31results about How to "Improve early water resistance" patented technology

The invention relates to a modified inorganic lithium silicate binder, and in particular relates to a water-based binder containing lithium silicate, silica soil and auxiliaries. More specifically, the modified inorganic lithium silicate binder comprises 10-25 parts of lithium silicate, 60-75 parts of silica soil and 10-15 parts of modified binder and 0.6-3 parts of auxiliaries, wherein the lithium silicate is prepared from 3-10 parts of de-ionized water, 0.5-1.5 parts of lithium hydrate, 5-12 parts of silica soil and 1-2 parts of stabilizer through a reaction; the modified binder is organic fluorine and / or an organic silicon modified acrylic emulsion. The binder provided by the invention is environment-friendly and free of pollution; the content of SiO2 of the modified inorganic lithium silicate binder does not exceed 20%; and the binder is low in viscosity, short in drying time; as a result, the formed dry film is insoluble in water, and excellent in bonding strength, flexibility and impact resistance; the binder is used for preparing an anticorrosion water-based inorganic zinc rich paint, and the combination properties of the paint film are improved; especially, the paint film is excellent in corrosion resistance, high in bonding strength, tough and wear resistant, and also excellent in crazing resistance, oil resistance, organic solvent resistance, weather fastness and high / low temperature resistance; the paint film has the welding performance with paint and has a function of protecting steel structures against corrosion for a long time.

The invention relates to a polyurethane aqueous dispersion containing a hydroxy group as well as a preparation method and application of the polyurethane aqueous dispersion. The polyurethane aqueous dispersion containing the hydroxyl group contains long-carbon-fatty-chain vegetable oil modified polyol, polyether triol and other polyol components. By virtue of reaction between the polyurethane aqueous dispersion and an isocyanate curing agent, quick film formation can be realized, and a formed film has excellent water resistance, chemical resistance, film formation property, glossiness, flexibility and sanding property as well as quick surface drying property.

The invention belongs to the technical field of paint and specifically relates to black waterborne automotive chassis paint and a preparation method thereof. The black waterborne automotive chassis paint is prepared from the following raw materials of 20 to 25% of self-emulsification acrylic modified epoxy ester resin, 20 to 25% of waterborne epoxy ester dispersoid, 0.5 to 1.0% of a waterborne drier, 0.01 to 0.5% of graphene, 1 to 2% of carbon black, 5 to 10% of compound zinc phosphate, 10 to 15% of barium sulfate, 1 to 2% of a corrosion inhibitor, 1 to 2% of an environment-friendly solvent, 0.1 to 0.2% of a neutralizing agent, 0.2 to 0.5% of a defoaming agent, 0.4 to 0.6% of a leveling agent, 0.3 to 0.5% of a base material wetting agent, 15 to 39.5% of deionized water and 0.5 to 1.0% of athickening agent. The black waterborne automotive chassis paint disclosed by the invention has very low smell; meanwhile, the product has the advantages of good dryness, good early water resistance and excellent salt spray resistance property.

The invention discloses a water-based polyurethane anti-corrosion coating for containers and a preparation method thereof. The raw material formula is composed of the following components in terms of weight percentage: 5-14% of tap water, 20-50% of water-based polyurethane dispersion, and 10% of acrylic emulsion -20%, anti-rust pigment 5-10%, body filler 10-25%, coloring pigment 0-15%, anti-settling agent 0.3-1.0%, film-forming aid 2-6%, thickener 0.3-1.0% , defoaming agent 0.1-0.4%, salt-spray resistant hydrophobic agent 0.5-1.0%, anti-corrosion and anti-mold agent 0.1-0.3%, pH regulator 0.1-0.4%, wetting and dispersing agent 0.5-1.0%, antifreeze agent 0.5-2 %, leveling agent or substrate wetting agent 0.1-0.4%; the product of the present invention does not contain harmful substances such as organic solvents and heavy metals, and has excellent environmental protection, simple and convenient construction, safe and stable storage, and excellent performance.

The invention belongs to the technical field of paint, and particularly relates to a water-based crane protection primer and a preparation method thereof. The water-based crane protection primer is prepared from the following raw materials: water-based alkyd resin, water-based epoxy resin, water-based driers, graphene, pigments, composite zinc phosphate, barium sulfate, environmental-friendly solvents, neutralizers, anti-foaming agents, leveling agents, substrate wetting agents, deionized water and thickening agents. The water-based crane protection primer has the advantages of good water resistance and anti-corrosion performance.

