59results about How to "Play a defoaming role" patented technology

The invention discloses a sleeve grouting material for steel bar connection, relates to the technical field of concrete, and solves the technical problem that a conventional grouting material generates cracks easily. The grouting material comprises following components in parts by weight: 500 to 530 parts of silicate cement, 430 to 470 parts of quartz sand, 0.1 to 0.5 part of CSA expanding agent,25 to 30 parts of beads, 1.5 to 2.5 parts of polycarboxylic acid water reducer, and 0.3 to 0.4 part of antifoaming agent. The beads and polycarboxylic acid water reducer are used to improve the flowing performance and tensile strength of the grouting material, the expanding agent can generate uniform and compact pores, the shrinkage stress of the grouting material is eliminated, and the crack generation is avoided therefore.

The invention discloses polyvinyl dichloride (PVDC) coating latex special for cigarette films and a preparation method and application of the PVDC coating latex special for the cigarette films. The PVDC latex is prepared from a certain amount of mixed monomers of vinylidene chloride, methyl acrylate and itaconic acid, a ptomotor, an initiator, an emulgator and a seed emulgator, and the preparation method is seed emulsion polymerization. According to the preparation method, microcrystalline wax capable of having a defoaming effect is added to enable the residual quantity of monomers in the latex is smaller. The cigarette films made of the latex has heat sealing performance and a high barrier property, and can maintain the scent of cigarettes and enable the cigarettes to not go bad and not be affected with damp. The heat sealing strength of the cigarette films is equal to or larger than 3N/15mm, the coating weight is 3g/m<2>, the permeation amount of water vapor is equal to or smaller than 6g/m<2>*24h, the permeation volume of oxygen is equal to or smaller than 36g/m<2>*24h, and the residual quantity of vinylidene chloride monomers is equal to or smaller than 1mg/kg or is not detected.

The invention discloses a graphene lubricant additive. The graphene lubricant additive comprises the following raw materials by weight: 20-30 parts of polyving akohol, 5-10 parts of alkyl glycoside, 5-10 parts of alkylphenol polyoxyethylene ether, 1-3 parts of dimethyl silicone, 1-3 parts of rare earth element of which the particle size is 20-50 nm, 4-6 parts of Cu of which the particle size is 20-50 nm, 4-6 parts of SiO of which the particle size is 20-50 nm, 0.1-1 part of graphene, 1-3 parts of 2,6-ditertiary butyl-4-methylphenol, 1-3 parts of benzotriazole, 3-5 parts of sodium alkyl benzene sulfonate, 3-5 parts of 2-mercaptobenzothiazole, and 3-5 parts of sodium benzoate. The graphene lubricant additive is added to the lubricant for passivating the catalytic action of the metal to the oxidation reaction, and inhibiting the oxidation process of the oils, so that the anti-oxygenation effect of the lubricant is enhanced, the service life of the lubricant is prolonged, and the machine can be protected.

The invention relates to a defoaming agent and a production process, and the defoaming agent is composed of components with the following parts by weight: 60 parts of dimethyl silicone oil, 15 parts of glyceryl polyether 3050, 15 parts of liquid paraffin and 10 parts of water. The production process comprises the following steps: 10 parts by weight of water is added in a reactor; 60 parts by weight of dimethyl silicone oil is slowly added in the reactor to be stirred at the normal temperature, thus forming emulsion-like solution; 15 parts by weight of glyceryl polyether 3050 is added to be continuously stirred at the normal temperature till the glyceryl polyether 3050 is fully dissolved in the emulsion-like solution; 15 parts by weight of liquid paraffin is further added to be continuously stirred at the normal temperature till the liquid paraffin is fully dissolved in the emulsion-like solution; the low-speed stirring is carried out for 30 minutes, the solution is kept at 18 DEG C to 22 DEG C, and the defoaming agent is prepared by carrying out the reactor for 24 hours. The defoaming agent and the production process have the advantages that: the production process has no waste gas, no waste water and no noise to be discharged to the outside; the product is fully dissolved in the water and non-toxic, thus not producing secondary environmental pollution, the product is used in a big water region, the defoaming speed is fast, the using amount is small and the cost is low.

