75results about "Epoxy resin coatings" patented technology

The invention provides polyaniline-graphene composite based anticorrosive paint and a preparation method thereof. The polyaniline-graphene composite based anticorrosive paint comprises, by weight, 20-90 parts of film former, 0.1-20 parts of polyaniline-graphene composite, 1-10 parts of pigment, 1-10 parts of filler, 0.1-3 parts of sag-proof agent, 0.1-4 parts of dispersant, 0.01-2 parts of flatting agent, 0.01-2 parts of defoaming agent, and 1-50 parts of solvent. The paint has good physical anticorrosion as graphene is high in radius-thickness ratio and high in flexibility and has electromechanical anticorrosion by the aid of polyaniline loaded on the surface of the graphene, and under synergism of the polyaniline and the graphene, the paint has fine metal corrosion resistance. The anticorrosive paint achieves passivation and corrosion inhibition of metal substrates, avoids use of heavy metals causing environmental pollution, such as chromium and the like, and is simple to prepare, low in cost and easy in industrial batch production.

The present invention is directed to novel organometallic complexes as catalysts for the reaction of compounds with isocyanate and hydroxyl functional groups to form urethane and/or polyurethane and the process employing such catalysts. More particularly, the present invention is directed to novel complexes of zinc(II) with substituted amidines. These novel catalysts are useful for the production of urethanes and polyurethanes which are important in many industrial applications.

The invention provides a novel method for preparing a latent nonionic self-emulsifying epoxy curing agent. The method comprises the following steps of: reacting long alkyl chain fatty amine with diglycidyl ether to prepare an addition product of which the middle part is connected with a long hydrophobic side chain and two ends are provided with epoxy groups; and reacting polyamine with a carbonyl compound to prepare an imine compound which contains secondary amine, and sealing the end to prepare the latent nonionic self-emulsifying epoxy curing agent. Under water environment, the imine structure in the curing agent hydrolyzes hydrophilic amino, and the curing agent contains the long hydrophobic alkyl chain, so the curing agent has the functions of emulsifying and curing an epoxy resin. The curing agent can be used for water-based epoxy emulsion coatings, water-based epoxy resin modified emulsified asphalt and cement and the like, and has excellent adhesion performance of ketimine on a wet surface. Due to the introduction of hydrophobic chains, the stability of the imine curing agent is improved in the water environment, and the performance of the curing agent in the aspect of wet surface or underwater adhesion can also be improved.

The present invention provides a preparation method for a light-heat dual-cured woodware UV varnish coating. The method comprises: uniformly mixing an acrylic acid monomer, a catalyst and a polymerization inhibitor; adding the resulting mixture to epoxy resin with a temperature of 90-120 DEG C to carry out a reaction at a certain temperature; adopting acid value detecting to monitor the extent of the reaction, wherein the epoxy acrylate (EA) is obtained when the acid value is reduced to less than 5 mg/g; adding a thermal initiator, a photoinitiator, an antifoaming agent, a wetting and dispersing agent, a thickening agent and a leveling agents to the EA, then mixing and stirring to obtain the UV varnish coating. The prepared UV varnish coating through the method provided by the present invention has the dual functions of light curing and heat curing, the surface dry can be rapidly achieved in 4-8 seconds under the light intensity of 250-400 mJ/cm<2>, the film forming and the curing can be achieved in 1-5 hours at the temperature of 50-70 DEG C. In addition, the prepared UV varnish coating has characteristics of high adhesion, good chemical corrosion resistance, high film hardness and low cost, and provides more excellent construction performance, curing method and film performance than ordinary UV-cured coatings.

The invention discloses functional composite coating and a preparing method thereof and belongs to the technical field of coatings. The functional composite coating solves the problems that a corrosion-resisting coating in the prior art is large in thickness, low in elasticity, easy to damage in larger stress impact, poor in friction resistance, poor in marine corrosion resistance, short in service life and unable to be used in a wider temperature range. The composite coating is composed of a base coat, a floating coat and a cover coat, wherein the base coat is composed of a zinc chromate primer and a zinc chromate primer curing agent according to a weight ratio of 8 to 1, the thickness of the base coat is 35-65mum, the floating coat is composed of epoxy resin, an epoxy curing agent, a flexibilizer and a filling agent, the thickness of the floating coat is 0.25-0.45mum, the cover coat is composed of fluorocarbon painting and functional painting according to a weight ratio of 1 to 1, and the thickness of the cover coat is 0.4-0.8mum. The composite coating has excellent corrosion resistance, friction resistance and impact resistance, is small in coating thickness and high in elasticity, can resist high-low temperature change of seawater and can be used in a wider temperature range.

