141results about How to "Low VOC emission" patented technology

The present invention relates to a water fluororesin, its preparation and applicaltion. It is a multicomponent copolymer containing trifluorochloroethylene (A) and aliphatic carboxylic vinyl ester (B), and its composition contans (by weight portion ratio) A:B: water: emulsifying agent: initiator=15-40:10-70:90-160:0.5-8.0:0.1-1.0. Said invented product possesses good chemical stability and mechanical stability, and can be extensively used in the fields of building industry, wooden ware and paper-making industry, etc.

A composite structure includes a first layer, a support layer, and a urethane acrylate layer disposed between the first layer and the support layer. The first layer is a show surface of the composite structure. The urethane acrylate layer includes a urethane acrylate composition that includes a urethane acrylate adduct. The urethane acrylate adduct is the reaction product of an isocyanate component and a stoichiometric excess of a functionalized acrylate component. The isocyanate component has at least two isocyanate groups. The functionalized acrylate component has at least one isocyanate-reactive functional group that is reactive with at least one of the isocyanate groups for forming the urethane acrylate adduct. The resulting urethane acrylate composition is sufficiently low in viscosity for many processing applications, and the urethane acrylate layer including the urethane acrylate composition exhibits sufficient adhesion to the first layer and support layer.

The invention discloses a nano-composite nylon material with a spraying-free highlight performance and a preparation method thereof. The nano-composite nylon material is prepared according to the following steps: 1) mixing caprolactam, water and organic acid; 2) increasing temperature to 180-230 DEG C and reacting for 1-5h; 3) adding modified inorganic nanometer silicate, increasing temperature to 240-280 DEG C and reacting for 1-5h, thereby acquiring a prepolymer; 4) decompressing and polymerizing the prepolymer, thereby acquiring the nano-composite nylon material. A one-step in situ polymerization method is adopted by the invention; the compatibility of modified inorganic nanometer silicate and nylon is improved; the dispersion of the modified inorganic nanometer silicate in a nylon substrate is benefited; pure nylon has excellent mechanical property, thermal performance and spraying-free highlight performance; the nano-composite nylon material is simple in preparation process; the conditions can be easily controlled; the nano-composite nylon material is suitable for industrial production and can be widely applied to the production of the plastic shell products, such as, electric tool shells, automotive upholsteries and household appliances.

The invention discloses a coated water-based double-component fluorocarbon paint, and preparation and application thereof. Particularly, the paint comprises a component A and a component B in a mass ratio of (12-25):1. The component A is composed of deionized water, an anti-settling agent, a wetting and dispersing agent, a defoaming agent, a pigment, a water-based fluorocarbon resin, a substrate wetting agent, a leveling agent, a cosolvent, a catalyst, matting powder and a thickener; and the component B is composed of a polyisocyanate curing agent. The paint can be used for preparing a coated PET (polyethylene terephthalate) back panel film.

The invention discloses a silane coupling agent containing a vinyl ether chain segment, and a preparation method and an application thereof. The silane coupling agent is a novel silane coupling agent. The silane coupling agent is acquired through the catalytic reaction of the traditional coupling agent with a formula (IV) structure and fatty alcohol-polyoxyethylene ether or alicyclic alcohol polyoxyethylene ether. The application of the silane coupling agent disclosed by the invention in preparing a high-performance tread rubber by in situ modifying white carbon black can effectively reduce the VOC discharge in the size mixing process and in the use process of rubber products. The silane coupling agent disclosed by the invention also can be used for modifying the liquid phase of the white carbon black; the wet-process mixing can be realized; the problems of single method for modifying the white carbon black with the traditional silane coupling agent, large energy consumption in the processing process and serious pollution can be effectively solved; and the traditional coupling agent with the formula (IV) structure and the fatty alcohol-polyoxyethylene ether in low cost are taken as the synthesis raw materials, so that the use cost of the coupling agent is lowered.

