluorocarbon resin, 0.8-1.0 wt% of wetting and dispersing agent, 15-20 wt% of titanium dioxide, 5-8 wt% of superhydrophobic silica particles, 0.3-0.5 wt% of rheological additive, 0.8-1 wt% of leveling agent, 0.1-0.2 wt% of defoaming agent, 1-1.2 wt% of ultraviolet light absorber, 0.8-1 wt% of light stabilizer, and the balance being organic solvent I.

[0009] In the component B, the aliphatic isocyanate curing agent is 65-70 wt % and the balance is the organic solvent II;

[0010] The preparation method of the organosilicon-modified fluorocarbon resin is as follows:

[0011] Add fluorocarbon resin and vinyltrimethoxysilane to toluene, stir and mix well, then stir at 60-70°C for 30-60 minutes, then add organotin catalyst and deionized water, heat to reflux and stir to react for 4-8 hours, then use a water separator to separate the deionized water, return to room temperature, add polymethylhydrogensiloxane and chloroplatinic acid, continue to heat to reflux and stir to react for 10-15 hours, and finally remove the toluene by distillation under reduced pressure.

[0012] Furthermore, the mass ratio of the fluorocarbon resin, vinyltrimethoxysilane and polymethylhydrogensiloxane is 10:1-5:0.1-1.

[0013] Furthermore, the preparation method of the super-hydrophobic silica particles is as follows:

[0014] Add amide silicon micropowder and acyl chloride nano-silica in a mass ratio of 1-5:1-5 to dichloromethane, use triethylamine as an acid binding agent, reflux for 12-48 hours, centrifuge, collect the product, wash it, and dry it.

[0015] Furthermore, the preparation method of the amino silicon micropowder is as follows:

[0016] Silica powder with a particle size of 1-5 μm is placed in a muffle furnace and kept at 550-600°C for 5-10 hours, then cooled to room temperature, added to a 5-10 mol / L hydrochloric acid solution, heated to 60-80°C for activation for 1-5 hours, cooled to room temperature and centrifuged, the precipitate is collected, washed with deionized water until neutral and then dried to obtain activated silica powder, the activated silica powder is added to anhydrous ethanol, ultrasonically dispersed for 10-30 minutes, and 3-aminopropyltriethoxysilane is added dropwise. After the dropwise addition, the temperature is raised to reflux for reaction for 5-10 hours. After the reaction is completed, centrifugation is performed, the precipitate is collected, washed with anhydrous ethanol and then dried.

[0017] Furthermore, the preparation method of the acyl chloride nano-silica is as follows:

[0018] Anhydrous ethanol, deionized water and ammonia water are mixed to obtain solution A, and ethyl orthosilicate is dissolved in anhydrous ethanol to obtain solution B. Solution B is slowly added dropwise to solution A, and after the dropwise addition is completed, the mixture is stirred and reacted at 40-60°C for 5-10 hours, and then returned to room temperature and allowed to stand. The supernatant is poured out, and the remaining solid is thoroughly washed with anhydrous ethanol to obtain nano-silica with a particle size of 10-100 nm. KH-550 and succinic anhydride are dispersed in DMF, and then a DMF suspension of ultrasonically dispersed nano-silica is added. Deionized water is also added, and the mixture is stirred and reacted at 40-60°C for 5-10 hours, followed by centrifugation. The precipitate is collected and washed thoroughly with anhydrous ethanol to obtain carboxylated nano-silica. The carboxylated nano-silica is dispersed in dichloromethane, and after adding thionyl chloride dropwise, the temperature is raised to reflux for 1-10 hours, centrifuged, and the precipitate is collected and dried.

[0019] Furthermore, the organic solvent I is propylene glycol methyl ether acetate and / or butyl acetate;

[0020] The organic solvent II is propylene glycol methyl ether acetate and / or butyl acetate.