The invention belongs to the technical field of functional building paint and relates to photochromic glass paint and a preparation method thereof. The photochromic glass paint is prepared from the following raw materials in weigh ratio: 20 to 50 parts of prepolymer, 5 to 20 parts of active monomer, 0.1 to 1 part of initiator, 5 to 20 parts of color changing powder, 0.1 to 1 part of wetting agent,0.1 to 1 part of dispersant, 0.5 to 3 parts of adhesion promoter, 0.5 to 2 parts of enhancer and 0.5 to 3 parts of nano material. The surface of general glass is simply coated with one layer of the photochromic glass paint disclosed by the invention, so that the general glass can achieve a photochromic effect; thus, the surface of the general glass can be coated with the paint in a large scale infactories to manufacture photochromic glass, and construction can be performed in existing building sites to manufacture the photochromic glass.

A composition comprising a base and curing agent that when mixed, applied to a substrate and cured, comprise a thick non-skid coating having a plow field texture with an aggressive profile and with exceptional mechanical properties which are maintained after exposure to high heat conditions.

The invention discloses an anti-corrosion and wear-resisting coating for a throwing disc of a pneumatic type feeder. The anti-corrosion and wear-resisting coating is prepared from a POSS (polyhedral oligomeric silsesquioxane) coated multiwalled carbon nanotube, bisphenol A epoxy resin, phenolic resin, wear-resisting filler, a self-lubricating material, an antifoaming agent, a leveling agent, a curing agent and a solvent. According to a preparation method of the anti-corrosion and wear-resisting coating, POSS and a multiwalled carbon nanotube are used for preparing the POSS coated multiwalled carbon nanotube firstly, then the POSS coated multiwalled carbon nanotube are mixed with the bisphenol A epoxy resin, the phenolic resin, the wear-resisting filler, the self-lubricating material, the antifoaming agent, the leveling agent and the solvent in proportion, coating slurry is prepared, the coating slurry is mixed with the curing agent and cured at the room temperature for film forming during construction, and the anti-corrosion and wear-resisting coating is obtained. The preparation process of the coating is simple to operate, and the prepared coating has excellent corrosion resistance, wear resistance, self-lubrication and water lubrication and is an ideal anti-corrosion and wear-resisting material for the throwing disc of the pneumatic type feeder, an oil conveying pipe and the like under severe working conditions.

The invention relates to ultraviolet (UV) gloss oil. The UV gloss oil is prepared by stirring and mixing the following components in percent by weight: 40 to 50 percent of epoxy UV resin, 10 to 12 percent of amine functional monomer, 2 to 4 percent of active diluting agent, 10 to 18 percent of photoinitiator, 1 to 3 percent of trimethylol propane triacrylate, 6 to 15 percent of acrylic resin, 6 to 8 percent of tackifier, 3 to 5 percent of lubrication leveling agent, 0.3 to 0.5 percent of defoaming agent, 2 to 4 percent of wear-resisting assistant, and 10 to 25 percent of mixing solvent. The invention also relates to a preparation method for the UV gloss oil. The UV gloss oil provided by the invention has various excellent performance, excellent binding performance with printing ink, the characteristics of high glossiness, high leveling property, little odor, high wearing resistance and the like; and moreover, the UV gloss oil provided by the invention only needs one process when used in UV glazing, a priming step is omitted, the operating cost is saved, and the work efficiency is improved.

The invention provides a weather-resistant paint for outdoor tent support bars, which is prepared from the following components in parts by weight: 40-60 parts of epoxy resin, 5-15 parts of pigment, 5-10 parts of filler, 1-2 parts of dispersing agent, 1-2 parts of leveling agent, 1-2 parts of rust inhibitor, 1-2 parts of defoaming agent, 1-2 parts of drying agent, 1-2 parts of plasticizer, 1-2 parts of film formation assistant, 30 parts of acetone and 70 parts of water. The paint has the advantages of abundant raw material sources and low cost; and by matching various auxiliary materials with the main materials, all the components interact and are coordinated, so that the thermal-insulation paint has the characteristics of highlight irradiation resistance, aging resistance, rain water corrosion resistance, skid prevention and the like, and especially has excellent ultraviolet resistance and thermal-insulation property.

