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

The invention belongs to the field of coatings, and discloses a waterborne epoxy anticorrosive coating containing composite functional modified graphene oxide and a preparation method and application. Graphene oxide is subjected to functional modification by adopting amino acid and titanium dioxide together to obtain composite functional modified graphene oxide, and the composite functional modified graphene oxide is used as a corrosion inhibitor to be compounded with a self-emulsifying waterborne epoxy curing agent, epoxy resin, a silicofluoride coupling agent, a dispersing agent, an accelerant, a defoaming agent and a flatting agent to form the anti-corrosion coating. The anticorrosive paint has excellent acid and alkali resistance, water resistance, salt fog resistance and hydrophobicity after forming a film, and can be applied to the field of metal corrosion prevention.

The invention provides a waterborne epoxy resin dispersion, and aims at solving the technical problems of poor storage stability, low drying speed and poor adhesion generally existing in waterborne epoxy dispersions or emulsions. The waterborne epoxy resin dispersion is prepared from the following materials in parts by weight: 410-855 parts of epoxy resin; 100-310 parts of bisphenol A; 0.1-0.35 parts of a catalyst; 15.4-113.5 parts of polyether amine; 41.7-74.4 parts of a primary amine monomer; 7.6-37.5 parts of a vinyl acid monomer; 9.6-44.3 parts of a neutralizing agent; 127-689 parts of a cosolvent; and 569-2056 parts of deionized water. The particle size of the waterborne epoxy resin dispersion is smaller than 200 nm, the waterborne epoxy resin dispersion can be stored for a long time, and a coating film has excellent adhesive force, good water resistance and salt fog resistance, high drying speed and high hardness. Meanwhile, the preparation method has the advantages of being energy-saving, environmentally friendly, low in cost, easy and convenient in production and preparation and the like.

The invention discloses an ultralow-VOC water-based metal glaze and a preparation method thereof. The ultralow-VOC water-based metal glaze comprises the following components, in percentages by weight:30%-46% of a water-based acrylic resin dispersion, 8%-10% of amino resin, 40%-55% of purified water, 0.2%-0.8% of a wetting levelling agent, 0.5%-0.8% of a dispersing agent, 0.1%-0.4% of an anti-sagging auxiliary agent, 0.1%-0.3% of a defoaming agent, 0.8%-1.5% of an adhesion promoting agent, and 0.2-2% of DMEA; and the preparation method of the ultralow-VOC water-based metal glaze comprises thefollowing steps: putting the water-based acrylic resin dispersion, the DMEA, and the purified water into a container, and performing uniform stirring; adding the amino resin, the wetting levelling agent, the dispersing agent, the defoaming agent, the anti-sagging auxiliary agent and the adhesion promoting agent, performing uniform mixing, performing dispersion at a high speed for 30-60 min, and performing adjustment by using the purified water to a desired viscosity with to obtain glaze slurry; and performing filtration on the glaze slurry, and performing packaging to obtain the ultralow-VOC water-based metal glaze product. The metal glaze provided by the invention solves the problem that a current metal glaze contains a large amount of VOCs.

The invention relates to a low VOC (Volatile Organic Compound) regenerated polyester fiber and a preparation method thereof. The preparation method comprises the following steps: melting and blendingregenerated polyester melt prepared by alcoholysis and polymerization of regenerated polyester raw materials with a masterbatch in which VOCs are removed, and then spinning to obtain the low VOC regenerated polyester fiber. The masterbatch in which the VOCs are removed is prepared from the following components in percentage by mass: 60 to 75 percent of polyester, 10 to 15 percent of aldehyde inhibitor modified activated carbon, 12 to 19 percent of rare earth element doped photocatalyst, 2 to 4 percent of heat stabilizer, 2 to 4 percent of ether-proof agent and 1 to 2 percent of zinc stearate.The final low VOC regenerated polyester fiber in the absence of light has the characteristics that the removal rate of aldehyde VOCs is greater than or equal to 80 percent and the removal rate of benzene VOCs is greater than or equal to 30 percent; under the existence of light, the removal rate of the aldehyde VOCs is greater than or equal to 85 percent and the removal rate of the benzene VOCs isgreater than or equal to 60 percent. The preparation method disclosed by the invention has the advantages of simple production process, low VOC content of a product and great application prospect.

