41results about How to "Low VOCs content" patented technology

The invention relates to a surface coating technique, and aims to provide a preparation and coating method of a water-based ceramic anticorrosive paint. The method comprises the following steps: (1) component A precuring: regulating the pH value of a water-based silica sol by using a catalyst, adding deionized water and composite organosilane, and stirring to react to obtain the component A; (2) component B precuring: mixing a water-based silica sol, a pigment, a filler and assistants, and grinding to obtain the component B; and (3) mixing before use: mixing the component B with the precured component A, and oscillating, stirring or rolling to implement compounding and curing, thereby obtaining the water-based ceramic anticorrosive paint. The water-based ceramic paint has low content of VOCs (volatile organic compounds), and the content of VOCs of the final paint can be less than 100 g/L through the control of the alkoxy silane consumption; the prepared coating is environment-friendly and energy-saving, has the advantages of high hardness and favorable temperature resistance, and has certain toughness; the coated film can not easily crack; and the hardness can be enhanced by 1-2H, and the shock resistance is enhanced to 20-30cm.Kg.

The invention discloses a water-based non-chrome-zinc-aluminum anticorrosive paint, which is prepared from a component A and a component B with the mass ratio being (1 to 1.3):1. The component A is prepared from the following materials in percentage by weight: 20 to 32 percent of zinc-aluminum powder, 15 to 25 percent of wetting agent, 1 to 5 percent of dispersing agent, and 0.5 to 1.5 percent of nanometer SiO2; the component B is prepared from the following materials in percentage by weight: 15 to 25 percent of organic silicon resin emulsion, 20 to 30 percent of deionized water, 0.5 to 1.0 percent of corrosion inhibitor, 0.05 to 0.5 percent of thickening agent, 1 to 5 percent of adhesion promoter, 0.05 to 0.5 percent of antifoaming agent, and 0.05 to 0.5 percent of coalescing agent, flatting agent and brightener. The paint provided by the invention is low in content of VOCs (Volatile Organic Chemicals), green and environmentally-friendly, high temperature resistant, high in adhesive force and good in corrosion resistance, and the anti-salt spray capability is larger than or equal to 720h.

The invention discloses a waterborne anti-corrosion heat insulation camouflage painting composite coating which sequentially comprises waterborne graphene heavy-duty anti-corrosion priming paint, waterborne heat insulation intermediate paint and waterborne camouflage painting finishing paint from inside to outside. The waterborne graphene heavy-duty anti-corrosion priming paint is provided with anepoxy zinc-rich system added graphene, an anti-corrosion function is achieved by labyrinth effects of the graphene and 'zinc-alkene' electrochemical synergy mechanisms, the heat insulation intermediate paint barriers dept transfer of heat by the aid of low-heat-conduction particles, so that relatively stable inner temperature of a base material is kept, the camouflage painting finishing paint isprovided with high-weather-resistant acrylic acid polyurethane, and different tinting pigments and heat reflection particles are matched, so that visible light-infrared camouflage and sunlight reflection are achieved. The composite coating is simple in composition structure and low in VOCs (volatile organic compound) content, meets national environment protection requirements and can be applied tointegrated protection requirements of industries such as military vehicles, equipment and launchers for corrosion protection, heat insulation and visible light-infrared camouflage and stealth.

The invention relates to an aqueous three-dimensional effect color changing orange-peel coating material, a preparation method and applications thereof, wherein the aqueous three-dimensional effect color changing orange-peel coating material comprises the following raw materials by weight: 25-50 parts of an aqueous hydroxy acrylic emulsion, 5-20 parts of a curing agent, 2-5 parts of a cosolvent, 1-5 parts of organic silicone powder, 1-5 parts of nanometer alumina, 0.5-2 parts of an orange-peel auxiliary agent, 0.1-3 parts of nanometer negative ion powder, 1-10 parts of thermochromic powder, 0.05-0.5 part of nanometer zinc oxide, 0.1-1 part of lithium magnesium silicate, 0.1-0.2 part of a pH value adjuster, 0.1-0.2 part of an antifoaming agent, 2-5 parts of a film forming aid, 0.3-0.5 partof a dispersant, 0.3-0.5 part of a base material wetting agent, 5-10 parts of deionized water, and 0.5-1.0 part of a thickener. According to the present invention, the obtained coating material has low VOCs content, and the coating has advantages of good light resistance, good chemical resistance, good hardness, good antibacterial property, good air purification performance, good discoloration indication and three-dimensional orange-peel effect.

