Wind Turbine Blade Coatings

Wind turbine blade design to protect it from erosion in a way that covers only the areas most prone to erosion without wasting material. The anti-erosion layer on the blade is offset toward the pressure side from the leading edge. This allows targeted protection of the areas where erosion is more likely, like the pressure side near the leading edge where rain and debris strike at an angle. The center point of the anti-erosion layer is shifted towards the pressure side from the leading edge along the blade profile. This provides appropriate protection for the areas most susceptible to erosion without covering the whole blade.

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Method to protect wind turbine blades from erosion while reducing drag and noise compared to traditional protective films. The method involves forming a groove on the leading edge of the blade where a thin film will be applied. The groove delimits a region of the blade from the rest. The thin film is then applied to the grooved region and pressed into the groove. This prevents the film edge from lifting due to airflow, reducing delamination. The groove also reduces drag and noise compared to a step edge without the film.

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Protecting the leading edge of a wind turbine blade against erosion while minimizing impact on aerodynamic efficiency and optimizing material usage. The solution involves a sectionized leading edge protection element that gradually transitions from a high erosion resistance material near the tip to a lower resistance material closer to the root. This allows targeted erosion protection where needed while reducing weight and drag compared to a uniform high resistance element. The sectioned design can also be customized for specific blade applications based on expected erosion conditions and blade speeds.

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Two-component, solvent-based coating composition for improving erosion resistance of substrates like wind turbine blades. The composition has a low viscosity suitable for spray application. It contains a base component with polyesterdiols, hydroxyl-functional acrylate resins, and organosilane-modified fillers. The curing component is a polyisocyanate. The composition balances elasticity and hardness for erosion resistance. It can be applied by spraying and cures at room temperature without UV or high heat.

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Hydrophobic anti-icing coating for wind turbine blades and other equipment operating in cold, humid environments to prevent ice buildup. The coating has an inner layer with modified wollastonite particles that are wollastonite with porous silica wrapped on the surface. This inner layer prevents water vapor from reaching the wollastonite core. The outer layer is a hydrophobic layer containing fluorosilane material that further repels water. The inner layer isolates the hydrophobic outer layer from acidic environments to maintain hydrophobicity. The coating prevents water condensation and ice accumulation on equipment surfaces in cold, humid conditions.

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A kind of aldehyde (ketimine)-containing polyether aspartate that has improved properties for use in wind turbine blade coatings. The polyether aspartate has a specific structure with three functional groups: a polyether segment, an aspartic acid ester segment, and an aldehyde or ketone imine functional group. This structure provides better resistance to wind erosion compared to conventional polyether aspartates. It can be used in two-component coating systems for wind turbine blades to provide improved erosion resistance compared to conventional coatings.

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Anti-icing coating for fan blades to prevent ice buildup and condensation on wind turbine blades in cold, humid environments. The coating is a composite of an epoxy-containing polysiloxaborane hyperbranched polymer and a fluorosilicone resin. It forms a surface layer that inhibits water condensation and ice recrystallization on the blade surfaces. This prevents weight increase, center of gravity shift, and aerodynamic performance degradation from ice accumulation on the blades. The coating allows fan blades to operate in cold, humid environments without ice buildup issues.

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A water-based nano coating for preventing ice buildup on wind turbine blades in cold and wet environments. The coating is prepared using a specific formula with ingredients like water-based nanoceramic resin, non-stick additives, inorganic colorants, weak acids, and solvents. The coating has long-term anti-icing properties due to its nanostructure, barrier properties, salt resistance, heat and moisture resistance, and contamination resistance. The coating is applied to wind turbine blades to prevent ice accumulation and improve power generation efficiency in harsh winter conditions.

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Transparent anti-icing coating for wind turbine blades that prevents ice buildup without increasing blade weight or requiring heating. The coating has a hydrophilic bottom layer and a hydrophobic top layer with micro-columns. The hydrophilic bottom layer absorbs water, while the superhydrophobic top layer sheds water due to its low surface energy. The micro-columns prevent water from entering the coating. The transparent coating allows light transmission. It prevents ice adhesion by absorbing moisture into the bottom layer while shedding it from the top layer.

