602 results about "Defoamer" patented technology

The invention relates to the technical field of fine chemical engineering preparations, in particular to an environment-friendly non-silicon defoaming agent as well as a preparation method and application thereof. 3.6 to 5.1 parts of a defoaming aid; 0.24 to 0.35 part of a thickening agent; 2-3 parts of a dispersing agent; 2.6 to 3.5 parts of an emulsifier; 18 to 25.3 parts of an organic solvent; 65 to 82 parts of deionized water; wherein the polyether ester A and the polyether ester B with amphiphilic structures in the polyether ester can be quickly spread on the surface of foam, carry hydrophobic components to permeate a liquid membrane and accelerate foam breakage, and the defoaming assistant A and the defoaming assistant B further promote the defoaming and foam inhibition performance of the defoaming agent by reducing competitive adsorption to the defoaming agent and delaying release of active molecules. Compared with the prior art, the method has a wide application prospect.

The invention belongs to the technical field of cold-rolled sheet processing, and particularly relates to a physical defoaming alkali liquor circulation method which comprises the following steps: a foam capacitive monitoring array at the top of an alkali liquor tank generates a foam thickness gradient map in real time; real-time alkali liquor temperature, conductivity, circulating flow, strip steel running speed and historical foam thickness data are fused, a foam layer height prediction value is output, and when the prediction value exceeds a safety threshold value, a turbulence generator is automatically triggered to generate high-frequency pulse water flow; when the foam finally flows downwards to the top opening of the alkali liquor tank through the foam overflow pipe, the foam is crushed by high-frequency pulse water flow in the alkali liquor backflow pipeline and becomes alkali liquor to drop into the alkali liquor tank, the foam is physically crushed through fluid shear force and high-frequency vibration under the synergistic effect of the sectional type backflow pipeline and the capacitive foam monitoring array, the defoaming efficiency is high, and the defoaming effect is good. Dependent chemical defoaming agents are reduced, and the problems of strip steel surface residues and wastewater treatment are solved.

The invention relates to the technical field of coatings, and discloses a wear-resistant waterborne polyurethane finish paint and a preparation method thereof. The wear-resistant waterborne polyurethane finish paint comprises a component A and a component B in a mass ratio of (4-7): 1, the component A is prepared from the following components in parts by mass: 50 to 60 parts of waterborne polyurethane, 10 to 15 parts of hyperbranched polysiloxane, 2 to 3 parts of polyoxyethylene fatty acid, 0.8 to 1.2 parts of a de-foaming agent, 6 to 8 parts of color paste and 10 to 15 parts of water; and the component B comprises an isocyanate curing agent. The wear-resistant waterborne polyurethane finish paint prepared in the invention has excellent adhesion strength and wear resistance.

The invention belongs to the field of hydraulic oil, and particularly discloses a flame-retardant hydraulic oil composition and a preparation method thereof. The hydraulic oil composition is prepared from the following components in parts by weight: 67 to 97 parts of main base oil, 5 to 30 parts of auxiliary base oil, 1.2 to 1.5 parts of a lubricating agent, 1.5 to 2.0 parts of an antioxidant, 0.03 to 0.06 part of a corrosion inhibitor, 0.01 to 0.08 part of a demulsifying agent and 0.01 to 0.08 part of a de-foaming agent, the auxiliary base oil is one of trimethylolpropane trinonanoate, trimethylolpropane caprylic capric acid ester and trimethylolpropane caprylic laurate; the components are sequentially mixed to obtain the flame-retardant hydraulic oil. According to the invention, a specific main-auxiliary base oil system is compounded with other additives, so that the final oil product has excellent anti-oxidation characteristic, the use temperature upper limit is improved, the service life of the oil product is further prolonged, and the stability and low-temperature pumping capacity of the oil product in the use process are improved.

