79results about How to "No demulsification" patented technology

The invention discloses a method for preparing amphiphilic nano silica powder and is used for preparing nano silica powder with about 90 degrees of a tri-phase contact angle. The method uses ultrasonic preparation, thus having short preparation process; the invention adopts liquid phase modification, thus avoiding processing means such as grinding, calcining and the like which are easy to cause the powder to generate hard particle agglomeration; the invention can prepare better amphiphilic surface (about 90 degrees of tri-phase contact angle) nano silica powder. The invention also discloses a method for preparing Pickering emulsion by using the amphiphilic nano silica powder under the action of ultrasound or cutting, the nano silica powder stably exists in oil-water interface, thus preventing diffused oil (water) droplets to re-agglomerate into big droplets to split phase and stabilizing emulsion. The prepared emulsion can be stored at room temperature without occurrence of demulsification in three months.

The invention relates to a quaternized modified amino silicone oil softener and preparation and application thereof. The softener comprises the following general formula in the specification. The preparation comprises the following steps of: (1) adding octamethylcy-clotetrasiloxane into a container, adding a coupling agent N-beta-(aminoethyl)-gamma-aminopropyl methyl dimethoxysilane into the container dropwise, adding a tetramethyl ammonium hydroxide catalyst and subsequently a capping agent hexamethyl disiloxane into the container, and then performing reduced pressure distillation to obtain amino silicon oil; (2) dissolving the amino silicon oil into a solvent, adding the mixture into epichlorohydrin, stirring and heating to react under the protection of nitrogen, and removing the solvent by steaming to obtain an intermediate product; and (3) uniformly mixing N,N-dimethyl-decanamide and the solvent to obtain a mixture, stirring with heating, adding the intermediate product dropwise into the mixture under the protection of nitrogen, performing a thermostatic reaction, and removing the solvent by steaming to obtain the product. The softener of the invention has high hydrophilicity and high stability; fabric processed by the softener has excellent soft handfeel, high hydrophilicity, low yellowing, antibacterial property and the like; and the softener is simple to prepare and is suitable for industrial production.

The invention discloses a carbon fiber water-soluble epoxy resin sizing agent and a preparation method thereof. The sizing agent comprises main slurry and deionized water as main components, wherein the mass ratio of the main slurry to the deionized water is (50-80):(20-50); and the main slurry consists of modified phenol-formaldehyde epoxy resin and allyl polyoxylethylene ether (AEPH), and the mass ratio of the modified phenol-formaldehyde epoxy resin to AEPH is (60-90):(10-40). The preparation method of the sizing agent comprises the following steps: firstly reacting phenol-formaldehyde epoxy resin with diethanolamine to obtain water-soluble phenol-formaldehyde epoxy resin; and then mixing the water-soluble resin with AEPH in proportion, and performing dilution to reach a certain concentration by using the deionized water to obtain the sizing agent. The sizing agent disclosed by the invention is good in stability and low in cost, cannot cause environmental pollution, and is simple in preparation method; good post-processing performance of carbon fibers can be provided by adding flexible molecular AEPH; experiments show that after the carbon fibers are coated with a proper amount of the sizing agent, the post-processing performance can be significantly improved; and the performance of a carbon fiber epoxy resin composite material can be improved.

The invention discloses a water-based paint for quick-drying alcohol-resistance plastics, comprising the following components by weight parts: 20-80 parts of modified polyacrylic ester water dispersoid, 1-25 parts of coloring pigment paste, 0-10 parts of filler pump, 5-25 parts of film formation assistant, 0.5-10 parts of assistant for water-based paint, and 10-50 parts of water. The invention further discloses a preparation method of the water-based paint, comprising the following steps: the water, the film formation assistant, polymer water dispersoid resin and the assistant for partial water-based paint are added in a make-up tank and are stirred uniformly, and then the coloring pigment paste and the assistant for the remaining partial water-based paint are sequentially added in and are stirred uniformly, the viscosity and pH value are regulated, filtering and discharging are carried out to obtain the water-based plastic paint finished products. The water-based paint is used for coating surface of the plastics, so as to achieve good decoration effect; in addition, the performance of the water-based paint is equivalent to that of solvent plastic paint, the water-based paint has good alcohol resistance and can be dried at 50 DEG C for 10 minutes, so as to meet the process requirements of manufacturers who use the solvent plastic paint at present.