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A polyurethane-ceramic composite coating for wind turbine blades that provides better corrosion resistance and impact resistance compared to conventional coatings. The coating consists of three layers: a bottom polyurethane layer, an intermediate polyurethane-ceramic layer, and a top ceramic layer. The intermediate layer acts as an adhesive to bond the bottom and top layers together. The ceramic layer has a dense cross-linked structure formed by a sol-gel reaction. The coating is sprayed onto the blade using a specific solvent and catalyst to enable the ceramic layer to bond with the polyurethane.

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A self-cleaning anti-icing coating for wind turbine blades that prevents ice buildup, improves aerodynamics, and facilitates cleaning. The coating is made from a polyurea resin with a unique composition of prepolymer A and curing agent B components. The coating is applied using a two-component spray system. The coating formulation contains a fluorine-containing polyether polyol in the prepolymer A component. This fluorinated polyol improves ice repellency and self-cleaning properties. The coating also has excellent heat, moisture, acid, and alkali resistance. The fluorinated polyol prepolymer and curing agent components enable the coating to be sprayed directly onto wind turbine blades using a two-component spray system.

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A polyurea-ceramic composite coating for wind turbine blade leading edges that provides improved resistance to rain erosion and weathering compared to conventional coatings. The coating is made by compounding polyaspartate polyurea and ceramics. The polyaspartate polyurea is made from polyetheramine, diisocyanate, and polyaspartate resin. The ceramics are made from silane coupling agent, silicone resin, and functional fillers. The ceramics are compounded separately and then mixed with the polyurea components to create the composite coating. This provides a coating with rain corrosion resistance, wear resistance, and weather resistance for the leading edges of wind turbine blades.

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Self-healing polyurethane-based super-hydrophobic coating for wind turbine blades that prevents ice formation and enables self-repair of scratches. The coating is made by mixing a fluorinated polyurethane oligomer, micro-nanoparticles modified with fluorinated silane coupling agent, and other additives like UV initiator, pore opening agent, stabilizer, leveling agent, and defoaming agent. The micro-nanoparticles provide super-hydrophobicity and scratch resistance, while the fluorinated silane coupling agent enables self-healing by promoting particle interdiffusion and bonding when scratched.

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Super-hydrophobic wind turbine blade coating that prevents ice buildup on blades in cold weather. The coating is made by combining a photothermal conversion nanocomposite, a fluorine-containing silicone polyurethane, and micro-nanoparticles modified with a fluorine-containing silane coupling agent. The coating has enhanced anti-icing and de-icing properties due to its super-hydrophobicity and photothermal conversion capability. The micro-nanoparticles with fluorine-containing silane improve dispersion and stability. The coating has a lotus-leaf-like texture with papillae that repel water. It reduces blade icing, improves aerodynamics, and reduces power losses compared to conventional coatings.

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Anti-bioerosion coating for wind turbine blades to improve resistance to biological corrosion and extend blade life. The coating is prepared by compounding two base materials: polyurethane and linear polydichlorophosphonazine. The polyurethane provides flexibility to disperse raindrop impact stress, while the polyphosphonazine provides bioerosion resistance. Compounding the two base materials improves rain erosion resistance and extends blade life compared to just using polyurethane. The coating is prepared by mixing components like diisocyanates, polyether diols, post chain extenders, catalysts, neutralizers, solvents, and monomer raw materials for the polydichlorophosphonazine.

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A wind turbine blade surface protective coating that provides improved anti-icing, self-cleaning, scratch resistance, and weather resistance compared to existing coatings. The coating is made by combining specific components like isocyanate-terminated fluorinated polyurethane oligomer, hydroxyl-terminated fluorinated polyurethane oligomer, fluorinated silane coupling agent nanoparticles, catalyst, and foaming agent. The coating can be applied to wind turbine blades using conventional methods.