The invention relates to the technical field of building decoration materials, in particular to a high-performance antibacterial mildew-proof sealant and a preparation method thereof. The sealant is prepared from the following raw materials in parts by weight: 20 to 30 parts of silane modified polyurethane, 40 to 50 parts of nano calcium carbonate, 20 to 30 parts of a plasticizer, 3 to 7 parts of a hydroxyl silane coupling agent, 0.4 to 0.8 part of a mildew preventive, 0.3 to 0.7 part of an ultraviolet light absorber, 0.3 to 0.7 part of a de-foaming agent and 0.8 to 1.2 parts of a first catalyst. The high-performance antibacterial and mildew-proof sealant has long-acting antibacterial and mildew-proof performance, and excellent mechanical performance and weather resistance of the sealant can be maintained, so that the requirements of industries such as building, medical treatment and food processing on high-performance, healthy and environment-friendly sealing materials are met; and the preparation method is simple and controllable, the production cost is relatively low, and large-scale production can be realized.

The invention belongs to the technical field of coatings, and particularly relates to a UV-LED curing coating for coating a new energy automobile as well as a preparation method and application of the UV-LED curing coating. The coating is prepared from the following components in parts by mass: 30 to 50 parts of modified epoxy acrylate resin, 10 to 20 parts of polyurethane acrylate resin, 10 to 20 parts of modified polydimethylsiloxane, 5 to 10 parts of a mixed photoinitiator, 1 to 3 parts of a photosensitizer, 1 to 3 parts of a flatting agent, 1 to 3 parts of an anti-aging agent, 1 to 3 parts of a de-foaming agent and 10 to 40 parts of water. The coating combines the advantages of a UV-LED light source, and adopts a specially designed resin system and photoinitiator formula, so that the adhesive force and mechanical property of the coating are improved, the curing efficiency of the coating is improved, meanwhile, the coating also has good electrical insulation property, and the quality and efficiency of automobile coating are remarkably improved.

The invention relates to the technical field of defoaming agents, and discloses a modified organic silicon defoaming agent and a preparation method thereof.The modified organic silicon defoaming agent takes hydrogen-containing silicone oil as a base material, polyether modified carboxymethyl cellulose and modified white carbon black are used for modifying the base material to obtain the modified organic silicon defoaming agent, and after the white carbon black is modified, the modified organic silicon defoaming agent is prepared. According to the present invention, the polyether modified organic silicon is uniformly and stably distributed in the system so as to improve the defoaming efficiency, the carboxymethyl cellulose has characteristics of excellent thickening property, excellent film forming property and excellent stability, can improve the consistency of the organic silicon defoaming agent, can help to form the stable film layer, can easily adhere and disperse the active component of the defoaming agent, and can improve the defoaming effect; the surface property of the modified organic silicon is improved, the modified organic silicon has better hydrophilicity and wettability, the structural stability of the silicone oil is improved, all the components have a synergistic effect, and the prepared modified organic silicon has excellent defoaming and foam inhibiting effects, meanwhile, the dispersity is good, the heat resistance and stability are improved, and the application range is wide.

The invention discloses a defoaming agent for an oil field, and relates to the technical field of chemistry. The defoaming agent is prepared from the following materials in parts: 20 to 50 parts of polyether modified silicone oil, 10 to 30 parts of an organic silicon defoaming agent, 15 to 35 parts of polyoxyethylene fatty acid, 25 to 45 parts of polydimethylsiloxane emulsion, 5 to 15 parts of an emulsifier, 3 to 10 parts of a thickening agent, 2 to 8 parts of a dispersing agent, 0.5 to 3 parts of a pH regulator and 50 to 100 parts of deionized water. The invention further discloses a preparation method of the defoaming agent for the oil field. According to the defoaming agent and the preparation method thereof, the defoaming agent is prepared according to a specific proportion, uniform dispersion and stable compatibility of all the components are ensured through a scientific preparation technology, and therefore the defoaming agent is endowed with excellent defoaming and foam inhibiting performance, and the defoaming agent has good defoaming and foam inhibiting effects in the specific application process. The defoaming agent can quickly eliminate foams generated in the oilfield exploitation process, obviously reduce the influence of the foams on the oil well yield, reduce the exploitation cost and ensure the smooth operation of exploitation equipment.

