80results about How to "Good anti-sinking effect" patented technology

The invention belongs to the field of chemical industry, and particularly discloses white finish coat photocurable UV (ultraviolet) paint and a preparation method thereof. The photocurable UV paint comprises the following components in percentage by weight: 20-60% of epoxy acrylate, 20-60% of polyurethane acrylate, 2-5% of phenyl acetone photoinitiator, 0.2-1% of diphenyl phosphine oxide photoinitiator, 0.2-1% of dispersant, 0.2-1% of leveling agent, 1-40% of titanium white TiO2, 5-15% of two-functional-group reactive diluent and 5-30% of three-functional-group reactive diluent. The paint has the characteristics of favorable gloss, adhesive force and leveling property, thus ensuring that the white UV paint can be better applied.

The invention discloses dielectric paste for a metal aluminum substrate thick film circuit and a preparation method thereof. The invention aims to prepare the dielectric paste matched with a metal aluminum substrate. The dielectric paste is characterized in that SiO2, Na2O, B2O3, K2O, BaO, CaO, Co2O3, TiO2, P2O5, V2O5, Sb2O3 and Cr2O3 are combined to prepare microcrystalline glass powder; and the microcrystalline glass powder and an organic binder which consists of terpinol, butyl carbitol, butyl carbitol acetate, tirbutyl citrate, 1,4-butyrolactone, nitroncellulose, ethyecellulose, hydrogenated castor oil and lecithin are put in a vessel for stirring and rolling by a three-roll roller mill in a weight ratio of the microcrystalline glass powder to the organic binder of 70-90 parts: 30-10 parts so as to prepare the finished product dielectric paste. The dielectric paste is mainly used as the dielectric paste of the thick film circuit formed by being printed on the metal aluminum substrate.

The invention belongs to the field of coatings and particularly relates to an odorless and wear-resisting smooth UV (ultraviolet) matt finish paint coating and a preparation method thereof. The odorless and wear-resisting smooth UV matt finish paint coating comprises components in percentage by weight as follows: 25%-50% of hexa-functional polyurethane acrylate prepolymers, 15%-50% of trifunctional modified polyurethane acrylate prepolymers, 15%-50% of acrylate monomers, 1%-10% of a photoinitiator, 0.2%-2% of a wetting dispersant, 0.2%-1% of a leveling agent, 0.2%-0.5% of a defoaming agent and 1%-15% of a matting agent. According to the odorless and wear-resisting smooth UV matt finish paint coating, the technical problems that a pungent smell is left, wetting of the matting agent is difficult, matting is difficult, a paint film is prone to floating and the like after curing of a conventional UV matt finish paint coating are solved, and meanwhile, the defect of crispness of the paint film caused by improvement of the wear resistance of the conventional UV matt finish paint coating is overcome.

The invention relates to a rare-earth electrode slurry of rare-earth circuit, based on the metal base board and a relative production, wherein it is characterized in that: said slurry is formed by solid material and organic solvent carrier, while their mass ratio is 70-90:30-10; the solid component comprises: silver, palladium, and yttrium composite power and micro-crystal glass powder, while their mass percentage is 99.4-94:0.6-6; said composite power is formed by silver, palladium, and yttrium powders at the ratio as 0.6-10:99-82:0.4-8; said micro-crystal glass is the one in SiO2-Al2O3-CaO-B2O3-Bi2O3-La2O3 group. And the production comprises: (1), preparing rare-earth micro-crystal glass powder; (2), preparing silver, palladium, and yttrium composite powder; (3), preparing organic solvent carrier; (4), mixing material in three-dimension and rolling with three rollers; (5), preparing the rare-earth slurry; (6), bottling. The invention is environment friendly and better humidity compatibility.