The invention discloses a temperature adjustment system of RTO oxidizing furnace. According to the system, organic waste gas enters an RTO heat accumulation chamber through a switching valve, and enters an oxidizing chamber for combustion after being heated by a heat accumulator, the combusted high-temperature purified gas then enters the heat accumulation chamber for heating the heat accumulator, and is discharged to a chimney through a draught fan after being cooled; when the ultratemperature of an RTO oxidizing chamber exceeds the normal running temperature 85DEG C above of RTO, a circulating cooling loop is started for circularly supplementing gas so as to guarantee the normal running of the system. A part of purified gas is introduced to enter the oxidizing chamber or mix with waste gas, and after the draught fan, the flowrate of the purified gas is controlled through an adjusting valve. A part of purified gas is introduced to enter the oxidizing chamber, the temperature of the oxidizing chamber is adjusted by utilizing the low temperature of the purified gas. A part of purified gas is introduced to mix with waste gas, so that the content of VOC can be reduced, the temperature of the oxidizing chamber can be adjusted, and the normal running of the temperature of the whole RTO oxidizing furnace can be guaranteed.

The invention relates to an environment protective type casting system of aerosol, which comprises one or several propellants, by employing the environment-friendly type propellant separately, or using the environment-friendly type propellant system consisting of several propellants, the compatibility of the feed liquid can be improved substantially.

The invention discloses an environment-friendly water-based insect aerosol and a preparation method of the environment-friendly water-based insect aerosol, wherein DME serves as propellant for filling. The prepared environment-friendly water-based insect aerosol is composed of quasi pyrethrin-class insecticidal active compounds, water, the propellant and the like, and an aerosol tank is filled with the quasi pyrethrin-class insecticidal active compounds, the water, the propellant and the like. The insecticidal active compounds are the compound of quasi pyrethrin-class insecticides, and the mass ratio of the insecticidal active compounds is 0.33-0.60%; the aerosol further comprises, by mass, 1-4% of surface active agents, 0.01-0.12% of corrosion inhibition anti-corrosion agents, 0.1-0.28% of penetrating agents, 6-18% of solubilizing agents, a proper number of complexing agents, a proper number of wetting agents, a proper number of defoaming agents, excipient and 0.01-0.026% of essences, wherein the excipient is purified water or deionized water, and the sum of the mass percents of the raw materials and the auxiliary materials is 100%. The liquid contained in the environment-friendly water-based insect aerosol is homogeneous and transparent. The retention period is more than four years. Mosquitoes, flies, cockroaches, ants, white ants, mites, lice, bugs, ticks, fleas and the like are killed in an environment-friendly mode, and the repelling function and the function of the long lasting period are achieved. The aerosol is an efficient and high-cost-performance product. The aerosol does not exist in domestic and foreign markets.

The invention discloses a preparation method of a high brightness waterborne aluminum pigment. The method includes the steps of: adding spherical aluminum powder, an alcohol and ether solvent, and anassistant into a ball mill for ball milling, removing an oxide layer from the surface of the spherical aluminum powder, and flaking the spherical aluminum powder to obtain flake aluminum particles I;adding a silane coupling agent, tetraethyl orthosilicate, water and a PH regulator into a slurry of the flake aluminum particles I, and then further performing ball milling to obtain a mixture of flake aluminum particles II and a solvent; pumping the mixture of the flake aluminum particles II and the solvent out into a container, and conducting heat preservation for 6-12h at 50-60DEG C; and carrying out solid-liquid separation on the heat preserved mixture of the flake aluminum particles II and the solvent. The pigment and the preparation method provided by the invention have the advantages that the product has no need for solvent replacement, the waterborne aluminum pigment can be prepared at a time, the preparation process is simple, saves cost, and avoids solvent wasting; the product has very low VOCs content, and meets the environmental protection requirements; the time of flake aluminum particle exposure during solvent replacement is saved, and the waterborne aluminum pigment hasgood brightness.

