43results about How to "Strong anti-foaming ability" patented technology

The invention discloses an aqueous emulsion non-silicon defoamer and a preparation method thereof. The defoamer consists of a material with defoaming activity, an emulsifying material and a dispersion medium, wherein the material with defoaming activity consist of alkynol, higher aliphatic alcohol and glyceryl polyether; the emulsifying material consists of anionic emulsifier and non-ionic emulsifier; and the dispersion medium consists of water and glycol. The defoamer of the invention has excellent defoaming and anti-foaming functions and high wettability and stability and is particular suitable for water-based paint, oil ink and other systems.

The invention discloses an organosilicon defoamer with a bactericidal action. The organosilicon defoamer is prepared from the following raw materials in parts by weight: 40-60 parts of simethicone, 20-30 parts of silicon dioxide, 0.3-0.5 part of stearamide, 0.3-0.5 part of potassium iodide, 0.3-0.5 part of sodium carbonate, 0.4-0.6 part of tributyl phosphate, 4-6 parts of clinoptilolite powder, 0.3-0.4 part of sodium tripolyphosphate, 0.3-0.5 part of mannitol, 2-3 parts of common salt, 0.3-0.6 part of barium stearate, 1-3 parts of glycerine, 0.4-0.6 part of copper sulfate, 0.5-0.7 part of activated carbon and 10-20 parts of water.

The invention discloses an exterior wall fluorocarbon paint. The exterior wall fluorocarbon paint comprises, by weight, 35-45 parts of aqueous fluorocarbon resin, 1-2 parts of a film forming assistant, 1-1.5 parts of diethylene diamine, 0.5-1 part of a thickener, 0.1-0.3 parts of a pH adjusting agent, 0.5-1 part of a dispersant, 10-16 parts of titanium dioxide, 5-10 parts of cellulose acetate pulp, 3-5 parts of butyl acetate, 0.5-1 part of an antiseptic, 3-4 parts of an antifoaming agent and 20-30 parts of pure water. The exterior wall fluorocarbon paint has strong crack resistance.

The invention discloses a special defoaming agent for a high-interface fluorocarbon resin emulsion. The special defoaming agent is characterized in that the special defoaming agent comprises the following components in percentage by mass: 3-10% of fluorine-containing polyether modified polysiloxane, 2-7% of white carbon black, 40-60% of methylsilicone oil, 0.27-0.45% of a thickener, 0.22-0.33% of polyoxyethylene ether, 0.016-0.21% of cellulose and 30-45% of water. The special defoaming agent disclosed by the invention has the advantages of strong defoaming and foam-inhibiting efficacy, low surface tension, no volatility, excellent thermal stability and good compatibility with the fluorocarbon resin emulsion, and can effectively solve the problem that the fluorocarbon resin emulsion is liable to foaming in construction process.

The invention discloses an antifoaming agent containing organosilicone modified castor oil for PVA (Polyvinyl Alcohol) production and a preparation method of the antifoaming agent and belongs to the field of organosilicone modified antifoaming agents. The preparation method comprises the following steps: carrying out an addition reaction between hydrogen containing silicone oil and castor oil in an N2 protective catalyst system so as to obtain an organosilicone modified castor oil antifoaming agent active matter; and by utilizing the modified antifoaming agent active matter as well as microcrystalline wax, monoglyceride, isooctyl stearate, an emulsifier, a thickening agent and a carrier, thereby obtaining the antifoaming agent containing organosilicone modified castor oil. The antifoamingagent containing organosilicone modified castor oil produced according to the method disclosed by the invention is applied to eliminating foam produced in PVA production, has tiny negative effects onadhesiveness of slurry and mechanical property of slurry membranes, and has the characteristics of being small in dose, high in antifoaming speed, high in foam inhibition ability, nontoxic, harmless,simple in process and the like.