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An anti-icing hydrophobic coating for wind turbine blades that prevents ice buildup to improve performance and reduce maintenance. The coating has a rough structure and low surface energy components from top to bottom. It uses fluorocarbon resin, fluorosilane coupling agent, and organic hydrophobic particles like PTFE to provide a rough structure. The coating ingredients interact to create a hydrophobic effect that sheds water droplets before freezing. The rough structure allows water roll-off and the low surface energy materials reduce adhesion. The coating is applied to wind turbine blades to prevent ice accumulation and improve power generation in cold weather.

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Coating technique for wind turbine blade ice prevention in cold environments. The coating comprises a double layer of hydrophobic coatings on the blade surface. The inner layer is a composite of silicon dioxide and polytetrafluoroethylene. The outer layer is branched polyfluorosilane. This double layer coating reduces moisture adhesion on the blade surface to prevent ice formation in cold weather. The inner layer made of silicon dioxide and polytetrafluoroethylene provides bonding with the blade matrix. The outer layer of branched polyfluorosilane improves hydrophobicity.

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Super-hydrophobic wind turbine blade coating with excellent anti-icing, self-cleaning, anti-scratch, and weather resistance properties. The coating is made by a solvent-free method using components like isocyanate-terminated fluorinated polyurethane oligomer, micro-nanoparticles modified with fluorinated silane coupling agent, and pore opening agent. The coating forms a lotus-leaf-like papillae structure when cured by air moisture and UV light. This provides superior anti-icing, self-cleaning, and durability compared to conventional coatings.

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Composite functionalized anti-icing coating for wind turbine blades that provides long-lasting ice prevention without frequent applications or high energy consumption. The coating is a composite of light-absorbing, heat-generating carbon nanomaterials modified with low surface energy polymer nanoparticles. The carbon regulates ice formation by absorbing light and generating heat, while the polymer provides superhydrophobicity. The coating prevents ice buildup on turbine blades in cold weather.

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Anti-icing coating composition for preventing blade icing on wind turbines. The composition contains polyurethane, nano metal oxides like copper-nickel-manganese oxide and cobalt-nickel-manganese oxide, calcium silicate, aluminum silicate, and epoxy resin. The coating composition is applied to wind turbine blades to prevent ice buildup during low temperature operation. The metal oxides have melting points below freezing and facilitate heat transfer to prevent ice formation. The composition also contains fillers like calcium silicate and aluminum silicate for mechanical stability. The coating is prepared by mixing the components in the specified proportions.

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Preparing superhydrophobic coatings for wind turbine blades that prevent ice formation and improve deicing performance. The coating has three layers: a bottom adhesive layer, an intermediate layer with heat storage function, and a superhydrophobic outer layer. The intermediate layer contains carbonized waste coffee grounds modified with graphene oxide that encapsulate a phase change material. This provides heat storage and conduction for anti-icing/deicing. The superhydrophobic outer layer prevents water intrusion and further improves ice shedding.

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Protective coating for wind turbine blades with improved impact, tensile strength, weather resistance, wear resistance, sand protection and corrosion resistance. The coating is a two-component system with specific ratios of hydroxyl-terminated polybutadiene, perfluoropolyacid alcohol, and a hydroxyl acrylic resin in the first component. The second component has an isocyanate-based curing agent. The coating preparation involves dispersing the first component components, then adding the second component and curing. The coating has better properties compared to conventional coatings due to the optimized blend of components.

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Improving durability and performance of blades on wind power generation systems by enhancing stripping resistance between multi-layered protective coatings. The method involves applying a touch-dry first polyurethane coating, soaking the solvent off with a cloth, and immediately applying a second polyurethane coating within a specific time window. This process improves interlayer adhesion and stripping resistance between the coating layers compared to conventional methods.