The invention relates to a chromotropic paint used for a medical instrument and a preparation method and an application thereof. The chromotropic paint comprises the following raw materials in parts by weight: 25-50 parts of an aqueous hydroxyl acrylic emulsion, 5-20 parts of a curing agent, 2-5 parts of a cosolvent, 1-5 parts of organic silicone powder, 1-5 parts of nano alumina, 0.05-0.5 parts of nano zirconia, 0.1-3 parts of nano negative ion powder, 4-8 parts of titanium dioxide, 0.05-0.5 parts of nano zinc oxide, 1-6 parts of temperature-sensitive color-changing powder, 0.1-1 part of silica sol, 0.1-0.2 parts of a pH conditioning agent, 0.1-0.2 parts of an antifoaming agent, 2-5 parts of a film-forming auxiliary agent, 0.3-0.5 parts of a dispersant, 0.3-0.5 parts of a base material wetting agent, 5-10 parts of deionized water, and 0.5-1.0 parts of a thickening agent. The VOCs content of the paint is low, and a coating has good light resistance, chemically-resistant performance, hardness, bacterinertness, air cleaning performance, and color-changing indication effect.

The invention relates to a fireproof bacteriostatic aqueous terrace paint used for bus and a preparation method and an application thereof. The paint comprises the following raw materials: an aqueousepoxy emulsion, a curing agent, a cosolvent, organic silicone powder, nano alumina, nano zirconia, nano negative ion powder, a fire retardant, nano zinc oxide, silica sol, a pigment, a pH conditioningagent, an antifoaming agent, a film-forming auxiliary agent, a dispersant, a base material wetting agent, deionized water, and a thickening agent. The preparation method is characterized in that theraw materials excepting the curing agent, the cosolvent and 1/3-1/2 formula amount of the deionized water are prepared to obtain a component A, the curing agent, the cosolvent and 1/3-1/2 formula amount of the deionized water are prepared to obtain a component B, before use, the component A and the component B are mixed to obtain the product. The VOCs content of the paint is low, and a coating hasgood light resistance, chemically-resistant performance, flame resistance and hardness, and the paint has bacterinertness and air cleaning performance, and is suitable for the bus.

The invention relates to the field of coatings, and discloses a water-based polyamide-imide anti-corrosion non-stick coating and a preparation method thereof. The water-based polyamide-imide anti-corrosion non-stick coating comprises 30-60 parts of a fluororesin emulsion, 20-40 parts of a PAI emulsion, 15-30 parts of an anti-corrosion functional filler, 10-20 parts of a pigment, 1-5 parts of an auxiliary agent, 1-5 parts of a pH regulator, and 10-30 parts of water. According to the invention, PAI resin is firstly prepared, then an anionic surfactant and a nonionic surfactant are compounded as an emulsifier, and the PAI emulsion with good stability is prepared by a phase inversion method. The PAI emulsion and the fluororesin emulsion form the composite resin, the flaky or flaky anticorrosive filler is added into the composite resin to obtain the polyamide-imide anticorrosive non-stick coating, and the anticorrosive filler and the adhesive resin can form a compact coating, so the corrosion resistance of a coating film can be effectively enhanced.

The invention provides a VOCs (volatile organic chemicals) removing technology of an automobile painting industry. The VOCs removing technology of the automobile painting industry is applicable to removing of VOCs in painting exhaust gas of the automobile industry, the steamer industry, the packing industry and other industries. The technology is characterized in that fine powdered coal, clean water and filtrate of a pressure filter are mixed in a stirring sizing mixing barrel, and the pH is regulated; the fine powdered coal is fed into a flotation column; the painting exhaust gas is introduced into the flotation column through a bubble generator; the exhaust gas and the coal slurry are subjected to pollutant dissolving, absorbing and purifying in a pipeline and the flotation column, thus the pollutant-absorbed fine coal slurry and the purified gas can be obtained; the VOCs-absorbed fine coal slurry is dehydrated to be used as fuel; the dehydrated filtrate is returned into the sizing mixing barrel for recycling; the purified gas is directly exhausted or conveyed into the subsequent treatment process; the removing rate of the VOCs in the treated painting exhaust gas reaches 60-75%; the pollutant-absorbed powdered coal is used for combustion. Therefore, the harmless treatment of pollutants and the utilization of an absorbent without value reduction can be achieved. The technology is high in treatment efficiency, low in operation cost, simple and convenient to operate, and obvious in economic benefit.

