176results about How to "Fast defoaming" patented technology

The invention discloses UV-moisture dual-curing liquid optical cement. The UV-moisture dual-curing liquid optical cement is prepared from, by weight, 45-80 parts of UV moisture curing matrix resin, 10-50 parts of tackifying resin, 10-35 parts of reactive diluents, 0.3-5 parts of photoinitiator and 1-5 parts of additive. The matrix resin and the tackifying resin have unique molecular structures. The invention further provides a preparation method of the UV-moisture dual-curing liquid optical cement. The preparation method comprises the following steps that the matrix resin and the tackfying resin are prepared; then all the materials are placed in a planetary vacuum mixer and are stirred and mixed to be uniform, and the finished product is obtained through filtering and defoaming. The problem of cement overflow that common liquid optical cement cannot overcome and the problem that the common liquid optical cement is not suitable for the special lamination process of UV precuring, lamination and moisture curing for cement overflow prevention are solved, a cement film formed by the UV-moisture dual-curing liquid optical cement after primary UV curing has moderate bonding strength and a good locating effect, the bonding strength is greatly improved after moisture curing, the surface of the cement film is very smooth, a certain edge shape is kept, no edge collapse phenomenon occurs, and the UV-moisture dual-curing liquid optical cement is suitable for automatic equipment coating.

The invention relates to water-borne plastic paint and a preparation method thereof, and belongs to the technical field of paint processing. The water-borne plastic paint is prepared from the following components in a certain proportion: water-borne acrylic resin, water-borne epoxy resin, a coalescing agent, a water-borne color paste, hydroxyethyl cellulose, talc powder, a defoaming agent, a flatting agent, flame retardant, nano-silicon dioxide, dimethylethanolamine and deionized water. The paint film has strong adhesion, good glossiness and strong strength, has a certain flame retardant effect, and is safe and reliable.

The invention provides an anti-sinking PU extra-clear primer which is prepared by mixing an anti-sinking PU polyurethane primer, a PU anti-sinking curing agent and a PU anti-sinking diluent, wherein the anti-sinking PU polyurethane primer is prepared from soybean oil alkyd resin, a dispersant, an antifoaming agent, anti-settling slurry, pigment and filler, nitrocotton liquid, a leveling agent, a dryer and the like in addition with an environment-friendly solvent; the PU anti-sinking curing agent is prepared from n-butyl acetate, isocyanate tripolymer and isocyanate heteropolymer; and the PU anti-sinking diluent is prepared from the solvents such as n-butyl acetate, propylene glycol monomethyl ether acetate, dimethyl carbonate and the like. The anti-sinking PU polyurethane primer, the PU anti-sinking curing agent and the PU anti-sinking diluent are sufficiently and uniformly mixed to prepare the anti-sinking PU extra-clear primer which has excellent anti-sinking property and extra high transparency and is easy to polish; and the shortcomings of slow drying, poor anti-sinking property, common adhesion, low transparency, common polishing property and the like of the commercially available products are overcome.

The invention discloses a combined type egg beater with a rapid defoaming effect. The combined type egg beater with the rapid defoaming effect comprises an egg beater body, a base and an egg beating mechanism, wherein the base is positioned on one side of the bottom of the egg beater body; a control box is mounted on the top of the egg beater body; a first motor is mounted in the control box; theegg beating mechanism is arranged at the bottom of the control box; the egg beating mechanism comprises a fixed rod and a stirring net head; a defoaming plate is movably mounted in the fixed rod; a liquid inlet is formed in the bottom of the defoaming plate; a filter screen is mounted in the liquid inlet; multiple layers of defoaming cavities are formed in the defoaming plate; a plurality of defoaming openings are formed between each two adjacent defoaming cavities; a plurality of stainless steel pricking needles are arranged in each defoaming opening; a liquid outlet is formed in the top of the defoaming plate; an adjusting cavity is formed in the base; and the inner wall of the bottom of the adjusting cavity is rotatably connected with a positioning rod and a rotating plate separately. The combined type egg beater with the rapid defoaming effect is reasonable in design and convenient to use; defoaming can be implemented rapidly; the purpose of shaking while stirring is achieved; andthe egg beating effect and the using effect of the product are improved effectively.

The invention discloses silyl ether mixed defoaming agent emulsion and a preparation method thereof. The silyl ether mixed defoaming agent emulsion is prepared from the following components: linear simethicone, allyl ether modified polysiloxane, polyoxypropylene glyceryl ether, modified white carbon black, triethanolamine and a compound emulsifier. The preparation method comprises the following steps: uniformly mixing the linear simethicone and the modified white carbon black, and heating to obtain a mixture I; adding triethanolamine into the mixture I, stirring and cooling to obtain a mixture II; adding the allyl ether modified polysiloxane and the polyoxypropylene glyceryl ether, and further stirring to obtain a mixture III; adding the compound emulsifier into the mixture III, and stirring at high speed to obtain coarse emulsion; adding thickening water into the coarse emulsion, and preparing raw emulsion; and pouring the raw emulsion into a high-speed homogenizer for stirring to obtain the fine-smooth and stable emulsion. The defoaming agent easily dissolves in water, and is small in specific surface area, high in defoaming speed, lasting in foam inhibition and small in use amount; the preparation method is convenient and easy to operate; the defoaming agent has no toxic effects on microorganisms, has an effect of promoting the growth of mycelia, is beneficial to microbial fermentation and is relatively environmentally friendly.