The invention discloses a motor vehicle antifreeze fluid and a preparation method of the motor vehicle antifreeze fluid, and belongs to the field of auto accessories. A slow corrosion inhibitor is prepared from waste cooking oil through the processes of pretreatment, quaterisation reaction and the like, an imidazoline intermediate is obtained through the reaction of the slow corrosion inhibitor and hydroxyethyl ethylenediamine at the high temperature, an imidazoline quaternary ammonium corrosion inhibitor is obtained after the quaterisation of the imidazoline intermediate through benzyl chloride, an imidazole ring and a polar group in the molecule interact, the imidazoline quaternary ammonium corrosion inhibitor is preferentially adsorbed onto the surface of metal in the adsorption and isfavorable for forming a stable protection film on the surface of the metal, moreover, a dense hydrophobic film is formed far from the surface of the metal due to the free moving and extending of a hydrophobic branch and hinders the contact between a corrosive medium and a metal matrix, and the effect of relieving the metal corrosion is achieved. The motor vehicle antifreeze fluid solves the problems that the motor vehicle antifreeze fluid corrodes a metal part in the use process and also forms a scale easily at present.

The invention discloses a pore removing device for a light-weight wallboard. The pore removing device comprises a rack; runners of a transverse walking support are arranged at the upper portions of a left vertical beam and a right vertical beam of the rack, at least three vertically-moving wheels are symmetrically arranged at the positions, on the inner walls of the two vertical beams, of the front end of the transverse walking support, a vertical beam is arranged on the inner side of each vertically-moving wheel, and a plurality of vibration plates are connected to the bottoms of the two vertical beams; air cylinders are arranged at the middle portions of the side walls of the front sides of the two vertical beams, the lower ends of the air cylinders are connected with a scraping plate; a double-shaft motor is arranged on the lower side of a transverse beam at the upper portion of the back end of the transverse walking support, and an output end of the double-shaft motor is connected with two screw lifters through lifter transmission shafts; and a hollow shaft reducer is arranged at the lower portion of the transverse walking support, a horizontal transmission shaft is connected to the hollow shaft reducer, and a gear is arranged at the end of the horizontal transmission shaft and meshed with racks arranged on the inner walls on the left side and the right side of the rack. By means of the above structure, the effects of being simple in structure, safe, high in efficiency, flexible in operation and higher in automation degree, saving time and labor, achieving mechanization and being capable of removing bubbles so as to guarantee the wallboard quality are achieved.

The invention discloses an environment-friendly nontoxic normal-temperature composite degreasing adsorbent for metal electroplating pretreatment. Each liter of the environment-friendly nontoxic normal-temperature composite degreasing adsorbent contains the following raw materials in parts by weight: 2.6-2.8 of isomeric alcohol polyoxyethylene ether, 3.4-3.7 of FMES, 1.4-1.7 of dodecyl glucoside, 4-5 of a polyethylenimine solution, 0.6-0.7 of sodium hydroxide, 3.3-3.4 of sodium citrate, 0.5-0.7 of sodium nitrate, 1.2-1.4 of aniline, 2-4 of orange oil, 2-3 of corn starch, 4-6 of quartz sand, 7-9 of sorghum stalks, 0.6-0.8 of mashed apple and a proper amount of water. A novel metal degreasing agent integrated with degreasing property, corrosion resistance and filterability is prepared by compounding the isomeric alcohol polyoxyethylene ether and the FMES, adding the compound into the raw materials, adding mixed filler with high adsorptivity and matching the mixed filler with other effective adjuvants, has the characteristics of environment friendliness, nontoxicity, degreasing thoroughness, high cleaning speed as well as energy and labor saving and brings great convenience for factory production.

The invention discloses a polyvinyl dichloride (PVDC) latex special for slick paper used for food packaging and a preparation method thereof and application thereof. The PVDC latex is obtained by a mixed monomer, an auxiliary, an initiating agent, a mixed type emulsifying agent and a seeded emulsifying agent, wherein the mixed monomer contains vinylidene chloride, vinyl cyanide and acrylic acid, the mixed type emulsifying agent contains a COPS-1 emulsifying agent and a 2A-1 emulsifying agent, and the seeded emulsifying agent contains sodium dodecyl benzene sulfonate. Due to the facts that according to the PVDC latex, the mixed type emulsifying agent containing reaction type emulsifying agents is adopted, and the acrylic acid is added together with the reaction type emulsifying agents in an emulsion polymerization stage, the prepared PVDC latex is good in stability. Microcrystalline wax which has a function of defoaming enables monomer residual volume in the latex to be lower. The slick paper coated with the PVDC latex is environment-friendly, degradable, good in barrier property and oil resistance, capable of reaching an effect of aluminum foil packaging materials when serving as packaging materials, and capable of being used for food packaging. When coating amount of the latex is 12g/m2, steam transit amount is less than or equal to 3g/m2.24h and oxygen permeability is less than or equal to 7g/m2.24h. When the coating amount is added to be 15g/m2, effects of aluminum foil packaging materials which are used for food packaging can be achieved.