The invention relates to a double-component epoxy zinc-enriched primer and the making method thereof, used in anticorrosive engineering of steel constructions, such as pipelines, shop equipment, ships, bridges and storage tanks, comprising: adding mixed solvent of dimethylbenzene and normal butanol in epoxy resin, then adding in surface active modified polyurethane, gamma-glycidol trimethoxy silane, silicon oil and zinc powder, and mixing uniformly, grinding and then adding in polyurethane wax and blending uniformly into solution A; composing solution B by polyurethane and dimethylbenzene; and it is mixed of solutions A and B as used, where the content of zinc powder in the coating is above 80%, and it has excellent anticorrosive performance, convenient to construct.

The invention discloses a hardware surface coating process. The hardware surface coating process comprises the following steps that pressure casting is conducted on a hardware part, and then a spraying process is conducted. The spraying process comprises the steps of surface pre-treatment, priming paint spraying, baking in an oven, polishing treatment, and cleaning and drying. Finish paint is sprayed after priming paint spraying and drying are conducted three times, after the finish paint is dried, the whole hardware part is inspected, and a qualified product is packaged and warehoused. According to the hardware surface coating process, nano-molecules are added into the paint sprayed on the hardware part, so that interface bonding of priming paint and a coating is easily improved; the pressure casting process is adopted, so that the production efficiency of the product is improved, the procedures are simple, the surface roughness is good, a large number of machining procedures and devices are omitted, and raw materials are saved; and compared with traditional direct CNC machining based on aluminum materials, the machining cycle is shortened, labor is saved, and the cost is reduced.

Provided are a resin composition which offers both high transparency and a low linear expansion coefficient and can be used as a material for a dry film, and also a dry film obtained from this composition, an optical waveguide, and a photoelectric composite wiring board. The resin composition for an optical waveguide includes: (A) an epoxy resin constituted by a solid epoxy resin with one or less hydroxyl group in a molecule, and a liquid epoxy resin with one or less hydroxyl group in a molecule; (B) a curing agent with one or less hydroxyl group in a molecule; and (C) a nanosize silica sol, and contains no compound including two or more hydroxyl groups in a molecule as a resin component.

The invention belongs to the field of chemical coating, and particularly provides water-based epoxy thick slurry anticorrosive paint as well as a preparation method and application thereof, an anti-rust pigment, a pigment and a filler are prepared into water-based slurry by optimizing the novel anti-rust pigment and improving the existing process, the water-based slurry is added into a curing agent component, and the technical problem that the storage period of the paint is short due to the fact that the conventional anti-rust pigment is easily to promote epoxy ring opening polymerization reaction in an epoxy emulsion is solved. The prepared epoxy thick slurry anticorrosive paint has wide adhesive force and can be used for corrosion prevention of carbon steel, cold rolled steel, aluminum materials, machine processing surfaces, zinc-plated steel and the surface of each metal substrates hot-spraying zinc and other mild to medium-corrosion environments, and the coating has good salt-fog resistance and excellent corrosion resistance.

The invention discloses a super heat insulation coating loaded with nano titanium dioxide. The super heat insulation coating is prepared from the following raw materials in parts by weight: 38-42 parts of ethyl orthosilicate, an appropriate amount of ethanol and deionized water, 0.1-0.2 part of maleic anhydride, 0.7-0.9 part of hexamethyldisilazane, 0.4-0.5 part of 3-aminopropyl triethoxysilane, 0.4-0.5 part of nano titanium oxide, 70-75 parts of E-12 epoxy resin, 9-12 parts of ethylene glycol diglycid ether and 7-7.5 parts of triethanolamine. The coating disclosed by the invention uses silicon dioxide aerogel and has a super heat insulation property; by loading nano titanium dioxide to the aerogel, the ageing process of the aerogel is retarded, and the service life of the aerogel is prolonged; and by using hexamethyldisilazane to perform modification, the hydrophilic property of the aerogel is improved, and the phenomenon that the aerogel is broken up and degraded by absorbing water is reduced.

The invention provides a high-fidelity durable lightfast UV/UVLED curing coating for a note and a preparation method of the high-fidelity durable lightfast UV/UVLED curing coating. The high-fidelity durable lightfast UV/UVLED curing coating comprises a prepolymer, a pre-polymerization monomer, an initiator, an assistant, a stabilizer and an amine type accelerator, wherein the prepolymer is one of or a combination of more of aliphatic modified epoxy acrylate, acid modified urethane acrylate, aliphatic urethane acrylate, and aromatic urethane acrylate; the pre-polymerization monomer is one of or a combination of more of methacrylate, acrylate, and a vinyl ether monomer. The UV/UVLED coating has the characteristics of transparency, high whiteness and low glossiness, the original color of a printing material is not changed after the surface of the printing material is coated with the coating, and the coating is high in fidelity, and has the physical and chemical resistant properties meeting the requirements of the note when applied to the note.

