681results about How to "No peeling" patented technology

An alkaline non-cyanide plating solution for copper-plating used on iron and steel base and a preparation method thereof relate to a kind of plating solution. The invention provides the alkaline non-cyanide plating solution for copper-plating used on iron and steel base and the preparation method thereof. The plating solution comprises the following components: main salt, complexing agent, conductive salt, activator, cuprous ion complexing agent, pH stabilizer and brightening agent. The method comprises the following steps: adding complexing agent in water, stirring to dissolve complexing agent, obtaining a solution A; adding main salt in the solution A, stirring to dissolve main salt, obtaining a solution B; adding conductive salt in water, stirring to dissolve conductive salt, obtaininga solution C; mixing the solution B and solution C, adjusting the pH value to 2.0-4.5 with sulfuric acid or sodium hydroxide, obtaining a solution D; adding additive in the solution D, adding water toperform constant volume process and obtaining the alkaline non-cyanide plating solution for copper-plating in the desired volume for use, wherein the additive is activator, cuprous ion complexing agent, pH stabilizer and brightening agent.

A display apparatus is provided in which a transparent cover plate or a touch panel is bonded to a liquid crystal display device in a full-surface contact manner and which is free from unevenness in displayed colors and peeling. The transparent cover plate or touch panel and the liquid crystal display device are bonded with an optical adhesive, which is set to a Shore A hardness of 1 or more to 30 or less. The thickness of the adhesive layer is set to 30 to 200 μm.

A method for manufacturing a polishing pad, which may be laminated, with a small number of manufacturing steps, high productivity and no peeling between a polishing layer and a cushion layer includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition onto a face material, while feeding the face material; laminating another face material on the cell-dispersed urethane composition; curing the cell-dispersed urethane composition, while controlling its thickness to be uniform, so that a polishing layer including a polyurethane foam is formed; cutting the polishing layer parallel to the face into two pieces so that two long polishing layers each including the polishing layer and the face material are simultaneously formed; and cutting the long polishing layers to produce the polishing pad.

The invention provides a preparation method of a magnesium alloy surface micro-arc oxidation/spray coating compound film, which relates to a preparation method of a magnesium alloy surface compound film. The invention solves the problems that film layers obtained by chemical composition coating, anodic oxidation and vapor deposition in the existing magnesium alloy surface treatment method are thin and have poor corrosion resistance performance, the ion injection has high cost and is difficult to realize large-area processing, the combining force between coating layers and the magnesium alloy is poor, and organic coating layers has the defect of easy aging. The preparation method has the following steps: firstly, using micro-arc oxidation for preparing ceramic films on the surface of the magnesium alloy; then, adopting air spray coating for spraying and coating inorganic paint onto the ceramic films; and then, carrying out heat treatment to obtain the micro-arc oxidation/spray coating compound film. The method is simple, and the cost is low. The air spray coating uses porous structures of the micro-arc oxidation ceramic films, so the combination of the inorganic coating layers and the ceramic films is firm, the thickness of the compound films is between 20 and 40 mum, the self corrosion electric potential is positively moved to -1.02 V, the corrosion current density is lowered by 5 orders through being compared with that of the magnesium alloy, the magnesium alloy surface micro-arc oxidation/spray coating compound film has no damage after 72 to 144h of salt spray tests, and the corrosion resistance performance is good.

The invention relates to an insulating mould coating, a laminated glass intermediate film, a piece of heat-protecting glass and a piece of laminated glass thereof. The transparent insulating mould coating is prepared by dissolving a thermal plastic macromolecule resin into a solvent, then adding a nanometer material body sizing agent and other auxiliary agents and stirring the mixture evenly. Theinsulating mould coating can be coated on glass and transparent resin film materials, and has very strong bonding strength, and refraction coefficients similar to that of the glass and the laminated glass intermediate film; and the insulating laminated glass prepared by using the insulating mould coating has the characteristics of high visible light transmittance, infrared ray shielding, heat insulation, ultraviolet ageing resistance and the like. The insulating mould coating is simple to prepare, needs no large-scale equipment, and is favorable for popularization.

The invention discloses a preparation method of a wear-resistant super-hydrophobic nanometer titania coating. The preparation method includes firstly, dissolving silane coupling agent in ethyl alcohol and then heating and stirring to react to obtain a solution; secondly, adding nanometer titania into the solution and then stirring and drying to obtain hydrophobic nanometer titania powder; thirdly, mixing a certain quantity of epoxy resin with hardener while adding in diluting agent to dilute the resin completely to obtain a diluted liquid, adding the hydrophobic nanometer titania powder into the diluted liquid, then subjecting the mixture to ultrasonic dispersion with complete stirring to allow the nanometer titania to contact with the resin completely so as to obtain a suspension liquid; and finally, coating the suspension liquid on a base material and drying completely so as to obtain the wear-resistant super-hydrophobic nanometer titania coating. Compared with the pure hydrophobic nanometer coating, the wear-resistant super-hydrophobic nanometer titania coating prepared by the method has the advantages that coating hardness is improved greatly, and super-hydrophobic property of the coating is guaranteed while interlayer adhesion and inner binding force of the nanometer coating are improved greatly.

