35results about How to "Fast drying and curing" patented technology

The invention discloses a low-temperature quick-drying type polyurethane acrylate coating. The coating consists of a component A and a component B by a mass ratio of 100 to (20-27), wherein the component A comprises the following components in percentage by mass: 20-45 percent of hydroxyl acrylic resin, 4-7 percent of amino resin, 2-12 percent of modified polyaspartic acid ester, 4-10 percent of a pigment, 8-20 percent of filler, 0.1-2 percent of a dispersant, 0.1-2 percent of a defoaming agent, 0.1-2 percent of a flatting agent, 0.1-2 percent of a silane coupling agent, 0.1-2 percent of a PH regulating agent and 15-25 percent of a mixed solvent; the component B is isophorone diisocyanate. The coating disclosed by the invention has the characteristics of being rapid, cured at low temperature, excellent in physical and mechanical properties and the like, is excellent in adhesive force to various base materials (iron, aluminum alloy, zinc plated plates, stainless steel and the like), and can be widely applicable to industrial coating of costly furniture, steel structures, railway locomotives and the like. The invention also discloses a preparation method of the low-temperature quick-drying type polyurethane acrylate coating.

The invention discloses a water-based acrylic amino stoving varnish which comprises the following materials in weight percentage: 50-60% of water-soluble acrylic resin, 10-15% of full methylated amino resin, 0.4-0.6% of an epoxy group silane coupling agent, 15-25% of a pigment, and the balance of water. The water-based acrylic amino stoving varnish uses the water-soluble acrylic resin as a film forming agent and the full methylated amino resin as a coupling agent, as the water-soluble acrylic resin and the full methylated amino resin have a hydrophilic group and can be directly dissolved in water, then no residual emulgators exist after the water-based acrylic amino stoving varnish is dried and solidified, and the water resisting property of the water-based acrylic amino stoving varnish is greatly improved. The water-based acrylic amino stoving varnish adopts the epoxy group silane coupling agent, then the pigment is excellent in compatibility with the film forming agent and the coupling agent, and the service life of the water-based acrylic amino stoving varnish is prolonged. The drying and solidifying speeds of the water-based acrylic amino stoving varnish are high, and the required drying temperature is low.

The invention discloses a 3DP preparation method of an integral sand mold, which comprises the following processes: 3DP molding is carried out by using a 3DP molding material and an inorganic binder, the obtained integral sand mold is subjected to standing curing, and the 3DP molding material is obtained by uniformly mixing sodium silicate powder, disodium hydrogen phosphate powder and 3D printing molding sand; the inorganic binder is obtained by adding sodium silicate powder into a mixed solution of absolute ethyl alcohol and deionized water until the sodium silicate powder is dissolved to be saturated and then filtering; the cured integral sand mold is subjected to vacuum infiltration, so that the integral sand mold fully absorbs the infiltration liquid; the integral sand mold is subjected to reinforced baking and then cooled, and coating spraying treatment is conducted on the surface of the integral sand mold; and the integral sand mold of which the surface is subjected to coating spraying treatment is dried so as to obtain the high-performance integral sand mold. According to the invention, sodium silicate can be used as a binder to carry out 3DP molding of the integral sand mold, and the high-performance integral sand mold with good performance is obtained through an adaptive post-treatment process.

The invention discloses quick-drying silver paste for a large keyboard conductive film circuit. The quick-drying silver paste is prepared from, by mass, 45-65 parts of metal silver powder, 5-10 partsof a macromolecule resin, 0-5 parts of an auxiliary agent and 30-40 parts of a solvent, wherein the metal silver powder is a mixture of flaky silver powder and nano silver powder, the metal silver powder is prepared from the following components in parts by mass: 80 to 90 parts of flaky silver powder and 5 to 10 parts of nano silver powder, the average particle size of the flaky silver powder is 5to 10 microns, the average particle size of the nano silver powder is 20 to 80 nm, and the macromolecular resin is an ethylene resin. The quick-drying silver paste can be quickly cured, is wide in base material application range and good in conductivity, can meet the full-automatic production process of customers, and achieves the purposes of reducing the labor cost and improving the product competitiveness.

The present invention discloses a high solid content polyvinyl acetate emulsion, which is prepared from vinyl acetate, a protection colloid, an emulsifier, an oxidizing agent, a reducing agent, a pH value adjuster, deionized water and a plasticizer. According to the present invention, the high solid content polyvinyl acetate emulsion has the solid content of 66-70%, has the viscosity of less than 3000 mPa.s, has advantages of rapid drying and curing rate and good water resistance, and is widely used in the manufacturing fields of paper processing, coating material decoration, wood processing, nonwoven fabrics, carpets, and the like; and by adding the plasticizer, the viscosity response is slow, such that the product is especially used for high-speed cigarette glues and high-speed laminating. The invention further discloses a preparation method of the emulsion, wherein the method has characteristics of simple operation and easily available raw materials, and is suitable for industrial production.

