197results about How to "Good pollution resistance" patented technology

A coated steel sheet which is excellent in bending properties, press working properties, tight adhesion of coating film after working, solvent resistance, chemical resistance, stain resistance, weather resistance, electrical conductivity and corrosion resistance and which has excellent surface appearance and satisfactory hardness of coating film, more specifically, a steel sheet which is characterized in that the both sides of the sheet are each covered with a zinc plating layer and a chromium-free chemical conversion coating formed successively and the chemical conversion coating on either of the sides of the sheet is further covered with a single coating film comprising both a polyester resin cured with a crosslinking agent and resin particles having a mean particle diameter of 3 to 40[mu]m, a glass transition temperature of 70 to 200 DEG C and a hardness higher than that of the polyester resin.

The invention provides a water-based paper polishing oil and a preparation method thereof. The water-based paper polishing oil is characterized by comprising the following components in parts by weight: 45-75 parts of styrene-acrylic-organic silicon copolymer emulsion with a core-shell structure, 2-10 parts of water-soluble acrylic resin, 0.5-2 parts of dispersing agent, 0.5-3 parts of wax emulsion, 0.5-2 parts of flatting agent, 0.2-2 parts of defoaming agent, 0-0.5 part of smoothing agent, 0.2-2 parts of neutralizing agent and 5-20 parts of water. The preparation method comprises the following steps: preparing the styrene-acrylic-organic silicon copolymer emulsion with the core-shell structure, preparing a water-soluble acrylic resin solution, and mixing the emulsion and the solution with other raw materials. The water-based paper polishing oil of the invention has the advantages of high polishing performance, high anti-blocking performance and good abrasion resistance.

In an external plate part and / or an internal plate part of the body of an automobile of which the main material is constituted of an aluminum material, an aluminum-coated steel material or a heterogeneous metal material being a combination of the aluminum material with a steel material, the relative roughness of the aluminum material is 0.2 [mu]m or below in Ra, while the aluminum material is a base material of a JIS A6000 series aluminum alloy and is subjected to oxide film coating treatment, and the film decorative film material is stuck to the surface of the aluminum material or the aluminum-coated steel material, according to this method of sticking the decorative film material to the body of the automobile, which is excellent in finish properties and a performance.

The invention discloses a preparation method of a non-layered cross-linked graphene oxide film. The preparation method comprises the following steps: firstly mixing poly-ammonia or an amino-terminated polymer with a graphene oxide water dispersion solution; uniformly dispersing to form graphene oxide sol; dropwise adding the graphene oxide sol into a substrate; and hermetically arranging at the temperature of 70 to 90 DEG C to obtain the non-layered cross-linked graphene oxide film. In the non-layered cross-linked graphene oxide film prepared by the method disclosed by the invention, a graphene oxide nanometer plate layer is formed by crosslinking the poly-ammonia and the amino-terminated polymer and is in irregular disordered orientation; the non-layered cross-linked graphene oxide film has super-hydrophilic properties and super-oleophobic properties underwater, high throughput and good pollution resistance and is suitable for separation of oil and water emulsion at normal pressure.

A sealing material for use in liquid-crystal dropping processes which has an excellent pot-life, has the excellent property of not contaminating liquid crystals, and enables the production of a liquid-crystal display of high picture quality; a vertical-conduction material; and a liquid-crystal display element. The sealing material for use in liquid-crystal dropping processes comprises a (meth)acrylic resin and / or a resin having a cyclic ether group and a heat-curing agent having a structure represented by the following general formula (1). [Chemical formula 1] (1) In the general formula (1), X is a structure represented by (CHR)n, wherein R represents OH and / or H and n is 0 to 3.

The invention discloses a preparation method of a sulfonic acid type amphoteric polyelectrolyte nanoparticle hybrid polyamide nanofiltration membrane. The preparation method comprises the steps: firstly, preparing a sulfonic acid type amphoteric cationic polymer by an aqueous phase free radical polymerization method, then preparing sulfonic acid type amphoteric polyelectrolyte nanoparticles by an ionic crosslinking method, adding the sulfonic acid type amphoteric polyelectrolyte nanoparticles into an aqueous phase monomer solution for preparing a polyamide membrane, and thus obtaining the sulfonic acid type amphoteric polyelectrolyte nanoparticle hybrid polyamide nanofiltration membrane by an interfacial polymerization method. With utilization of good hydrophilicity, contamination resistance and a unique nano pore structure of the nanoparticles, the water permeation flux and contamination resistance of the membrane are greatly improved while the high selectivity of the polyamide membrane on an inorganic salt is kept. Under an operating pressure of 0.6 MPa at the temperature of 25 DEG C, the interception rate of the nanofiltration membrane on divalent ions can reach up to 97%, the interception rate of the nanofiltration membrane on monovalent ions is less than 25%, and the water flux is generally higher than 50 L.m<-2>.h<-1>. Therefore, the prepared sulfonic acid type amphoteric polyelectrolyte nanoparticle hybrid polyamide nanofiltration membrane has high separation selectivity, water permeability and contamination resistance.

The invention belongs to the technical field of ceramic, and relates to an easily cleaned ceramic tile. The provided ceramic tile comprises a blank layer, a cover glaze layer, a printed layer, and an easily cleaned protective dry particle layer. The easily cleaned protective dry particle layer is formed by paving easily cleaned protective glaze, which comprises the following components in parts by weight: 90 to 110 parts of easily cleaned protective particles, 230 to 270 parts of stamp-pad ink, and 20 to 40 parts of transparent glaze. The provided ceramic tile has the advantages that the ceramic tile can be cleaned easily, has a good performance on resisting contamination, can be easily maintained and managed every day, and solves the problems that dirt is easily hidden in conventional tiles and the conventional tiles are difficult to clean.