41 results about "Defoamer" patented technology

This invention discloses a silicone emulsion defoamer for textiles and its preparation method. It is prepared from the following components by weight percentage: 5%-40% polysiloxane silicone paste, 0.3%-20% silicone polyether, 1%-20% emulsifier, 0.1%-5% thickener, 0.05%-0.3% bactericide, and the balance being water, with the sum of the weight percentages of all components being 100%. The stability of the emulsion under high temperature and high pressure environments is improved by using cross-linked polysiloxane silicone paste and silicone polyether with a specific structure. The cross-linked polysiloxane silicone paste provides superior defoaming and foam-suppressing performance. Utilizing the intertwined spatial structure of the high-viscosity silicone composition and the silicone polyether, the defoamer prepared by this method not only exhibits good stability under high temperature and alkaline environments but also significantly improves its late-stage foam-suppressing performance in sizing. More importantly, it enhances the compatibility between the silicone emulsion defoamer and the sizing.

This invention relates to the field of cleaning agent technology, particularly to IPC C23G1, and more specifically to a neutral flow enhancer and its preparation method specifically for the production of aluminum cans. This invention, by adding bactericides, organic acids, pH adjusters, surfactants, auxiliary wetting agents, silicone defoamers, and deionized water, yields a neutral flow enhancer that improves drying efficiency, reduces energy consumption, and contributes to improved efficiency in subsequent printing processes.

This invention discloses a low-conductivity coolant for microchannel water-cooled plates and its application. The coolant, by mass fraction, comprises 85-95% propylene glycol, 1-5% deionized water, 0.05-0.15% imidazole, 0.1-0.3% toluenetriazole, 0.10-0.4% sebacic acid, 0.1-0.3% benzoic acid, 3-4% triethanolamine, and 0-0.06% defoamer. The coolant is stirred evenly with deionized water, and the resulting mixture is placed in the micron-level fluid channels inside the microchannel water-cooled plate. The high-speed flow of the mixture absorbs the heat dissipated by the chip. The coolant prepared by this invention exhibits low corrosivity, high reserve alkalinity, low foaming tendency, and low conductivity. This coolant can be used safely and efficiently in microchannel structures, meeting the growing heat dissipation needs of AI big data computing centers.

This invention discloses a high-efficiency separation method for gypsum in calcium-based desulfurization based on slurry density control, relating to the field of industrial flue gas purification. The method includes: S1, real-time monitoring of the density of the gypsum slurry in the calcium-based desulfurization system, which is about to be transported to the first-stage hydrocyclone for solid-liquid separation; S2, obtaining a target addition ratio based on a preset dynamic correlation model between slurry density and defoamer addition ratio, and adding defoamer to the gypsum slurry in real-time according to the target addition ratio; S3, transporting the gypsum slurry with added defoamer to the first-stage hydrocyclone for solid-liquid separation. This method achieves precise foam suppression through dynamic control, creating an excellent separation environment for the hydrocyclone, enabling efficient separation of gypsum crystals. Simultaneously, it achieves on-demand distribution of defoamer, reducing the total amount of reagent consumed while ensuring effectiveness and saving operating costs.

This invention relates to a fully synthetic aluminum alloy cutting fluid. By weight, the fully synthetic aluminum alloy cutting fluid comprises the following components: a) 5-15 parts of organic acid; b) 10-20 parts of organic alcohol amine; c) 2-11 parts of self-emulsifying ester; d) 0.2-5 parts of corrosion inhibitor; e) 0-3 parts of bactericide; f) 0-0.1 parts of defoamer; h) 52-82 parts of water; wherein the self-emulsifying ester is a reaction product of a second organic acid, a polyol, and a polyether, and the molar ratio of the second organic acid, the polyol, and the polyether is 1:(0.6-1):(0.6-1). The cutting fluid of this invention, through the rational combination of its components and the addition of a specific self-emulsifying ester, can effectively improve the lubricity of water-based cutting fluids while maintaining excellent low-foaming properties. This invention also relates to a method for preparing the fully synthetic aluminum alloy cutting fluid and its applications.