The invention relates to a water-based engineering machinery decoration finishing coat and a preparation method thereof, belongs to the technical field of coatings, and concretely relates to a water-based crane decoration finishing coat and a preparation method thereof. The finishing coat comprises, by weight, 40-60% of waterborne alkyd resin, 0.3-1.0% of an aqueous drier, 1-5% of titanium dioxide, 10-20% of molybdate red, 6-15% of barium sulfate, 1-2% of an environmentally friendly solvent, 0.1-0.2% of a neutralizer, 0.2-0.5% of a defoamer, 0.4-0.6% of a leveling agent, 0.3-0.5% of a substrate wetting agent, 20-40% of deionized water and 0.5-1.0% of a thickener. The finishing coat has a VOC content of 100 g / L or less, and has a very low smell and a good environmental protection performance; and the finishing coat can be fast hard on a paint film, and the hardness of the finishing coat after 1 h surface drying can reach HB.

The invention provides a high-toughness insulating epoxy resin cured product as well as a preparation method and application thereof. The high-toughness insulating epoxy resin cured product comprisesthe following raw materials: matrix resin, a curing agent, a toughening agent and an accelerant, the matrix resin is a mixture of an epoxy resin and an inactive resin modifier containing a hydrophobicaliphatic chain and an aromatic ring, the toughening agent is a mixture of an active diluent and nanoparticles, andhydrogen bonds can be formed between the active diluent and the nanoparticles. Thelong hydrophobic aliphatic side chain and the aromatic ring in the inactive resin modifier can endow the product with extremely low viscosity, so that the viscosity of the epoxy resin is reduced, the compatibility between the epoxy resin and other components is improved, the flexibility is improved, excellent early water resistance, hardness performance and corrosion protection are provided, and excellent insulation and heat resistance are provided; the reactive diluent can react with the nanoparticles to form a damping branched chain and toughening suspension chain structure with the nanoparticles, so that the intermolecular distance of an epoxy resin system can be increased, and better toughness is provided.

The invention discloses a waterproof coating for metal roofs and a preparation method thereof. The main technical point of the technical solution is a waterproof coating for metal roofs, which includes A component and B component; the A component includes the following raw materials in parts by weight: water 150 -155 parts, dispersant 6-8 parts, defoamer 1-3 parts, wetting agent 1-2 parts, titanium dioxide 45-55 parts, zinc oxide 8-12 parts, heavy calcium carbonate 400-420 parts, 8-12 parts of ethylene glycol, 0.7-0.9 parts of hydroxyethyl cellulose and 0.8-1.2 parts of 2-amino-2-methyl-1-propanol; the B component includes the following components by weight: polymerization 340-360 parts of emulsion, 1-3 parts of bactericide, 5-7 parts of film-forming aids, 1-3 parts of defoamer and 5-7 parts of thickener. The waterproof coating of the present invention has the advantages of high adhesion to substrates, good low temperature flexibility, and good anti-cracking performance under the condition of rapid temperature change.

A low-gloss water-based epoxy ester coating for steel structures and a preparation method thereof, the coating is prepared from vinyl modified epoxy ester resin, pigments and fillers, auxiliary agents, cosolvents and deionized water; the vinyl The modified epoxy ester resin is prepared by the following method: first use bisphenol A type epoxy resin, dry oil fatty acid and catalyst for esterification, and then dilute it with glycidyl tertiary carbonic acid ester and ethylene glycol butyl ether. Prepolymer A: Esterification with alkenylphenol polyglycidyl ether, dry oil fatty acid, branched chain saturated fatty acid and catalyst, and then dilute with polyalkylene substituted single epoxy active diluent and ethylene glycol butyl ether Obtain prepolymer B; then carry out graft modification to prepolymer A and prepolymer B with terpene resin, liquid polybutadiene, vinyl monomer, initiator, obtain vinyl modified epoxy ester resin. The original coating paint of the invention has good storage stability, low gloss of the coating film, and safe and environment-friendly process materials.

The invention belongs to the technical field of aqueous coating materials, and provides a copolymer P, an aqueous dispersion resin containing the copolymer P, and applications of the aqueous dispersion resin in aqueous coating materials. The copolymer P is prepared by carrying out a reaction on the following components by weight: 3-30 wt% of a hydroxyl-free hydrophobic polymer I, 30-80 wt% of a hydroxyl functional hydrophobic polymer II, and 10-40 wt% of a carboxyl functional hydrophilic polymer III, wherein a monomer Ia and an initiator are subjected to a polymerization reaction to obtain thehydroxyl-free hydrophobic polymer I, and the monomer Ia is one or a variety of materials selected from a vinyl compound, a vinyl ester and (methyl) acrylate. According to the present invention, withthe application of the obtained aqueous dispersion resin in the coating material, the early-stage water resistance of the prepared paint film can be significantly improved.

