A coating applicator tool head configured for use with a robotic maintenance device includes a tool head body with a frame, a supply container, a drive for actuating delivery of flow of coating from the supply container, a feed tube, a nozzle receiving flow from the feed tube, and a spreading tool such as a roller brush or a spatula receiving flow from the nozzle. The coating applicator tool head is moved by an articulated arm of the maintenance device over surface of a wind turbine blade containing damage such that the roller brush or spatula can apply layers of the coating to cover and fill in the damage. The nozzle directly supplies coating continuously onto the roller brush or the spatula, and the drive can be configured to independently adjust supply of two or more different components in the supply container that may be mixed to form the coating.

An actuator includes a twisted and coiled polymer fishing line and an untwisted resistance heating wire (TCP.sub.FL.sup.RHW) actuator and a coating on the TCP.sub.FL.sup.HRW actuator. The coating includes a mixture of carbon nanotubes, metal nanoparticles, and mesoporous carbon nanoparticles, and in some variations, the coating includes a polymer matrix with the carbon nanotubes, metal nanoparticles, and mesoporous carbon nanoparticles disposed in the polymer matrix. And the actuator exhibits enhanced actuator parameters such as actuator efficiency, hydrophobicity, power consumption, actuation frequency, dynamic actuation and cooling rate.

Disclosed is a wind turbine blade extending from a root end to a tip end, the wind turbine blade comprising a root region, and an airfoil region comprising the tip, a pressure side, a suction side and a chord extending between a leading edge and a trailing edge. The wind turbine blade comprises a leading edge protection element at the leading edge of the wind turbine blade. The leading edge protection element extends in a longitudinal direction between an outboard end and an inboard end and comprises a first section extending from the outboard end to a first section position, wherein the first section is made of a first erosion protection material having a first erosion resistance, and a second section extending from the first section position to a second section position, wherein the second section is made of a second erosion protective material having a second erosion resistance. The first erosion resistance is larger than the second erosion resistance.

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.

An actuator includes a twisted and coiled polymer fishing line and an untwisted resistance heating wire (TCP.sub.FL.sup.RHW) actuator and a coating on the TCP.sub.FL.sup.HRW actuator. The coating includes a mixture of carbon nanotubes, metal nanoparticles, and mesoporous carbon nanoparticles, and in some variations, the coating includes a polymer matrix with the carbon nanotubes, metal nanoparticles, and mesoporous carbon nanoparticles disposed in the polymer matrix. And the actuator exhibits enhanced actuator parameters such as actuator efficiency, hydrophobicity, power consumption, actuation frequency, dynamic actuation and cooling rate.

The invention relates to a wind turbine blade, preferably the leading edge of a wind turbine blade, coated with a coating composition comprising: (A) at least one polyaspartic selected from the group consisting of polyaspartic esters, polyetheraspartic esters and mixtures thereof; and (B) at least one aliphatic polyisocyanate prepolymer curing agent: wherein component B further comprises an aliphatic polyisocyanate which is different to the at least one aliphatic polyisocyanate prepolymer curing agent.

Disclosed is an anti-static and sand erosion-resistant coating material based on in-situ reinforcement modification of cyclodextrin modified carbon nanotubes and its preparation method. It uses specific diisocyanates for surface pretreatment of hydroxylated carbon nanotubes, and then grafts cyclodextrin onto the surface of the pretreated hydroxylated carbon nanotubes to obtain cyclodextrin modified carbon nanotubes. Subsequently, cyclodextrin modified carbon nanotubes are introduced into the synthesis process of polyurethane resin, resulting in a polyurethane resin. It further uses the polyurethane resin as component A and combines it with a curing agent to obtain an anti-static and sand erosion-resistant coating material. The anti-static and sand erosion-resistant polyurethane coating based on in-situ reinforcement modification of cyclodextrin modified carbon nanotubes has high strength, high elasticity, excellent wear resistance, high adhesion, aging resistance, and excellent anti-static function, and can meet the needs of sand erosion-resistant protection for wind turbine blades.

Disclosed is an anti-static and sand erosion-resistant coating material based on in-situ reinforcement modification of cyclodextrin modified carbon nanotubes and its preparation method. It uses specific diisocyanates for surface pretreatment of hydroxylated carbon nanotubes, and then grafts cyclodextrin onto the surface of the pretreated hydroxylated carbon nanotubes to obtain cyclodextrin modified carbon nanotubes. Subsequently, cyclodextrin modified carbon nanotubes are introduced into the synthesis process of polyurethane resin, resulting in a polyurethane resin. It further uses the polyurethane resin as component A and combines it with a curing agent to obtain an anti-static and sand erosion-resistant coating material. The anti-static and sand erosion-resistant polyurethane coating based on in-situ reinforcement modification of cyclodextrin modified carbon nanotubes has high strength, high elasticity, excellent wear resistance, high adhesion, aging resistance, and excellent anti-static function, and can meet the needs of sand erosion-resistant protection for wind turbine blades.

A robotic applicator device (40) for applying a protector (48) to a leading edge (30) of a wind turbine blade (20) includes a main frame (42), a drive (44) coupled to the main frame (42), and a plurality of stations (46) carried by the main frame (42) configured to apply the protector (48) to the leading edge (30) of the wind turbine blade (20). The stations (46) include a dispensing station (50) configured to hold and dispense a material (64) that forms the protector (48), an adhesive station (52) configured to apply adhesive (66) to an adherend surface (68) of the dispensed protector material (64) and/or the leading edge (30), an applicator station (54) configured to place the adherend surface (68) of the protector (48) onto the leading edge (30) of the wind turbine blade (20), and a curing station (56) configured to cure the adhesive (66) so as to bond the protector (48) to the leading edge (30). A method for applying the protector (48) to the leading edge (30) of the wind turbine blade (20) is also disclosed.

A coating system configured to be applied to a thermal barrier coating of an article includes an infiltration coating configured to be applied to the thermal barrier coating. The infiltration coating infiltrates at least some pores of the thermal barrier coating. The infiltration coating decomposes within at least some pores of the thermal barrier coating to coat a portion of the at least some pores of the thermal barrier coating. The infiltration coating reduces a porosity of the thermal barrier coating. The coating system also includes a reactive phase spray formulation coat configured to be applied to the thermal barrier coating. The reactive phase spray formulation coating reacts with dust deposits on the thermal barrier coating