The invention relates to a large-power thick-film circuit resistor sizing agent based on a stainless steel substrate and a manufacturing method thereof. The invention provides a resistor sizing agent with a low resistance, excellent insulative performance, printing characteristic and burning characteristic, and which is matched with an insulated stainless steel substrate. The manufacturing method of the invention comprises: A, manufacturing glass powders; B, preparing an organic adhesive; C, concocting the sizing agent: concocting a solid component of silver powers, palladium powers and crystallite glass powers in proportion, arranging the solid component and the organic adhesive in a milling pot in proportion, and milling the solid component and the organic adhesive in the milling pot. The invention selects crystallite glass as binding phase, an expanding coefficient of a resistor track layer of the invention is matched and combined with a stainless steel well; the resistor track layer of the invention has advantages of low resistance, compatible with medium mateiral used of the thick film circuit of the stainless steel substrate and electrode sizing agent, and good conductive performance, etc.

The invention relates to a polyurea type anti-settling agent. A preparation method of the polyurea type anti-settling agent comprises the following steps: reacting hydroxyl acrylic resin and a diisocyanate compound solution at the temperature of 40-60 DEG C for 1-3 hours, cooling to the temperature of 0-40 DEG C, reacting with an amine compound solution for 1-2 hours, cooling and discharging to obtain polyurea grafted acrylic resin, wherein the solid content is 45-55wt%, and the urea bond content is 3.0-4.5wt%; and grafting the polyurea structure to a side chain of a hydroxyl acrylic resin molecule, wherein the various raw materials comprise the following components: 70-90wt% of hydroxyl acrylic resin, 5-15wt% of diisocyanate compound solution and 5-15wt% of amine compound solution. The anti-settling agent is transparent liquid, has the thixotropic behavior, is good in anti-settling effect and convenient to charge and can be used for single-component high-temperature baking coatings, two-component polyurethane coatings and single-component thermoplastic coatings, and the glossiness and distinctness of the coating are not influenced.

The invention discloses resistance slurry used for a thick film circuit and based on a ceramic tile and a preparation process thereof. The invention aims to provide the resistance slurry capable of being matched with the ceramic tile and provides the possibility to the preparation of a novel floor heating element. The resistance slurry is characterized in that microcrystal glass powder composed of Bi2O3, SiO2, Al2O3, ZnO, B2O3, CuO and Ni2O3, silver powder, and an organic binding agent composed of terpilenol, tributyl citrate, alcohol ester 12, ethyecellulose, hydrogenated castor oil and lecithin are put into a container at a weight ratio of the microcrystal glass powder to the silver powder to the organic binding agent of (48%-64%) to (16%-38%) to (15%-30%), and then are stirred and rolled by a three-roller rolling mill to form the finished-product resistance slurry. The resistance slurry disclosed by the invention has the main effect that the resistance slurry can be directly printed on the back face of the ceramic tile to form the thick film circuit.

The invention discloses a fixing device for a sea bottom survey device. The fixing device comprises lifting bolts, supporting legs, a fixed seat assembly, pull rods, an umbilical cable, first rotary shafts, an underwater camera, second rotary shafts, third rotary shafts, counterweight blocks, sensors, a steel wire protection net and an armor rod, wherein the underwater camera is reversely arranged in an inner cavity of the fixed seat assembly; the outer side of the umbilical cable is coated with the steel wire protection net; the armor rod is arranged on the steel wire protection net in a stretching-out manner; the armor rod is connected with the lifting bolts; the supporting legs are annularly and uniformly distributed at the periphery of the fixed seat assembly; the upper ends of the supporting legs are rotatably connected to the outer side of the upper part of the fixed seat assembly; one end of each pull rod is rotatably connected with the bottom of the fixed seat assembly and the other ends of the pull rods are rotatably connected with the supporting legs; the counterweight blocks are fixedly arranged at the lower parts of the supporting legs; the sensors are fixed on the supporting legs. According to the fixing device for the sea bottom survey device, disclosed by the invention, the underwater camera and a water quality sensor are arranged and fixed on a bracket so that the stability of the underwater camera and the water quality sensor is ensured and the impact resistance is improved; the fixing device is simple in structure, is foldable and is convenient to carry so that the fixing device is suitable for popularization and application.