The invention relates to the technical field of materials, and concretely relates to a high temperature-resistant coating and a preparation method thereof. The coating comprises, by weight, 25-30 parts of epoxy resin, 15-20 parts of polybenzimidazole, 6-8 parts of a high temperature-resistant inorganic nonmetal compound, 20-25 parts of a high temperature-resistant filler, 1-3 parts of a curing agent, 10-20 parts of a solvent and 1-3 parts of a silane coupling agent. A solvent-based coating system adopted in the invention solves the problems of difficult dispersion and poor stability of an aqueous coating system and the problems of poor waterproof property and poor weatherability of a coating film; and the surfaces of the high temperature-resistant filler and the high temperature-resistantinorganic nonmetal compound are modified with the silane coupling agent, so the prepared coating has the advantages of good surface stability, good anticorrosion, good resistance to air and water, long service life, and no foaming, cracking, whitening or delamination problems.

The invention relates to the field of metallic paint preparation, and particularly relates to a true copper metallic combination paint as well as a preparation method and a construction process of the paint preparation. The preparation method specifically comprises the procedure of applying high-anticorrosion epoxy iron red priming paint, true copper paint, true copper black coating stringing paint and true copper surface oil layer by layer on the surface to be constructed. The true copper metallic combination paint comprises four layers of paint, which are constructed and combined artistically and interact with one another, and has the advantages that the copper texture is strong, the anticorrosion property is good, the adhesion force is strong, fading is prevented, and acid, base and greasy dirt can be resisted, the weather-proof performance and the environment friendliness are excellent, and the similarity of the decorative effect of the paint and that of metal copper can reach over 95 percent. The preparation method for the true copper metallic combination paint is reliable, and the construction process is scientific and reasonable and is suitable for large-scale coating operation on a production line.

The invention provides a high-temperature-resistant powder paint. The high-temperature-resistant powder paint is prepared from, by weight, 60-70 parts of epoxy resin, 8-10 parts of polyester resin, 10-15 parts of organosilicon resin, 3-4 parts of dicyandiamide, 4-6 parts of pearl powder, 4-6 parts of low-melting-point glass micropowder, 1-2 parts of polyvinyl butyral, 0.2-0.4 part of sebacic dihydrazide, 1-2 parts of a titanate coupling agent, 10-15 parts of titanium dioxide, 6-8 parts of cordierite powder, 1-2 parts of 2,6-tert-butyl-4-methylphenol, 8-10 parts of core-shell polysiloxane particles and 1-3 parts of a modification agent. The paint is low in curing temperature and short in curing time, and a paint film is good in leveling property, strong in adhesion, good in appearance, resistant to acid and alkali resistance and good in high-temperature resistance.

The invention provides a full-frequency wave-absorbing high-temperature heat-insulating stealth integrated paint. The paint comprises: high temperature-resistant reinforced chopped fiber, pressure-resistant hollow microspheres, a wave-absorbing agent, resin and a solvent. According to the full-frequency wave-absorbing high-temperature heat-insulating stealth integrated paint, carbon nanotubes anda magnetic absorbent are effectively compounded and combined, so that the reflection and absorption performance of a coating can be improved. The paint coating has high-temperature resistance, heat insulation and full-frequency wave absorption, can be used on the outer surfaces of weaponry and aircrafts, achieves effective thermal protection on the weaponry and the aircrafts, and also has a full-frequency band stealth effect at the same time. The paint can be applied to various types of airplanes, missiles and the like which have requirements for high-temperature resistance, heat insulation and invisibility, and has important significance for improving the autonomous ability of national defense and military industry production in China and enhancing the comprehensive strength of China.

The invention discloses UV (ultraviolet)-highly-clean curtaining finish, which comprises the components by weight percentage as follows: 35-45% of 100% UV resin, 0.3-0.5% of defoamer, 1-2% of dispersant, 4-7% of initiator, 0.2-0.5% of flatting agent, 0.5-1% of antireflection agent and the balance of monomer. The 100% UV resin is trifunctional polyurethane acrylate resin or difunctional epoxyacrylate resin or a mixture of the trifunctional polyurethane acrylate resin and the difunctional epoxyacrylate resin. The monomer is acrylics, modified acrylics or mixtures of the acrylics and the modified acrylics. The antireflection agent is an alkylammonium salt and a special radical modified polysiloxane copolymer solution. The UV-highly-clean curtaining finish is high in clearness, and good in transparency, and has high brightness and smoothness and strong stereoscopic sensation, and a curtain is fully transparent. The paint film structure formed is good in flexibility and scratching resistance, and applicable for wood products such as wood furniture and wood floors.