The invention discloses a waterborne graphene anticorrosive paint. A waterborne epoxy resin and a waterborne epoxy curing agent are used as adhesives, the emission of VOC (volatile organic compounds)of the paint is greatly reduced, and the waterborne graphene anticorrosive paint is environmentally friendly. An adopted waterborne graphene anticorrosive slurry has the advantages of easiness in dispersion, high stability, and even distribution of sheet diameter, meanwhile, water is used as a dispersing medium, and the process is simple and reliable, is low in cost, and is suitable for large-scale industrial production; after the graphene is added into the anticorrosive paint, an electron is rapidly transferred to a zinc powder through graphene when a corrosive medium enters a coating, the graphene and the zinc powder react to form a dense zinc oxide protection layer, and the contact between a substrate and the corrosive medium is further isolated. The graphene is of a sheet structure, particularly a quite thin sheet structure, and the anticorrosive paint doped with the graphene has a quite excellent physical isolating effect; by adding the graphene into the anticorrosive paint, the environment pollution caused by the zinc powder is reduced, and the cost of the paint is reduced while the physical mechanical property of the coating is strengthened.

The invention provides waterborne single-component thermoplastic plastic paint and a production method and construction method thereof. The plastic paint is suitable for the coating of plastic cabinet prepared from ABS (Acrylonitrile Butadiene Styrene), PS (poly styrene), HIPS (High Impact Polystyrene), PC (polycarbonate), PMMA (polymethyl methacrylate) and the like, has good adaptability to the surface of the material and also has good adhesive force, thus the adhesive force problem of the waterborne paint on the plastic substrate can be solved. A waterborne system is adopted for the paint mainly adopts, the production and using processes are safe; and water is used as diluent, and the paint has the advantages of low toxicity, low pollution, extremely low volatile organic compound (VOC) emission and the like and meets various laws and regulations on environmental protection. Meanwhile, the paint can use different color pastes for coloring; and the paint has better decorative propertyon the substrate while the properties can not be affected. Compared with the common solvent thermoplastic acrylic paint, the paint only uses a small amount of low-toxicity alcohol ether type organic solvent, thus the influence on the plastic substrate is extremely small; and the paint film has bright colour, full appearance effect and good performances.

The invention relates to a polymer emulsion for a waterborne metal anticorrosive coating and a preparation method of the polymer emulsion. The polymer emulsion consists of the following raw materials in percentage by mass: 13.0-18.0% of drying oleic acid modified prepolymerized intermediates, 16.0-20.0% of acrylic monomers, 2.0-3.0% of functional monomers containing keto carbonyl groups, 2.5-5.0% of modified acrylic monomers, 1.5-2.5% of reactive emulsifier, 0.2-0.3% of initiator, 0.8-1.0% of compounds containing hydrazine groups, 0.5-1.5% of waterborne drier, 0.5-1.2% of volatile alkali and the balance deionized water. A soap-free emulsion polymerization process is adopted in the invention, the condensation of the keto carbonyl groups and the hydrazine groups and the oxidation polymerization, crosslinking and solidification reaction of double unsaturated bonds are generated in the filming process through introducing the keto carbonyl groups and the double unsaturated bonds on a molecular chain of waterborne polymer emulsion, so that a coating has the functions such as favorable saline water resistance, solvent resistance, rust prevention and the like.

Low VOC emission polyoxymethylene and compositions and products that incorporate the polyoxymethylene are described. The polyoxymethylene is end capped with compound that can prevent degradation of the polymer and subsequent emission of VOC degradation products such as formaldehyde. The end-capped polyoxymethylene can include an inorganic linkage within the polymer backbone that is the reaction product of a terminal hydroxyl group of the polyoxymethylene and a hydrolyzable group of the compound. Also disclosed are products as may be formed from the low VOC emission polyoxymethylene.

The invention relates to the technical field of nonstick coatings, aims to solve the problems that a film breaks, food is scorched and the service life of the coating is greatly shortened due to heat gathering points easily caused by poorer heat distribution of non-stick pans taking a stainless steel pot and an iron pot as substrates and provides a nonstick coating with high heat conductivity and high wear resistance. The film formed by the coating has excellent mechanical strength, higher heat conductivity and also has the characteristics of low VOC emission, environmental protection and absence of toxicity.

The invention discloses infrared-radiation heat-dissipation water-based wear-resistant non-stick paint and a preparation method thereof. The non-stick paint comprises the following components in parts by weight: 20-50 parts of fluorine-containing emulsion, 10-40 parts of bonding resin, 5-20 parts of an infrared radiation material, 5-20 parts of a wear-resistant filler, 5-20 parts of high-temperature-resistant pigment, 1-5 parts of a pH regulator, 0-10 parts of an organic solvent, 1-5 parts of an auxiliary agent and 10-30 parts of water. The non-stick paint provided by the invention is increased greatly in the heat-radiation efficiency of the non-stick paint by adding the heat-dissipation filler with high infrared radiation rate, so that; the heat generated at the bottom is effectively dissipated in the form of infrared radiation, the heat-dissipation performance of the paint is improved and heat is rapidly transferred out.