The invention discloses a water-based environment-friendly paint. The water-based environment-friendly paint is characterized by being prepared from the following raw materials by weight: 40-50 partsof hyperbranched urethane acrylate, 4-8 parts of acrylonitrile-based cross-linked polymer hollow microspheres, 3-5 parts of allyl chloro(difluoro)acetate ionized N, N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid, 1-3 parts of 2, 2-dimethylethenylboronic acid pinacol ester, 1-3 parts of N, N'-(1, 2-dihydroxyethylene)diacrylamide, 0.3-0.6 part of a photoinitiator, 10-15 parts of filler, 1-3 partsof a dispersing agent, 0.5-1.5 parts of a defoaming agent and 25-35 parts of water. The invention also discloses a preparation method of the water-based environment-friendly paint. The water-based environment-friendly paint disclosed by the invention has the characteristics of good comprehensive performance, large adhesive force to a base material, excellent storage and transportation stability, excellent corrosion resistance, flame retardance and high temperature resistance, fast drying and curing speed, convenient construction, large coating hardness, good toughness and weather resistance, and long in service life.

The invention relates to a quick-drying elastic paint and a method for using the same, comprising a main agent A component, a curing agent B component and a dilute solvent C component, wherein the A component includes: Butanone, n-butyl acetate, butanone, mixed dibasic acid ester, elastic resin, polyester resin and wear-resistant wax slurry, etc.; B component is curing agent resin, C component includes ethyl acetate, diacetone alcohol, Isopropyl alcohol, organotin driers and organotin complexing aids. Compared with the prior art, the present invention has the advantages of fast drying and curing speed and long activation period, and can flexibly adjust the elasticity of the elastic paint by adjusting the ratio of the organotin drier in the main agent A component and the diluent C component. Pot life and drying speed.

The invention relates to a water-based composite chromium-free passivation solution for a galvanized steel plate. The passivation solution contains 10-30g / L of sodium molybdate, 0-10g / L of sodium phosphate, 5-10g / L of organic phosphoric acid, 1-10g / L of fluotitanic acid, 5-15g / L of a silane coupling agent, 5-20g / L of sodium metasilicate, 0.1-1% of a wetting dispersant and the balance of deionized water. The passivation solution provided by the invention consists of an organic phosphoric acid-molybdate system in match with the modified hydrolysis type silane coupling agent and a nano-inorganic filler, does not contain a chromate and is in line with ROHS requirements; the passivation and drying curing time is short, the degree of stability is high, the quality of a film layer is good, the white rust area in a 72h salt fog test does not exceed 5%, the cost is relatively low, a passivation process device does not need to be changed, and continuous passivation can be realized by using a hexavalent chromium passivation device in early period.

The invention discloses a water-based PRT colored pavement which mainly comprises a water-based emulsion, a curing agent and composite powder in a ratio of 3: 1: 12. The coating does not contain an organic solvent, has no pungent smell, has no harm to the working environment and the health of constructors, and is more environment-friendly and safer in the transportation process; by adopting the mode that spraying is matched with traditional construction and the corresponding proportion of materials, the opening time on the pavement is long, drying and curing are rapid, the binding force with the pavement is higher, and by spraying colored paint, the water-based perfluoroethylene transparent cover face and the anti-skid layer, the color vividness, the skid resistance, the wear resistance and other performance are further enhanced.

The invention discloses a stacking type drying oven. The drying oven comprises a tray plate feeding preparation zone and stand columns, wherein the tray plate feeding preparation zone is located on one sides of the stand columns, a loading tray is arranged at the top of the tray plate feeding preparation zone, one side of the tray plate feeding preparation zone is in transmission connection with alower layer tray entrance transmission motor, lifting bolt stand columns are arranged on the stand columns, lifting hydraulic cylinders are installed on the lifting bolt stand columns, a first tray transmission guide rail and a second tray transmission guide rail are fixedly installed between the stand columns through bolts, the top of a bolt connecting plate and the top of a fixed bolt stand column are respectively connected with a jacking bolt air cylinder and a fixed bolt air cylinder, a heat circulating air pipe connected through a heat circulating fan is arranged on one sides of the stand columns, and the outer side of a porous air distribution plate is correspondingly provided with a hot air mixing chamber, a storage plate chamber and a secondary hot air distribution chamber. According to the drying oven, the curing and drying efficiency is improved, the processing efficiency of hot air is high, the hot air utilization rate is high, and the energy consumption is reduced.