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 an organic silicon defoaming agent with an anti-cracking function. The defoaming agent is prepared from, by weight, 40-70 parts of simethicone, 20-30 parts of silicon dioxide, 10-20 parts of water, 1-2 parts of acrylic acid emulsion, 0.3-0.5 part of potassium iodide, 0.2-0.4 part of prenyl alcohol, 0.5-1 part of oxidized polyethlene wax, 0.3-0.5 part of kerosene, 0.4-0.8 part of tributyl citrate, 2-4 parts of calcium stearate, 0.4-0.8 part of nonylphenol polyoxyethylene ether, 2-4 parts of bentonite, 1-2 parts of stearamide, 1-2 parts of fatty acid and 0.2-0.4 part of butyl stearate.

The invention discloses a latex cement defoaming agent and a preparation method thereof. The latex cement defoaming agent is prepared from the following components by mass percentage: 10-20% of dimethicone, 5-10% of oleic acid, 5-10% of isooctyl alcohol, 5-10% of tributyl phosphate, 3-6% of a suspension stabilizer, 4-8% of a composite emulsifier and the balance water. The composite emulsifier is a mixture of ester and ether, and after mixing, the theoretical HLB value of the emulsifier is 12.0-14.0. The preparation method of the latex cement defoaming agent consists of: firstly mixing the raw materials except the suspension stabilizer at 70-80DEG C, then adding the suspension stabilizer, further conducting constant temperature stirring for 10-60min, and performing discharging under stirring, thus obtaining the product. The latex cement defoaming agent does not undergo chemical reaction with other admixtures, can significantly increase the compressive strength of conventional density cement stones and low density cement stones, and also can increase the fluidity of cement slurry.

The invention relates to a defoaming agent suitable for polymer cement waterproof mortar and a preparation method thereof. The adaptability of the existing defoaming agent and the polymer cement-basedmortarareis poor in adaptabilityto the polymer cement-based mortar, so that thelikely to cause defects such as sinkhole, micro cracksof the mortar are easily causedsuch as sinkhole, micro cracks andthe like, andlikely to cause the decrease of mechanical performance and waterproof performance of the mortarare further easilycaused. The organic silicone defoaming agent is modified by virtue of acrylate monomers, so that the defoaming agent is better suitable for the alkaline condition of the polymer cement-based mortar, and the compatibility between the polymer cement-based mortar and the defoaming agent can be effectively optimized; and moreover, the defoaming agent is small in solubility and good in laying performance, high in foam inhibiting and foam eliminating performance, and capableof significantly improving the defoaming efficiency. Meanwhile, the defoaming agent is stable in performance, easy in storage and transportation and wide in application prospect.

The invention discloses a preparation method of a defoaming agent with good stability. The preparation method comprises the following steps: (1), preparing a defoaming functional auxiliary agent; (2),weighing raw materials for use; (3), preparing a finished product. The preparation method of the defoaming agent is improved; the preparation method is reasonable in coordination of the steps and convenient to popularize and apply; the prepared defoaming agent is rapid in defoaming, strong in foam-inhibiting ability, stable in using quality, good in comprehensive characteristics and very high inmarket competitiveness and production benefits.

The invention discloses a novel defoaming agent with strong foam-inhibiting capacity. The novel defoaming agent is prepared from the following ingredients in parts by weight: 11 to 18 parts of mineral oil, 16 to 21 parts of methyl cyclohexane, 4 to 9 parts of white carbon black, 7 to 16 parts of tributyl phosphate, 11 to 19 parts of compound emulsifier, 13 to 21 parts of organic bentonite, 13 to 23 parts of glycerol triacetate, 23 to 31 parts of water and 3 to 9 parts of tri-isobutyl phosphate.

The invention discloses a low-viscosity high-efficiency emulsion type defoaming agent for an offshore oilfield and a preparation method thereof. Long-chain alkyl polydimethylsiloxane with a mixed structure, high-molecular-weight polydimethylsiloxane alcohol and polyether alkyl modified silicone oil are used as raw materials, a hydrophilic gas-phase white carbon black reinforcing agent react to prepare active silicon paste A; mixed polyether silicone oil B, propylene glycol polyether C and active silicon paste A with specific structures are mixed and react under the catalysis of reusable solid complex platinum to prepare a main agent of the defoaming agent, and a low-viscosity and high-efficiency emulsion type defoaming agent product is prepared by taking isomeric alcohol ether as a co-emulsifier, deionized water as a dispersing agent and pentaerythritol allyl ether polymer as a stabilizer. The product is low in viscosity and good in stability, has a better foam breaking effect on crude oil foams of offshore oilfields, and better meets the application requirements of offshore platforms.