The invention provides a high-temperature-resistant modified organic silicon defoaming agent as well as a preparation method and application thereof. The high-temperature-resistant modified organic silicon defoaming agent comprises the following components in parts by mass: 30-50 parts of organic silicon oil, 15-25 parts of modified organic silicon oil, 3-8 parts of an emulsifier, 2-5 parts of a surfactant, 3-6 parts of a thickening agent, 0.1-1 part of a preservative, 0.5-3 parts of silicon dioxide and 50-80 parts of deionized water. The high-temperature-resistant modified organic silicon defoaming agent prepared by using the components and content provided by the invention has good defoaming property and foam inhibition property at low temperature even if the content is relatively low, also has good defoaming property and foam inhibition property even if the temperature is relatively high, and compared with a defoaming agent in the prior art, the high-temperature-resistant modified organic silicon defoaming agent has the advantages that the defoaming property is good; the high-temperature-resistant modified organic silicon defoaming agent provided by the invention is still relatively high in defoaming property and foam inhibition property under the condition of relatively low content.

The invention relates to a developing device for processing an electronic component circuit board in the technical field of circuit board processing. The developing device comprises a developing mechanism and an intelligent signal processor, the developing mechanism comprises a mounting box body, a plurality of developing tanks arranged in the mounting box body, an ultrasonic generator, a heating plate, a bubble detector, an upper liquid level sensor, a lower liquid level sensor and a temperature sensor; the intelligent signal processor comprises a liquid level control module, a developing module and a floating foam cleaning module, immersion type developing can be achieved through the mechanisms, compared with spraying type developing, the immersion type developing can avoid the problem that production is delayed due to the fact that a nozzle is blocked due to the fact that developing liquid is used too many times, and through the arrangement of the mechanical foam breaker, the production efficiency is improved. The addition of a defoaming agent can be effectively reduced, the developing speed can be accelerated by the heating plate and the ultrasonic generator around the developing tank, and the intelligent regulation and control of the heating temperature and the ultrasonic power can be realized through the intelligent signal processor to realize the maximization of the production efficiency.

The invention discloses a diflufenican-containing compound and a processing technology thereof, and relates to the technical field of agriculture. The diflufenican-containing compound agent is prepared from the following components in percentage by mass: 10 to 20 percent of diflufenican, 8 to 12 percent of isoproturon, 8 to 12 percent of florasulam, 0.5 to 1 percent of an anti-freezing agent, 0.5 to 1 percent of a de-foaming agent, 1.5 to 2.5 percent of a cosolvent, 1 to 3 percent of a wetting agent, 0.5 to 1 percent of a preservative, 1.5 to 3.5 percent of a dispersing agent and the balance of water. The defoaming agent is prepared from butynediol diethoxy ether grafted with low-hydrogen polydimethylsiloxane, and the defoaming agent is prepared from the butynediol diethoxy ether grafted with low-hydrogen polydimethylsiloxane; the dispersing agent is prepared from polyether amine bridging modified sodium lignin sulfonate. The pesticide is loaded on the nano silicon dioxide, so that the pesticide has good release performance and stability, the utilization rate of the pesticide is improved, the nano pesticide is small in size, the pesticide can better permeate into plant tissues, and a better prevention and treatment effect is achieved.

The invention discloses an organic silicon composite solid defoaming agent for space station water treatment and a preparation method of the organic silicon composite solid defoaming agent, and relates to the technical field of defoaming agents. The organic silicon composite solid defoaming agent for space station water treatment comprises the following raw materials in parts by weight: 25-35 parts of polydimethylsiloxane, 5-10 parts of water-soluble silicone oil, 10-15 parts of white carbon black, 3-5 parts of an emulsifier, 3-4 parts of a dispersant and 25-35 parts of a carrier. The preparation method comprises the following steps: reacting 1H, 1H-perfluorohexylamine with epoxy chloropropane to generate an intermediate 1, reacting the intermediate 1 with lauryl amine to generate an intermediate 2, and reacting the intermediate 2 with amino-polyethylene glycol-carboxyl to obtain the emulsifier. The prepared organic silicon composite solid defoaming agent for space station water treatment has excellent defoaming and foam inhibition performance and good water dispersibility.

