54 results about "Metal Primer" patented technology

A multilayer film including a first layer including a polylactic acid polymer, a second layer of a metal primer, deposited upon one surface of the first polylactic acid polymer layer, and a third metal layer deposited on the second metal primer layer. This metal-primed and metallized polylactic acid film exhibits improved moisture barrier properties versus a non-metal-primed and metallized polylactic acid film and can be used as part of a lamination structure for food packaging applications.

The invention discloses ultraviolet curing vacuum coating metal primer capable of achieving electrostatic spraying and a preparation method thereof.The ultraviolet curing vacuum coating metal primer capable of achieving electrostatic spraying is prepared from, by weight, 5-20 parts of urethane acrylate, 10-20 parts of epoxy acrylate, 0-5 parts of pure acrylate, 5-10 parts of polyesteracrylate, 30-40 parts of trimethylolpropane triacrylate, 10-20 parts of low-functionality active diluted monomers, 2-5 parts of photoinitiator, 0.05-0.1 part of a flatting agent, 0.05-0.5 part of adhesion promoter, 0.01-0.5 part of a conductive agent and 3-5 parts of electrostatic thinner.The ultraviolet curing vacuum coating metal primer prepared through the method can be used for electrostatic spraying, has the advantages of being good in coating performance, good in adhesion, high in salt fog resistance, high in production efficiency, high in paint utilization rate and the like, and has wide market prospects.

The invention relates to a room-temperature curing efficient adhesive and a preparation method thereof. The room-temperature curing efficient adhesive is composed of a metal primer and a chloroprene rubber adhesive, wherein a base formula of the metal primer comprises the following raw materials by weight: 1200-1500g of chlorinated rubber CR20, 100-200g of general chloroprene rubber CR2321, 1-3g of an anti-aging agent BHT, 200-300g of light magnesium oxide and 3,000-4,000g of industrial methylbenzene; and the chloroprene rubber adhesive comprises the following raw materials by weight: 50-70g of chloroprene rubber A-90, 30-50g of chloroprene rubber M-40, 1-3g of an anti-aging agent WSL, 0.1-0.6g of a red iron oxide pigment, 10-30g of chlorinated rubber R20, 10-50g of fumed silica, 6-8g of light magnesium oxide, 10-40g of terpene-phenolic resin, and 500-800g of a mixed solvent which is composed of methylbenzene and butanone according to the mass ratio of 3 to 2. The room-temperature curing efficient adhesive provided by the invention is high in adhesive strength, stable in quality and good in heat resistance, has good adaptability on metal materials and non-metal materials, and is suitable for large-scale bonding work.

The invention provides a method for measuring collector area intrinsic square resistance of a bipolar transistor. The bipolar transistor comprises a launch area, a base area and a collector area; wherein the launch area comprises the launch area metal primer, the base area comprises the base area metal primer, and the collector area comprises two collector area metal primers. When measuring, keeping zero voltage bias by the launch area, applying a first voltage Vbe to the base area; respectively applying a second voltage Vce+DeltaV and a third voltage Vce-DeltaV to the two collector metal primers of the the collector area, and measuring the electric current I which passes through the collector area; repeating the step a and the step b at a plurality of bipolar transistors of the collectorarea with the same length LC and the different widths Wc; according to the values of the length LC, the width Wc and the electric current I of the collector area, based on a formula 2DeltaV/DeltaI=Rsh*Lc/DeltaWc+Rx, fitting a curve by taking Lc/DeltaWc as horizontal ordinate and 2DeltaV/DeltaI as longitudinal coordinate, wherein the gradient of the curve is the collector area intrinsic square resistance Rsh, and the intercept distance is the extrinsic resistance Rx of the collector area.