The invention discloses an emulsion-type antifoaming agent used for rubber and plastic, which belongs to the chemical preparation field. The emulsion-type antifoaming agent used for rubber and plastic comprises the following components by weight part: 13-20 parts of alkylol amine, 40-50 parts of alkymer, 25-30 parts of aliphatic acid, 5-10 parts of assisted antifoaming agent, 4-10 parts of dispersant and a proper amount of water. The emulsion-type antifoaming agent is capable of eliminating foams, and has the advantages of simple preparation, easy operation, fast defoaming speed and strong foam inhibition capability, the emulsion-type antifoaming agent has no adverse influence on rubber and plastic polymers, no by-product, waste water, exhaust gas and solid waste materials can be generated during a reaction process, and no pollution is generated on environment.

The invention provides a high-efficiency water reducer, which relates to the technical field of concrete admixtures in building materials, including polyethylene glycol monomethyl ether, malein rosin, phthalic anhydride, sodium p-styrenesulfonate, concentrated sulfuric acid, and sodium hydroxide solution , vitamin c, vitamin e, vitamin b, azobisisoheptanonitrile, dimethyl azobisisobutyrate, ammonium persulfate, foaming agent, defoaming agent, ultrapure water. The present invention takes polyethylene glycol monomethyl ether and maleic rosin as main raw materials, vitamin C and vitamin E as reducing agents; azobisisoheptanonitrile, dimethyl azobisisobutyrate and ammonium persulfate as Initiator, adding modified silicone defoamer, the high-efficiency water reducer made of good stability, used in concrete, can increase its workability, and this water reducer can be mixed with other water reducers to make The process is simple, the cost is low, and the practicability is high.

The invention discloses an antifoaming agent. The antifoaming agent is prepared from low-hydrogen silicone oil, amino silicon oil, 1.5% concentrated sulfuric acid, octamethylcyclotetrasiloxane, trifluoropropionic acid, polyether silicone oil, carboxymethyl cellulose sodium, and sorbitol. According to a preparation method, low-hydrogen silicone oil is subjected to chemical modification so as to obtain the antifoaming agent, defoaming speed of the antifoaming agent is increased greatly, foam inhibition performance is improved, using amount is one third less than that of common antifoaming agents, and the antifoaming agent possesses excellent water solubility.

The invention discloses a defoaming agent and a preparation method thereof. The defoaming agent comprises water-soluble silicone oil, silicone grease, Span-80, Tween-80, tetradecyl alcohol ether MOA-4, an anti-static agent SE-10, water, stearic acid, propylene glycol, 201-500 CS silicone oil and 201-1000 CS silicone oil. The preparation method comprises following steps: preparing an organic silicon mixture from water-soluble silicone oil, 201-500 CS silicone oil and 201-1000 CS silicone oil; preparing an emulsifier mixture from silicone grease, span-80, Tween-80, tetradecyl alcohol ether MOA-4and antistatic agent SE-10, wherein adding 6.5 kg of water into a heating kettle, adding 1.1 kg of stearic acid, heating, and stirring for later use; preparing 100kg of the organic silicon mixture from water-soluble silicone oil, 201-500CS silicone oil and 201-1000CS silicone oil; adding the emulsifier mixture composed of 2 kg of silicone grease, 4.2 kg of Span S-80, 2 kg of Tween T-80, 1.3 kg oftetradecyl alcohol ether MOA-4 and 1.5kg of the antistatic agent SE-10 into an emulsifying machine to be uniformly stirred; adding the solution obtained in the step (1), stirring, and emulsifying; adding 120ml of propylene glycol; introducing cooling water into an interlayer of the emulsifying machine, and cooling to normal temperature to obtain a finished product.