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, comprising: 30-60 parts of fluororesin emulsion, 20-40 parts of PAI emulsion, and 15- parts of anti-corrosion filler 30 parts, 10-20 parts of pigments, 1-5 parts of additives, 1-5 parts of pH adjuster, and 10-30 parts of water. In the present invention, PAI resin is first prepared, and then anionic surfactant and nonionic surfactant are used as emulsifiers to prepare PAI emulsion with good stability by a phase inversion method. A composite resin is formed with PAI emulsion and fluororesin emulsion, and a flaky or scaly anti-corrosion filler is added to the composite resin to obtain a polyamide-imide anti-corrosion non-stick coating. The anti-corrosion filler and the bonding resin can form a dense coating. layer, which can effectively enhance the corrosion resistance of the coating film.

The invention discloses a composite adsorbent used for purifying VOCs in a reagent cabinet and a preparation method thereof, belonging to the technical field of adsorbents. In the present invention, MOFs material A is mixed with mixture B, and a composite adsorbent is obtained after baking, and MOFs material A is Fe(NO 3 ) 3 9H 2 O, Mn(NO 3 ) 2 4H 2 O and ZrCl 4 After mixing, it is dissolved in the mixed solution of hydrochloric acid and DMF, and it is obtained after adding aminophthalic acid for reaction; the mixture B is obtained by mixing activated alumina, activated carbon and kaolin and adding them to the ethanol solution of nitrogen-containing heterocyclic compounds. Through the preparation method of the present invention, the overall porosity, specific surface area and refractory characteristics of the adsorbent are improved, and the adsorption efficiency and adsorption capacity of the composite adsorbent to VOCs are also improved, which can be used for common halogenated hydrocarbons in reagent cabinets, Efficient adsorption and removal of VOCs such as benzene, ethers, ketones, alcohols, etc.

The invention relates to a method for preparing a composite transfer paper. The composite transfer paper is composed of an aluminum-plated transfer layer, a solvent-free adhesive layer and a base paper layer arranged in sequence. The preparation method of the composite transfer paper includes the following steps: Provide a base paper layer, a solvent-free adhesive, and an aluminized transfer film; use a solvent-free compound machine to coat the solvent-free adhesive on the surface of the base paper layer, and combine the aluminized transfer film with the The base paper layer coated with the solvent-free adhesive is compounded to obtain an uncured composite transfer paper, the base paper layer is tipping paper, and the temperature when the solvent-free adhesive is coated is 40°C to 80°C , the coating amount of the solvent-free adhesive is 1.5g / m 2 ~5.5g / m 2 , the composite speed is 100m / min-350m / min; and after the uncured composite transfer paper is cured, the base film on the aluminized transfer film is peeled off to obtain the composite transfer paper. The invention also relates to a composite transfer paper. The present invention further relates to a cigarette package product.

The invention relates to surface coating technology and aims to provide a preparation and coating method of an aqueous ceramic anti-corrosion coating. The method includes: (1) pre-curing the A component, first adjusting the pH value of the aqueous silica sol with a catalyst, then adding deionized water and composite organosilane for mixing, and stirring and reacting to obtain the A component; (2) pre-processing the B component Aging, mixing the components of water-based silica sol, pigments, fillers and auxiliaries and then grinding to obtain component B; (3) Mixing before use, mixing component B and pre-cured component A, by shaking , stirring or rolling to realize compound curing, and obtain water-based ceramic anti-corrosion coating. The water-based ceramic coating of the invention has low VOCs content, and through the control of the amount of alkoxysilane, the VOCs content of the final coating can be less than 100 g / L, and the prepared coating is environmentally friendly and energy-saving, not only has high hardness, good temperature resistance, but also The coating has a certain toughness, the coating film is not easy to crack, the hardness can be increased by 1-2H, and the impact resistance can be increased to 20-30cm·Kg.

The invention relates to a room temperature-curable high temperature-resistant anticorrosion coating. The coating comprises a component A and a component B. The component A comprises, by mass, 30-50 parts of a main film forming substance, 5-10 parts of an auxiliary film forming substance, 5-20 parts of a silicate compound, 5-15 parts of a high temperature-resistant pigment, 5-15 parts of an antirust filler, 5-15 parts of a low melting point blend, 1-5 parts of a high temperature-resistant whisker reinforcement material, 0.5-1.5 parts of a dispersant, 0.5-2 parts of an anti-settling agent, 1-2parts of a silane coupling agent and 10-20 parts of a solvent; and the component B is a titanate catalyst, and accounts for 0.5-3% of the mass of the main film forming substance. The high temperature-resistant coating has the advantages of excellent temperature resistance, good cold and heat exchange resistance, no cracking, and realization of high hardness and high adhesion after a high temperature; and the high temperature-resistant coating also has the advantages of good high temperature resistance, realization of self-curing at room temperature, high crosslink density, good corrosion resistance, simplification of the construction process, saving of the construction energy consumption, and friendliness to the environment.

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.