The invention relates to an environment-friendly household water-based insecticidal aerosol filled with a propellant of dimethyl ether (DME). The prepared environment-friendly household water-based insecticidal aerosol is composed of pyrethroid insecticidal original drug and the like, water, and the propellant which are filled in an aerosol can. The insecticidal original drug is a complex of plant-sourced insecticides with a mass ratio of 0.2-0.61%. The aerosol also comprises, by mass, 1-2.8% of a surfactant, 0.01-0.13% of a corrosion inhibitor, 0.1-0.28% of a penetrating agent, 6-13% of a solubilizer, a proper amount of a complexing agent, a proper amount of a wetting agent, a proper amount of an anti-foaming agent, an excipient of purified water or deionized water, and less than 0.026% of an essence. A total amount of the mass percentages of the above raw materials and auxiliary materials is 100%. The content liquid of the environment-friendly household water-based insecticidal aerosol is homogeneous and transparent. A keeping time is more than 4 years. With the aerosol, mosquitoes, flies, cockroaches, ants, termites, mites, lice, bedbugs, ticks, fleas, and the like can be killed with an environment-friendly manner. The aerosol also has multi-functions (MIK) such as repelling and long effective life. The aerosol is a product with high efficient and high cost performance. Currently the product cannot be found in domestic and international markets.

The invention relates to the field of semiconductor cleaning agents, and particularly discloses a semiconductor hydrocarbon cleaning agent and a preparation method thereof. The hydrocarbon cleaning agent is prepared from the following raw materials in parts by weight: 40-80 parts of a hydrocarbon solvent, 10-60 parts of an alcohol ether solvent, 1-5 parts of a fine particle remover, 0.1-10 parts of a scaling powder remover, 0.5-5 parts of an anti-whitening agent and 0.1-5 parts of a surface tension aid. The preparation method comprises the following steps: S1, weighing the hydrocarbon solvent, the alcohol ether solvent, the fine particle remover, the flux remover, the anti-whitening agent and the surface tension additive in parts by weight; S2, uniformly mixing a hydrocarbon solvent and an alcohol ether solvent to prepare a mixed solution A; S3, uniformly mixing a fine particle removing agent, a scaling powder removing agent, an anti-whitening agent and a surface tension additive to prepare a mixed solution B; S4, pouring the mixed solution B into the mixed solution A, and uniformly stirring to obtain a mixed solution C; and S5, subjecting the mixed solution C to standing treatment, and after the mixed solution C is stable, preparing a hydrocarbon cleaning agent finished product. The hydrocarbon cleaning agent has the advantage of being low in VOCs content.

The invention discloses an automotive aqueous polyurethane coating. The automotive aqueous polyurethane coating comprises the following components in parts by weight: 30 to 70 parts of a solvent-free polyurethane resin prepolymer, 30 to 70 parts of water, 0.1 to 5 parts of an amino cross-linking agent, 0.1 to 5 parts of an amino neutralization reagent and 0.1 to 2 parts of a degerming agent. The invention also discloses a preparation method of the automotive aqueous polyurethane coating. The aqueous polyurethane coating has the advantages of oily polyurethane such as high hardness, high adhesive force, solvent resistance, acid and base resistance and corrosion resistance and besides, and has the advantage that the VOCS content of the aqueous coating is low.

