30results about How to "Easy to recoat" patented technology

The invention discloses an environmental-friendly diatom ooze inner wall latex paint which is prepared from the following components by weight percent: 12-18% of benzene acrylic emulsion, 10-15% of kieselguhr, 3-6% of titanium dioxide, 0.1-0.5% of a dispersing agent, 0.1-0.5% of a wetting agent, 0.5-1% of a thickening agent, 25-38% of packing, 0.2-0.4% of a defoaming agent, 1-1.5% of ethanol, 0.5-1% of a surfactant, 0.3-0.6% of an anti-molding agent and 25-40% of water, wherein the total percentage of the component is 100%. The invention further discloses a preparation method of the latex paint. Due to the addition of the kieselguhr and controlling the addition amounts of additives of the latex paint, the scrubbing resistance and the air permeability of the latex paint can be in optimal balance, the source of VOC (Volatile Organic Compounds) in the latex paint is reduced, and a prepared coating is safe and environmentally friendly, stable in property, soft and uniform in coating quality and good in adhesive property with a base material.

The invention provides a waterborne epoxy resin cabin coating. The coating comprises a component A and a component B in a weight ratio of (8-5): 1. The component A comprises the following components in percentage by mass: 30%-50% of an epoxy resin emulsion, 7%-15% of an antirust pigment, 20%-50% of a pigment filler, 1%-2% of a coalescing agent, 5%-8% of other auxiliaries and 5%-30% of water. The component B is a water-based epoxy amine curing agent with a solid content of 45-55% and with a solvent being water. According to the waterborne epoxy resin cabin coating, the VOC content of a cured paint film meets the environmental protection standard that the VOC content is smaller than or equal to 80 g/L, the adhesive force between the paint film and a substrate is larger than or equal to 5 MPa, the water contact angle of the paint film reaches 100 degrees or above and is kept stable, and recoating is easy; and the waterborne epoxy resin cabin coating has excellent salt spray resistance andcorrosion resistance.

The invention discloses a method for removing ceramic layers of a thermal barrier coating. The method includes the steps that (1) a turbine working blade is clamped on a tool fixture; (2) a nozzle is mounted in a spray gun; (3) under the condition of soft limiting control, the spray gun with the nozzle is slowly moved to the current surface, where one ceramic layer is to be removed, of the turbine working blade, and the target distance is kept; (4) an eddy current pulse water jet switch is turned on, and the nozzle is made to reciprocate line by line in the axial direction of the turbine working blade; (5) after the ceramic layer on the current surface of the turbine working blade is completely removed, the blade is rotated by 180 degrees through a rotating shaft on the tool fixture; and (6) the step (3) and the step (4) are conducted to remove the ceramic layer on the other face. When the method is used for removing the ceramic layers, the ceramic layers are continuously stripped off layer by layer, a metal bottom layer is not damaged, the metal bottom layer does not need to be coated supplementarily, the procedures are simple, and re-coating of the ceramic layers is facilitated; and compared with a traditional mechanical sand blasting method, process parameters are accurately controlled in the method, and product quality consistency is high.

The invention discloses a metal template coating which is composed of, by weight, 70-90% of main resin, 3-10% of diluent, 3-10% of pigment and filler, 1-5% of auxiliary and 1-5% of photosensitive agent. The main resin is selected from one or multiple of aliphatic polyurethane acrylate, acrylate or aromatic methyl semi-acrylate, the diluent is selected from one or multiple of isobornyl acrylate, 1,6-hexanediol diacrylate or tripropylene glycol diacrylate, the pigment and filler comprises 20-30% of zinc stearate, 20-30% of bentonite, 20-30% of calcium carbonate and 20-30% of talcum powder, theauxiliary is selected from one or multiple of polysiloxane, unsaturated polyamide and hydroxyl acid salt or propylene glycol methyl ether, and the photosensitive agent is selected from one or multipleof 1-hydroxy cyclohexylphenyl ketone, 2-isopropyl thioxanthone or 2-benzyl-dimethyl amino-1-(4-morpholine phenyl) butanone.The preparation method does not need a curing agent, and momentary drying within 10s can be realized through ultraviolet curing. The metal template coating is powerful in bonding with an aluminum alloy template and less prone to shedding.

The invention discloses a preparing method of solvent-typed organic silicon water-proof liquid, which comprises the following steps: blending active organic silicane, active organic silicon oil and active organic silicon resin to stir evenly; aerating N2 for 20-40min; adding organic solvent under N2 to mix 20-40min; adding catalyst; forming pre-mixture; stirring the premixture for 0.5-1h to age; packing protected by nitrogen to obtain the product.