This invention relates to the field of low-temperature fermentation technology for food seasonings, specifically to a low-temperature fermentation preparation device and process for an antioxidant seafood-flavored compound seasoning rich in natural astaxanthin. The device includes a stirring mechanism mounted on the central axis of the tank and a defoamer mounted on one side of the tank's top cover. The inner wall of the tank is interspersed with inner liners, forming a low-temperature space through which cold air can circulate. The gentle stirring of the stirring mechanism reduces foam generation, and the defoamer collects and separates the foam from the liquid. This invention features a stirring mechanism on the central axis of the tank, composed of several staggered stirring rods, creating a multi-layered stirring flow field of different diameters during rotation. Simultaneously, layered blocks with a thicker middle and blade-shaped ends are spaced on the stirring rods, achieving gentle mixing by cutting through the material during low-speed rotation to create a laminar flow gradient. This avoids damage to the mycelium and astaxanthin caused by shearing and stirring, and effectively reduces the initial amount of foam generated.

This invention relates to a rust-preventive, degreasing, and sludge-removing water-based cleaning agent and its preparation method, belonging to the field of metal surface cleaning technology. This invention aims to solve the problems of low efficiency in removing old sludge from existing water-based cleaning agents, easy rust re-emergence in cleaned metals, and the inability of a single product to simultaneously address cleaning and rust prevention. It consists of the following components by weight percentage: 2%-7% fatty alcohol polyoxyethylene ether (AEO-9), 2%-5% oil stain remover, 3%-10% emulsifier, 3%-12% rust and corrosion inhibitor, 10%-20% alkaline additive, 2%-6% solubilizer, 0.05%-0.15% defoamer, and the balance being deionized water. This invention is suitable for surface cleaning of various metal materials such as carbon steel, cast iron, and stainless steel, and can meet the cleaning and rust prevention needs of various industrial equipment such as machine tools, injection molding machines, engines, and hardware accessories.

The application discloses synthesis of a defoaming agent with excellent defoaming performance, and relates to the field of defoaming agents. The defoaming agent with excellent defoaming performance comprises 23-35 parts of polyether, 12-20 parts of modified nano silicon dioxide, 5-15 parts of a composite emulsifier, 5-13 parts of hydrophobic particles and 25-35 parts of a solvent. The polyether comprises a fatty alcohol modified polyether and an organic silane modified polyether, and the weight ratio of the two is 1:(1.3-2.5). Through synergistic effect of the two, the problem of weak defoaming performance and low foam inhibition capacity when the two are used alone can be solved. The composite emulsifier comprises a fatty acid sucrose ester, a polyethylene glycol bislaurate and Tween 80, and the weight ratio of the three is 1:(1.3-1.5):(1.5-1.9). The defoaming agent has good dispersibility and storage stability. The defoaming agent provided by the application has the effects of strong defoaming performance, rapid bubble breaking and long foam inhibition time.

The utility model relates to the technical field of foam scrubbing, in particular to an intelligent foam scrubbing system. The system comprises a filling pry, a stirring barrel, a stock solution barrel, a water tank and a controller, the stirring barrel is provided with an electric stirrer, the stirring barrel comprises a foaming stirring barrel and a defoaming stirring barrel, the foaming stirring barrel and the defoaming stirring barrel are respectively filled with a foaming agent and a defoaming agent, the stock solution barrel comprises a foaming stock solution barrel and a defoaming stock solution barrel, a solution inlet of the foaming stirring barrel is respectively communicated with the foaming stock solution barrel and the water tank, and a solution outlet of the defoaming stock solution barrel is communicated with the water tank. A liquid inlet of the defoaming stirring barrel is communicated with the defoaming stock solution barrel and the water tank, the water tank pumps liquid into the stirring barrel through a water pump, the foaming stirring barrel is communicated with a well inlet pipeline, the defoaming stirring barrel is communicated with a well outlet pipeline or a wellhead device, the filling pry is used for driving fluid in the stirring barrel to be discharged, and the filling amount is adjustable. And the electric stirrer, the magnetic pump and the filling pry are electrically connected with the controller. The embodiment of the utility model provides an intelligent foam drainage system which can efficiently carry out foam drainage work.

