Blade Coatings for Wind Turbine Performance

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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Superhydrophobic, superoleophobic, and supermetallophobic surfaces with macro-scale features that further reduce the contact time between impinging liquids (like water, oil, and molten metal) and the surface. The macro features induce asymmetry in the liquid film produced by impingement, enabling faster recoil and breakup of the liquid. The features have sizes like ridges and spacing greater than 0.001 mm. This reduces contact times below the theoretical minimum for superhydrophobic surfaces. It's applicable to articles like rainproof clothing, steam turbine blades, and atomizers to improve performance by rapidly repelling impinging liquids before they can foul or freeze on the surface.

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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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