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Wind power blade design with targeted anti-icing coating for improved ice shedding. The blade has two areas, one behind the trailing edge and one near the leading edge. The trailing edge area has coating strips spaced apart, while the leading edge area has continuous coating. This allows ice to detach from the strips easier compared to uncoated areas, preventing large-scale icing. An aerothermal deicing unit inside the blade cavity further helps.

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Wind turbine blade with targeted anti-icing for improved deicing performance. The blade has different anti-icing coatings applied to regions with varying icing severity. The leading edge has a continuous coating, while the trailing edge has strips. The strips have looser ice formation compared to uncoated areas. This creates uneven stresses that cause cracks and easier ice shedding. This prevents large ice accumulation on the trailing edge.

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Wind turbine blades with graphene-containing materials to improve durability, weight, and performance. The blades have graphene-based materials in the blade structure, load-carrying spar, surface coatings, and retrofits. This provides benefits like erosion resistance, radar stealth, impact protection, fire retardation, weight savings, electrical conductivity, and sensor integration. The graphene-enhanced wind turbine blade components improve erosion resistance, durability, weight savings, conductivity, and other properties compared to conventional blades.

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Multifunctional anti-icing coating for equipment like wind turbine blades that combines passive and active de-icing capabilities. The coating has a surface layer formed by a compound of a multifunctional component containing 1D and 2D carbon nanomaterials, and a hydrophobic component containing a polymer with hydrophobic groups. This layer provides both passive anti-icing from hydrophobicity and active de-icing via electrical and light heating to prevent ice buildup without damaging the coating.

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Preparing a multifunctional anti-icing coating for wind turbine blades that combines active and passive anti-icing techniques. The coating uses cellulose nanowires as a carrier to grow polypyrrole in situ. This nanowire@polypyrrole suspension can stabilize Pickering emulsions of different oils. The emulsion is mixed with water-based polyurethane to create a coating with a smooth surface and encapsulated oil. The coating provides active anti-icing from polypyrrole's photothermal and electrothermal properties. The oil migrates to the blade surface for passive anti-icing. The coating prevents ice buildup on wind turbine blades.

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Windmill blade with improved erosion resistance without damaging the base material. The blade has a three-layer construction: an intermediate layer made of metal, ceramic, cermet, or their mixtures with higher content compared to other components, and an erosion-resistant thermal spray coating with low porosity (5% or less) on top. The intermediate layer protects the base material from damage during thermal spraying, while the dense top coating provides superior erosion resistance. The blade can be manufactured by forming the intermediate layer on the FRP base and then applying the thermal spray coating.

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A durable coating for wind turbine blade leading edges that provides long-term protection against erosion. The coating contains specific polymer components like diphenol-based epoxy resin, polyisocyanate prepolymer, and silica filler. The coating is applied in 15 cm wide sections along the leading edge, extending 1/3 of the blade tip length. This targeted coating provides higher wear resistance compared to full blade coatings, avoiding damage to the base structure. It improves wind turbine safety, reduces blade degradation, and lowers maintenance costs.

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Anti-icing super-slip polyurea coating for wind power blades that delays ice formation and reduces ice adhesion compared to conventional polyurea coatings. The coating has a modified formulation with ingredients like modified graphene oxide, modified amino-terminated polyether, and modified nano aluminum disulfide. This composition improves the coating's adhesion to wind power blades while also providing anti-icing and super-slip properties. The coating can be applied using a spray process.

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High salt spray resistant water-based coating for wind power blades that provides improved corrosion resistance, tensile strength, and water resistance compared to conventional coatings. The coating comprises specific amounts of aluminosilicates, nano-graphite flakes, passivation metal particles, rare earth micropowder, acrylic emulsion, silicone latex, titanium dioxide, water-based fluorocarbon resin, environmentally friendly solvent, pigment, and additive. The coating formulation and preparation method provide a more environmentally friendly alternative to conventional wind power blade coatings.