The invention discloses a novel preparation method of imitation electroplating powder paint. The preparation method comprises the steps of allowing a construction party to uniformly spray metal primerpowder onto the surface of a metal workpiece via an electrostatic spraying and high-temperature solidification technology, allowing the powder to be solidified on the surface of the workpiece to forma 80-100um coating with a metal light texture, and after complete solidification and cooling of the coating, uniformly spraying transparent resin powder onto the surface of the workpiece for solidification on the surface of the metal coating to form a 60-80um transparent protective coating. The metal primer powder and transparent finish powder are coated to form a surface coating of the coated workpiece; the surface of the workpiece has a metal luster; a sensitizer and high-gloss wax allows the metal luster of the surface of the workpiece to be more obvious; at the same time, due to double-layer application, the workpiece has high corrosion resistance, adhesion, rigidity and impact resistance; and the transparent finish powder exerts a good protection effect on the metal powder coating and further improves glossiness of the metal coating.

The invention relates to aqueous polyurethane anticorrosive metal primer paint. A basic formula of the aqueous polyurethane anticorrosive metal primer paint comprises the components in part by weight:35.0-55.0 parts of schiff base structure-containing polyurethane aqueous resin, 15.0-25.0 parts of nano aqueous acrylic resin, 10.0-30.0 parts of nanofiller, 1.5-4.0 parts of triethylamine, 4.0-10.0parts of auxiliary agent and 10.0-25.0 parts of deionized water, wherein the schiff base structure-containing polyurethane aqueous resin is prepared by reacting polyisocyanate, polyol, a salicylaldehyde schiff base, oligomer polyol, dimethylolpropionic acid, and a neutralizing agent. The aqueous polyurethane anticorrosive metal primer paint prepared by the invention combines the characteristics ofthe schiff base structure and polyurethane resin, the anticorrosive agent and the bactericide do not need to be added, the anti-corrosive effect is excellent, the primer paint can adapt to various different environments, the nano-aqueous acrylic resin and the nano-filler are added so that the anticorrosive coating have good self-repairing capability.

The invention discloses an anticorrosive metal primer. The anticorrosive metal primer is prepared from, by weight, 10-23 parts of amino resin, 14-42 parts of polyester resin, 10-18 parts of 1,2-propylene glycol-1-monobutyl ether, 11-28 parts of diethyl carbonate, 35-52 parts of 2,2-di(4-hydroxyphenyl)propane, 9-21 parts of cethyl trimethyl ammonium bromide, 13-27 parts of isoprene, 2-13 parts of ammonium stearate, 8-20 parts of triethyl acetocitrate, 5-10 parts of tetraethylenepentamine, 5-15 parts of maleic anhydride, 14-22 parts of diacetone alcohol, and 8-27 parts of ethyl alcohol. The paint prepared from the metal primer is environmentally friendly, free of toxicity, harmless to people, capable of being well combined with the metal primer and a finishing coat, high in water resistance, capable of preventing color change of a metal surface, improving the peel strength of a paintcoat and guaranteeing the anticorrosive effect, and long in anticorrosive time.

Laminates for electronic components are produced by applying a polyimide resin precursor solution containing a palladium compound on a polyimide substrate, drying the resulting coating to form a polyimide resin precursor layer, irradiating this layer with ultraviolet rays in the presence of a hydrogen donor to form nuclei for primer plating, forming a metal primer layer by electroless plating, and converting the polyimide resin precursor layer into a polyimide resin layer through imidation by heating either after or before the formation of a surface plating layer. The invention provides laminates for electronic components which are extremely improved in adhesion to metal layers without impairing the characteristics inherent in the substrate and are excellent in insulating properties, and polyimide resin precursor resin solution to be used in the production of the laminates.

The invention relates to a rust conversion water-based metal primer. The rust conversion water-based metal primer comprises a polyvinylidene chloride-acrylic acid copolymer, tannic acid and a corrosion inhibitor, wherein the corrosion inhibitor is at least one selected from phosphonohydroxyacetic acid and ethylene diamine tetra (methylene phosphonic acid). The rust conversion water-based metal primer product disclosed by the invention does not contain alkylphenol polyoxyethylene ether, is low in VOC (Volatile Organic Compounds) and is environment-friendly. Through the synergistic effect of the polyvinylidene chloride-acrylic acid copolymer, a rust conversion auxiliary agent and the corrosion inhibitor, corrosion of metal is delayed, the heat and humidity resistance is excellent, the contact area between the primer and the metal surface can be effectively increased, and the adhesive capacity of the primer is enhanced. A rust layer on the metal surface treated by the rust conversion water-based metal primer can be directly coated under the condition of rust without being subjected to rust removal treatment.