The invention discloses a solvent-free bicomponent road marking paint, which comprises 90wt% of main paint and 10wt% of a curing agent. According to a weight ratio, the formula of the main paint involves: 30-35% of polyaspartic ester polyurea resin, 1.5-2.8% of an anti-settling agent, 0.2-0.4% of a dispersant, 0.2-0.3% of a defoaming agent, 0.1-0.2% of a wetting agent, 15-20% of a pigment, 10-15% of filler, 20-25% of 400-mesh spherical quartz sand, and 5-8% of hollow glass microsphere S38HS. The curing agent is an HDI trimer. The invention also discloses a preparation method and a construction method for the solvent-free bicomponent road marking paint. The solvent-free bicomponent road marking paint adopting the technical scheme involved in the invention is free of organic volatile solvent, and has the advantages of environmental protection, safety, high wear resistance, good reflection, strong adhesion, simple construction process, and good weatherability.

The invention relates to a kitchen ware dedicated electrostatic spraying powder coating and a preparation method thereof, wherein the coating comprises the following raw materials in parts by weight: 60-90 parts of epoxy resin, 15-35 parts of fluororesin, 3-8 parts of phenolic hydroxyl resin, 5-25 parts of an antibacterial adsorbent, 2-6 parts of nano silicon dioxide, 1-5 parts of nano titanium dioxide, 1-5 parts of nano calcium carbonate, 5-15 parts of bauxite, 5-10 parts of precipitated barium sulfate, 10-20 parts of titanium dioxide, 2-5 parts of zinc stearate, 1-3 parts of benzoin, 2-6 parts of hydroxyethylmethylcellulose, 0.2-1 part of polyamide wax, 0.5-2 parts of a leveling agent, and 2-6 parts of an amine curing agent. According to the kitchen ware dedicated electrostatic spraying powder coating and the preparation method thereof disclosed by the invention, the construction requirements of electrostatic spraying can be met, moreover, the bacteriostatic and bactericidal effects can be played, and the coating also has the ability to adsorb odorous substances in kitchens.

The invention discloses a single-component water-based dip-coating sealing white primer prepared from a polyacrylic emulsion with a self-crosslinking two-phase core-shell structure. Examinations and trails prove that the single-component water-based dip-coating sealing white primer disclosed by the invention is good in sealing effect, the sagging resistance, defoaming speed, dilution and sinking prevention of the primer are superior to those of like products on the market, the substrate adhesive force and bleeding prevention of the primer are very good, the properties and environmental performance of the primer accord with GB / T23999-2009 and GB24410-2009, and the primer is particularly suitable for first dip-coating of wood wares.

The invention relates to the field of chemical ink coatings, in particular to a method for preparing a water-based polyamide thixotropic anti-settling agent. The method comprises the following steps: 1, co-polymerizing binary acid, an organic acid with hydroxyl and diamine to obtain a co-polymerized polyamide prepolymer with hydroxyl; 2, performing acidation in the way that the co-polymerized polyamide prepolymer with hydroxyl and an acidifier are subject to binary copolymerization reaction to obtain polyamide with carboxyl; 3, realizing neutralization of polyamide with carboxyl and alkali to obtain the water-based polyamide thixotropic anti-settling agent. The method is simple and is low in raw material cost; the prepared water-based polyamide is simple in process and good in product quality; the anti-sagging and leveling properties of a film when mainly used as an anti-settling agent of a coating can be better balanced; the coating system is endowed with higher thixotropy; favorable thickening and anti-settling functions are achieved; fillers and pigments in the coating are effectively prevented from sedimentation; the method can be extensively applied to the water-based system coating and has a wide application range.