The invention discloses a fluorocarbon-modified water-based alkyd resin coating and its preparation method and application, belonging to the technical field of alkyd resin. The fluorocarbon-modified water-based alkyd resin coating comprises 10 parts by weight of FEVE fluorocarbon resin ~25 parts, 25~35 parts of linseed oil, 10~15 parts of trimethylolpropane, 5~10 parts of pentaerythritol, 15~20 parts of phthalic anhydride, 10~12 parts of benzoic acid, 2~5 parts of adipic acid, polyether 2-5 parts of PPG1000, 5 parts of xylene, 0.02 part of lithium hydroxide, appropriate amount of triethylamine, 10-12 parts of propylene glycol methyl ether; the invention also discloses the preparation method and application of fluorocarbon modified water-based alkyd resin coating, The fluorocarbon modified water-based alkyd resin coating prepared by the present invention has excellent early water resistance, and the early water resistance exceeds more than 7 days; it has excellent late water resistance, generally exceeding 10 days; it has excellent salt spray resistance, exceeding 13 days.

The invention provides a water-dispersible polyisocyanate polymer modified by silane polycondensate and its preparation method and application. The polymer has the following chemical formula: wherein, each R is independently selected from any hydrolyzable group; chemical formula Wherein n is an integer ≥ 1; a is an integer selected from 1, 2, 3, 4 and 5; R 1 , R 2 is any group that does not participate in the reaction. The invention creatively utilizes the outstanding advantages of silane polycondensate in terms of drying speed and water resistance to modify isocyanate compounds through chemical grafting, and the water-based paint prepared by using the curing agent of the invention has outstanding early water resistance.

The invention relates to an industrial coating, in particular to an anti-doodling coating for an outdoor facility and a preparation method of the anti-doodling coating. The anti-doodling coating mainly aims at solving the technical problems that a doodling coating in the prior art contains a bonding agent, has higher attaching power on a general surface, and is relatively difficult to remove by using a physical or chemical method after setting in case of vicious doodling, and the surface is prone to being damaged. The anti-doodling coating disclosed by the invention is an oxidative dry type single-component waterborne coating, and comprises the following components by part by mass: 30-65 parts of fluorinated polyacrylate-modified soybean oil polyurethane resin, 1-10 parts of additive, 15-30 parts of pigment and filler and 10-25 parts of water.

The invention relates to a polyurethane aqueous dispersion containing a hydroxy group as well as a preparation method and application of the polyurethane aqueous dispersion. The polyurethane aqueous dispersion containing the hydroxyl group contains long-carbon-fatty-chain vegetable oil modified polyol, polyether triol and other polyol components. By virtue of reaction between the polyurethane aqueous dispersion and an isocyanate curing agent, quick film formation can be realized, and a formed film has excellent water resistance, chemical resistance, film formation property, glossiness, flexibility and sanding property as well as quick surface drying property.

The invention belongs to the technical field of paint and specifically relates to black waterborne automotive chassis paint and a preparation method thereof. The black waterborne automotive chassis paint is prepared from the following raw materials of 20 to 25% of self-emulsification acrylic modified epoxy ester resin, 20 to 25% of waterborne epoxy ester dispersoid, 0.5 to 1.0% of a waterborne drier, 0.01 to 0.5% of graphene, 1 to 2% of carbon black, 5 to 10% of compound zinc phosphate, 10 to 15% of barium sulfate, 1 to 2% of a corrosion inhibitor, 1 to 2% of an environment-friendly solvent, 0.1 to 0.2% of a neutralizing agent, 0.2 to 0.5% of a defoaming agent, 0.4 to 0.6% of a leveling agent, 0.3 to 0.5% of a base material wetting agent, 15 to 39.5% of deionized water and 0.5 to 1.0% of athickening agent. The black waterborne automotive chassis paint disclosed by the invention has very low smell; meanwhile, the product has the advantages of good dryness, good early water resistance and excellent salt spray resistance property.

The invention belongs to the technical field of building-use waterproof materials and particularly relates to a quick-drying and quick-hardening polymer cement waterproof slurry material and a preparation method thereof. The quick-drying and quick-hardening polymer cement waterproof slurry material includes a liquid material and a powdery material according to a weight ratio of 1:3-4. The liquid material is prepared from following raw materials, by weight: 35-50 parts of a polymer emulsion and 0.05-0.2 parts of a defoaming agent. The powdery material is prepared from following raw materials, by weight: 30-60 parts of sulphate aluminium cement in 42.5 grades, 35-60 parts of quartz sand in 70-200 meshes and 0-10 parts of heavy calcium carbonate in 320 meshes. The slurry material is quick in hardening, is strong in early strength, is good in early water resistant performance, allows an impoundment test to be performed in advance for reducing construction period, is high in adhesive strength with a base material, is green and environmental-protective, and can be used for waterproofing and leakage resistance on various base materials and wall bodies.