50results about How to "Excellent film hardness" patented technology

The invention relates to a composition for protecting metal surfaces, in particular to a preparation method of an environmentally friendly anticorrosive fingerprint resistant paint for metal surfaces. The composition contains an A component and a B component, the A component takes waterborne epoxy resin as a matrix resin and nano-silica, a silane coupling agent, microcrystalline wax disperse liquid, zirconium complex, deionized water, defoamer and a levelling agent are added, thus obtaining the A component; the B component contains a waterborne epoxy modified amine curing agent and a certain quantity of epoxy curing promoter. The two components are mixed and stirred evenly at a ratio of 4:1 to 3:1 to form the environmentally friendly anticorrosive fingerprint resistant paint for metal surfaces. After coating, metal can be heated by going through a baking channel at a certain temperature, the film forming time can be controlled by adjusting the heating period and finally a transparent coating layer which has quite good anticorrosive protection function over metal and fingerprint resistant function is formed.

A process for producing a room temperature vulcanizable organopolysiloxane composition comprising:

(A) 100 parts by weight of a diorganopolysiloxane having in one molecule at least two hydroxyl groups and/or hydrolyzable groups connecting to silicon atoms;

(B) 0.2 to 10 parts by weight of an alkylene oxide compound having silicon atoms in a molecule;

(C) 0.5 to 100 parts by weight of a silica; and

(D) 0.5 to 30 parts by weight of a silane and/or condensate of partial hydrolyzate thereof,

wherein said process comprises steps of hot-mixing component (A), component (B), and component (C) together, and subsequently mixing component (D) thereto.

The invention discloses poly urethane (PU) polyurethane paint capable of being forcedly dried and used for woodware big table-board coating and contains components by weight: 60-80 parts of alkyd resin, 5-20 parts of fillers, 15-25 parts of solvent, 0.1-0.3 part of defoaming agent, 0.1-0.3 part of flatting agent, 0.5-1 part of anti-settling agent, 35-45 parts of toluene diisocynate (TDI) affixture, 45-55 parts of TDI trimer and 5-10 parts of polyurethane -level solvent. The PU polyurethane paint capable of being forcedly dried can be forcedly dried at the temperature of 50 DEG C without having prickly heat and hidden bubbles easily, and greatly improves coating efficiency and effect of the PU polyurethane paint.

The invention relates to organic silicon acrylic anticorrosive paint. The organic silicon acrylic anticorrosive paint comprises the following components in parts by weight: 29-60 parts of organic silicon acrylic emulsion, 5-21 parts of amino resin, 2-15 parts of talcum powder, 5-26 parts of anticorrosive paint, 10-31 parts of deionized water and 0.5-1.6 parts of pH-value regulator. In the invention, the organic silicon acrylic anticorrosive paint has better corrosion resistance; and moreover, the coating hardness, the water resistance, the light resistance and the adhesion force of the prepared paint are obviously improved.

The invention specifically relates to water-based lotus-leaf-structured hydrophobic over-printing varnish for wallpaper and a preparation method of the over-printing varnish, and belongs to the technical field of ink. The technical problem to be solved is to provide an over-printing varnish by using which the surface of a wallpaper product can be smooth, bright and wear-proof and the lotus leaf type waterproof and moisture-roof effects can be realized, and a preparation method of the over-printing varnish. In order to solving the technical problem, the technical scheme adopted is as follows: the water-based lotus-leaf-structured hydrophobic over-printing varnish for the wallpaper is prepared from raw materials including a modified organic silicon polymer emulsion, a non-film-forming acrylate emulsion, an styrene-acrylic emulsion, neutralizing amine, propylene glycol, a water-based coalescing agent, a water-based leveling wetting agent, a mineral defoamer, a water-based nanoscale organosilicon waterproofing agent, a waterborne polyurethane thickening agent, deionized water and an organic silicon defoamer; the raw materials are stirred and mixed in a specific order to form the over-printing varnish.