The invention discloses a low-VOC polypropylene composite material and a preparation method thereof. The low-VOC polypropylene composite material comprises the following raw materials by weight: 45 to 79.5% of polypropylene, 12 to 30% of an inorganic filling material, 3 to 7% of a flexibilizer, 5 to 15% of calcined diatomite, 0.2 to 2% of a stabilizing agent and 0 to 5% of other additives. The invention has the advantages that 1, since the calcined diatomite is used as a VOC adsorbent of the polypropylene composite material, emission of VOCs can be greatly reduced, and the preparation method is simple and can easily realize batch production; and 2, compared with other molecular-sieve synthetic adsorbents, the calcined diatomite is greatly reduced in cost and good in adsorption effect.

The invention relates to organic silicone modified acrylate emulsion and a preparation method thereof. The organic silicone modified acrylate emulsion is synthesized through a hard monomer, a soft monomer, a cross-linking monomer, an organic silicone monomer and a reactive emulsification monomer under the action of an initiator at one time; the preparation method comprises the following steps: dissolving the initiator into deionized water; uniformly mixing the hard monomer, the soft monomer, the cross-linking monomer and the organic silicone monomer in a premixing tank; adding an emulsifier and deionized water into a four-mouth flask to be heated to 70-90 DEG C, slowly dropwise adding the uniformly-mixed monomer mixed phase and 90% of an initiator solution for 1-3 h at the temperature of 70-90 DEG C and the rotating speed of 200-400 r/min, carrying out heat preservation for 1-3 h at the temperature of 70-90 DEG C after dropping, meanwhile, dropwise adding 10% of the residual initiator solution, and adding ammonia water for adjusting the PH to 6-8 after cooling to 50 DEG C or below. The migration of the emulsifier in a latex film is avoided through application of the reactive emulsifier and the defects of hot sticking and cold shortness of the pure acrylic resin are overcome through organic silicone modification.

The invention relates to the technical field of antibacterial mildew inhibitors, and provides a long-acting antibacterial mildew inhibitor, a preparation method thereof, and an application of the long-acting antibacterial mildew inhibitor in a space station environment. The long-acting antibacterial mildew inhibitor takes an organosilicon quaternary ammonium salt as a main sterilization component,can inhibit bacteria, saccharomycetes and fungi for a long time, is high in safety, and has no acute toxicity or accumulated toxicity hidden danger; the antibacterial mildew inhibitor has long-actingantibacterial and mildew-proof performance, and bacteria and mildew do not easily generate drug resistance; no color change hidden danger or toxic component exists, and long-term storage can be achieved; and furthermore, propylene glycol and the like are used as stabilizers, so the VOC release amount can be reduced, and the situation that toxic gas such as methyl alcohol volatilizes in the special environment of the space station and affects the health of astronauts is avoided. The long-acting antibacterial mildew inhibitor can meet the long-acting antibacterial and mildew-proof requirementsof aluminum alloy and textiles in a space station cabin, the VOC release amount of the product is low, and the air quality requirement of the space station is met.

The invention discloses a graphene anticorrosive paint with ultrastrong anticorrosive capability. The graphene anticorrosive paint is formed by mixing a paint A and a paint B; the paint A comprises the following main ingredients in percentage by weight: 10-50% of epoxy resin, 0.5-3% of graphene, 10-20% of fluorophosphate, 30-60% of pigments and fillers, 0.1-3% of auxiliaries, and 8-20% of solvent,and the paint B comprises the following main ingredients in percentage by weight:10-100% of amine curing agent, and 0-90% of solvent; the paint A and the paint B are respectively packaged, and the mixing ratio is prepared according to the construction demand. The graphene anticorrosive paint has ultrastrong anti-neutral salt spray performance, and single paint film can resist neutral salt spray for more than 1500h; the ultrastrong anticorrosive performance can be achieved after being matched with two layers of finish paint for coating, the anticorrosive effect achieved by coating three layersof the traditional anticorrosive paint can be achieved only by coating two layers of paint films; the paint reduces the mating coatings, and the emission of VOC can be decreased; and after being coated on a base material with the steel structure surface treatment grade being Sa2.5, the adhesion force of the paint film is up to 10MPa or above, thus meeting the coating construction requirements ofvarious steel structures.

