97results about How to "Improved surface leveling" patented technology

The invention discloses a preparation method of an impregnated paper for a decorative surface on high-glossiness furniture, belonging to the field of a decorative paper. The method comprises steps of: preparing modified melamine formaldehyde resin stock solution; impregnating a printing roll paper by a modified melamine formaldehyde resin stock solution groove, adjusting a quantifying roller, and controlling the glue quantity at 60-150g/m<2>; leading the impregnated roll paper into a first suspending type oven to dry at the temperature of 100-150 DEG C, coating modified melamine formaldehyde resin mixed liquor on the surface of the roll paper, and controlling the glue coating quantity at 40-100g/<2> by an anilox roll; and leading the roller-coated roll paper into a second suspending type oven to dry at the temperature of 100-150 DEG C, controlling a roll paper running speed at 10-12m/minutes, and cooling by a cooling roller to obtain the impregnated paper. The preparation method is reasonable in the technology, simple in operation, reliable in the obtained impregnated paper quality and obvious in effect.

The invention discloses a powder coating containing modified attapulgite and a preparation method of the powder coating. The powder coating consists of the following raw materials: modified epoxy resin, epoxidation polybutadiene resin, linear low-density polyethylene resin, modified attapulgite, polyethylene wax powder, film-forming resin, polydimethylsiloxane, high pigment carbon black, methacrylic acid resin, nanosilicon dioxide, triethylene tetramine, antioxygen DLTP (Dilauryl thiodipropionate), diphenylamine and trioctyl trimellitate. The powder coating is a green and environmental-friendly coating, has no toxicity, has high-temperature resistance, contains no solvent and has no VOC (Volatile Organic Compounds) emission; and furthermore, the modified attapulgite is added in the powder coating, so that the compatibility of the modified epoxy resin, the epoxidation polybutadiene resin and the linear low-density polyethylene resin is enhanced, the surface leveling of the powder coating is improved, the powder coating has the advantage of high gloss retention and the decorative property of the powder coating is enhanced; and the qualified rate of the finished product obtained by preparing is high and the industrial mass production can be realized.

The invention discloses a powder coating containing modified tree ash and a preparation method of the powder coating. The powder coating consists of the following raw materials: modified epoxy resin, low-density polyethylene resin, phenolic resin, modified tree ash, organosilicone leveling agent, film-forming resin, polydimethylsiloxane, aliphatic amine, silver powder, acrylic resin, ultra-fine calcium carbonate, hexamethylenetetramine, catechol and simethicone. The powder coating is a green and environmental-friendly coating, has no toxicity, has high-temperature resistance, contains no solvent and has no VOC (Volatile Organic Compounds) emission; and furthermore, the modified tree ash is added in the powder coating, so that the compatibility of the modified epoxy resin, the low-density polyethylene resin and the phenolic resin is enhanced, the surface leveling of the powder coating is improved, the powder coating has the advantage of high gloss retention and the decorative property of the powder coating is enhanced; and the qualified rate of the finished product obtained by preparing is high and the industrial mass production can be realized.

The invention discloses a zinc oxide-containing powder coating and a preparation method thereof. The powder coating comprises the following raw materials by weight part: 40-50 of novolac resin, 45-55 of novolac epoxy resin, 70-75 of rosin resin, 18-22 of nanoscale titanium dioxide, 8-12 of zinc oxide, 25-30 of dolomite powder, 4-6 of dapsone, 8-10 of activated carbon powder, 3.5-5.5 of hexamethylenetetramine and 4.0-5.0 of a film forming agent. The powder coating disclosed in the invention adopts the novolac resin and novolac epoxy resin as main raw materials, and zinc oxide, activated carbon powder and the film forming agent are added to enhance the mixing property among each raw material. Meanwhile, the surface leveling of the powder coating is improved, and the powder coating has high gloss retention and improved decorative property. The prepared product has a high qualified rate.

