Methods of preparing surfaces of sample wells are provided. In some aspects, methods of preparing a sample well surface involve contacting the sample well with a block copolymer to form an antifouling overlay over a metal oxide surface of the sample well. In some aspects, methods of passivating and/or selectively functionalizing a sample well surface are provided.

Provided is a super water-repellent layer structure. The super water-repellent layer structure comprises a substrate having a ratchet structure formed on the upper surface thereof and a super water-repellent nanowire structure formed on the ratchet structure, wherein water drops can move in one direction without an external force. A super water-repellent layer structure can be provided which enables water drops to move in one direction using the ratchet structure and the super water-repellent nanowire structure even without force applied from the outside in a state in which the surface thereof is hardly inclined. Thus, such a super water-repellent layer structure can be applied to various industries such as water harvesting, drainage of condensation water of a heat exchanger, etc., a microfluidic industry.

The present invention provides a surface-treating agent comprising a fluorine-containing compound having a carbon-carbon unsaturated bond at its molecular terminal as a group of —Y-A wherein Y is a single bond, an oxygen atom or a divalent organic group, and A is —CH═CH.sub.2 or —C≡CH, which is able to form a layer having higher alkaline resistance.

The present invention provides a super-hydrophobic anti-pollution flashover coating with hydrophobicity transference, which is prepared from the following raw materials: a silicone resin, an organic solvent, silicon oxide, a flame retardant, a cross-linking agent, a coupling agent, a dispersing agent, a defoaming agent, a leveling agent, and a silicone resin curing agent. The present invention also provides a preparation method of the super-hydrophobic anti-pollution flashover coating with hydrophobicity transference. The anti-pollution flashover coating provided by the present invention has both super-hydrophobicity and hydrophobicity transference, which improves the hydrophobicity of a surface of an anti-pollution flashover coating layer, ensures the long-term effectiveness of an anti-pollution flashover coating layer, and prolongs a service life of an anti-pollution flashover coating layer, thereby solving the problem that existing anti-pollution flashover coatings have low hydrophobicity and are prone to contaminant accumulation on the surface and reducing the occurrence probability of pollution flashover accidents.

Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of —NCO in the isocyanate to —OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight.

Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of —NCO in the isocyanate to —OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight. The polyurethane synthetic leather prepared by the present invention has daily life antifouling properties, a good durability, is soft to the touch, is strongly skin-friendly, and has a very superior flame-retardant performance, and also has excellent antifouling, scratch resistance and flexure resistance properties; the production process is simple, efficient and environmentally friendly and same can satisfy market demands.

A baking-type aqueous organic silicon fluorine-containing polymer paint is provided, which includes an aqueous organic silicon fluorine-containing polymer dispersion and a curing agent. The curing agent includes aqueous amino resin, aqueous isocyanate resin, or a combination thereof. In addition, the paint may further include an assist resin such as aqueous polyester resin, aqueous acrylic acid resin, aqueous epoxy resin, aqueous phenoxy resin, or a combination thereof.

A method for the prevention of zooglea growth within an air conditioning system includes applying an antifouling coating to an interior of a condensate pipe of the air conditioning system, where the antifouling coating has a base layer of an algaecide, an intermediate layer of a hydrophobic polymer, and a top layer of a metallic powder. The method of applying the antifouling coating includes pouring the algaecide coating into the condensate pipe, spinning the condensate pipe, and drying the algaecide coating. The method also includes pouring the hydrophobic polymer into the condensate pipe, spinning the condensate pipe to apply the hydrophobic polymer over the algaecide coating, partially drying the hydrophobic polymer, and pouring the metallic powder into the condensate pipe. In addition, the method includes spinning the condensate pipe to apply the metallic powder over the hydrophobic polymer, and drying the hydrophobic polymer until the metallic powder is embedded.

Methods of employing corrosion inhibitors with oxidizing and/or non-oxidizing biocides, such as peroxycarboxylic acids, to provide corrosion protected compositions are disclosed. Various corrosion inhibitors further provide biocidal efficacy in addition to the corrosion protection providing further benefits for application of use. Methods of employing corrosion protected biocide compositions, such as peroxycarboxylic acid compositions, for corrosion protection are particularly well suited for treating fluids intended to flow through pipes, namely in the energy industry, water and paper industries, etc. Methods providing suitable corrosion protection in comparison to untreated systems and corrosion protected systems using conventional corrosion inhibitors, such as quaternary amines and imidazolines commonly used in the industry, are disclosed.

A surface-treating agent including a fluorine-containing compound having a carbon-carbon unsaturated bond at its molecular terminal as a group of —Y-A wherein Y is a single bond, an oxygen atom or a divalent organic group, and A is —CH═CH.sub.2 or —C≡CH, which is able to form a layer having higher alkaline resistance.

The present disclosure relates to compositions and processes in the field of self-cleaning system using digestive proteins. One composition includes a substrate, a digestive protein capable of decomposing a stain molecule, and a linker moiety bound to both said digestive protein and said substrate. The processes include binding a substrate to a surface and forming a linker moiety between a digestive protein and said substrate.