The invention relates to an associative waterborne polyurethane / polyacrylate copolymer emulsion anti-settling thickener. In the anti-settling thickener, polyacrylate accounts for 70 to 95 percent of the total amount of a resin; polyurethane accounts for 5 to 30 percent of the total amount of the resin; copolymer emulsion is 10 to 1,000nm in particle size, 10 to 60 percent in solid content, 10 to 60mPa.s in viscosity, 2 to 5 in pH value and 10,000 to 200,000 in molecular weight; a waterborne polyurethane chain segment contains a negative-ion hydrophilic group or has a better effect when containing negative-ion and nonionic hydrophilic groups at the same time. The novel associative waterborne polyurethane / polyacrylate copolymer emulsion anti-settling thickener is obtained through copolymerization of the polyurethane and the polyacrylate. By adopting the anti-settling thickener, the problem of precipitation due to adding of inorganic or organic filler in re-diluted waterborne industrial coatings or certain lower-viscosity waterborne systems can be solved effectively, and a long-term anti-settling effect is achieved.

The invention discloses water-based inkjet ink and a preparation method thereof. The ink is prepared from, deionized water, polyethylene glycol 200, a pigment, ethylene glycol dimethacrylate, ethyl methacrylate, neopentyl glycol diacrylate, lauryl alcohol polyoxyethylene, triethanolamine, polyoxyethylene polyoxypropylene pentaerythritol ether, ethylene bis stearamide, 4-[(4,6-bis(octylthio)-1,3,5-triazine-2-yl) amino]-2,6-ditert-butyl phenol, octyl methoxycinnamate, titanium dioxide and the like. The water-based inkjet ink has the advantages that the water-based inkjet ink meets the requirements of environmental protection, printing pollution is greatly reduced, the octyl methoxycinnamate and the titanium dioxide are added into the ink and are combined to form a protective film for ultraviolet light blocking on the dye surface layer of the ink, so that the ink does not fade under the outdoor light exposure, is resistant to scratching and is not easily oxidized, and output performed by using the ink does not need printing materials with special coatings.

The invention provides silk printing insulation ink for substituting a PTFE insulation membrane by utilizing an electronic product cupronickel shielding cover. The single-component silk printing insulation ink is prepared from the following components by weight percent: 60 to 70 percent of epoxy modified polyester resin, 5 to 15 percent of amino resin, 5 to 10 percent of color concentrate, 1 to 3 percent of anti-settling agent, 5 to 15 percent of DBE environment-friendly solvent, 1 to 3 percent of adhesive agent, 1 to 2 percent of flatting agent, and 1 to 2 percent of defoaming agent. The silk printing insulation ink for substituting the PTFE insulation membrane by utilizing the electronic product cupronickel shielding cover is simple and convenient in use and high in insulation value which is equivalent to PTFE; and meanwhile, a coating film is resistant to scratch, good in flexibility, resistant to impact, capable of reaching 0T curvature, suitable for stamping processing after the silk printing, and suitable for a mobile phone, suitable for the mobile phone, and the insulation function of the electronic product cupronickel shielding cover is capable of substituting the original process of the laminated PTFE membrane, so that the purpose of achieving the high efficiency of mass production is realized.

The invention relates to modified epoxy-connected paint and a preparing method thereof. An A component of the paint is prepared by adding epoxy resin into a mixed solvent of xylene, n-butanol and cyclohexanone, adding copolymer of vinyl chloride and vinyl isobutyl ether, chlorinated rubber, acrylic resin, wet-method sericite, mica iron oxide, fumed silica, talcum powder, titanium dioxide, a polymethylalkyl siloxane solution and polyamide wax, mixing, stirring, and grinding. A B component of the paint is prepared by mixing a cashew nut shell oil modified phenolic aldehyde amine curing agent and a phenolic aldehyde amine curing agent, and stirring uniformly. During using, the A component and the B component are mixed uniformly. The paint can be used for intermediate paint of anti-corrosive primer, and antifouling paint, or chlorinated rubber finish or decorative finish so as to ensure good adhesive force.