The invention discloses a nanometer cooling water additive. The nanometer cooling water additive comprises the following raw materials by weight: 30 to 40 parts of alkaline ionized water with a pH value of 11 to 13.5, 25 to 35 parts of glycol, 15 to 20 parts of propylene glycol, 5 to 10 parts of alkyl glycoside, 5 to 8 parts of an rare earth element with a particle size of 20 to 50 nm, 2 to 3 parts of Cu with a particle size of 20 to 50 nm, 2 to 3 parts of SiO2 with a particle size of 20 to 50 nm, 0.1 to 0.3 part of ammonium dihydrogen phosphate, 3 to 5 parts of sodium silicate, 0.1 to 0.2 part of sodium molybdate, 0.1 to 0.2 part of benzotriazol, 3 to 5 parts of sodium benzoate, 2 to 3 parts of amino trimethylene phosphoric acid, 4 to 6 parts of p-hydroxybenzyl methyl ether and 0.01 to 0.05 part of fluorescent orange. According to detection results, the nanometer cooling water additive has a freezing point of 40 DEG or below and a boiling point of 115 DEG C or above.

The invention relates to an assistant used for producing a motor vehicle tail gas purifying converter, containing fatty acid, fatty acid glyceride, alcohol group or phenolic group polyethenoxy ether. The invention also relates to a production method of the assistant, which comprises the following steps: firstly, placing the fatty acid and the fatty acid glyceride into a reaction kettle to be heated to 60-80 DEG C; secondly, stirring the mixture for 2-3h at 60-80 DEG C until the mixture changes into transparency material; thirdly, adding the alcohol group or phenolic group polyethenoxy ether into the reaction kettle, stirring the mixture for 2-4h at 60-80 DEG C; fourthly, giving off the product of reaction before cooling, crushing solid after the product of reaction is naturally cooled so as to obtain the assistant. The invention shortens the milling time because assistant accounting for 8-20 percent of the weigh of the grout is added into the grout, can obtain the grout with uniform granularity, stable dispersion, no foam, and good levelability and easy loading. The invention has better comprehensive effect.

The invention discloses a solid defoamer for cement-based grouting materials. The defoamer is composed of defoamer particles and a protective film wrapping the defoamer particles, and the protective film is a water-soluble polymer film. Accordingly, the invention also discloses a preparation method of the solid defoamer for cement-based grouting materials. The defoamer with excellent alkali resistance is made directed at the special use conditions of cement-based grouting materials, the surfaces of the solid particles are wrapped with the protective film, thus effectively delaying the release of defoamer effective components and prolonging the product shelf life, during use, the solid defoamer can be quickly dissolved in a water phase and rapidly release effective components to play a defoaming role.

The invention provides wood door adhesive preprocessing equipment. The equipment comprises a shell, wherein a feeding hole is formed in one side of the upper surface of the shell; an adhesive inlet and an adhesive outlet are respectively formed in the upper and lower ends of the side surface; at least one group of guide pipes are vertically arranged in the shell; a piston plate sleeves the guide pipes; space in the shell is divided into an upper chamber and a lower chamber by the piston plate; the piston plate can move up and down along the guide pipes; a first driving motor is mounted at thecenter of the piston plate; a mixing disc is mounted at the front end of a rotating shaft of the first driving motor; and the upper surface of the piston plate 8 is connected with a power supply wireextending to the outer side of the top of the shell. The interior of the shell is divided into the upper chamber and the lower chamber through the piston plate; through cooperation between the two chambers and the structure of the piston plate and the hollow guide pipes in the piston plate, raw materials circulate between the two chambers in a reciprocating mode and are mixed through movement andextrusion of the piston plate, so mixing effect is uniform, bubbles are not prone to being generated, and the phenomenon that mixing efficiency is low due to layering caused by different qualities ofthe raw materials can be effectively avoided; and the equipment has good development prospects.

