Disclosed herein is a blade for a turbine comprising a blade cover; a blade body; and a layer of adhesive disposed between the blade cover and the blade body; where the layer of adhesive comprises a first adhesive region and a second adhesive region; where the first adhesive region comprises an adhesive that is chemically different from an adhesive used in the second adhesive region.

A mould tool is disclosed, for use in repairing the eroded leading edge of a wind turbine blade. The mould tool comprises a flexible sheet and a framework which is flexible in one direction, for conforming to the curved edge of the blade, but rigid in the other direction. The mould tool may include tapered side walls. Preferably, a method or repair involves use of a mould tool with tapered side walls, and use of a similar mould tool which lacks the tapered side walls. To repair a section of the edge of a turbine blade, first stripes of resin are injected, spaced apart along the length of the section, using the mould with side walls. The gaps between the stripes are then filled using the mould without side walls.

The present invention relates to coating compositions for wind turbine blades. The compositions are particularly useful as topcoats for wind blades and for Leading Edge Protection (LEP). The invention also relates to a wind blade coated with a coating composition of the invention and to a method for application of the coating composition and to a method for repairing and/or replacing the existing coating layer on a wind blade by application of a coating composition of the invention. The invention also relates to a kit of parts comprising the base composition and the curing agent used in the coating composition. The coating composition used for coating a wind blade comprises a base composition comprising a polyetheraspartic ester having the formula (I) below, wherein each R represents a linear or branched C.sub.1-C.sub.10 alkyl residue, such as a linear or branched C.sub.1-C.sub.6 alkyl residue, such as for example a methyl, ethyl, propyl or butyl residue; and wherein X is a polyether. The coating composition further comprises a curing agent.

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Provided is a marine current energy generating device for a deep sea cage. The marine current energy generating device includes a vortex vibration generating portion, where the vortex vibration generating portion is used for generating vortex vibration on a side facing away from a marine current; power generating portions, where several nano friction generators are arranged in the power generating portions, and the several nano friction generators generate power by using the vortex vibration generated by the vortex vibration generating portion and are electrically connected to each other; a guide portion, where the guide portion is used for making the vortex vibration generating portion perpendicular to a direction of the marine current all the time; and corrosion protection assemblies, where the corrosion protection assemblies are arranged at joints of the vortex vibration generating portion to the power generating portions and the guide portion.

A method of protecting slurry handling equipment is presented which involves (a) identifying one or more types of wear events (erosion, abrasion, corrosion) to which a surface of the slurry handling equipment is susceptible during operation; (b) estimating the severity of each type of wear event the surface will experience during operation; and (c) applying one or more of a thermal spray coating comprising a metal carbide or a metal nitride, and an erosion resistant organic coating to the surface. The types and severity of the wear events are predicted using one or more computational fluid dynamics models, and the application of either or both of the thermal spray coating and the erosion resistant organic coating to the surface is predicated on the types of wear events identified and their estimated severity. In addition, slurry handling equipment and components thereof protected using the method are provided.

The invention relates to the use of phase change materials (PCMs) to delay icing or to cause de-icing in different wind-driven power generator elements. The invention also relates to the method for delaying icing or causing de-icing in different wind-driven power generator elements based on the use of phase change materials (PCMs), said method comprising: a) obtaining the PCMs, and b) incorporating the PCMs obtained into different wind-driven power generator elements.

A coating composition comprising: a) a film forming resin comprising secondary amine groups, b) a polyisocyanate curing agent and c) solid particles of an amino resin based polymer.

Disclosed herein is a blade for a turbine comprising a blade cover; a blade body; and a layer of adhesive disposed between the blade cover and the blade body; where the layer of adhesive comprises a first adhesive region and a second adhesive region; where the first adhesive region comprises an adhesive that is chemically different from an adhesive used in the second adhesive region.

Coating system (1) for coating a surface (3) of a substrate (5), the coating system (1) comprising; a coating (7), and an adhesive layer (9), that is disposed between the substrate (5) and the coating (7), wherein the adhesive layer (9) comprises a first adhesive layer portion (13) adjacent the substrate (5) and a second adhesive layer portion (15) adjacent the coating (7) and a carrier (11) placed between said first and second adhesive layer portions (13, 5), wherein the first adhesive layer portion (13) is composed of a first adhesive layer material, wherein the second adhesive layer portion (15) is composed of a second adhesive layer material, wherein the first adhesive layer material and the second adhesive layer material is having an adhesive or bond strength to the surface (3) of the substrate (5) and to the coating (7) respectively that exceeds their respective cohesive or tensile strength, wherein the first and second adhesive layer materials and carrier (11) combination is configured for having an adhesive strength that is less than their respective cohesive or tensile strength, wherein the carrier (11) is configured with grab tensile properties such that the carrier (11) in combination with the second adhesive layer portion (15) and the coating (7) will separate from the first adhesive layer portion (13) under the action of a peeling force.

Ice-resistant paint comprising an ice-resistant base component that in turn comprises a main component entailing a high solid paint with a synthetic polyurethane-based binding component dissolved in a main organic solvent, and a hydrophobe component consisting of hydrophobic ice-resistant functional nanoparticles selected from among nanoparticles functionalized with a polymer and nanoparticles functionalized in sol-gel, where the ice-resistant paint comprises a mixture of the main component with a dispersion of functional nanoparticles dispersed in a dispersing composition constituting the main solvent and a dispersant, and forms a base matrix, where the dispersing composition and functional nanoparticles form a dispersion of nanoparticles in which the functional nanoparticles are in the base matrix, and the dispersion of dispersing nanoparticles mixed with the main component to form an ice-resistant base component of the ice-resistant paint.