The present disclosure relates to a cold spray metal process for imparting electromagnetic interference (EMI) resistance or lightning protection to the surface of a polymer, and a polymer with surface EMI resistance, or lightning protection, articles coated therefrom, and methods of reducing or eliminating electrochemical interactions between the metallic coating and components of the polymer.

The disclosure concerns a thin light weight essentially water impervious UV resistant non-abrasive traction imparting surfacing material for marine applications adhered to a solid non-elastomeric structural surface and a process for production of it. The surfacing material is a between about 2 and 4 mm thick flexible cured layer of a trowelable adhesive sealant into which were deeply embedded sufficient elastomeric granules with a maximum dimension between about 0.5 and 4 mm to cover the surface of the adhesive sealant layer before it cured. It is prepared by applying an evenly distributed layer of the adhesive sealant onto the structural surface with a trowel or similar means. Then elastomeric granules with a maximum dimension between about 0.5 and 4 mm are distributed on said layer to essentially cover the surface and then deeply embedded into the adhesive sealant layer. A rolling pin may be used to embed the granules.

The disclosure concerns a thin light weight essentially water impervious UV resistant non-abrasive traction imparting surfacing material for marine applications adhered to a solid non-elastomeric structural surface and a process for production of it. The surfacing material is a between about 2 and 4 mm thick flexible cured layer of a trowelable adhesive sealant into which were deeply embedded sufficient elastomeric granules with a maximum dimension between about 0.5 and 4 mm to cover the surface of the adhesive sealant layer before it cured. It is prepared by applying an evenly distributed layer of the adhesive sealant onto the structural surface with a trowel or similar means. Then elastomeric granules with a maximum dimension between about 0.5 and 4 mm are distributed on said layer to essentially cover the surface and then deeply embedded into the adhesive sealant layer. A rolling pin may be used to embed the granules.

A system for forming a particle layer on a substrate may include at least one sprayer and at least two masks configured to selectively mask a substrate in a first region and second region of the substrate. The at least one sprayer may be configured to spray particles at the substrate, where the at least two masks maintain the first region and second region substantially free of the deposited material. A heater may be employed to heat the substrate as the particles are sprayed by the at least one sprayer onto the substrate.

A component for a gas turbine engine includes an airfoil section including a free end and an abrasive coating sprayed onto the free end, the abrasive coating including a polymer matrix and an abrasive filler, the abrasive filler between about 50%-75% by volume of the abrasive coating.

A system for forming a particle layer on a substrate may include at least one sprayer and at least two masks configured to selectively mask a substrate in a first region and second region of the substrate. The at least one sprayer may be configured to spray particles at the substrate, where the at least two masks maintain the first region and second region substantially free of the deposited material. A heater may be employed to heat the substrate as the particles are sprayed by the at least one sprayer onto the substrate.

It is provided a method for producing a support material provided with at least one anti-fingerprint coating including the steps of: applying at least one layer of at least one powdered resin to at least one side of the support material; melting on the at least one applied layer of the one powdered resin; applying at least one acrylate-containing dispersion to the melted-on resin layer; and drying and curing the layered structure.

A print head comprising nested chambers for in-situ reactant formation is disclosed. The print head comprises a first chamber nested within a second chamber. The first chamber comprises a first nozzle, the second chamber comprises a second nozzle. The first nozzle is substantially coaxial with the second nozzle. A susceptor to convert electromagnetic energy to heat is within the first chamber. The susceptor comprises one or more openings extending between the upper portion and the lower portion. The susceptor may be heated by induction heating or by optical heating to vaporize a precursor substance within the first chamber. The vapor may react with a reactive gas flowing through the first chamber or expand through a nozzle into a second chamber where the vapor may react with the reactive gas, forming nanoparticles. Patterned films may be written onto a two-dimensional or three-dimensional surfaces.

A print head comprising nested chambers for in-situ reactant formation is disclosed. The print head comprises a first chamber nested within a second chamber. The first chamber comprises a first nozzle, the second chamber comprises a second nozzle. The first nozzle is substantially coaxial with the second nozzle. A susceptor to convert electromagnetic energy to heat is within the first chamber. The susceptor comprises one or more openings extending between the upper portion and the lower portion. The susceptor may be heated by induction heating or by optical heating to vaporize a precursor substance within the first chamber. The vapor may react with a reactive gas flowing through the first chamber or expand through a nozzle into a second chamber where the vapor may react with the reactive gas, forming nanoparticles. Patterned films may be written onto a two-dimensional or three-dimensional surfaces.

The present disclosure relates to a cold spray metal process for imparting EMI resistance or lightning protection to the surface of a polymer, and a polymer with surface EMI resistance, or lightning protection, articles coated therefrom, and methods of reducing or eliminating electrochemical interactions between the metallic coating and components of the polymer.