The invention discloses special extinction powder for a water-based coating and a preparation method of the special extinction powder. The preparation method comprises the following steps: adding water and silicon dioxide powder into a reaction kettle, and adjusting the pH value of the solution to be 8-11 by using water glass I; uniformly stirring, and then adding water glass II and a sulfuric acid aqueous solution into the reaction kettle, wherein the concurrent flow time lasts for 30-120 min, and the concurrent flow temperature is 30-90 DEG C; after concurrent flow reaction is finished, adding a modification aid into the reaction kettle; adjusting the pH value of the solution in the reaction kettle to be 9, and then aging for 0.5-3 h at the temperature of 90 DEG C; adjusting the pH valueof the solution in the reaction kettle to be 2.5-3, and then reacting for 30 min to obtain a reaction product; and filtering the reaction product, washing the reaction product until the conductivityis less than 100 mu S, drying the reaction product at the temperature of 100-200 DEG C, and crushing the reaction product to obtain the special extinction powder for the water-based coating. The silicon dioxide extinction powder prepared by the invention has high compatibility with resin, and the water resistance and transparency of a water-based coating paint film are enhanced.

The invention discloses dielectric paste for a stainless steel thick film circuit and a preparation method of the dielectric paste. The dielectric paste comprises the following components in percentages by weight: 70-90% of a solid-phase component and 30-10% of an organic binder, wherein the organic binder comprises the following raw materials in percentages by weight: 80-98% of tributyl citrate,0.1-5% of hydrogenated castor oil, 0.5-10% of ethyecellulose, 0.1-10% of terpilenol and 0.1-5% of lecithin. The preparation method comprises the following steps of (A) preparing microcrystalline glasspowder; (B) preparing the organic binder; and (C) preparing the dielectric paste. The dielectric paste is high in puncture strength and good in insulating property, printing and sintering characteristics and environmental protection performance and has excellent thixotropy and anti-settling effect.

The invention relates to an electrostatic spraying type high abrasion-resistant powder coating and a preparation method thereof. The electrostatic spraying type high abrasion-resistant powder coating is prepared from the following raw materials in parts by weight: 45 to 95 parts of polyurethane, 5 to 25 parts of hydroxy acrylic resin, 1 to 5 parts of epoxy resin, 5 to 15 parts of multiwall carbon nanotube, 2 to 8 parts of titanium dioxide, 1 to 4 parts of aluminum nitride, 5 to 15 parts of mica powder, 5 to 10 parts of talcum powder, 10 to 30 parts of titanium dioxide, 1 to 20 parts of pigment filler, 0.5 to 2 parts of dibutyltin dilaurate, 0.5 to 3 parts of benzoin, 1 to 3 parts of flatting agent, 0.1 to 1 part of anti-precipitating agent, and 2 to 40 parts of curing agent. The electrostatic spraying type high abrasion-resistant powder coating has the advantage that at the premise of ensuring good conductivity of the powder coating, the corrosion-resistant property of the coating is greatly improved.

The invention discloses a coating material for preventing concrete from carbonization. The coating material is prepared from the following components in parts by weight: 15-20 parts of styrene-acrylic emulsion, 10-25 parts of acrylic acid emulsion, 30-45 parts of cement, 30-55 parts of fly ash, 3-5 parts of preservative, 1-1.5 parts of dispersing agent, 0.2-0.5 part of defoamer, 0.4-0.6 part of anti-settling agent, 0.1-0.3 part of leveling agent and 25-30 parts of water. By utilizing the viscosity of the styrene-acrylic emulsion and acrylic acid emulsion, the cement, fly ash and other raw materials are mixed to form a compact slurry, and the slurry is coated on the outer surface of the concrete to form a compact hard protective layer on the concrete surface so as to perform favorable isolation functions on carbon dioxide, oxygen and other components in air, thereby achieving the effect of preventing the concrete surface from carbonization; and thus, the concrete has favorable weather resistance and fouling resistance.