The invention relates to a siloxane modified acrylate levelling agent comprising 30-40 parts by mass of an acrylate monomer, 10-15 parts by mass of a methyl acrylate monomer, 5-10 parts by mass of a siloxane monomer, 1-2 parts by mass of an initiator and 40-45 parts by mass of a solvent. The problems that a conventional levelling agent is poor in surface properties and poor in ability to resist cavity shrinkage, low in compatibility with resin and low in ability to resist pollution and is not environmentally friendly enough can be effectively solved.

The invention relates to the technical field of insulating paint, in particular to highly heat-resistant polyurethane insulating paint and a preparation method thereof. The highly heat-resistant polyurethane insulating paint is prepared by carrying out a reaction on polyester polyol, closed isocyanate, modified PU resin, a catalyst and a mixed solvent, wherein the mass ratio of polyester polyol, closed isocyanate, modified PU resin, and the mixed solvent is 1: (1-1.8): (0-0.5): (0.4-1.5), and the dosage of the catalyst is 0.1-5% of total mass of reactants. The high heat-resistant degree of thehighly heat-resistant polyurethane insulating paint provided by the invention reaches 108 levels, is excellent in solderability, has relatively high apparatus performance, mechanical strength and excellent heat impact resistance and softening resistance and can be widely applied to high-temperature-resistant and Freon-resistant motors and apparatuses.

The invention specifically relates to epoxy resin for a 50: 50 indoor powdery paint with a high leveling grade and further discloses a preparation method thereof, belonging to the technical field of powdery paints. The epoxy resin for the 50: 50 indoor powdery paint with a high leveling grade is prepared through polymerization of bisphenol A, epichlorohydrin, sodium hydroxide, polyethylene glycoldiglycidyl ether, pentaerythritol dioleate, E-51 epoxy resin, adipic acid, cyclohexane-1,2-dicarboxylic acid diglycidyl ester and N,N-dimethylformamide. The synergistic action among the raw materialsensures that the produced epoxy resin has excellent overall performance such as impact resistance, excellent adhesion, water resistance, etc. The epoxy resin is finally applied to the 50:50 indoor powdery paints and allows a coating with excellent comprehensive performance and a high leveling grade to be obtained.

The invention discloses waterborne environment-friendly direct-plating beer bottle label base and surface paint with ink retaining performance. The paint comprises a base paint component and a surface paint component, wherein the base paint component comprises 40-60 parts of a waterborne acrylic emulsion, 0.1-0.2 parts of a leveling agent, 0.02-0.08 parts of an antifoaming agent, 10-30 parts of a cosolvent and 20-40 parts of a solvent; the surface paint component comprises 8-18 parts of waterborne polyurethane, 10-20 parts of waterborne epoxy resin, 5-10 parts of a waterborne epoxy resin curing agent, 0.05-0.3 parts of an adhesion promoter, 0.05-0.1 parts of a wetting agent, 0.1-0.25 parts of a wax emulsion, 0.05-0.1 parts of an antifoaming agent and 60-70 parts of a solvent. Compared with the prior art, the paint belongs to environment-friendly waterborne paint, is low in odor, low in volatile organic matter content, high in aluminizing brightness, good in surface leveling property and excellent in ink adhesive force, and has the excellent ink retaining effect, the label removing time is less than 300 s, and an aluminized coating is completely cleaned up.

The invention discloses a powder coating with high density polyethylene as a main ingredient and a preparation method thereof. The powder coating comprises the following raw materials by weight part: 48-55 of high density polyethylene, 27-33 of polybenzimidazole, 18-22 of quartz sand, 25-30 of montmorillonite powder, 4.5-5.5 of activated carbon powder, 2.0-3.0 of cobaltic oxide, 5.0-7.0 of hydrotalcite powder, 6.0-8.0 of a dispersing agent NNO and 5.0-6.5 of a film-forming agent. In the invention, high density polyethylene is adopted as the main raw material, and the hydrotalcite powder and the film forming agent are added so as to enhance the mixing performance among each raw material and improve the surface leveling of the powder coating simultaneously. With high gloss retention, the powder coating has improved decorative performance. And the prepared product has a high qualified rate.