The invention discloses a waterborne epoxy coating for containers and a preparation method of the waterborne epoxy coating. The waterborne epoxy coating comprises a host and a curing agent according to a mass ratio of 2.3:1. The host comprises deionized water, anti-settling agents, amine adduct, wetting dispersants, first defoamers, pigment, packing, coalescing agents, second defoamers, base wetting agents, flatting agents and thickeners. The curing agent comprises epoxy emulsion, deionized water, second defoamers and in-can preservatives. The preparation method of the waterborne epoxy coating for containers includes steps of (1), preparation of the host; (2), preparation of the curing agent; and (3), blending the host with the curing agent according to the mass ratio of 2.3:1. The coating has low volatile organic content (smaller than 60g/L) and high environment-friendly property, the coating can be dried at a high speed (namely the surface drying time is lower than 20 minutes at the room temperature), and requirements of high production efficiency of a container production line can be met completely.

The invention discloses a preparation method of ultraviolet-curing solder resist ink. The ultraviolet-curing solder resist ink is composed of 30-45 parts of photosensitive resin, 2-8 parts of pentaerythritol acrylate and/or derivative thereof, 1-5 parts of hydroxypropyl methacrylate and/or derivative thereof, 1-5 parts of photosensitizer, 10-20 parts of filler, 1-5 parts of colour paste and 1-5 parts of auxiliaries. After grinding, viscosity of the ink is low, the ultraviolet-curing solder resist ink is applicable to being printed on a single sided board of a printed circuit board plant, and the effects of beautifying appearance and protecting circuits are realized; meanwhile, the ultraviolet-curing solder resist ink has excellent smoothness property, insulativity and high heat resisting property after ultraviolet-curing is carried out.

An emulsion composition comprises water, a hydrocarbon distillate having a boiling point of 215 to 325° C., and a surfactant having a hydrophilic lipophilic balance number of 10 or less. A vehicle composition, an ink composition, a lithographic printing process and a method to improve a lithographic printing process comprise the emulsion composition which when used in a lithographic printing ink can reduce emission of volatile organic compounds and reduce the time at start-up to establish print quality.

The invention relates to the field of high polymer materials, in particular to an epoxy sealing agent for a timber product. The epoxy sealing agent for the timber product comprises a first component and a second component; the first component comprises, by mass percentage, 49-56% of non-ionic water-borne epoxy emulsion, 16-19% of epoxy-acrylic emulsion, 3.2-8.7% of first auxiliary and 16.3-31.8% of water, wherein the mass ratio of the non-ionic water-borne epoxy emulsion to the epoxy-acrylic emulsion is 3:0.8-1.2, and the sum of the mass percentages of the compositions of the first component is 100%; the second component comprises, by mass percentage, 14.8-24.6% of water, 75-85% of water-borne epoxy hardener and 0.2-0.4 % of second auxiliary, wherein the sum of the mass percentages of thecompositions of the second component is 100%. The sealing agent not only has a good sealing effect, but also has a better rib swelling resistance effect; meanwhile, compact paint film is formed, so that the hardness of timber is enhanced in disguised form, and construction attachment of subsequent water paint is not affected; no organic solvent exists, and VOC emission is low, so that the sealingagent is more environmentally friendly. The invention further discloses a preparation method and application of the sealing agent.

The invention belongs to the field of adhesives, and discloses a novel method for preparing crylic acid modified resin for a two-component waterborne polyurethane adhesive. The novel method comprises the following steps: directly selecting polymer resin or synthesizing polymer resin from raw materials, adding a solvent into the polymer resin or synthesizing polymer resin from raw material, thereby modifying by using vinyl or crylic acid and an ester monomer at certain temperature or in the presence of an initiator, and further implementing a reaction on organic amino and acid substances, thereby obtaining the crylic acid modified resin for the two-component waterborne polyurethane adhesive. By adopting the method, crylic acid modified resin can be prepared, and can be directly used or is combined with a component containing isocyanate to obtain a polyurethane adhesive after chain expansion, the isocyanate group in the adhesive can be preferably reacted with active groups of resin in a waterborne environment, and can stably exist in the waterborne environment; in addition, compared with a solvent type polyurethane adhesive, the adhesive is relatively low in VOC content, the defects that an ordinary waterborne polyurethane adhesive can be stripped from a substrate, has bubbles in an adhesive film, is poor in adhesion and has material defects after being used can be avoided, and the cost of the polyurethane adhesive can be lowered.