The invention provides a waterborne polyurethane emulsion with flexural endurance and a preparation method thereof. The emulsion comprises water and resin. The resin contains the following reaction components: aliphatic diisocyanate, aromatic diisocyanate, polyester polyol, polyether polyol, a hydrophilic chain-extender, a short-chain chain extender and a post chain extender. The preparation method comprises the following steps: letting polyether polyol react with aromatic diisocyanate to obtain a component A; letting the component A react with aliphatic diisocyanate and polyester polyol to obtain a component B; adding the hydrophilic chain-extender into the component B and reacting, adding the short-chain chain extender and reacting, cooling to 50 DEG C below, adjusting pH value and viscosity, adding water, and carrying out an emulsion reaction to obtain the waterborne polyurethane emulsion with flexural endurance. By preferentially carrying out a reaction between polyether polyol and aromatic diisocyanate, adverse effects of system hyperviscosity and solidification due to high crystallinity of aromatic diisocyanate are avoided.

Provided is a non-cyanogen based gold electroplating bath which suppresses the diffusion of the opening part of a mask material upon plating, and can form a bump and wiring with dimensions practically equal to the designed dimensions. The non-cyanogen based gold electroplating bath for forming a bump comprises: the alkali salt of gold sulfite or ammonium gold sulfite as a gold source; water soluble amine as a stabilizer; a crystal regulator; a sulfite and a sulphate as conducting salts; a buffer; polyalkylene glycol and/or an amphoteric surfactant. The amount of the polyalkylene glycol to be blended is preferably 0.1 mg to 10 g/L. The amount of the amphoteric surfactant to be blended is preferably 0.1 mg to 1 g/L. As the amphoteric surfactant, carboxybetaines can be preferably used.

A binder composition for polyester type films showing superior transparency, film hardness and solvent resistance as well as superior adhesion to polyester type films and an optical film using the composition are provided. The binder composition for polyester type films of the present invention contains a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d). The optical film of the present invention is an optical film including a polyester type film and a functional layer provided on the polyester type film, the functional layer containing a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d).

Polyester-based aqueous coating compositions comprising a mixture of a carboxyl-functional polyester resin (A), a water-insoluble epoxy resin (B), and a hydrophobic solvent (C), the mixture being neutralized with neutralizer (D) and dispersed or dissolved in water. The compositions have excellent film forming and processing characteristics, and are particularly useful in coating the interior surface of cans and as automobile coatings.

The invention discloses environmentally-friendly white flat lacquer for furniture and a preparation method thereof. The environmentally-friendly white flat lacquer comprises, by weight, 40-60% of a fluorocarbon-modified acrylic acid emulsion, 10-20% of a polyurethane emulsion, 15-20% of titanium dioxide, 4-9% of a film forming assistant and 4-16% of water. The environmentally-friendly white flat lacquer improves the traditional formula, improves hardness of a film of the existing aqueous furniture paint, improves after-tackiness resistance, greatly shorts drying time, is nontoxic and environmentally friendly, can be directly constructed, is beautiful, reduces labor intensity of a worker, does not influence health of the worker, has advantages of the furniture paint, utilizes water as a main solvent, avoids non-renewable resource wasting and belongs to an energy-saving environmentally-friendly product.

The invention discloses an anti-color-infiltration red oak two-component aqueous woodware coating structure, which sequentially comprises a two-component aqueous woodware sealing primer coating, a two-component aqueous woodware burnishing primer coating and a two-component aqueous woodware topcoat coating on a red oak substrate surface, wherein the two-component aqueous woodware sealing primer, the two-component aqueous woodware burnishing primer and the two-component aqueous woodware topcoat respectively comprise a main agent, a curing agent and water. According to the present invention, eachlayer of the structure comprises the two components of the acrylic acid dispersion containing the OH functional group and the aqueous curing agent containing the NCO functional group, wherein the densely-cross-linked structure of the two-component system can barrier and block the pigment tannic acid of the red oak substrate, such that the problem that the infiltration of the tannic acid in red oak can cause the discoloration of the paint coating film can be solved; and the sealing primer coating and the burnishing primer coating have characteristics of strong adhesion and easy burnishing, andthe topcoat coating has characteristics of good smoothness, good flatness, scratch resistance, good paint film hardness and excellent stain resistance.