The invention discloses a preparation method of barium sulfate for powder coating. The method comprises the following steps of enabling barite and a mirabilite solution from which calcium, magnesium and other impurities are removed to react to prepare barium sulfate, wherein the barite is calcined and reduced into barium sulfide; modifying the surface of a newly-generated barium sulfate crystal nucleus via surface modifying and a dispersant M, and further modifying the surfaces of barium sulfate particles by a surface modifier N, so that the particles can be effectively combined with organic macromolecules in the powder coating, and well dispersed in the coating. The prepared barium sulfate has the advantages of low oil absorbing amount, good lipophilicity, uniform particle dispersing and the like. The powder coating for production has the advantages of high whiteness, good fluidity, uniform dispersing and the like.

The invention relates to polyester resin for powdery coating with self catalytic activity, a preparation method thereof and the powdery coating containing the polyester resin. The polyester resin is prepared from the main raw materials including dimethyl terephthalate, trimellitic acid ester with quarternary ammonium salt group, dicarboxylic acid, dihydric alcohol, N,N-dihydroxypropyl diethyl ammonia chloride, and an acidifying agent via copolymerizing reaction. The polyester resin has the advantages that the quarternary ammonium salt active catalyzing group is carried in the finally obtained polyester resin chain segment, so that under the condition of no additional adding of curing accelerant, the curing activity is better, the influence to the curing activity after storage for a long time is avoided, the acid value is 65 to 75mgKOH/g, and the curing film layer is excellent.

The invention discloses nano titanium dioxide suspension. By optimization of selection and proportion of raw material components, a visible light absorption wavelength range is effectively expanded, efficient negative ion dissociation capability is achieved after surface coating formation, and accordingly better air purification and bactericidal efficacies can be achieved. By introduction of nano graphene oxide excellent in thermal conductivity and electricity conductivity into the raw material components, the suspension has excellent anti-adhesion and antistatic performances after solidification. The nano titanium dioxide suspension is high in stability, and a preparation method is simple, high in operability and beneficial to industrial large-scale production. The invention further discloses anti-adhesion self-cleaning artificial board decorative paper. The surface of the anti-adhesion self-cleaning artificial board decorative paper is coated with a nano titanium dioxide photocatalyst coating, an efficient negative ion release performance is achieved, and a preparation method of the decorative paper has advantages of simplicity, high efficiency, environmental friendliness and the like. Laminated artificial decorative boards meet requirements of JC/T2110-2012 Indoor Air Ion Concentration Test Method.

The invention belongs to the technical field of polymer polymerization and discloses a surfactant capable of realizing radiation curing of waterborne fluorinated polyurethane acrylate as well as a preparation method and application of the surfactant. The surfactant comprises the following raw materials in parts by weight: 10-45 parts of monomethoxy polyethylene glycol and/or polyethylene glycol-polypropylene glycol mono-butyl ether, 3-20 parts of perfluoroalkyl alcohol, 45-75 parts of polyisocyanate-trimethylolpropane adduct and 2-15 parts of acrylic acid hydroxyalkyl ester, wherein the polyisocyanate-trimethylolpropane adduct is synthesized by polyisocyanate and trimethylolpropane. The surfactant capable of realizing radiation curing of the waterborne fluorinated polyurethane acrylate canbe applied in waterborne UV (ultraviolet) cured resin system and is good in compatibility with the system, the surface tension of the system can be rapidly reduced, the surface leveling can be promoted, and an effect of a mirror surface leveling film is achieved.