The invention provides an adhesive and applications thereof, a large power LED bulb lamp, and a preparation method thereof. The adhesive comprises the following components in parts by weight: 70 to 80 parts of component A, 5 to 15 parts of component B, and 10 to 15 parts of volatilizing agent. The component A comprises the following components in percentage by weight: 50 to 70% of alpha,omega-hydroxyl terminated dimethyl siloxane, 10 to 30% of first thermal conductive particles, and 20 to 40% of second thermal conductive particles. The component B comprises the following components in percentage by weight: 18 to 27% of polydimethyl siloxane, 4 to 8% of monomer fusing agent, 63 to 75% of third thermal conductive particles, and 2 to 7% of thermal conductivity aid. During the curing process of the adhesive, the volatilizing agent can form a vacuum force between the substrate where the adhesive is painted and a heat radiator, thus the substrate and the heat radiator can be bonded more tightly, the effective contact area is increased, and the heat radiating effect of the large power LED bulb lamp is effectively improved, so that the LED bulb lamp can sustain larger power.

The invention relates to the field of printing ink, and discloses water-based gold ink suitable for overprinting and a preparation method thereof. The water-based gold ink is prepared from, by weight,15-25 parts of bronze powder, 30-50 parts of a water-based binder, 15-25 parts of absolute ethyl alcohol, 10-25 parts of deionized water, 2-5 parts of a surfactant and 1-3 parts of auxiliaries. The preparation method comprises the following steps: mixing and stirring bronze powder and a mixed solvent of absolute ethyl alcohol and deionized water in parts by weight, fully wetting and dispersing the materials, soaking the prepared copper paste for 24 hours, adding the water-based binder into the copper paste in parts by weight, carrying out stirring at a high speed, fully dispersing the mixtureand adding the surfactant and auxiliaries into the materials, carrying out stirring at a high speed, and uniformly mixing the materials to obtain the water-based gold ink. Compared with the prior art, the phenomenon that copper powder undergoes an oxidation reaction when meeting water to generate verdigris is effectively avoided, the surface tension of the water-based gold ink can be adjusted byadjusting the proportion of the surfactant in the gold ink, and the overprinting problem of the gold ink can be effectively solved.

The invention discloses photochromic architectural glass and a preparation method thereof, and relates to the field of building materials. The photochromic architectural glass comprises the followingraw materials in parts by weight: 30-50 parts of a styrene-methyl methacrylate copolymer, 10-20 parts of organic glass, 0.1-0.3 part of an initiator, 50-60 parts of titanium dioxide, 6-8 parts of tungsten oxide, 6-8 parts of sodium bromide, 0.2-0.4 part of copper oxide, 0.3-0.5 part of an antifoaming agent, and 0.4-0.6 part of a catalyst. The photochromic architectural glass disclosed by the invention has significantly-improved quality, mechanical impact strength and transparency compared with glass prepared by a conventional process, and silver bromide in the raw material component can be decomposed in the case of strong light, so that the light transmittance of the architectural glass disclosed by the invention is obviously reduced, and the architectural glass has a light-insulating effect.

The invention provides a defoaming device for engine oil inside a crank case of an engine. The defoaming device comprises a structure body; the structure body is located below a crank; multiple first open slots, multiple second open slots, multiple third open slots and multiple fourth open slots are arranged and formed in the structure body; the first open slots are located in the front end of the structure body and correspond to the position of a journal of a crank connecting rod; the second open slots are located in the front side of the middle of the structure body and correspond to the position of the journal of the crank connecting rod; the third open slots are located in the back side of the middle of the structure body and correspond to the position of a balancing weight of the crank; the fourth open slots are located in the back end of the structure body and correspond to the position of the journal of the crank connecting rod; and flow guide plates are arranged on the four kinds of open slots. The defoaming device has the beneficial effects as follows: open slot structures at different angles are formed in different positions of the structure body according to the rotation direction of the crank of the engine, air bubbles produced by air flows produced due to movement of the crank are avoided, the flow direction of the engine oil falling back freely is guided, and splashing is prevented.