The invention discloses a modified organosilicone defoaming agent, a defoaming agent composition and a preparation method thereof. The modified organosilicone defoaming agent comprises the following raw materials in parts by weight: 10 to 20 parts of silicon paste, 10 to 15 parts of an EO/PO block copolymer, 2 to 5 parts of a surfactant, 1.5 to 3 parts of a thickening agent and 70 to 85 parts of water. The defoaming agent obtained by the modified organosilicone defoaming agent is rapid in defoaming, durable in foam inhibition, high in cost performance and high in dispersibility; the defoamingagent has high-temperature resistance, acid and alkali resistance, electrolyte resistance and shear resistance, has high compatibility with various kinds of dye, avoids oil floating, does not have silicon spots, is safe and non-toxic, meets the environment-protecting requirement, has stable quality, proper viscosity and proper concentration, and is convenient to use and dilute.

The invention provides settleability water base grinding fluid and a preparation method thereof. The settleability water base grinding fluid comprises, by weight, the following ingredients: 5-20% of settling agents, 25-60% of antirust agents, 15-40% of lubricating agents, 1-3% of sterilizing agents and the balance water. The settling agents are selected from one or more mixtures of polyethylene dichloro ethyl ether tetramethyl ethylenediamine, polyglycerol and ethylene glycol butyl ether (EGBE). The settleability composite grinding fluid has the advantages of being good in settleability, rapid in defoaming, good in antirust effect, long in service life and high in comprehensive performance cost ratio.

The invention discloses a defoaming device and method for coal-mine foam drilling. When a foam drilling process is utilized to perform construction of bedding gas drainage long boreholes among soft coal seams in the coal mine, the problems that waste foam accumulates in the drilling field for a long time and normal drilling construct operations are affected exist. According to the defoaming method, compressed air is adopted as a motive medium, wall-adherent jet is adopted as one single motive source, three technical manners of chemical defoaming, air flow jet defoaming and centrifugal defoaming are integrated, and the defoaming method has the advantages of reliable and rapid defoaming; the matching device is free of movable parts and electrical components, the requirements on explosion-proof performance of equipment in coal-mine construction operating environment can be met, and the defoaming device has the advantages of small size, lightweight performance and low requirements on place conditions.

The invention relates to a water-based chain plate lubricating agent for soft beverage packages and a preparation method of the water-based chain plate lubricating agent. The water-based chain plate lubricating agent for soft beverage packages consists of the following raw materials in percentages by mass: 5-10% of alkyl alcohol polyoxyethylene ether, 1-3% of short EO chain fatty alcohol-polyoxyethylene ether, 0.5-1% of a foam control agent, 1-3% of a solubilizer, 0-0.2% of a pH regulator, and the balance of water. The water-based chain plate lubricating agent provided by the invention has the feature of good lubricating performance, and has the advantages of small surface tension, low bottle felling rate and low friction coefficient when used for lubricating the soft beverage packages.

The invention provides infant formula milk powder with a quick bubble removal effect and a production method of the infant formula milk powder. The method comprises the steps as follows: dissolving phospholipid in an oil raw material, then, dispersing the oil raw material in a milk powder liquid by homogenization, and introducing compressed gas before spray drying. The invention also provides theinfant formula milk powder with the quick bubble removal effect, produced by the method. The infant formula milk powder produced by the method is dissolved by brewing, can produce a large number of large bubbles after violent shaking and contains few small bubbles. The large bubbles further fuse and break quickly and basically completely disappear within 5-30 s. Under the same condition, bubbles of ordinary infant formula milk powder still exist after being placed for 30 min.

The invention discloses a compound-type de-foaming agent. The compound-type de-foaming agent comprises the following raw materials in percentage by mass: 1-20 percent of modified silicon polyether, 5-70 percent of polyether modified siloxane, 3-50 percent of an emulsifying agent, 10-20 percent of polyethylene glycol, 1-10 percent of fatty alcohol and 2-15 percent of triglyceride. The compound-type de-foaming agent has the advantages of stable performance, high de-foaming speed and long foam inhibition time, does not poison sewage microorganisms, does not change the COD (chemical oxygen demand) and BOD (biochemical oxygen demand) of sewage, and is applicable to wastewater treatment of enterprises of papermaking, printing-dyeing, sugar refinery, pharmacy and leather.

