The present invention aims to provide a metal coating method whereby a paint can be applied directly, easily, with high adhesion, and with cost increases suppressed, to the surface of titanium and other metals that have a hard passivated coating on the surface thereof. This method uses paint to coat a metal that has the surface thereof coated in a passivated coating and comprises: an etching step in which the passivated coating is removed using an etching solution and the surface is exposed; a diluent coating step in which, after the etching step, a diluent capable of diluting the paint is coated on the surface that is in a liquid-coated state; and a painting step in which the surface is coated in paint after the diluent coating step.

The present invention relates to an eco-friendly and simple super-hydrophobic coating method that does not use harmful substances and special equipment. Coating according to the present invention may be performed as a single process without special equipment, and because only eco-friendly materials are used, the coating material may be easily used and discarded. In addition, even a three-dimensional pipe or a heat-exchanger having a complex shape may be modified to have super-hydrophobicity by applying the present coating, and a super-hydrophobic metal filter may be manufactured and used for oil-water separation. As a result, the present coating method is eco-friendly, simple, and applicable to various substrates, so it has great potential for application in various industries.

A polypeptide monolayer with a low surface potential and hydrophobicity. The polypeptide is composed of polypeptide molecules with a molecular weight of (1.48±0.2)×10.sup.5 g/mol, a thickness of the monolayer is 6.2-9.0 nm, the exposure of primary amino groups on the surface of the monolayer is 9.5-15%, a Zeta potential of the polypeptide monolayer is (−3)−(−9) mV, and a contact angle of the monolayer is (61±1°)-(84±1°). The monolayer can be ultrathin, with a minimum thickness of only about 6.6 nm. The polypeptide monolayer can also be applied to the preparation of a biosensor, which is conductive to increase in limit of detection. The content of primary amino groups on the surface of polypeptide monolayer is conductive to controllability of further chemical modification and laying the foundation for achieving controllable grafting of polysiloxane and biological preparations in the later stage.

The present application discloses a thermal insulation coating and a method for applying the same. Raw materials for preparing the thermal insulation coating includes PVDF resin, water-based epoxy resin solution, hollow glass microbead, ytterbium modified nano-powder, diluent, polyvinyl alcohol, titanium dioxide powder, rare earth, negative ion powder, and leveling agent.

A coating with strong adhesion for medical magnesium alloys, including a magnesium phosphate or calcium phosphate layer as an inner layer and a hydrophobic polymer layer as an outer layer. The inner layer is attached to the medical magnesium alloy; and the outer layer is attached to the inner layer. A preparation method of the coating is also provided, including: (S1) carrying out surface treatment on a medical magnesium alloy substrate; (S2) preparing a solution including magnesium salt/calcium salt and phosphoric acid/phosphate followed by pH adjustment and heating; (S3) soaking the medical magnesium alloy substrate in the solution followed by washing and drying to obtain a magnesium phosphate/calcium phosphate layer-coated medical magnesium alloy sample; and (S4) depositing a hydrophobic polymer layer on the medical magnesium alloy sample through chemical vapor deposition (CVD).

The present disclosure provides a cooking utensil, comprising a blank of the cooking utensil, and a non-stick layer coated on the surface of the blank; the non-stick layer comprises a primer layer in contact with one side of the blank, and a sheet-like graphene, a sheet-like graphene derivative or a combination thereof uniformly distributed in the primer layer. The present disclosure also provides a method for manufacturing of the cooking utensil. The present disclosure fully realizes the heat conduction between the blank and the food through the sheet-like graphene, the sheet-like graphene derivative or the combination thereof, and effectively improves the heating speed and the heating uniformity.

This disclosure relates to improved systems and methods for applying coatings to brake rotors. The systems, methods, and techniques described in this disclosure facilitate application of both pretreatment coatings and protective coatings to brake rotors. Other embodiments are disclosed herein as well.

A method of repairing an erosion coating coupled to a substrate, wherein the coating comprises an anodization layer on the substrate, a bond primer layer on the anodization layer, a corrosion-resistant primer on the bond primer, and an erosion coating on the corrosion-resistant primer. The method comprises abrading an erosion coating; abrading a corrosion-resistant primer; creating an abraded surface comprising a bond primer over an anodization layer coupled to the substrate, applying a sol-gel adhesion promoter layer to said abraded surface; applying a corrosion-resistant layer over the sol-gel adhesion promoter layer; and applying an erosion coating layer over the corrosion-resistant layer.

The disclosure relates to a metal electrode or current collector for an energy storage device. The surface of the electrode or the current collector includes multiple blind hole-like recesses spaced apart from each other. The surface structured in this way is coated with a solid polymer electrolyte. The recesses are filled with the solid polymer electrolyte, as well as a primary or secondary energy storage device including the same.

Coating compositions are provided that eject droplets of condensed fluid from a surface. The coatings include a nanostructured coating layer and in some embodiments, also include a hydrophobic layer deposited thereon. The coating materials eject droplets from the surface in the presence of non-condensing gases such as air and may be deployed under conditions of supersaturation of the condensed fluid to be ejected. A heat exchanger design utilizing the coating is described herein.