This invention discloses a metal surface rust inhibitor, comprising the following raw materials by mass percentage: deionized water: 80%–90%; organic polyol amine corrosion inhibitor: 6%–16%; heterocyclic high-efficiency corrosion inhibitor: 0.5%–3%; water-based film-forming agent: 2%–7%; nonionic low-foaming surfactant: 0.2%–1.5%; pH adjuster: 0.3%–1.5%; defoamer: 0.05%–0.3%. This invention is completely non-toxic and environmentally friendly, free of nitrites, chromium, nickel, phosphorus, and heavy metals, meeting environmental emission standards. It has a low odor, is easy to clean, non-greasy, and does not affect coating, phosphating, or assembly. It provides long-lasting rust prevention, forms a dense film with strong adhesion, significantly extends the rust prevention period, and is suitable for multiple metals, exhibiting no corrosion to carbon steel, cast iron, galvanized steel, and stainless steel. It has excellent rust prevention performance, is easy to apply, and can be applied by immersion, spraying, or brushing at room temperature, with fast drying.

Selective etchant compositions for reducing foam and related methods are provided herein. The composition may comprise a phosphoric acid; an inhibitor; and 0.01% to 5% by weight of a defoaming agent based on a total weight of the composition. The defoaming agent may comprise at least one of an alkyl carbamate compound, a bicarbonate compound, a sulfuric acid compound, or any combination thereof.

The invention discloses a ceramic glaze for painting and a preparation method thereof, and relates to the technical field of ceramic glazes, the ceramic glaze comprises the following raw materials: a basic glaze, a pigment, a fluidity regulator, a color stabilizer, a fluxing agent, a defoaming agent, a binder, a core functional group and an auxiliary synergistic component; the core functional component is prepared by compounding nano hydroxyapatite, polyether modified polysiloxane, rare earth oxide, nano silicon nitride and diethylene glycol monobutyl ether according to the mass ratio of (3 to 8): (1 to 3): (2 to 6): (2 to 5): (3 to 7); the auxiliary synergistic component is prepared by compounding sodium citrate, spodumene powder, metakaolin and sodium pyrophosphate according to the mass ratio of (0.2 to 0.5): (2 to 5): (3 to 6): (0.1 to 0.3). The ceramic glaze is high in color rendition degree, good in painting fluency, low in glaze defect rate and excellent in thermal stability.

This invention relates to a water-soluble cutting fluid for drilling aluminum alloys, comprising, by weight percentage: 3-4% monoethanolamine, 8-12% triethanolamine, 4-6% diethanolamine, 4-7% carboxylic acid system, 6-8% high PO content low-foaming polyether ester, 2-3% glycerol, 2-3% anti-hard water agent, 2-3% neodecanoic acid, 1-2% bactericide, 0.15-0.20% polyether modified silicone oil defoamer, 0.10-0.15% polyether defoamer (GPE-3000), 0.05-0.1% hydrophobic fumed silica, 0.5-1.0% non-foaming corrosion inhibitor, 0.2-0.3% methylbenzotriazole (TTA), 0.3-0.5% dodecenyl succinic acid, 0.5-1.0% polyol phosphate ester (PAPE), 2-3% borate ester, 0.2-0.3% disodium EDTA, and a certain amount of deionized water. This invention also relates to a method for preparing a water-soluble cutting fluid for drilling aluminum alloys. This invention has the following advantages: it achieves root-cause suppression and long-lasting defoaming, while simultaneously inhibiting corrosion and discoloration of aluminum alloys and preventing rust on ferrous metals. It is suitable for the actual production needs of aluminum alloy drilling enterprises, has strong practicality, and has broad application value.

This invention provides a method for reducing foam during L-tyrosine fermentation. By adding an appropriate amount of L-tyrosine seed crystals during the initial stage of L-tyrosine crystallization, when a large amount of foam is generated during fermentation, the crystals are enlarged, accelerating the crystallization rate. Simultaneously, ultrasonic-assisted crystallization is used to further enlarge the crystals and optimize their crystal form, thereby reducing excessive foaming during fermentation caused by L-tyrosine crystallization. This method solves the problem of severe foaming in the fermentation broth due to small crystals during L-tyrosine fermentation. It also reduces the consumption of defoaming agents (the effective component of which is a surfactant), avoiding the negative impacts of excessive surfactant use during cell growth, and has significant application value.