The invention discloses an anti-oil stain powder coating and a preparation method thereof. Raw materials for the powder coating comprise an epoxy resin E-12, a saturated polyester resin, polystyrene, hexamethylenetetramine, nanometer titanium dioxide, precipitated barium sulphate, an organosilicon leveling agent, simethicone, catechol, glycerol triacetate, polymethacrylate and a film-forming resin. The powder coating provided in the invention is a green environment-friendly coating which is nontoxic, high-temperature-resistant and free of a solvent and discharge of VOC; the epoxy resin E-12 is used as a main raw material for the coating and the film forming resin is added at the same time, so film forming ability of the powder coating is enhanced, surface leveling of the powder coating is improved, high gloss retention is realized, anti-oil stain performance is good, and decorative performance the powder coating is improved; a prepared finished product has a high qualified rate, and industrial large production can be realized.

Raw paper for printing Japanese paper adhesive tapes is prepared from following raw materials: long-fiber wood pulp, short-fiber chemical mechanical wood pulp, bamboo pulp, a filling material, a wet-strength agent, coating latex and an extract liquid of cactus. The raw paper is prepared through the steps of performing pulping treatment, adding additives to the pulp, supercooling the pulp, performing papermaking, coating the paper, drying the paper and performing press polish and cutting to obtain the raw paper. The raw paper for printing Japanese paper adhesive tapes has excellent surface flatness, high printing clearness, good printing effect, excellent softness, excellent dry and wet strengths, excellent delamination resistance strength and anti-tear performance, excellent water- and solvent-resistant performances and excellent anti-radiation performance and temperature resistance. The method can reduce aging in the raw paper for printing Japanese paper adhesive tapes and prolonging the service life of the raw paper for printing Japanese paper adhesive tapes.

The invention discloses a lanthanum oxide containing powder coating and a preparation method thereof. The powder coating comprises the following raw materials by weight: 40-50 of saturated polyester resin, 45-50 of polybutylene terephthalate, 65-70 of polytetrafluoroethylene, 40-50 of alumina, 23-28 of silica gel powder, 20-25 of talcum powder, 3.5-4.5 of lanthanum oxide, 9-11 of activated carbon powder, 2.5-3.5 of fatty alcohol-polyoxyethylene ether and 2.5-3.5 of a film forming agent. The powder coating provided in the invention adopts saturated polyester resin and polybutylene terephthalate as main raw materials, and lanthanum oxide, activated carbon powder and the film forming agent are added to enhance the mixing property among each raw material. At the same time, the surface leveling of the powder coating is improved. With high gloss retention, the powder coating has improved decorative property. And the prepared product has a high qualified rate.

The invention discloses a high-strength heatproof powder and a preparation method thereof. Raw materials for the powder coating comprise an epoxy resin E-06, a drying oil alkyd resin, m-dimethylbenzene, 2-ethyl-4-methylimidazole, titanium dioxide, aluminum nitride powder, polyvinyl ether, resorcinol, methyl methacrylate, citric acid and a film-forming resin. The powder coating provided in the invention is a green environment-friendly coating which is nontoxic, high-temperature-resistant and free of a solvent and discharge of VOC; the epoxy resin E-06 is used as a main raw material for the coating and the film forming resin is added at the same time, so film forming ability of the powder coating is enhanced, surface leveling of the powder coating is improved, high gloss retention is realized, heatproof performance lasts for a long time, and decorative performance the powder coating is improved; a prepared finished product has a high qualified rate, and industrial large production can be realized.

The invention discloses an anti-doodling polyurethane powder paint, which comprises the following raw materials by mass: 400-500 parts of hydroxyl-terminated polyester resin, 200-250 parts of closed polyisocyanate, 40-60 parts of polyvinylidene fluoride, 120-150 parts of rutile titanium dioxide, 60-70 parts of barium sulfate, 8-10 parts of a leveling agent, 8-10 parts of a wetting accelerator, 3-5parts of benzoin, 1 part of pigment carbon black, 0.5 part of phthalocyanine blue and 2 parts of iron oxide yellow. After the powder paint is coated to form a film, the surface hardness is high (up to 4H), the surface is hardly damaged in the repeated wiping process, and also has the characteristics of hydrophobicity, oleophobicity, strong anti-fouling ability, easy cleaning and good anti-doodling effect. The invention also discloses a preparation method characterized by convenient operation, low cost and short making period, and application of spraying the polyurethane powder paint to a metal surface and performing curing into a film by high-temperature baking.