The invention discloses a high-heat-conductivity heat-radiating nano composite coating which comprises, by weight, 50-60 parts of nano alumina sol, 30-40 parts of high-density polyethylene, 1-3 parts of carbon nano tube, 5-10 parts of titanium phosphate, 10-15 parts of composite filler, 2-3 parts of polyvinylpyrrolidone, 5-9 parts of methyl methacrylate, 2-5 parts of ethyl acetate, 10-15 parts of isopropanol, 5-8 parts of acrylate emulsion, 3-5 parts of nano copper powder and 1-3 parts of triethanolamine. Through reasonable formulation designing, the composite coating has excellent adhesiveness and coating hardness, is efficient in heat radiating after being coated on the surface of an electronic device and is conducive to guiding out heat generated by the electronic device timely and efficiently, so that heat radiating rate is increased, cooling effect is improved, and the composite coating has excellent comprehensive performance and wide market prospect.

The invention discloses a surface anti-dirty treatment composition containing tetrafluoroethylene derived hydrofluorother. The surface anti-dirty treatment composition is prepared from, by mass, 0.01-19.99 parts of comb typperfluorinated polyether, 0.01-19.99 parts of trimethoxysilane-terminated perfluorinated polyether, 0-5 parts of other siloxane or perfluorinated polyether, 80-99.9 parts of tetrafluoroethylene derived hydrofluorother, wherein the total mass fraction of the comb typperfluorinated polyether, the trimethoxysilane-terminated perfluorinated polyether, other siloxane or perfluorinated polyether and the tetrafluoroethylene derived hydrofluorother is 0.1-20 parts. The surface anti-dirty treatment composition is excellent in anti-dirty performance and good in durability, the adopted tetrafluoroethylene derived hydrofluorother replacing a solvent is safe, environment-friendly and excellent in dissolving property, and the cost is reduced greatly.

The present invention provides the following invention: a coating composition containing a hydroxyl-group-containing resin (a), barium sulfate (b) having an average particle size of 0.01-2.0 [mu]m, acolor pigment (c), a polyisocyanate compound (d) having a viscosity at 25 degrees centigrade of 150-800 mPa.s, and a silane coupling agent (e), wherein the water-based coating composition contains 1-50 parts by mass of barium sulfate (b), 1-100 parts by mass of color pigment (c), 10-150 parts by mass of polyisocyanate compound (d), and 0.1-10 parts by mass of silane coupling agent (e) with respectto 100 parts by mass of the total solids content of the hydroxyl-group-containing resin (a).

Disclosed are a particle of a 13-iron oxyhydroxide-based compound represented by Formula (1), in which an average equivalent circle diameter of primary particles is 5 nm to 30 nm, and a coefficient of variation of equivalent circle diameters of the primary particles is 10% to 30% [In Formula (1), A represents at least one kind of metal element other than Fe, and a represents a number that satisfies a relationship of 0≤a<1.], and applications thereof.