[0021] The present invention also provides a method for preparing an anti-icing coating for wind turbine blades, which is as follows:

[0022] Mixing a silicone-modified fluorocarbon resin, a wetting and dispersing agent, titanium dioxide, a rheological additive, a leveling agent, a defoaming agent, an ultraviolet light absorber, a light stabilizer, and an organic solvent I and grinding them for 30-60 minutes, then adding super-hydrophobic silica particles and continuing to grind for 1-10 minutes to obtain component A;

[0023] Adding an aliphatic isocyanate curing agent to an organic solvent II and mixing them to obtain component B;

[0024] Stir component A and component B thoroughly until mixed.

[0025] The present invention also provides the application of the above-mentioned anti-icing coating for wind turbine blades in the anti-icing field.

[0026] Beneficial effects of the present invention:

[0027] The present invention provides an anti-icing coating for wind turbine blades. The organosilicon-modified fluorocarbon resin used in the present invention has both certain hydrophobicity and excellent weather resistance, and can provide a longer-lasting anti-icing effect. Vinyltrimethoxysilane undergoes a hydrolysis reaction in contact with water under the condition of a catalyst to generate Si-OH. Si-OH undergoes dehydration or dealcoholization condensation reaction with each other or with Si-O-CH3 to form a cross-linked structure. Simultaneously, Si-OH and Si-O-CH3 also react with -OH and -COOH in the fluorocarbon resin to achieve chemical modification of the fluorocarbon resin. The double bond in the vinyltrimethoxysilane undergoes silylation hydrogenation with polymethylhydrogensiloxane under the catalytic action of chloroplatinic acid to achieve the connection between the long chain of polysiloxane and the fluorocarbon resin. The polysiloxane is not only hydrophobic but also has good resistance to environmental factors such as ultraviolet rays, thereby improving the coating's resistance to ultraviolet aging.

[0028] The special micro-nanostructure formed by chemically connecting the amino silicon micropowder and the acyl chloride nano-silica in the present invention can exhibit higher roughness. The super-hydrophobic surface formed can reduce the adhesion between the ice layer and the coating, which is conducive to the shedding of the ice layer, improves the anti-icing properties of the coating, and has better stability. In addition, based on the shielding effect of the super-hydrophobic silica particles against ultraviolet rays, the coating of the present invention has better anti-ultraviolet aging performance.

[0029] The coating formed by the anti-icing coating prepared by the present invention has a super-hydrophobic surface, which not only can provide a waterproof and self-cleaning effect, but also achieves an anti-icing effect by reducing the contact area of ​​the solid-liquid interface, prolonging the freezing time and reducing ice adhesion. It also has good weather resistance, does not require frequent replacement of the coating, and reduces the cost of use. DETAILED DESCRIPTION

[0030] Unless otherwise specified, the following examples and comparative examples were conducted in parallel, using the same processing steps and parameters.

[0031] Example 1:

[0032] An anti-icing coating for wind turbine blades, comprising component A and component B in a mass ratio of 9:1;

[0033] Silicone-modified fluorocarbon resin in component A: 43wt%;

[0034] The wetting and dispersing agent is BYK2025: 1.0wt%;

[0035] Titanium dioxide is DuPont Ti-Pure R-960: 15wt%;

[0036] Superhydrophobic silica particles: 5wt%;

[0037] The rheological additive is Arkema crayvallac super: 0.4wt%;

[0038] Leveling agent is BKY355: 0.8wt%;

[0039] The defoamer is AC-300 from Japan Kyoeisha: 0.15wt%;

[0040] The UV absorber is BASF Tinuvin 1130: 1.2wt%;

[0041] Light stabilizer is BASF Tinuvin 123: 0.8wt%;

[0042] The balance is propylene glycol methyl ether acetate and butyl acetate in a mass ratio of 1:1;

[0043] In component B, the aliphatic isocyanate curing agent Wanhua HT-100 is 68wt% and the balance is propylene glycol methyl ether acetate.