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High chemical resistance water-based coating for wind power blades that provides improved corrosion resistance, water resistance, and chemical resistance compared to conventional coatings. The coating contains specific raw materials like cyclopropene resin emulsion, chlorinated paraffin, vinyl polymer, polyester resin, silicon carbide, scaly graphene, barite, yttrium oxide, water-based polyurethane, pigments, and additives. The coating is prepared using techniques like ultrasonic dispersion to improve dispersion and bonding of components.

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Anti-icing coating for wind turbine blades that provides improved anti-icing performance and wear resistance compared to existing coatings. The coating has an inner layer containing composite transition metal oxides, acid salts, butyl hydroxyl compounds, and nanoxides, and an outer fluorine-containing layer. The inner layer prevents ice adhesion and the outer layer reduces friction and wear. The coating is applied in layers and cured at 25-40°C for 72-96 hours.

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Wind turbine blade design with improved erosion resistance. The blade has a leading edge protector with a softer main body layer covered by a harder coating layer. If the protector gets damaged, repair involves inserting a long, compressible material into the damaged area, deforming it to match the shape, and removing excess. This repairs the protector without requiring full replacement.

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An anti-icing wind turbine blade that prevents ice buildup on the blades during low-temperature weather conditions. The blade has a heat shrinkable film made of PVC with a rough surface created by etching and a PTFE coating deposited on it. The roughness and tight cross-linked micro-nano structure of the coated film surface prevents ice adhesion and shedding without external heating or coatings. The etching process on the film substrate improves adhesion between the coating and film. The rough surface and PTFE coating provide superhydrophobicity to prevent ice accretion on the blade.

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A rotor blade coating system for wind turbines that improves durability and performance by preventing ice buildup and lightning strikes. The coating has two layers: an inner adhesive layer with heating elements and an outer metal layer. The heating elements in the inner layer can be powered to melt ice on the outer surface. This prevents ice accretion that reduces efficiency and increases noise. The outer metal layer protects against impacts and lightning strikes. The inner layer with heating elements provides an electrical insulating barrier between the rotor blade and outer layer. This prevents electrical shorts and current paths through the blade. The coating can be applied using a method where the heating elements and inner adhesive layer are applied first, followed by the outer metal layer.

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A protective coating for the leading edge of wind turbine blades that provides improved corrosion resistance and durability compared to existing coatings. The coating is a reinforced and toughened hydrophobic ceramic coating containing triethoxysilane, ethoxyphenyl silicone resin, nano-titanium dioxide, nano-cerium oxide, polytetrafluoroethylene emulsion, acrylic resin, water, and absolute ethanol. The coating is prepared by mixing and stirring the components, then filtering to remove impurities. The coating composition and preparation method provide a protective layer for the blade leading edge that helps prevent corrosion and damage from factors like aerodynamic friction, aging, rain, salt, sand, and biological erosion.

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Method to prevent ice buildup on wind turbine blades using super-hydrophobic coating. The method involves spraying a specific coating on the blades called DSAN (Diamine-siloxane-amine-naphthol) to make the surface less prone to ice adhesion. The coating weakens ice bonding and helps melting in low temperatures. The steps include base surface washing, drying, primer spray, topcoat spray, and blade transfer. The coating weight increase is controlled to avoid excessive blade weight gain.

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A protective coating for wind turbine blades that improves low temperature resistance. The coating contains a film-forming material made of silicon micropowder polyaniline composite modified polyurethane prepolymer. The curing agents are aliphatic acid tincture curing agent and imidazole curing agent. The coating also has solvent, defoaming agent, leveling agent, and sulfonated polyphenylene ether. This formulation provides better adhesion, ice resistance, and impact resistance at low temperatures compared to existing coatings for wind turbine blades.

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Preparation method for an anticorrosive repair coating for offshore wind turbine blades that provides improved resistance to environmental factors like UV radiation, sand erosion, salt spray, alkali, and acid exposure. The coating formulation involves a mixture of dicyclopentadiene, liquid polybutadiene, allyl glycidyl ether, liquid polyamide, xylene, n-butanol, and oxygen resin. The components are blended in specific ratios and processed at controlled temperatures to create the anticorrosive repair coating for offshore wind turbine blades.