Lubricating compositions are described, the lubricating compositions comprising a base oil component and an additive component, wherein the additive component comprises a non-silicone anti-foaming agent.

The utility model relates to fermentation tank technical field, concretely relates to prevent foam overflow fermentation device, including fermentation tank, be equipped with the stirring shaft in the fermentation tank, be equipped with the stirring vane on the stirring shaft, the upper portion fixed of stirring shaft is equipped with the feeding spiral piece, and the feeding spiral piece is the netted structure, and is equipped with a plurality of meshes on it, and the top of fermentation tank is equipped with the foam collecting tube and the cyclone, and the bottom of foam collecting tube and cyclone bottom export links up with the inner chamber of fermentation tank respectively, and the top export of foam collecting tube connects venturi jet device negative pressure mouth, and the inlet of venturi jet device connects sterile gas pipe, and the export of venturi jet device connects cyclone inlet, and the top export of cyclone connects the gas holder through drying filter, and the gas outlet of gas holder connects the inlet of oil -free compressor, and the inlet of oil -free compressor still connects the gas cylinder, and the outlet of oil -free compressor connects the inlet of buffer tank, and the outlet of buffer tank connects sterile gas pipe through the bacterium -removing filter and check valve in proper order. The utility model does not need defoaming agent, and the foam is collected and eliminated in the aseptic environment efficiently.

The present application relates to the field of high-temperature-resistant environment-friendly defoaming agent, and particularly relates to a high-temperature-resistant environment-friendly defoaming agent and a preparation method thereof, which are used to solve the technical problems of poor high-temperature resistance, high-temperature easy emulsion breaking and layering, weak defoaming and bubble suppressing effect and insufficient environmental protection of traditional organic silicon defoaming agent; the high-temperature-resistant environment-friendly defoaming agent is prepared by mixing phenyl-polyether-epoxy three-modified polysiloxane and modified hydrophobic fumed silica to form high-temperature silicon paste, then mixing composite emulsifier, glycerol and deionized water to form water phase, dropping the high-temperature silicon paste into the water phase to obtain pre-emulsion, adding xanthan gum to thicken and stabilize the pre-emulsion, and filtering to obtain the high-temperature-resistant environment-friendly defoaming agent; the defoaming agent has the advantages of high-temperature resistance, strong stability, long-lasting defoaming and bubble suppressing, environmental protection and no APEO, and has wide application range and is not easy to emulsion break and oil float.

To provide a defoaming machine that can efficiently eliminate foam. [Solution] The defoaming machine 100 eliminates foam generated on the liquid surface by the rotation of a defoaming blade 1. The defoaming blade 1 is provided with a foam flow path having an inlet 3 into which foam flows in by rotation and an outlet 4 into which the defoamed liquid is discharged. There is a portion between the inlet 3 and the outlet 4 in which the cross-sectional area of ​​the flow path is reduced, and the inlet 3 and the outlet 4 are opposite each other in the tangential direction of rotation.

This invention discloses an defoamer for produced water from natural gas wells and its preparation method, relating to the field of oil and gas field water treatment technology. The defoamer comprises modified organosilicon, modified hydrogenated rosin glycerol ester, modified alkyl glycoside, potassium pyrophosphate, polyethylene glycol monooleate, plant-based dicarboxylic acid ester, and deionized water. The modified organosilicon is obtained by grafting polydimethylsiloxane with terminal hydroxyl polyether and then modifying it with low-carbon carboxylic anhydride. The modified hydrogenated rosin glycerol ester is obtained by esterifying hydrogenated rosin with glycerol and then modifying it with polyoxyethylene branching. The modified alkyl glycoside is obtained by etherification and condensation of alkyl glycoside with small-molecule polyol and then modifying it with weak phosphonate. This invention addresses the complex conditions of high-altitude gas fields, characterized by high temperature, low pressure, high fine silica particles, and high humic content. It solves the problems of existing defoamers, such as easy solidification and stratification at low temperatures, poor fluidity, decreased activity, easy clogging of pipelines, and difficulty in breaking complex foams, making it suitable for the complex conditions of high-altitude gas fields.