[0044] The preparation method of the organosilicon-modified fluorocarbon resin is as follows:

[0045] Add 100g of fluorocarbon resin and 40g of vinyltrimethoxysilane to 1000ml of toluene, stir and mix, then heat to 60℃ and stir for 30min, then add 0.5g of dibutyltin dilaurate and 10ml of deionized water, heat to reflux and stir for 6h, then use a water separator to separate the deionized water, return to room temperature, add 5g of polymethylhydrogensiloxane and 0.001g of chloroplatinic acid, continue to heat to reflux and stir for 10h, and finally remove the toluene by distillation under reduced pressure.

[0046] The preparation method of super hydrophobic silica particles is as follows:

[0047] The silicon micropowder with a particle size of 1-5 μm was placed in a muffle furnace and kept at 600 ° C for 5 hours, then cooled to room temperature, and then added to 8 mol / L hydrochloric acid solution at a solid-liquid mass ratio of 1:10, heated to 70 ° C for activation for 2 hours, cooled to room temperature and centrifuged, the precipitate was collected and washed with deionized water until neutral and then dried to obtain activated silicon micropowder. 40 g of activated silicon micropowder was added to 500 ml of anhydrous ethanol, ultrasonically dispersed for 30 minutes, and then 1.5 g of 3-aminopropyltriethoxysilane, after the dropwise addition, the temperature was raised to reflux for reaction for 8h, after the reaction was completed, centrifuged, the precipitate was collected, washed thoroughly with anhydrous ethanol and dried to obtain amino silicon powder, 400ml of anhydrous ethanol, 75ml of deionized water and 25ml of ammonia water were mixed to obtain solution A, 25ml of ethyl orthosilicate was dissolved in 50ml of anhydrous ethanol to obtain solution B, solution B was slowly added dropwise to solution A, after the dropwise addition, the reaction was stirred at 60°C for 8h and then returned to room temperature and allowed to stand, the supernatant was poured out, and the remaining solid was washed thoroughly with anhydrous ethanol to obtain nano-silica with a particle size of 10-100nm, 5g of the above nano-silica was added to 50ml of DMF and ultrasonically dispersed for 30min to obtain a suspension, 2.2g of KH-550 and 1g of succinic anhydride were dispersed in 10ml DMF, and then dropwise added to the suspension, and 1 ml of deionized water was added at the same time. The mixture was stirred at 60 ° C for 8 hours and then centrifuged. The precipitate was collected and washed thoroughly with anhydrous ethanol to obtain carboxylated nano-silica. The carboxylated nano-silica was dispersed in 100 ml of dichloromethane, and 10 ml of dichlorothionyl was added dropwise and then heated to reflux for 5 hours. Centrifuged, the precipitate was collected and dried to obtain acyl chloride nano-silica. Amide silicon powder and acyl chloride nano-silica were added in a mass ratio of 1:1 to sufficient dichloromethane, and an appropriate amount of triethylamine was used as an acid binding agent. The reaction was refluxed for 24 hours and then centrifuged. The product was collected, washed with anhydrous ethanol, and dried.

[0048] The preparation method of the above-mentioned anti-icing coating for wind turbine blades is as follows:

[0049] The organosilicon-modified fluorocarbon resin, wetting and dispersing agent, titanium dioxide, rheological additive, leveling agent, defoamer, ultraviolet light absorber, light stabilizer, propylene glycol methyl ether acetate and butyl acetate were mixed and ground for 40 minutes, and then super-hydrophobic silica particles were added and continued to grind for 5 minutes to obtain component A. The aliphatic isocyanate curing agent was added to the propylene glycol methyl ether acetate and mixed to obtain component B. Components A and B were fully stirred to mix.