The invention discloses powdery paint containing nano-attapulgite and a preparation method thereof. The powder paint comprises the following raw materials: an epoxidized polybutadiene resin, a rosin resin, nano-attapulgite, polyethylene glycol, dimethylimidazole, bronze red pwder, hollow glass beads, ultramicro-wax-powder, isooctyl polyethenoxy ether, an anti-oxidant 565, tributyl citrate, chitosan, and a film forming resin. The powder paint provided by the invention is green environment-friendly type paint, and has the characteristics of nontoxicity, high temperature resistance, no solvent contained, and no VOC emission; by adopting an epoxidized polybutadiene resin as a main raw material and adding in a film-forming resin and nano-attapulgite, the film-forming ability of the powder paint is enhanced, the surface levelling property of the powder paint is improved, high gloss retention is achieved, and the decorative quality of the powder paint is improved; and qualified rates of prepared finished products are high, and industrialized mass production can be realized.

The invention discloses polyester resin for high filling mark covering powder paint and a preparation method thereof. Neopentyl glycol, pentaerythritol, terephthalic acid, m-phthalic acid and 1,4-cyclohexanedicarboxylic acid are used as raw materials to be prepared into the polyester resin through esterification polymerization. The powder paint prepared by the polyester resin has excellent film coating performance, is particularly applicable to the field of automobile hubs and the like, and has high filling mark covering performance; good surface levelling property, hardness, adhesive force, salt spray resistance, light resistance and aging resistance are realized.

The invention relates to the field of water-gas isolation and safety in industries like food, drug safety, green building, aviation, spaceflight, energy, the war industry, scientific research and the manufacturing industry, and provides a full barrier film and a vacuum full barrier chamber/bag and a production process thereof. The film is prepared through compounding of pure aluminum glass fiber cloth, pure aluminum brown paper, multilayer polyvinylidene chloride (PVDC), polyvinyl alcohol (PVA for short), polyethylene terephthalate (PET), pure aluminum (Al) and high pressure polyethylene (LDPE), polypropylene (PP) or ethane-vinyl acetate copolymer (EVA). A multi-layer buffer structure has a full barrier effect on gas and water vapor and enables the leakage value of gas and water vapor to be zero. The full barrier film has significant influence in vacuum insulation, quality guaranteeing and efficiency guaranteeing of products like bags, bottles and boxes prepared from the full barrier film and exerts substantial effects; due to usage of a comprehensive compound manner, the full barrier film has strong structural capacity and excellent weatherability, can meet production requirements of hot forming and presents extremely excellent barrier performance and outstanding thermal deformation temperature when used in products and long-acting system engineering having extremely high barrier requirements.

The invention discloses a preparation method of a high-glossiness wear-resistant impregnated paper, and belongs to the technical field of preparation of decoration paper. The method is characterized in that alumina powder surface is effectively modified through xylene formaldehyde resin, and an oleophylic structure of a dimethyl benzene ring is introduced into a molecular structure of the aluminapowder, and thus the hydrophobicity of the alumina powder can be improved; in addition, the carbon black has certain chemical activity and is provided with a plurality of surface activation points, sothat the carbon black easily reacts with mixed powder during stirring. According to the method, paraformaldehyde solution, melamine, polyvinyl alcohol and citric acid are mixed and stirred and reactunder certain temperature to obtain melamine formaldehyde resin; the melamine formaldehyde resin is modified through epoxy chloropropane; in addition, epoxy chloropropane is added to a base material;hydroxide radical in the base material easily reacts with an epoxide group of epoxy chloropropane to generate an ether bond, and thus the hydroxide radical cannot be further oxidized during curing, and as a result, the glossiness of the impregnated paper can be improved; the method has a good application prospect.