The invention discloses a metal primer and relates to the technical field of paint. The metal primer includes a first component and a second component, wherein the first component includes following components, by weight, 30-50 parts of synthetic fatty acid modified alkyd resin, 5-10 parts of butanol, 10-20 parts of talcum powder, 0.5-1 part of a modified polyurethane dispersing agent, 30-40 parts of calcium carbonate, 30-40 parts of titanium dioxide and 5-10 parts of dimethylbenzene; and the second component includes following components, by weight, 30-50 parts of isocyanate and 15-35 parts of dimethylbenzene. The metal primer can be dried quickly, is strong in adhesive force, is good in mechanical performances and protective performances, is strong in filling capability, is good in a matching performance, can be matched with various strong solvent finishes and is suitable for being used in coating and priming of various metal products and wood surfaces.

The invention discloses a board, a manufacturing method thereof, a shell and a mobile terminal. According to the embodiment of the invention, the method comprises the steps that a metal base materialis provided, and an epoxy resin layer is arranged on the partial surface of the metal base material; a metal priming paint layer is formed on the side, away from the metal base material, of the epoxyresin layer; and a middle paint layer is formed in the side, away from the epoxy resin layer, of the metal priming paint layer. Accordingly, for the board prepared through the method, the metal priming paint layer and the middle paint layer can improve the metal texture and the hue brightness degree of the epoxy resin layer, the surface evenness and appearance delicacy are improved, the matching consistence of the epoxy resin layer and the metal base material is improved remarkably, and the appearance effect is improved. Meanwhile, the method can effectively avoid the problems of orange peel and oil accumulation balance.

The invention discloses metal primer with a good mechanical property. The metal primer mainly comprises aqueous silicate minerals and is characterized in that 15-20 parts of sodium phosphate, 5-15 parts of modified polyurethane dispersing agents, 15-20 parts of sodium hydroxide and 5-10 parts of nano-silver oxide are added. Compared with the prior art, the metal primer has the advantage of excellent effects achieved by adding the sodium phosphate, the modified polyurethane dispersing agents, the sodium hydroxide and the nano-silver oxide.

The invention discloses water-based metal primer-finish combined paint. The water-based metal primer-finish combined paint comprises, by weight, 5-6% of water, 0.1-0.4% of magnesium aluminum silicate,0.5-0.6% of a dispersant, 0.1-0.2% of a wetting agent, 0.1-0.3% of a defoamer, 0.2-0.5% of a pH regulator AMP-95, 12-18% of R-760 titanium dioxide, 2-5% of zinc phosphate, 3-5% of barium sulfate of 1000 meshes, 1-3% of mica powder of 1000 meshes, 50-55% of an water-based acrylic industrial emulsion, 2-3% of a film former Texanol, 0.5-1% of an anti-flash rust agent, 0.1-0.5% of a preservative, 0.1-0.5% of a polyurethane thickener, 0.1-0.2% of a substrate wetting agent and the balance of water.

The technical scheme of the invention is a metal primer with good filling ability, wherein the main component is a water-containing silicate mineral, and the metal primer is characterized in that 15-20 parts of stearyl betaine, 5-15 parts of a modified polyurethane dispersant, 15-20 parts of zirconium butyl acetate and 5-10 parts of dibutyl maleate are added. Compared to the metal primer in the prior art, the metal primer of the present invention has the following beneficial effect that stearyl betaine, the modified polyurethane dispersant, zirconium butyl acetate and dibutyl maleate added, such that the metal primer has the good effect.