The invention relates to the technical field of water-based paint defoaming agents, in particular to a composite defoaming agent and a preparation method thereof.The composite defoaming agent is prepared by compounding the following raw materials: modified polysiloxane, an emulsifier, nano silicon dioxide, a defoaming auxiliary agent, other auxiliary agents, a cosolvent and water, and has better chemical stability and thermal stability; a stable defoaming effect can be kept in an alkaline environment; the defoaming aid is added for synergistic effect, liquid surface tension is changed, foam stability is reduced, new foam can be prevented from being generated, the thickening effect is achieved, the viscosity of the system is increased, the product is more stable, and the excellent effect is still achieved under the condition that the content of the modified polysiloxane and the defoaming aid in the system is low; and the addition amount of the emulsifier is reduced for mixed use. The composite defoaming agent can be used for eliminating foam of a water-containing system, is high in defoaming speed, excellent in dispersing performance, long in foam inhibition time, high in efficiency and low in dosage, and is particularly suitable for water-based paint in an alkaline environment.

The invention belongs to the technical field of drier preparation, and particularly relates to a dishwasher drier and a preparation method and application thereof. The dishwasher drier provided by the invention comprises fatty alcohol-polyoxyethylene ether, a fatty alcohol polyethylene / polypropylene ether copolymer, water-based fluorine-containing polyether siloxane, a polyacrylate modified polymer, sodium isooctanol sulfate, a chelating agent, a suspension stabilizer, a preservative and water. The stainless steel foam inhibitor is applied to an automatic dish-washing machine, and by introducing a modified silicone oil or fluorocarbon compound composite system, a combination of a high-molecular-weight polymer and a low-surface-tension regulator and a biocompatible defoaming agent, the drying performance of the stainless steel surface is remarkably improved, and the foam inhibition effect is optimized; foam generated by protein and an anionic surfactant is efficiently eliminated, meanwhile, environmental protection and sustainability are emphasized, and an efficient, clean and environment-friendly solution is brought to the automatic dish washing machine industry.

The underwater anti-dispersion additive is prepared from the following components in parts by weight: 30 to 50 parts of a water-resistant dispersing agent, 20 to 25 parts of a water reducing agent, 20 to 25 parts of a suspending agent, 5 to 10 parts of a plastic expanding agent, 25 to 30 parts of a coagulating agent, 40 to 60 parts of sodium carbonate and 25 to 30 parts of a de-foaming agent. The grouting material is composed of the following components in parts by weight: 1000 parts of PO425 ordinary Portland cement, 5-10 parts of an underwater anti-dispersion additive and 400 parts of water. The prepared anti-dispersion cement-based grouting material has the advantages of early strength, no shrinkage, slight expansion, impermeability and high durability, is suitable for the field of underground buildings, and has a wide application prospect.

A drilling fluid composition includes a base fluid; at least one additive selected from the group consisting of an anti-foaming agent, a fluid-loss additive, a viscosity modifier, a shale stabilizer, an alkali compound, a bridging agent, and a weighting agent; and 0.01 to 0.5 weight percentage (wt. %) of particles of steel slag, based on a total weight of the drilling fluid composition. A method for reducing a hydrogen sulfide (H2S) content of a H2S-containing subterranean formation. A process for removing H2S from a H2S-containing gas composition by the drilling fluid composition.

The utility model discloses sewage air flotation scum defoaming equipment, and relates to the field of sewage treatment. The utility model relates to sewage air flotation scum defoaming equipment, which comprises a defoaming tank, an air flotation tank, an air flotation tank, an air flotation tank, an air flotation tank, an air flotation tank, an air flotation tank, an air flotation tank, an air flotation tank, an air flotation tank and an air flotation tank, and is characterized in that a feeding hole is formed in the upper end of the defoaming tank; the rotating hollow pipe is vertically and rotatably connected to a central shaft in the defoaming tank; when the slag scraper is used for scraping air flotation scum into the slag pool, the air flotation scum can firstly enter the defoaming tank, then the rotating hollow pipe can be controlled to rotate, and then the rotating hollow pipe can automatically add a defoaming agent into the defoaming tank through the conveying assembly. Meanwhile, the rotating stirring rod can drive the stirring rod to rotate to stir the air flotation scum, so that the defoaming agent and the air flotation scum are uniformly mixed, the defoaming effect and the defoaming speed of the defoaming agent on foam in the air flotation scum are improved, the rotating stirring rod can scatter the foam, and the defoaming efficiency of the foam is further improved.