The invention discloses a preparation method for a waterborne polyurethane binder and a lithium-ion battery anode slurry containing the waterborne polyurethane binder, and relates to the technical field of lithium ions. The preparation method for the waterborne polyurethane binder comprises the following steps: subjecting macromolecular dihydric alcohol to dehydration treatment, mixing dehydratedmacromolecular dihydric alcohol with diisocyanate, carrying out a reaction under heating, then carrying out cooling, adding a side-chain type nonionic hydrophilic monomer, carrying out a reaction under heating, then carrying out cooling, adding a micromolecular chain extender, a catalyst and a solvent, carrying out a reaction under heating, and carrying out cooling and discharging so as to obtaina prepolymer emulsion; and adding water into the prepolymer emulsion, carrying out emulsification under high-speed dispersion, then adding a diamine chain extender, and carrying out pressure-reduced distillation to remove the solvent so as to obtain a waterborne polyurethane emulsion with a side-chain structure. The polyurethane binder prepared by using the preparation method provided by the invention has good flexibility and excellent bonding performance, and is used in an anode slurry; and a button type lithium-ion battery assembled by using the anode slurry has large first discharge capacity and good cycle performance.

The invention relates to a wood bamboo material corrosion and discoloration prevention triazole composition and a preparation method thereof. The preparation method comprises the following steps: preparing a triazole concentrate comprising 4.1-15.6wt% of a triazole compound, 33.6-67wt% of an ethanol and N,N-dimethyl formamide (DMF) combination, 20.7-26.5wt% of an amine oxide and quaternary ammonium salt combination or a calcium dodecyl benzene sulfonate and fatty alcohol polyoxyethylene ether (MOA-15) combination, and the balance of water, wherein the triazole compound is hexaconazole, cyproconazole, epoxiconazole, triadimenol, or a propiconazole/tebuconazole combination with the ratio of propiconazole/tebuconazole of 1:0.68-0.95; and adding parts of water to the triazole concentrate, adding 5-chloro-2-methyl-1-isothiazoline-3-one/2-methyl-1-isothiazoline-3-one (CMIT-MIT), and diluting the above obtained solution to obtain a triazole composition operating fluid. When the triazole composition operating fluid is used to carry out vacuum pressurizing treatment on a wood bamboo material, the wood bamboo material is dried until the water content of 20-25%, 5-9% low-molecular weight (the molecular weight is smaller than 1000) phenolic resin (PF) is used to carry out secondary vacuum pressurizing treatment, and the two-stage treated wood bamboo material has excellent corrosion, mildew and discoloration resistance and excellent triazole anti-loss performance after being dried.

The invention provides an environment-friendly and safe waterborne polyurethane adhesive for synthetic leather and a preparation method thereof. The polyurethane adhesive is prepared mainly from the raw materials such as polytetrahydrofuran glycol, dicyclohexylmethylmethane diisocyanate, phosphoric acid, dimethylolpropionic acid, trimethylolpropane polyoxypropylene polyoxyethylene ether, isophorone diamine and deionized water. In a using process of the waterborne polyurethane adhesive for synthetic leather, the volatilized gas is water vapor which is harmless to environment, thereby greatly reducing the cost for controlling environmental pollution. The waterborne polyurethane adhesive for synthetic leather is insensitive to the environmental factors such as acid, alkali and electrolyte, and avoids the phenomenon of emulsion breaking caused by adding various auxiliaries; meanwhile, by adding a proper amount of carboxylic chain extender into the formula, the obtained waterborne polyurethane adhesive for synthetic leather has excellent performance such as high strength, high wear resistance, yellowing resistance, aging resistance, low-temperature resistance, folding resistance and good permeability.

The present invention relates to emulsion of polymer. The emulsified paraffin damp-proof agent consists of paraffin, modified resin, non-ionic surfactant composite, emulsifying assistant and water. It has high stability and damp resisting performance, and may be used to optimize the production process of mineral wool sound absorbing board, reduce the consumption of damp-proof agent and lower the cost.

The invention belongs to a wood and bamboo material corrosion and mold prevention modified combination agent and a wood and bamboo material treating method. The wood and bamboo material corrosion andmold prevention modified combination agent comprises, by weight, 0.04-0.10 part of triazole, 0.05-0.12 part of 3-iodo-2-propynyl butylcarbamate, 1-6 parts of water soluble dyes, 1-6 parts of dyeing assistants, 1-6 parts of fire retardants and 1-10 parts of polymerization inhibitors. A wood and bamboo material treated through the modified combination agent can simultaneously have the functions of corrosion prevention, mold prevention, dyeing, inflaming retarding and pharmaceutical composition loss resistance, and has the advantages of easy operation, easy implementation, low preparation and using cost, good durability and long service life.

The invention relates to a method for preparing a water polyurethane drier, which comprises the following steps: weighing material, oil main drier, oil auxiliary drier, emulsifier, emulsion reaction drier, chelant and deionized water according to 1:1.5-1.5:0.005-0.1:0.0001-0.005:0.001-0.02:1-5; adding deionized water in the emulsifier with high shearing force( the rotary speed is 13000-15000 rotation/ minute, the linear speed isn't less than 25m/s); adding oil main drier, oil auxiliary drier, chelant, dilaurate ortho-butyl tin and emulsifier sequentially; starting the recalculated water in the emulsifier when the material temperature in the reactor is 40Deg. C; keeping the temperature of liquid less than 40Deg. C; acquiring the water polyurethane drier by mixing 25-30minutes. The water polyurethane drier can dissolve with water, which can dissolve with water polyurethane according to any proportion, and has the long saving time and the low cost.