[0050] Example 2:

[0051] An anti-icing coating for wind turbine blades, comprising component A and component B in a mass ratio of 9:1;

[0052] Silicone-modified fluorocarbon resin in component A: 45wt%;

[0053] The wetting and dispersing agent is BYK2025: 1.0wt%;

[0054] Titanium dioxide is DuPont Ti-Pure R-960: 18wt%;

[0055] Superhydrophobic silica particles: 6wt%;

[0056] The rheological additive is Arkema crayvallac super: 0.5wt%;

[0057] The leveling agent is BKY355: 1wt%;

[0058] The defoamer is AC-300 from Japan Kyoeisha: 0.2wt%;

[0059] The UV absorber is BASF Tinuvin 1130: 1.2wt%;

[0060] Light stabilizer is BASF Tinuvin 123: 1wt%;

[0061] The balance is propylene glycol methyl ether acetate and butyl acetate in a mass ratio of 1:1;

[0062] The aliphatic isocyanate curing agent in component B is Wanhua HT-100: 70wt%, and the balance is propylene glycol methyl ether acetate.

[0063] The preparation method of the organosilicon-modified fluorocarbon resin and super-hydrophobic silica particles is the same as that in Example 1;

[0064] The preparation method of the above-mentioned anti-icing coating for wind turbine blades is as follows:

[0065] The organosilicon-modified fluorocarbon resin, wetting and dispersing agent, titanium dioxide, rheological additive, leveling agent, defoamer, ultraviolet light absorber, light stabilizer, propylene glycol methyl ether acetate and butyl acetate were mixed and ground for 40 minutes, and then super-hydrophobic silica particles were added and continued to grind for 5 minutes to obtain component A. The aliphatic isocyanate curing agent was added to the propylene glycol methyl ether acetate and mixed to obtain component B. Components A and B were fully stirred to mix.

[0066] Example 3:

[0067] An anti-icing coating for wind turbine blades, comprising component A and component B in a mass ratio of 9:1;

[0068] Silicone-modified fluorocarbon resin in component A: 42wt%;

[0069] The wetting and dispersing agent is BYK2025: 0.8wt%;

[0070] Titanium dioxide is DuPont Ti-Pure R-960: 18wt%;

[0071] Superhydrophobic silica particles: 8wt%;

[0072] The rheological additive is Arkema crayvallac super: 0.3wt%;

[0073] Leveling agent is BKY355: 0.8wt%;

[0074] The defoamer is AC-300 from Japan Kyoeisha: 0.1wt%;

[0075] The UV absorber is BASF Tinuvin 1130: 1wt%;

[0076] Light stabilizer is BASF Tinuvin 123: 0.8wt%;

[0077] The balance is propylene glycol methyl ether acetate and butyl acetate in a mass ratio of 1:1;

[0078] The aliphatic isocyanate curing agent in component B is Wanhua HT-100: 65wt%, and the balance is propylene glycol methyl ether acetate.

[0079] The preparation method of the organosilicon-modified fluorocarbon resin and super-hydrophobic silica particles is the same as that in Example 1;

[0080] The preparation method of the above-mentioned anti-icing coating for wind turbine blades is as follows:

[0081] The organosilicon-modified fluorocarbon resin, wetting and dispersing agent, titanium dioxide, rheological additive, leveling agent, defoamer, ultraviolet light absorber, light stabilizer, propylene glycol methyl ether acetate and butyl acetate were mixed and ground for 40 minutes, and then super-hydrophobic silica particles were added and continued to grind for 5 minutes to obtain component A. The aliphatic isocyanate curing agent was added to the propylene glycol methyl ether acetate and mixed to obtain component B. Components A and B were fully stirred to mix.

[0082] Comparative Example 1:

[0083] The method is basically the same as Example 1, except that commercially available nano-silica (Tianxing New Materials TSP-L12) is used instead of super-hydrophobic silica particles.

[0084] Comparative Example 2:

[0085] Basically the same as Example 1, except that the fluorocarbon resin is not modified with polymethylhydrogensiloxane;

[0086] The preparation method of fluorocarbon resin is as follows:

[0087] Add 100 g of fluorocarbon resin and 40 g of vinyltrimethoxysilane to 1000 ml of toluene, stir and mix, then heat to 60°C and stir for 30 min. Then add 0.5 g of dibutyltin dilaurate and 10 ml of deionized water, heat to reflux and stir for 6 h, then remove the small molecule solvent by distillation under reduced pressure.