The invention provides a label adhesive tape without adhesive residues and a preparation method and application thereof, and belongs to the technical field of adhesive tapes, the preparation method comprises the following steps: uniformly mixing a waterborne polyurethane emulsion, functionalized polyurethane, a curing agent, a wetting dispersant, a thickening agent and a defoaming agent to obtain a polyurethane label adhesive; coating a polyurethane label adhesive on the base material layer, and curing to form a label adhesive layer; and compounding the protective layer on the label adhesive layer to obtain the label. Wherein the waterborne polyurethane emulsion is prepared by carrying out a reaction on polycarbonate ether polyol, 1, 5-naphthalene diisocyanate, tris (hydroxymethyl) aminomethane, glycerol, stannous octoate, triethylamine and water; the functionalized polyurethane is prepared by reacting sulfydryl grafted graphene, epoxy grafted polyurethane and triethylamine. The label adhesive tape prepared by the invention has good holding power, heat resistance and water resistance, and no adhesive residue exists.

The invention relates to a preparation method of a blocky solid defoaming agent, which comprises the following steps: premixing a defoaming active matter and an emulsifier, stirring and mixing with paraffin at a certain temperature, and cooling and molding the mixed material to obtain the blocky solid defoaming agent. Wherein the emulsifier can ensure that the defoaming active matter can be uniformly dissolved and dispersed in a foaming system, so that an excellent defoaming effect is achieved. Paraffin is relatively high in hydrophobicity, so that not only can the performance of the product be enhanced, but also the blocky product can be ensured to realize a long-term foam eliminating and inhibiting function in flowing foaming liquid.

The invention relates to the technical field of asphalt mixtures, and discloses a preparation method of a cold-mixed full-steel-slag asphalt mixture, which comprises the following preparation steps: 1) adding coarse steel slag and fine steel slag into an asphalt stirring pot according to parts by mass, and stirring to form mixed steel slag; 2) stirring and mixing the modified steel slag powder, polydimethylsiloxane, fly ash, hydrogen peroxide and the mixed steel slag in parts by mass to form a first part of mixture, and taking out the first part of mixture for later use; (3) stirring the emulsified asphalt, the water-borne epoxy resin, the water-borne curing agent and the defoaming agent in parts by mass to form a secondary mixture; 4) stirring and mixing the first part of mixture and the second part of mixture, then adding the modified steel slag powder, and stirring and mixing to form a cold-mixed full-steel-slag asphalt mixture; through specific preparation steps and material proportioning, the performance of the cold-mixed full-steel-slag asphalt mixture is comprehensively optimized, and the construction workability, durability, fatigue resistance and water damage resistance are improved.

The present disclosure provides a unit dose product comprising a pouch formed from a water-soluble film material and a detergent composition disposed within the pouch. The detergent composition comprises about 5 to about 25 wt % water, about 20 to about 40 wt % of at least one surfactant, about 35 to about 55 wt % non-aqueous solvent comprising polyethylene glycol and glycerin, and at least one enzyme. A pack height of the unit dose does not decrease by more than about 30% over a temperature range of 0° F. to 125° F., and a Zein score of the detergent composition is not more than about 1.5% dissolved zein when tested on a 3% dilution. The composition can further comprise additional components, such as base, performance polymer, an anti-redeposition agent, a defoamer, a bleaching agent, a bleach activator, a chelating agent, an optical brightener, a bitterant, a corrosion inhibitor, or any combination thereof.

The invention discloses a fast defoaming powder defoaming agent and a preparation method thereof, and relates to the technical field of defoaming agents. The powder defoaming agent is prepared from the following raw materials in parts by weight: 30 to 40 parts of polyether modified silicone oil, 2 to 5 parts of organic silicon emulsion, 3 to 6 parts of dispersing agent, 4 to 6 parts of emulsifying agent, 1 to 2 parts of thickening agent and 50 to 70 parts of porous carrier. The powder defoaming agent prepared by the invention has good defoaming and foam-inhibiting performance, dispersing performance and thermal stability.