The invention discloses a composite coating. The composite coating comprises the following components in parts by weight: 40-50 parts of fluorocarbon resin, 0.5-2 parts of graphene, 0.5-1 part of polyamide rheological agent, 5-15 parts of modified phosphate, 0.5-2 parts of dispersing agent, 0.5-2 parts of coupling agent, 5-10 parts of modified resin and 10-20 parts of solvent. The following two technical problems are mainly solved: I. the functions of the primer and the top coat are unified and the aim of convenience in construction is achieved; and II. graphene is used as a functional filler to achieve the function of high barrier, so corrosive media are difficult to permeate substrates, thus improving the salt spray, chemicals, weather and damp heat resistance of the coating.

The invention discloses composite-material-based thick-film circuit rare earth electrode slurry and a preparation process thereof. The composite-material-based thick-film circuit rare earth electrode slurry is characterized in that the slurry comprises a solid-phase component, an organic solvent carrier and a rare earth oxide; the ratio of the sum of weights of the solid-phase component and the rare earth oxide to the weight of the organic solvent carrier is 70-90% to 30-10%; the weight ratio of silver-aluminum-yttrium composite powder to crystallite glass powder in the solid-phase component is 99.4-94% to 0.6-6%; and in the silver-aluminum-yttrium composite powder, the particle diameters of aluminum powder, silver powder and yttrium powder are smaller than 2 microns, and the weight ratio of aluminum powder to silver powder to yttrium powder is 0.6-10% to 99-82% to 0.4-8%. The composite-material-based thick-film circuit rare earth electrode slurry of the invention has the advantages of good conductive performance, low resistivity, wide temperature coefficient, high compatibility, high applicability, high power density, and high heat tolerance. The slurry is well matched with LED chip substrates and PTCR-xthm electrothermal chip dielectric slurry, has high thermal conductivity, and is green, environment-friendly, safe and reliable.

The invention discloses a waterborne aluminum powder paint and a preparation method thereof. The waterborne aluminum powder paint comprises a part A and a part B, wherein the part A is prepared from the following components in parts by weight: 50-90 parts of waterborne polyurethane emulsion, 0.1-5 parts of a wetting agent, 0.01-1 part of a leveling agent, 0.02-2 parts of a de-foaming agent, 20-45 parts of an arrangement additive, 0.1-5 parts of a neutralizing agent, 1-10 parts of a film-forming additive and 5-20 parts of water; the part B is prepared from the following components in parts by weight: 1-10 parts of waterborne aluminum powder, 1-10 parts of a film-forming additive and 0.1-3 parts of a dispersing agent. The waterborne aluminum powder paint provided by the invention is excellent in arrangement of aluminum powder, anti-settling effect, water resistance and stability, and suitable for use on ABS / PC and other plastic substrates.

The invention discloses a silicon carbide-based composite circuit board and a preparation method thereof and belongs to the technical field of circuit boards. The silicon carbide-based composite circuit board comprises a silicon carbide-based composite base board and a circuit printed on the silicon carbide-based composite base board, wherein the silicon carbide-based composite circuit board is prepared from raw materials of, by weight part, 50-60 parts of silicon carbide, 20-28 parts of glass powder, 5-10 parts of filler, 3-7 parts of adhesives and 7-12 parts of additives. The silicon carbide-based composite circuit board is prepared by taking the silicon carbide and the glass powder as the main component and matching with the filler, the adhesives and the additives through ball milling,ultrasonic treatment, spray granulation and three sintering processes. Through dispersion and adhesion of the raw materials, the prepared silicon carbide-based composite base board can be low in thermal expansion coefficient, high in mechanical strength, good in stability and capable of effectively improving the qualification rate, thereby being high in promotional significance.