β-A_aFe_1-aOOH   (1)

The invention discloses electric vehicle light snoot coating primer which is prepared from the following raw materials in parts by weight: 10-50 parts of modified alkyd resin, 20-50 parts of modifiedphenolic resin, 20-40 parts of solvent, 0.8-3 parts of a dryer, 0.005-0.015 part of organic silicone oil and 0.1-0.3 part of an anti-skinning agent. The electric vehicle light snoot coating primer provided by the invention has the advantages of stable performance, no pollution, reasonable formula and good performance. The formula is selected while taking full account of factors such as leveling property and adhesion; two kinds of film forming resin, the modified alkyd resin and the modified phenolic resin, are adopted and compounded; the prepared primer has excellent leveling property and heatresistance as well as high drying speed, prevents the generation of shrinkage cavity and ripples and can ensure high gloss and refractive index of a metal coating. Through a synergistic effect of various kinds of components in the formula, a film has excellent adhesion to ABS base material and good film forming hardness while the phenomena of gloss loss and wrinkling of the coating are avoided.

The invention discloses a high-wearability hollow rail aluminum alloy plate which comprises an aluminum alloy plate matrix and a high-wearability polyurethane primer coating the surface of the aluminum alloy plate matrix. The high-wearability polyurethane primer comprises the following raw materials in part by weight: 30-40 parts of acrylic polyurethane, 15-25 parts of modified cyanate resin, 1.3-1.5 parts of talcum powder, 0.5-1 part of superfine barium sulfate, 0.6-0.9 part of a de-foaming agent, 0.5-0.8 part of a leveling agent and 0.3-0.6 part of a film forming agent. The high-wearabilityhollow rail aluminum alloy plate disclosed by the invention has excellent wearability and simultaneously has good film-forming property and processing property.

The invention discloses waterborne polyurethane resin and a preparation method and application thereof. The waterborne polyurethane resin is obtained through a reaction of a polyol prepolymer, a hydrophilic monomer, an isocyanate monomer, a functional monomer, a chain extender and organic alkali, and the hydrophilic monomer is at least one of a dihydroxy compound, polyethylene glycol and quaternary ammonium salt; wherein the functional monomer is at least one of trimethylolpropane, pentaerythritol, monoglyceride and unsaturated fatty acid. The automobile water-based floating coat prepared fromthe water-based polyurethane resin has excellent stone beating resistance and paint film hardness, and meanwhile, the prepared automobile water-based colored paint has excellent adhesive force and flexibility, is high in comprehensive performance and can meet the requirements of a higher coating process in the field of automobiles.

The invention provides a building waterproof paint, which is prepared from the following raw materials by weight: 30-40 weight parts of quartz powder, 2-8 weight parts of modified hydroxypropyl methylcellulose, 5-10 weight parts of bentonite, 25-40 weight parts of polyvinyl alcohol glue, 8-15 weight parts of putty powder, 5-15 weight parts of precipitated calcium carbonate, 6-12 weight parts of aquick drying agent, 5-10 weight parts of 2-hydroxypropyl cellulose, 12-18 weight parts of dicumyl peroxide and 20-40 weight parts of water. The building waterproof paint provided by the invention hasthe characteristics of good waterproofness, strong adhesion, aging resistance, acid resistance, corrosion resistance, wear resistance and good film hardness, and is an ideal waterproof paint.

The invention discloses an epoxy silane coupling agent-organic fluorine composite modification styrene-acrylic emulsion and a preparation method thereof. Methyl methacrylate, styrene, n-butyl acrylate, methacrylic acid, dodecafluoroheptyl methacrylate, 3-glycidyl ether oxy-propyl trimethoxy silane, octaphenyl polyoxyethyiene, sodium dodecyl benzene sulfonate, ammonium persulfate and distilled water are used as main raw materials; through an emulsion polymerization mode, the epoxy silane coupling agent-organic fluorine composite modification styrene-acrylic emulsion is prepared. Compared with the conventional styrene-acrylic emulsion, the prepared modified styrene-acrylic emulsion has the advantages of more excellent properties such as film coating intensity, film coating adhesion power, film coating water absorption rate, film coating anti-corrosion performance and emulsion conversion rate. The film coating pencil hardness is 4H or higher; the adhesion power reaches grade 1 or higher;the water absorption rate is 8 percent or higher; the emulsion conversion rate is 99 percent or higher; great application prospects are realized.