The invention discloses an antiviral water-based paint for an interior wall and a preparation method thereof, and belongs to the technical field of water-based paints. The antiviral water paint is used for solving the technical problem that in the prior art, the antiviral performance, the antibacterial performance and the moisture resistance of an antiviral coating need to be further improved. Comprising the following components in parts by weight: 90 to 105 parts of antibacterial and antiviral emulsion, 1.0 to 1.3 parts of dispersing agent, 0.5 to 0.8 part of wetting agent, 0.6 to 1.0 part of defoaming agent, 1.2 to 1.5 parts of thickening agent and 20 to 25 parts of activated filler. The antibacterial agent, modified zinc oxide and the acrylic monomer are prepared into the antibacterial and antiviral emulsion in a free radical polymerization mode in the polysiloxane silicon emulsion containing the multi-element olefin, and the antibacterial and antiviral emulsion is matched with the activated filler, so that the storage stability of the water-based paint is effectively improved, and the service life of the water-based paint is prolonged. And the moisture resistance, scrubbing resistance, long-acting antibacterial property and antiviral property of a water-based paint film are also improved.

The invention relates to a high-performance concrete admixture composition for a wind power tower drum and a preparation method of the high-performance concrete admixture composition, and relates to the field of concrete admixtures. The water reducing agent is prepared from the following components in parts by weight: 35 to 45 parts of a shrinkage reducing type polycarboxylic acid water reducing agent, 8 to 12 parts of methoxy polyethylene glycol acrylate modified nano silicon dioxide, 1.5 to 2.5 parts of sodium dodecyl polyoxyethylene ether sulfonate, 0.8 to 1.5 parts of coconut oil diethanolamide, 0.3 to 0.8 part of sodium polyacrylate, 0.2 to 0.6 part of ammonium tripolyphosphate, 0.05 to 0.15 part of a polyether defoaming agent and 40 to 50 parts of water. According to the invention, the hydration process of the concrete is regulated and controlled through the synergistic interaction among various additives, the pore structure in the concrete is optimized, and an interface transition region is strengthened, so that the systematic improvement of the microstructure of the concrete is realized, and the strength and durability of the concrete are remarkably improved.

The present application discloses a kind of dispersing fast, low turbidity, high temperature and high pressure resistant, strong acid and strong alkali defoaming agent, which is prepared from the following components: 5-50% of white carbon black silica paste, 1-25% of capped polyether modified polysiloxane, 0.1-10% of spherical poly siesquioxane, 1-25% of compound polyether, 0.1-10% of thickening agent, 0.05-0.5% of sterilizing agent, and the balance of water, wherein the sum of the weight percentages of the components is 100%. The present application also provides a production process of the defoaming agent, which comprises the following steps: stirring the white carbon black silica paste, spherical poly siesquioxane and capped polyether modified polysiloxane with a homogenizer to mix them thoroughly, then adding the compound polyether, thickening agent and sterilizing agent, stirring them uniformly, and continuing to stir them rapidly with the homogenizer for 25-35 minutes to obtain the mixed uniform polyether modified polysiloxane defoaming agent. The purpose of the present application is to provide a defoaming agent with fast dispersion speed, low turbidity, high temperature and high pressure resistance, and strong acid and strong alkali resistance.

The utility model discloses a foam driving device for a sewage treatment tank, which comprises a base, a sewage treatment tank is arranged on one side of the base, a side frame body is arranged at the center of the top end of the base, a first rotary driving part is mounted on the outer wall of the lower end of one side, close to the sewage treatment tank, of the side frame body, and a screw rod is arranged at the top end of the first rotary driving part. A nut pair is installed on the outer wall of the upper end of the lead screw in a threaded mode, a side connecting plate is arranged on the outer wall of the side, away from the side frame body, of the nut pair, a first telescopic driving part is installed on the outer wall of the side, away from the side frame body, of the side connecting plate, a linkage frame is arranged at the end, away from the side connecting plate, of the first telescopic driving part, and an L-shaped driving plate is arranged at the bottom end of the linkage frame. The device not only achieves the purpose of defoaming sewage in the sewage treatment tank by adding a defoaming agent in an auxiliary manner so as to reduce the breeding rate of foams in the sewage, but also improves the solvation efficiency of the defoaming agent and the sewage, and achieves the purpose of automatically eliminating the foams in the sewage in the sewage treatment tank.