The invention discloses a production method of an attapulgite suspending agent. The production method comprises the following steps: purification of attapulgite clay: firstly simply airing attapulgite raw ores, washing, filtering, and drying filtrate, so as to remove large-particle-size impurities such as opals, carbonate and silicate in the attapulgite raw ores; acidizing treatment: replacing aluminum ions, magnesium ions, sodium ions and the like in internal nano-ducts of the attapulgite clay with hydrogen ions of sulfuric acid, so as to further improve adsorptivity and caking property of the attapulgite clay; and preparation of the suspending agent: mixing acid-base-resistant silicon dioxide, a phase transfer catalyst tetrabutylammonium bromide and a thickening agent sodium carboxymethylcellulose, and carrying out ultrasonic treatment, so as to obtain the suspending agent. The production method of the attapulgite suspending agent has the beneficial effects that a production process is simple, and the prepared suspending agent has good anti-settling effect, proper viscosity and excellent adsorptivity and caking property and is suitable for being used as a suspending agent of coatings.

The invention discloses high-solid content low-VOC high-gloss PE (nonsaturated polyester) paint. The paint comprises PE resin 8301, PE resin 988, a F450PE anti-greening dispersant, an AC-300 antifoaming agent, transparent powder of 1250 meshes, powdered steatile of 800 meshes, PLB zinc stearate, a PE paint levelling agent LP-5800, 6500 antisettling wax slurry and silica antisettling slurry. The silica antisettling slurry is prepared from PE resin 988, toluene and silica M-5. The high-solid content low-VOC high-gloss PE paint has a gloss degree of 80 or more, high transparency, good antisettling effects, good fullness, a low cost and a fast drying rate, resists whitening in a rainy day and has good polishing effects, high solid content (close to 100%) and good production and operation stability.

The invention relates to PU white primer beneficial to low-temperature quick drying and free of prickly heat. The PU white primer is composed of a component A and a component B, wherein the componentA is prepared from the following raw materials in parts by weight: 3-8 parts of coconut oil resin, 17-23 parts of fatty acid alkyd resin, 1-3 parts of butyl acetate, 19-25 parts of titanium dioxide, 30-45 parts of ground calcium carbonate, 0.1-0.3 part of an antifoaming agent, 0.8-2.5 parts of an anti-settling agent, 0.05-0.15 part of leveling agent and 1.5-2.5 parts of propylene glycol methyl ether acetate, and the component B is prepared from the following raw materials in parts by weight: 25 to 50 parts of a mixed solvent, 0.3 to 0.7 part of a dehydrating agent, 5 to 9 parts of Demoder L75(C), 20 to 25 parts of BG-450 TB, 25 to 35 parts of DESMODUR IL 1451 and 2 to 4 parts of HT-100 HDI. According to the PU white primer, a mixture of coconut oil resin, fatty acid alkyd resin and castoroil resin is selected as a main film-forming material, so that the polishing property is improved, the drying speed is increased, the flexibility is improved, and the service life is prolonged.

The invention discloses a flushing device with an anti-sinking structure for river silt and an implementation method of the flushing device. The flushing device comprises anti-sinking supporting legsand an upper working tabletop, hollow grooves are formed in the anti-sinking supporting legs, first motors are fixedly connected to the upper ends of the hollow grooves, telescopic air cylinders are fixedly connected to the output ends of the first motors, reinforcing steel bar rings are welded to the lower ends of the anti-sinking supporting legs, and movable holes are formed in the positions, onthe upper parts of the reinforcing steel bar rings, of the anti-sinking supporting legs at equal intervals. According to the flushing device with the anti-sinking structure for river silt and the implementation method of the flushing device, the lower ends of piston rods are fixedly connected with threaded drill bits, the threaded drill bits can be inserted into muck below the silt under the control of the first motors, a flushing device body can be fixed, and the situation that after the silt is flushed and loosened, the flushing device sinks is prevented; and the structure is stable, in thedownward moving process of the piston rods, limiting blocks release limitation on pushing plates, supporting springs release elastic force to push the pushing plates to move downwards.