The invention relates to a composite sheet material for brazing, the composite sheet material having a structure comprising an aluminium or aluminium alloy substrate on at least one side coupled to a layer comprising a polyolefin/acrylic acid copolymer as a carrier filled with brazing flux material, and optionally also with a metal powder, in an amount sufficient to achieve brazing. The invention further relates to a method of manufacturing composite sheet material for brazing, which method comprises the steps (a) mixing the polyolefin/acrylic acid copolymer with the brazing flux material and/or metal powder, and (b) applying to at least one surface of the metal substrate a mixture of said copolymer filled with the brazing flux material and/or metal powder, in an amount sufficient to achieve subsequent brazing.

The invention relates to an infrared radiation enhanced coating and a preparation method thereof. The downconversion frequency shift infrared radiation enhanced coating is characterized by consisting of the following components in percentage by mass: 20 to 50 percent of radiation synergistic enhancer, 1 to 7 percent of downconversion frequency shift additive, 15 to 45 percent of high-temperature resistant base stock, 32 to 50 percent of high-temperature binder, 1 to 4 percent of flexibilizer and 1 to 4 percent of coating auxiliary agent, and the sum of the mass percentage of the components is 100 percent. The coating not only has high emissivity and good thermal shock resistance, but also can convert visible light into infrared radiation; and the thermal conversion efficiency of the coating is effectively improved.

The invention discloses a graphene oxide/polymer composite antibacterial material and a preparation method thereof. The composite antibacterial material is characterized in that a polymer is subjected to surface modification and then is combined with graphene oxide dispersed in water, thus obtaining a graphene oxide antibacterial coating bonded on a polymer matrix, wherein the thickness of the antibacterial coating is 1 to 50nm. The preparation method of the graphene oxide/polymer composite antibacterial material comprises the following steps: firstly, performing ultrasonic cleaning on the polymer; secondly, performing surface modification on the polymer subjected to ultrasonic cleaning; thirdly, immersing an activated polymer matrix into a coupling agent solution and soaking; fourthly, taking out the soaked polymer, leaching with deionized water, then putting into a graphene oxide suspension liquid for 0.2 to 24 hours, taking out, leaching and naturally drying in air to obtain the graphene oxide/polymer composite antibacterial material. The invention designs and prepares the composite antibacterial material by taking graphene oxide as an antibacterial ingredient; the composite antibacterial material has a transparent antibacterial layer, is excellent in antibacterial property and is firmly bonded with the matrix.

A surface-coated cutting tool which has excellent chipping resistance and wearing resistance in high-speed cutting processing such as high-speed gear cutting processing, high-speed milling processing,and high-speed drilling processing. The surface-coated cutting tool comprises a tool base, e.g., a cemented carbide base, cermet base, or high-speed tool steel base, and at least a hard coating layerformed on a surface of the tool base and having a multilayer structure composed of a thin layer (A) and a thin layer (B) alternating therewith. The thin layer (A) is constituted of an (Al,Cr,Si)N layer satisfying the empirical formula ¢AlXCrYSiZ!N (wherein 0.2 <= X <= 0.45, 0.4 <= Y <= 0.75, 0.01 <=Z <= 0.2, and X+Y+Z=1 in terms of atomic ratio), and the thin layer (B) is constituted of an (Al,Ti,Si)N layer satisfying the empirical formula ¢AlUTiVSiW!N (wherein 0.05 <= U <= 0.75, 0.15 <= V <= 0.94, 0.01 <= W <= 0.1, and U+V+W=1 in terms of atomic ratio).

The present invention relates to the preparation of high activity TiO2 photocatalyst with porous ceramic base, and is especially the nano titania powder and titania sol combining process of preparing regenerable high activity nano titania carried in porous ceramic. The present invention prepares the high activity nano titania carried in porous ceramic through the combination of two carrying processes, titania powder sintering process and sol-gel process. The process includes preparing titania sol via sol-gel process, mixing titania sol and titania powder in certain ratio while stirring and adding dispersant and adhesive to form new solution, carrying the solution to the surface of porous ceramic, fumigating the carrying ceramic in water vapor atmosphere to eliminate most of the organic matters, and final sintering at high temperature for strong combination between nano titania and carrier and raised activity of titania.

The invention discloses a high weather-proof and corrosion-resistant powder paint for a satellite earth antenna. The paint comprises, by weight, 100-150 parts of polyester resin, 20-40 parts of GMA acrylic resin, 0-5 parts of beta-hydroxyalkylamide, 0-10 parts of assistants, 0-100 parts of paddings and 0-3 parts of pigments. The invention further discloses a preparation method for the powder paint. A coating after being coated by the paint and curing is good in mechanical properties, super-weather-proof, salt mist resistant, and provided with stable low gloss area.

To have acceptable moisture permeability and enable prevention of deformation due to swelling, the film base material for an adhesive skin patch includes an ether-based urethane resin obtained from at least one member selected from the group consisting of polyoxytetramethylene glycol, butanediol, polyethylene glycol, and polypropylene glycol as a diol component, and methylene diphenyl-diisocyanate as an isocyanate component. The film base material for an adhesive skin patch has a moisture permeability of preferably 800 to 4,000 g/m²·24 hrs. The adhesive skin patch can be produced by forming a pressure-sensitive adhesive layer on one side of the film base material for an adhesive skin patch.