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Using functionalized graphene in wind turbine blades, towers, and coatings to improve performance and durability. The graphene can be incorporated into the blade structure, load-carrying spar, surface coatings, and retrofitted onto existing blades. Benefits include reduced weight, increased strength, improved erosion resistance, better impact resistance, enhanced conductivity, radar absorption, and thermal management. Functionalized graphene in blades can also provide de-icing functionality. Graphene-containing coatings on towers can enable higher tower heights. The graphene can also be used in wind turbine sensors.

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Method for preparing a rapid repair coating for wind power blades that provides a coating with high adhesion, weather resistance, and impact resistance. The coating is made by emulsion polymerization of dicyclopentadiene dioxide, vinyl ester resin, butyl acrylate, and methyl methacrylate in water. The resulting interpenetrating latex particles are mixed with additional vinyl ester resin, pigments, and rheological additives to make the wind power blade quick repair coating. The coating is applied to wind turbine blades using high-pressure airless spray and cured with a curing agent and accelerator. The coating has improved adhesion, weather resistance, and impact resistance compared to conventional coatings for wind turbine blades.

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Paint formulation for turbine blades and aircraft wings that provides improved erosion resistance. The paint contains a fluorinated polymer, a polyester, and inorganic particles with a Mohs hardness of 3.0 to 5.0. The inorganic particles are added at 20-60 parts by weight per 100 parts of the fluorinated polymer and polyester. This balanced combination of hard particles, soft polymer, and polyester provides a coating film with good erosion resistance.

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An anti-icing method for wind turbine blades using a polypyrrole nano-coating to prevent ice buildup. The coating is applied to the wind turbine blade surface using a specific process. The coating is made by ball milling polypyrrole powder, mixing it with a binder, and ultrasonically stirring it with solvents to create a black viscous liquid. This liquid is then coated onto the wind turbine blade and dried to create a polypyrrole nano-coating. The coating provides anti-icing properties due to its high hydrophobicity.

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A method for applying a corrosion-resistant coating on turbine blades to improve their durability in wet steam environments. The method involves electrolytic-plasma polishing the blade, followed by vacuum cleaning and etching with inert gas ions. Pairwise nanocomposite microlayers are then formed on the blade surface from titanium with aluminum and titanium nitride with aluminum nitride. The microlayers of titanium nitride with aluminum nitride are thicker (1.35-1.5 microns) compared to the microlayers of titanium with aluminum (1.2-1.4 microns). Six or seven pairs of microlayers are applied in total. This layered coating provides improved corrosion resistance and fatigue characteristics while maintaining high erosion resistance compared to single layer coatings.

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Coating wind turbine blades with a molybdenum sulfide nano anti-icing coating to prevent ice accumulation without using external power sources. The coating is applied by ball milling molybdenum sulfide powder, mixing it with a binder and solvent, and coating it onto the blade surface. The coating is hydrophobic due to the molybdenum sulfide, preventing water adhesion and ice buildup on the blade during cold, wet conditions.

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Anti-icing wind power blade coating composition to improve blade service life and reduce ice accumulation. The coating contains resin, dispersant, pigment, conductive material, defoaming agent, leveling agent, rheology additive, matting agent, adhesion promoter, initiator, solvents, light calcium carbonate, and anti-settling fumed silica. The specific weight ratios are provided. The coating composition aims to balance properties like adhesion, weather resistance, anti-icing, and abrasion resistance for wind turbine blades operating in harsh environments.

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Retrofitting erosion-resistant coatings onto wind turbine blades to protect against particle erosion. The method involves creating a mold of the blade's shape, then casting a fiber-reinforced polymer coating onto the mold. The coating is applied in layers with each layer cured before the next is added. The mold is shaped to match the blade profile. The coating is then removed from the mold and attached to the blade. This allows creating a customized erosion-resistant coating that conforms to the blade shape and prevents erosion in areas like the blade tips.

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