The invention relates to the field of ink, specifically to a special UV transfer printing adhesive for transfer printing of nanometer fine lines on 3.5D high-tensile PC + PMMA composite boards and screen printing color ink of the 3.5D high-tensile PC + PMMA composite boards and an application of the special UV transfer printing adhesive. The objective of the invention is to provide a high-tensileUV transfer printing adhesive used for 3.5D and an application thereof. The high-tensile UV transfer printing adhesive is a UV light-cured transfer printing adhesive which is UV light-cured, easy to recoat, excellent in toughness, high in tensile strength and good in resistance, and aims to solve the problem that a conventional UV transfer printing adhesive is incapable of being used for the high-tensile requirement of post-processing of 3.5D due to low tensile strength. The UV transfer printing adhesive provided by the invention has a viscosity of 300-600 CPS at a room temperature of 25 DEG C, is high in adhesive force and excellent in flexibility, can realize transfer printing of various nanometer fine lines according to the requirements of customers, and gives people beautiful texture and rich visual effects.

The invention discloses a preparation method of low-temperature curing type waterborne amino acrylic resin. The preparation method comprises the following steps of performing esterification reaction on melamine formaldehyde resin and acrylic acid to obtain an amino acrylic ester macromonomer; mixing the amino acrylic ester macromonomer into an acrylic monomer emulsion, and polymerizing to obtain a polyamino acrylic ester emulsion; mixing the polyamino acrylic ester emulsion and water-soluble blocked isocyanate, so as to prepare the low-temperature curing type waterborne amino acrylic resin. The preparation method has the advantages that the melamine formaldehyde resin is mixed into the acrylic acid to prepare the amino acrylic ester, and multiple types of acrylic ester are mixed into the amino acrylic ester, so that the properties of the emulsion and a rubber film are improved, the anti-scratching and anti-corrosive properties of a coating film are improved, and the service life of the coating film is prolonged; after the isocyanate which is blocked by sodium bisulfite is used, the self disadvantages are overcome by the advantages of the isocyanate and the acrylic ester, and the coating film has the water-proof, anti-aging and anti-corrosive properties of the amino acrylic ester, and also has the property of low curing temperature of the isocyanate.

The invention relates to a high-shielding UV treatment agent and a treatment process thereof. The high-shielding UV treatment agent is prepared from special modified acrylic ester, urethane acrylate,polyester acrylate, modified silicon dioxide, TMP3EOTA, HDDA, Ciba184, TPO, BASF819, leveling agents, butyl cellosolve, methylbenzene, isopropanol, ethyl acetate, butyl acetate and organic silicon leveling agents. A product obtained by using the formula and being treated by the treatment process has the advantages of high shielding performance, high wear performance, easy re-coating, high surfacedrying speed, high curing speed, fast film forming and the like; the problems of bottom hinging, color seepage and poor combination power do not occur after the re-coating; the treated coating surfacehas high smoothness, high luster degree, good smoothness and high qualified product rate, and solves the problems of nonuniform roughness degree, poor shielding performance, poor re-coating effect, construction inconvenience, low qualification product rate and the like of the surface coating of a product treated by the existing conventional UV treatment agent.

The invention provides a polysiloxane heat-reflective topcoat and a preparation method thereof. The polysiloxane heat-reflective topcoat comprises a component A and a component B, and the weight ratio of the component A to the component B is 8:(1-1.5); the component A comprises the following ingredients by weight: 30-40 parts of polysiloxane resin, 3-8 parts of a thermal insulation material, 0.6-0.9 part of a stabilizer, 25-48 parts of a mixed solvent, 0.2-0.5 part of a dispersant, 17-33 parts of an anti-aging pigment and an anti-aging filler, and 0.2-0.5 part of an anti-settling agent; the component B comprises the following ingredients by weight: 60-70 parts of a curing agent and 18-35 parts of a curing agent solvent. The polysiloxane heat-reflective topcoat is high in ageing-resistant performance, weather resistance and chemical resistance, has a heat reflection function, can be suitable for various construction methods, and is good in recoatability and excellent in cost performance; besides, external corrosion protection of the surface of coated steel is achieved, a lot of coating expenditures can be reduced, and the service life is prolonged.