The invention discloses household water-based insect aerosol prepared by filling aerosol, namely hydrocarbon HAPs or LPG, as a propellant and a preparation method of the household water-based insect aerosol. The prepared household water-based insect aerosol comprises insecticidal active compounds and the like filled in an aerosol tank, water and a propellant, wherein the insecticidal active compounds are compounds of botanical insecticides; the mass percent of the insecticidal active compounds is 0.32-0.62%. The household water-based insect aerosol also comprises 1-6% by mass of a surfactant, 0.01-0.12% by mass of a corrosion inhibitor, 0.1-0.28% by mass of a penetrating agent, 16-39% by mass of a solubilizer, proper amount of a complexing agent, a wetting agent and a defoaming agent, an excipient and 0.01-0.026% by mass of essence, wherein the excipient is purified water or deionized water; the total mass percent of the raw and auxiliary materials is 100%. The household water-based insect aerosol is unnecessary to shake before use as the content liquid of the household water-based insect aerosol is homogenous and transparent, is used for environment-friendly killing mosquitoes, flies, cockroaches, ants, termites, mites, lice, bugs, ticks, fleas and the like, has the multifunction (MIK) characteristics of repellence and long persistence, is a product with high efficiency and high cost performance and is not available on the domestic and foreign markets.

The invention provides a water-based polyurethane acrylate emulsion, a preparation method thereof and a water-based matt paint; the water-based polyurethane acrylate emulsion comprises the following raw material components by weight: 20-80 parts of a non-emulsified polyurethane acrylate prepolymer; 0-70 parts of polyurethane acrylate oligomer; 0-50 parts of a first ultraviolet light curing monomer; and 50-70 parts of water. The waterborne polyurethane acrylate emulsion is good in performance, and the waterborne matt powder paint prepared from the waterborne polyurethane acrylate emulsion is smooth in appearance, high in matt powder fineness and good in wear resistance.

The invention discloses a VOCs (volatile organic compounds) gas recycling apparatus, comprising: a drying tank, wherein the outer wall of the drying tank is provided with a heating device, and the drying tank is used for heating and drying VOCs gas so that hydrocarbons boil into hydrocarbon vapor; a gas-liquid separator connected with the drying tank, wherein a first filter is arranged in the gas-liquid separator, the outer wall of the gas-liquid separator is provided with a condensing device, and the gas-liquid separator is used for separating hydrocarbon gas in the hydrocarbon vapor and condensing the hydrocarbon gas; a vacuum pump connected with the drying tank through the gas-liquid separator and used for vacuumizing the drying tank; a refrigerating mechanism connected with the gas-liquid separator through the vacuum pump and used for condensing the hydrocarbon gas from the gas-liquid separator; a filtering discharging device connected with the refrigerating mechanism and used forfiltering and discharging hydrocarbon gas from the refrigerating mechanism. The VOCs gas recycling apparatus allows the VOCs content in the gas, discharged after hydrocarbon washing, to be greatly reduced, so that the gas meets the national emission standard and environmental pollution is reduced.

The invention belongs to the technical field of coatings, and particularly discloses a powder coating and a preparation method and application thereof, and the powder coating comprises fluorocarbon resin, acrylic resin, a filler, an auxiliary agent and an inorganic pigment; the fluorocarbon resin is selected from vinylidene fluoride homopolymers with the purity being greater than or equal to 99.99%, and the acrylic resin is selected from methyl methacrylate homopolymers. According to the powder coating, the thermoplastic acrylic resin and the fluorocarbon resin are selected as a film forming system, the formed coating has high weather resistance, then multiple auxiliaries are added, the toughness and adhesive force of the coating are further improved, and the conventional performance of the coating can be met under the condition that the weather resistance reaches the standard, and the coating is ensured to have long-acting protection and beauty effects on high-end building exterior decorations.

The invention discloses a spraying absorption system for waste lithium battery disassembly waste gas treatment. According to the present invention, the absorption system adopts an alkaline spraying absorption liquid, and the absorption liquid is subjected to circulation spraying multiple times in an absorption tower; the absorption tower has a simple closed structure, and the liquid circulation isperformed in the absorption tower so as to reduce the overflow of the absorption liquid and the gas and improve the safety of the working environment of the worker; and the absorption liquid is circulated multiple times in the absorption tower to completely utilize the absorption liquid at a maximum so as to save the cost. The invention further discloses a method for applying the spraying absorption system for waste lithium battery disassembly waste gas treatment.