Disclosed is a graphene modified organosilicone liquid defoaming agent. The agent is prepared from, by weight, 50-70 parts of organosilicone active matter, 20-30 parts of emulgator, 2-5 parts of graphene, 1-1.5 parts of thickening agent and 1-1.5 parts of coupling agent. The organosilicone active matter is formed by compounding one or more of methyl silicone oil, methyl phenyl silicone oil, ethyl silicone oil, polyether modified silicone oil and dimethyl siloxane hydrolysate; the emulgator is a non-ionic surface active agent and is formed by compounding one or more of alkylphenol polyoxyethylene ether, polyoxyethylene ether and fatty alcohol-polyoxyethylene ether; the thickening agent is formed by compounding one or more of hydroxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl cellulose. The defoaming agent has the performance of high temperature resistance, acid and alkali resistance and hydrophile of oxidized graphene, the defoaming performance of the defoaming agent can be enhanced, and the foam generating performance is inhibited. The invention further provides a preparation method of the defoaming agent.

The invention relates to a casting epoxy resin composition for part repair, aims at achieving the technical purpose that the requirements of rapid curing at room temperature and excellent properties can be met simultaneously, and belongs to technical field of high-molecular polymers. The composition is characterized in that a preparation method of the composition comprises the steps that 1, preheated bisphenol A type epoxy resin, toughening type epoxy resin and a diluent are added into a reaction kettle in sequence, the temperature inside a stirring tank is maintained to be 50-70 DEG C, a defoamer is added, stirring and defoaming are conducted simultaneously, and a resin mixture is obtained; 2, aliphatic amine is added into another reaction kettle, stirring is started, the temperature inside a tank is maintained to be about 25-40 DEG C, alicyclic amine and an amine type accelerator are added in sequence, mixing and stirring are conducted continuously for 15-30 min, and a curing agent mixture is obtained; 3, the resin mixture and the curing agent mixture are mixed to be uniform according to the ratio of 100:(15-17), and the epoxy resin composition for part repair is obtained. The comprehensive performance of the product is excellent, and the composition has low viscosity and rapid curing speed and can meet curing requirements in different temperature environments.

The invention provides an oilfield industrial defoamer composition, which is prepared from the following components in parts by mass: 20-30 parts of polymethylsiloxane, 30-50 parts of polyether, and 4-50 parts of thickener 8 parts, 10-15 parts of emulsifier, 2-10 parts of nonionic surfactant, the defoamer composition can efficiently eliminate and suppress foaming, stable performance, less dosage, non-toxic and environmentally friendly.

The invention discloses a defoaming agent for sewage treatment and a preparation method of the defoaming agent. The defoaming agent comprises the following raw materials by weight: modified silicone polyether, polyether siloxane, an emulsifying agent, polyethylene glycol, diethanol glycerolipid, ethylene bis stearamide, heavy liquid paraffin, dimethyl silicon oil, white carbon black, compound fatty acid salt, a texturing agent, propylene glycol stearic acid ester, a dispersant and a stabilizer, wherein the texturing agent comprises more than two types of chemical substance in molasses, polyaluminium chloride, polyaluminium sulfate, aluminum sulfate, calcium chloride and modified bentonite. The defoaming agent is good in stability and low in cost, greatly reduces the sewage treatment cost, does not cause secondary pollution, has high effect on reducing surface tension, has good and rapid defoaming and antifoaming effect, does not poison microorganisms in sewage, does not change COD and BOD performances of the sewage, and is beneficial to the subsequent water treatment technology, simple in production process and convenient to use.

The invention relates to the construction field, and in particular relates to a high corrosion-resistant marine cement cementing material and a preparation method thereof, and the high corrosion-resistant marine cement cementing material comprises 20-25 parts of wollastonite; 80-100 parts of sulphoaluminate cement; 30-50 parts of nano-like hydrotalcite; 20-30 parts of fiber; 80-100 parts of coralreef sand; 50-60 parts of polyacrylamide; 20-30 parts of modified acrylic emulsion and 10-15 parts of additives; the invention aims to overcome the defects of the prior art and provide the high corrosion-resistant marine cement cementing material and the preparation method thereof. The high corrosion-resistant marine cement cementing material has the characteristics of good mechanical strength, durability and corrosion resistance, improved bending strength, improved cement density, better flocculation property, capability of reducing friction resistance between liquids, excellent impermeability, quick hardening, early strength, high later strength and the like.

The invention discloses a powdered rubber isolating agent which is prepared from the following raw materials in parts by weight: 50-110 parts of inorganic minerals, 3-30 parts of nanometer calcium carbonate, 0.5-5 parts of a surfactant, 0.5-5 parts of a defoamer and 1-3 parts of fatty acid. The powdered rubber isolating agent is little in foaming, rapid in defoaming and not liable to precipitation, does not have influence on the performance of rubber, is used for airing a film without powder dropping from the surface and has excellent isolation effect on the film.