The present invention discloses a high solid content polyvinyl acetate emulsion, which is prepared from vinyl acetate, a protection colloid, an emulsifier, an oxidizing agent, a reducing agent, a pH value adjuster, deionized water and a plasticizer. According to the present invention, the high solid content polyvinyl acetate emulsion has the solid content of 66-70%, has the viscosity of less than 3000 mPa.s, has advantages of rapid drying and curing rate and good water resistance, and is widely used in the manufacturing fields of paper processing, coating material decoration, wood processing, nonwoven fabrics, carpets, and the like; and by adding the plasticizer, the viscosity response is slow, such that the product is especially used for high-speed cigarette glues and high-speed laminating. The invention further discloses a preparation method of the emulsion, wherein the method has characteristics of simple operation and easily available raw materials, and is suitable for industrial production.

The invention discloses a quick-drying silver paste for a large keyboard conductive film circuit, which comprises the following components by mass: 45-65 parts of metal silver powder, 5-10 parts of polymer resin, 0-5 parts of auxiliary agent, and 30-30 parts of solvent 40 parts; metallic silver powder is the mixture of flaky silver powder and nano-silver powder, each component in the metallic silver powder is made into according to the mass fraction: 80-90 parts of flaky silver powder, 5-10 parts of nano-silver powder, wherein, the average particle size of flaky silver powder The diameter is 5-10μm, the average particle size of nano-silver powder is 20-80nm; the polymer resin is vinyl resin. It can be quickly cured, has a wide range of substrate applications, and has good conductivity. It can meet customers' fully automated production processes, reduce labor costs, and enhance product competitiveness.

The invention discloses a laminated oven, which comprises a pallet feeding preparation area and a column, the tray feeding preparation area is located on one side of the column, a loading tray is arranged on the top of the tray feeding preparation area, and the tray feeding preparation area One side of the preparation area is connected with the bottom tray to enter the transmission motor. The columns are equipped with lifting pin columns, and the lifting pin columns are equipped with lifting hydraulic cylinders. The columns and the columns are fixed by bolts. The first tray transmission guide rail and the second tray transmission guide rail, the pin connection plate and the top of the fixed pin column are respectively connected with a jacking pin cylinder and a fixed pin cylinder. The outer side of the porous air distribution plate is respectively equipped with a hot air mixing box, a plate storage box and a secondary hot air distribution box. The invention improves the curing and drying efficiency, has high processing efficiency, high utilization rate of hot air, and reduces energy consumption.

The invention discloses a wood grain processing technique for the surface of a waterproof floor substrate, which is used for carrying out wood grain printing processing on the surface of a carbonized waterproof wood-plastic floor substrate. The wood grain processing technique comprises the following steps: removing dust from the surface of the molded carbonized waterproof wood-plastic floor substrate; sanding the front of the floor substrate by using a sander; coating a coloring bottom layer; drying and curing the coloring bottom layer by using an ultraviolet light curing machine; grinding the coloring bottom layer; removing dust from the coloring bottom layer; printing simulated wood grains; and adding a wear resistant layer on the surface of the floor substrate. The wood grain processing technique directly prints wood grain patterns on the floor substrate by using a transparent color printer, thus the wood grain patterns having vivid effects are obtained, and the wood grain patternsare firmly attached to the surface of the floor substrate. Moreover, the transparent wear resistant layer is added on the wood grain patterns to protect the vivid wood grain patterns against discoloring when used for a long time and maintain the effect of the wood grains.

The invention discloses a 3DP preparation method of a monolithic sand mold, which includes the following processes: 3DP molding is performed by using a 3DP molding material and an inorganic binder, the obtained monolithic sand mold is statically solidified, and the 3DP molding material is sodium silicate The powder, disodium hydrogen phosphate powder and 3D printing sand are uniformly mixed; the inorganic binder is obtained by adding sodium silicate powder to a mixture of absolute ethanol and deionized water until the sodium silicate powder is dissolved to saturation and then filtered; Vacuum infiltrate the solidified integral sand mold, so that the integral sand mold can fully absorb the impregnation liquid; then the integral sand mold is strengthened and baked, and then cooled and sprayed on the surface of the integral sand mold; the surface is coated The spray-treated monolithic sand mold is dried to obtain a high-performance monolithic sand mold. The invention can use sodium silicate as a binder to carry out 3DP molding of an integral sand mold, and obtain a high-performance integral sand mold with good performance through an adapted post-treatment process.