The invention provides a rapid high-oil-absorbing painting canvas prepared through the steps of: (1) dissolving gum in deionized water, the gum being transparent acrylic glue or animal glue; (2) adding TiO2, polyhexadecyl methacrylate, polycarboxylic acid and salt thereof, and ammonium bicarbonate to the glue, and uniformly mixing the components, wherein the mass ratio of the TiO2, polyhexadecyl methacrylate, polycarboxylic acid and salt thereof, and water is 0-0.1:0.5-0.7:0.2-0.3:1; (3) uniformly brushing a linen fabric with the mixed glue solution, after the present layer is dried, brushingthe linen fabric with the next layer, until the glue layer is 6-10 mm in thickness, and finally brushing the fabric with a layer of glycerol; (4) drying the fabric at high temperature. The preparationmethod is simple and convenient. The painting canvas has great oil absorbency and is free of seepage of oil, and is free of oil seepage in later period by brushing the painting canvas with a layer ofglycerol after painting for several times.

The invention relates to a supplementary coating device for a metal tank welding lug. The device comprises an elastic bottle body, a connecting piece and a cover, wherein the connecting piece is arranged on the upper part of the elastic bottle body; the cover is arranged on the upper part of the connecting piece; a flow guide hole is formed in the connecting piece; and a coating material hole is formed on the upper peripheral wall of the cover; the flow guide hole is communicated with the coating material hole; and the coating material hole is covered by a shielding member which is made of a material of fibrous tissue. Through the device, the problem of low supplementary coating speed of manual coating is solved, the supplementary coating amount can be more easily controlled in a supplementary coating process, and the difficulty of a subsequent drying step is reduced; meanwhile, the phenomenon that a dirty product occurs is effectively controlled, so the product quality is effectivelyimproved.

The invention discloses a polymer template surface treatment method. The polymer template surface treatment method comprises the following steps: providing a polymer template, wherein the surface of the polymer template is provided with a wear-resistant anti-sticking layer; the abraded anti-sticking layer is treated to form a substrate surface, and the water drop angle of the surface of the substrate surface ranges from 0 degree to 50 degrees; the method comprises the following steps: coating a film layer on the surface of a polymer template to form the substrate surface, and covering a worn anti-sticking layer with the film layer; or removing the abraded anti-sticking layer by adopting a corrosive solution so as to expose the substrate surface; and re-coating the anti-sticking layer on the substrate surface of the polymer template.

The invention discloses a water-based alkyd amino high blackness and high gloss intermediate paint and a preparation method thereof. The intermediate paint comprises the following raw materials in percentage by weight: water-based alkyd resin 50-70%, dispersant 0.5-2%, defoam agent 0.2-0.5%, carbon black 1-3%, wetting agent 0.1-0.3%, level agent 0.1-0.4%, amino resin 10-16%, pH regulator 1.5-3.5%,cosolvent 3-5%, deionize water 10-20%. 30% of that water-based alkyd resin in the formula is taken, slowly added into a paint mix tank, pH adjustment is added according to 5% of the mass fraction ofthe added water-based alkyd resin under the stirring state of 300r/min, and the mixture is dispersed for 10-15min, 3% of cosolvent and 8% of deionized water are added under the stirring state of 300r/min, and and the mixture is dispersed for 10-15 min, then dispersant is added and a part of defoam agent is added, the stirring speed is increased slowly to 500r/min, and the stirring lasts for 30min. The coating is a single-component coating, and after coating, it is dried through 120-140 DEG C baking at medium and low temperature for about 60 minutes, finally a crosslinked network structure isformed, which is more than double the efficiency of solvent-based coatings currently used.

The invention provides UV-cured high-surface-tension gloss oil. The UV-cured high-surface-tension gloss oil comprises the following components in parts by weight: 50-60 parts of modified acrylic resin, 30-40 parts of polyurethane acrylic resin, 5-15 parts of benzyl acrylate, 5-10 parts of a photoinitiator and 0.5-2 parts of a wetting aid. According to the invention, the modified acrylic resin HC5110 is matched with the high-hardness resin HP6615, and then matched with the proper monomer and auxiliary additive, and after UV curing, an organic compound with large molecular weight is formed, andmeanwhile, the oil contains chemical bonds with extremely strong polarity, so that the oil has very high surface energy. Tests show that the dyne value of the cured coating is 40 dyn/cm or above, therequirement for high surface tension of the printed coating is met, adhesive force is promoted, and multi-layer recoating is facilitated. The invention further provides a preparation method and application of the UV-cured high-surface-tension gloss oil.