[0088] Comparative Example 3:

[0089] The process is basically the same as Example 1, except that the fluorocarbon resin is directly added, that is, the fluorocarbon resin is not modified.

[0090] Performance Testing: Glass slides were washed repeatedly with deionized water and anhydrous ethanol several times and dried in a drying oven. The anti-icing coatings prepared in Examples 1-3 and Comparative Examples 1-3, as well as commercially available anti-icing coatings (from COSCO Kansai and Dalian Yibang), were sprayed onto the glass slides at a distance of approximately 15-20 cm from the substrate. The slides were then placed in a drying oven at 60°C for 24 hours to obtain the coatings.

[0091] The static contact angle of the droplet on the coating surface was measured using the sessile drop method using an SDC-100 optical contact angle meter, and the rolling angle of the droplet just as it rolled down on the coating surface was measured using a GFSG60-35 manual angle stage.

[0092] The UV-1140 ultraviolet accelerated weathering test chamber is used to simulate the aging effect of ultraviolet rays in sunlight on the coating. The test chamber uses a UVA-340 fluorescent ultraviolet lamp as the ultraviolet light source, with an irradiation intensity of 0.68W / m 2(340nm), equivalent to the average sunlight intensity at noon in summer at the equator. According to the UV aging test standard, when the test chamber is operating at a temperature of 61-70°C, 12 hours of indoor UV radiation is equivalent to 30 days of outdoor UV radiation. Therefore, the test temperature was controlled at (65.5±1)°C, the aging time was set to 288 hours, and static contact angle and rolling angle measurements were performed. The test results are shown in Table 1 below:

[0093]

[0094] As can be seen from Table 1 above, the coating formed by the anti-icing coating prepared by the present invention has a super-hydrophobic surface, which not only provides a waterproof and self-cleaning effect but also achieves an anti-icing effect by reducing the contact area of ​​the solid-liquid interface, prolonging the freezing time and reducing ice adhesion;

[0095] From the comparison between Example 1 and Comparative Example 1, it can be seen that the super-hydrophobic silica particles prepared by the present invention play a positive role in increasing the static contact angle of the coating and reducing the sliding angle, and also make a certain contribution to improving the anti-ultraviolet aging performance;

[0096] From the comparison between Example 1 and Comparative Examples 2 and 3, it can be seen that the organosilicon-modified fluorocarbon resin prepared by the present invention plays a positive role in increasing the static contact angle of the coating and reducing the rolling angle, and also makes a certain contribution to improving the anti-ultraviolet aging performance;

[0097] Moreover, by comparing with commercially available anti-icing coatings, it can be seen that the anti-icing coating of the present invention has better anti-icing performance and anti-ultraviolet aging performance.

[0098] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-icing coating for wind turbine blades, characterized in that: Comprising component A and component B; The mass ratio of component A to component B is 9-10:1; In the component A, the organosilicon-modified fluorocarbon resin is 42-45wt%, the wetting and dispersing agent is 0.8-1.0wt%, the titanium dioxide is 15-20wt%, the superhydrophobic silica particles are 5-8wt%, the rheological additive is 0.3-0.5wt%, the leveling agent is 0.8-1wt%, the defoamer is 0.1-0.2wt%, the ultraviolet light absorber is 1-1.2wt%, the light stabilizer is 0.8-1wt%, and the balance is organic solvent I; In the component B, the aliphatic isocyanate curing agent is 65-70wt%, and the balance is the organic solvent II; The preparation method of the organosilicon-modified fluorocarbon resin is as follows: Add hydroxyl-containing fluorocarbon resin and vinyltrimethoxysilane to toluene, stir and mix well, then stir at 60-70°C for 30-60 min, then add organotin catalyst and deionized water, heat to reflux and stir to react for 4-8 hours, then use a water separator to separate the deionized water, restore to room temperature, add polymethylhydrogensiloxane and chloroplatinic acid, continue to heat to reflux and stir to react for 10-15 hours, and finally remove the toluene by distillation under reduced pressure.