The invention discloses a defoaming agent for industrial automobile paint and a preparation method of the defoaming agent. The defoaming agent is prepared from the following raw materials in parts by mass: 20-40 parts of a star block polyether-siloxane copolymer; 10 to 25 parts of nano hydrophobic silicon dioxide aerogel; 30-70 parts of an alkylbenzene solvent (boiling point gt: 200 DEG C); 3 to 8 parts of epoxy group modified polyether siloxane; and 1 to 3 parts of polyether modified polydimethylsiloxane. The molecular weight range of the star block polyether-siloxane copolymer can effectively balance the defoaming property and compatibility, the siloxane chain segment of the star block polyether-siloxane copolymer destroys the elasticity of a foam film, and the siloxane chain segment cooperates with alkylbenzene to reduce local surface tension and accelerate foam rupture. The polyether chain segment and the siloxane chain segment have a synergistic effect, and the polyether chain segment adjusts hydrophilicity to adapt to different environments.

The invention belongs to the technical field of underwater construction materials, and particularly relates to a self-leveling anti-dispersion underwater bottom sealing material and a preparation method thereof. The self-leveling anti-dispersion underwater bottom sealing material disclosed by the invention is prepared from the following components in parts by weight: 530 to 730 parts of sulphoaluminate cement, 77 to 277 parts of ordinary Portland cement, 84 to 126 parts of fly ash, 870 to 950 parts of fine aggregate, 250 to 278 parts of water, 18 to 23 parts of a water reducing agent, 6 to 10 parts of a flocculating agent, 8 to 12 parts of a retarder, 0.9 to 1.4 parts of a de-foaming agent and 0.1 to 0.4 part of an early strength agent. The self-leveling dispersion-resistant underwater bottom sealing material disclosed by the invention has good fluidity and dispersion resistance.

The utility model relates to the technical field of yellow rice wine production, in particular to a yellow rice wine pre-fermentation defoamer. The technical problems that a common yellow rice wine pre-fermentation device lacks a defoaming structure, foam cannot be treated in the yellow rice wine pre-fermentation process, a large amount of foam is generated by saccharified mash dextrin, and mash overflows out of a tank in a spraying mode are easily caused are solved. According to the technical scheme, the yellow rice wine pre-fermentation defoaming device comprises a tank body. According to the utility model, the air supply defoaming assembly is matched with the rotary driving assembly, so that bubbles generated by mash can be eliminated in the pre-fermentation process of the yellow wine, and mash bubbles are prevented from overflowing in the pre-fermentation process of the yellow wine, thereby solving the problems that a common yellow wine pre-fermentation device is short of a defoaming structure, and the production cost is low. The problems that foams cannot be treated in the pre-fermentation process of the yellow rice wine, a large amount of foams are generated by saccharified mash dextrin, and mash overflows out of a tank in a spraying manner are solved.

The invention discloses a highly efficient heat-conductive new energy vehicle coolant and a preparation method thereof, wherein the components include a base liquid having a mass volume ratio of 500-1000 mL: 2-10 mL: 0.03-0.5 g: 5-10 g: 5-10 g: 0.02-0.1 g: 1-10 g, a suspension of silane-modified nano-alumina having a mass concentration of 1-5%, a defoamer, a corrosion inhibitor, a rust inhibitor, a scale inhibitor and an inhibitory additive, and the pH of the coolant is regulated to 7.5-8.5 by an alkali metal hydroxide. The formula system of the coolant of the present invention achieves the advantages of high thermal conductivity and good metal corrosion resistance based on the synergistic effect of each component, and can be used in the fields of new energy vehicles, energy storage power stations, etc. Therefore, it has a good prospect for application and promotion.