This invention discloses a synergistic intelligent control device, system, and method for phosphate ester fire-resistant oil, comprising a multi-parameter online monitoring module, a multi-stage synergistic degassing and defoaming treatment module, an intelligent control module, and an adaptive additive injection module. The intelligent control module is connected to the multi-stage synergistic degassing and defoaming treatment module, which receives signal feedback from the EH (Energy Harness) tank. The adaptive additive injection module also receives signal feedback from the EH tank. The multi-parameter online monitoring module uses optical scattering to detect the bubble size distribution and air content in the oil in real time. The intelligent control module establishes a predictive model for air release value and foam characteristics based on a deep learning algorithm, achieving adaptive optimization of treatment parameters. The adaptive additive injection module dynamically injects a modified polyacrylate-porous silica-based composite defoamer according to the oil state. This invention solves the problem in existing technologies where air release value and foam characteristics are difficult to meet simultaneously, achieving precise online control of the quality of phosphate ester fire-resistant oil.

This invention discloses a high-solids, ultra-weather-resistant acrylic polyurethane topcoat and its preparation method. The topcoat consists of component A and component B, with a mass ratio of component A to component B of 20:(2-5). Component A includes the following components by mass: 30-45 parts acrylic resin; 2-10 parts modified resin; 2-10 parts hyperbranched polyester polyol; 25-40 parts pigments and fillers; 0-1.5 parts thixotropic agent; 0.1-10 parts dispersant; 0.1-0.5 parts defoamer; 0.01-1 part drier; and 1-10 parts mixed solvent. Component B includes the following components by mass: 70-95 parts aliphatic isocyanate polymer; 2-15 parts xylene; and 2-15 parts propylene glycol methyl ether acetate. The coating of this invention exhibits excellent weather resistance, comparable to ultra-weather-resistant fluorocarbon topcoats and polysiloxane topcoats, and possesses high mechanical strength and corrosion resistance, making it particularly suitable for coating steel structures in the South China Sea environment.

This invention discloses a high-efficiency defoamer and defoaming agent for silicone rubber, its preparation method, and its application. The defoamer is a polyether-polysiloxane block copolymer with an A-B-A structure, wherein the polysiloxane intermediate block provides low surface tension for rapid foam breaking, and a specific ratio of polyether end blocks promotes the migration of active ingredients to the bubble interface and achieves long-lasting foam suppression by adjusting the appropriate compatibility with the silicone rubber matrix. This invention also provides a hydrosilylation preparation method for this defoamer and its application in addition-type and condensation-type silicone rubbers. This defoamer has the advantages of fast defoaming speed, long foam suppression time, good compatibility with silicone rubber, and no impact on vulcanization or transparency.

The present application belongs to the technical field of defoaming agents, and relates to a defoaming agent for pesticide suspensions, a preparation method and application thereof. The defoaming agent for pesticide suspensions has polyether long side chains, and the polyether long side chains are one or more than one; all the polyether long side chains are connected to a starter through C-O bonds or C-N bonds at the end of ethylene oxide structure units; and the other end of the polyether long side chains is grafted with heptamethyltrisiloxane. By controlling the ratio of EO units and PO units in the polyether branched chain, the defoaming agent can maintain the most suitable hydrophilic-lipophilic balance value, and can be more quickly adsorbed on the surface of the foam for defoaming. The defoaming agent is grafted with heptamethyltrisiloxane, the heptamethyltrisiloxane grafting increases the branched structure of the defoaming agent, and simultaneously reduces the surface tension, so that the defoaming agent molecules have higher water solubility and surface activity, and the application range of the defoaming agent is wider, and the defoaming rate is faster.

The application discloses a kind of high-efficiency defoaming agent and its preparation method and application, it is related to fine chemical technology field.The high-efficiency defoaming agent contains higher alcohol, the carbon number of above-mentioned higher alcohol is 31~45;And, modified organosilicon, above-mentioned modified organosilicon is prepared by chemical modification to low hydrogen-containing silicone oil by silane addition reaction to cypressene alcohol;The conversion rate of above-mentioned silane addition reaction is >93.5%.The high-efficiency defoaming agent provided by the application has better defoaming and bubble inhibition capacity, and the defoaming, bubble inhibition active effect time is longer, and the defoaming agent stability is higher, while more obvious inhibition wastewater aerobic activated sludge tank's foaming trend, with wide application range.