2. The anti-icing coating for wind turbine blades according to claim 1, characterized in that: The mass ratio of the hydroxyl-containing fluorocarbon resin, vinyl trimethoxy silane and polymethyl hydrogen siloxane is 10:1-5:0.1-1.

3. The anti-icing coating for wind turbine blades according to claim 1, characterized in that: The preparation method of the super hydrophobic silica particles is as follows: Add amide silicon powder and acyl chloride nano-silicon dioxide in a mass ratio of 1-5:1-5 into dichloromethane, use triethylamine as an acid-binding agent, reflux for 12-48 hours, centrifuge, collect the product, wash it, and dry it.

4. The anti-icing coating for wind turbine blades according to claim 3, characterized in that: The preparation method of the amino silicon micropowder is as follows: Place silicon micropowder with a particle size of 1-5 μm in a muffle furnace and keep it at 550-600°C for 5-10 hours, then cool it to room temperature, add it to a 5-10 mol / L hydrochloric acid solution, heat it to 60-80°C for activation for 1-5 hours, cool it to room temperature and centrifuge it, collect the precipitate, wash it with deionized water until it is neutral and then dry it to obtain activated silicon micropowder, add the activated silicon micropowder into anhydrous ethanol, ultrasonically disperse it for 10-30 minutes, add 3-aminopropyltriethoxysilane dropwise, heat it to reflux for reaction for 5-10 hours after the dropwise addition, centrifuge it after the reaction is completed, collect the precipitate, wash it with anhydrous ethanol and then dry it.

5. The anti-icing coating for wind turbine blades according to claim 3, characterized in that: The preparation method of the acyl chloride nano silicon dioxide is as follows: Anhydrous ethanol, deionized water and ammonia water are mixed to obtain solution A, tetraethyl orthosilicate is dissolved in anhydrous ethanol to obtain solution B, solution B is slowly added dropwise to solution A, after the addition is completed, the mixture is stirred at 40-60°C for 5-10 hours, and then the mixture is restored to room temperature and allowed to stand, the supernatant is poured out, and the remaining solid is fully washed with anhydrous ethanol to obtain nano-silicon dioxide with a particle size of 10-100 nm, KH-550 and succinic anhydride are dispersed in DMF, and then a DMF suspension of nano-silicon dioxide dispersed by ultrasound is added, and deionized water is added at the same time, and the mixture is stirred at 40-60°C for 5-10 hours, and then centrifuged, the precipitate is collected and fully washed with anhydrous ethanol to obtain carboxylated nano-silicon dioxide, the carboxylated nano-silicon dioxide is dispersed in dichloromethane, thionyl chloride is added dropwise, and the mixture is heated to reflux for 1-10 hours, centrifuged, and the precipitate is collected and dried.

6. The anti-icing coating for wind turbine blades according to claim 1, characterized in that: The organic solvent I is propylene glycol methyl ether acetate and / or butyl acetate; The organic solvent II is propylene glycol methyl ether acetate and / or butyl acetate.

7. A method for preparing an anti-icing coating for a wind turbine blade according to any one of claims 1 to 6, characterized in that: The details are as follows: The organosilicon-modified fluorocarbon resin, wetting and dispersing agent, titanium dioxide, rheological additive, leveling agent, defoamer, ultraviolet light absorber, light stabilizer and organic solvent I are mixed and ground for 30-60 minutes, and then super-hydrophobic silica particles are added and ground for 1-10 minutes to obtain component A; Adding an aliphatic isocyanate curing agent into an organic solvent II and mixing well to obtain component B; Stir component A and component B thoroughly until they are mixed.

8. Use of the anti-icing coating for wind turbine blades according to any one of claims 1 to 6 in the anti-icing field.

Images