The invention provides a caviar shower gel capable of blooming and whitening skin. Raw materials for preparation of the shower gel comprise a skin conditioning agent, wherein the skin conditioning agent comprises sturgeon caviar extract, and the weight percentage of the sturgeon caviar extract in the raw materials for preparation of the shower gel is 0.03 to 0.3%. The caviar shower gel provided bythe invention adopts the skin conditioning agent containing micromolecular proteins, and the micromolecular proteins can more easily enter the body, supplements collagen to skin, and allows skin to be more elastic, smooth, moist and tender; the caviar shower gel utilizes oil-controlling components with natural and powerful adsorption effect, so deep cleaning of stains in pores can be realized, and the body is allowed to better absorb the skin conditioning agent; the caviar shower gel also employs an anti-sensitizer capable of alleviating irritation of active substances to skin; and a humectant and arbutin capable of rapidly infiltrating into skin are used, so deep cleaning of the skin is realized, whitening and deep moistening effects are obtained, and skin is allowed to be skin and elastic.

The invention provides a nontoxic and tasteless emulsion adhesive for food packaging, which consists of the following raw materials in percentage by weight: 45-62% of acrylic acid mixed emulsion, 8-10% of rosin emulsion and 30-45% of liquid resin emulsion. The emulsion adhesive has the advantages of high adhesive strength and long opening time, and is suitable for the manual and flow line production of food packaging boxes; moreover, the emulsion adhesive is remarkably convenient to apply and easy to clean.

The invention discloses a ginsenoside Rg3 slow release nanometer microsphere composition, and a preparation method and a use thereof. The method is characterized in that a medicine coating matrix is a polylactic acid-glycolic acid copolymer (PLGA), polyvinyl alcohol (PVA) is adopted as an emulsifier, and Rg3-PLGA nanoparticles with good re-dispersibility are prepared through purifying and drying by adopting a solvent volatility technology; and the Rg3-PLGA nanoparticles are dried to form white powder which can be preserved for a long term. The particles have the advantages of smooth and round surfaces, no adhesion among the particles, good dispersiveness and uniform size, and the average particle size of the particles is 97.5 nm. The composition has high endophilicity to the PLGA material, has a high entrapment rate (of 94.3%), and has a good slow release performance, and the slow release period is 4 d or more. The nanoparticles can be used in antitumor therapy in an intravenous injection and local administration mode, and has wide application prospect.

The invention discloses a magnesium alloy cutting fluid resistant to bimetallic contact corrosion. The magnesium alloy cutting fluid comprises the following raw materials by weight: 23-30 parts of a composite rust inhibitor, 5-8 parts of a composite phosphorus-containing corrosion inhibitor, 0.6-1.5 parts of benzotriazol, 20-40 parts of mineral oil, 5-12 parts of vegetable oil-modified lubricatingester, 3-5 parts of petroleum sulfonate, 4-7 parts of fatty alcohol polyoxyethylene ether, 0.6-1.2 parts of a coupled solubiliser, 20-35 parts of water, 2-4 parts of a microbial inhibitor and 0.05-0.2 part of a siloxane antifoaming agent. The invention also discloses a preparation method for the magnesium alloy cutting fluid resistant to bimetallic contact corrosion. The cutting fluid of the invention can meet the requirements of magnesium alloy for anti-corrosion performance and solve the problem of bimetal contact corrosion occurring in the processing of the magnesium alloy by metal processing enterprises, thereby improving the yield and the production efficiency of magnesium alloy processing.

The invention provides a lithium ion battery anode, a preparation method of the lithium ion battery anode, and a lithium ion battery. The lithium ion battery anode comprises an anode current collectorand an anode material, wherein the anode material is adhered to the surface of the anode current collector; the anode material comprises an anode active material, a conductive agent, an adhesive anda dispersing agent; the dispersing agent accounts for 0.6-1.0% of the total mass of the anode material; by 100% of the mass of the dispersing agent, the dispersing agent comprises the following components: 45-55% of sodium carboxymethylcellulose and 45-50% of lauryl sodium sulfate; and the feeding ratio of the sodium carboxymethylcellulose to the lauryl sodium sulfate is greater than or equal to 0.9 and less than or equal to 1.2. A paste prepared from the anode material is stable in property and not liable to sink; when a current collector is coated by the anode material to form a anode, the phenomenon of peeling is avoided; and after the lithium ion battery is assembled, the internal resistance of the battery is reduced, and the service life of the battery is prolonged.

The invention discloses an emulsion type sizing agent for a carbon fiber as well as a preparation method and application of the emulsion type sizing agent. The sizing agent contains 2-40 percent of epoxy resin, 0-97 percent of water, 0.5-14 percent of surfactant, 0.3-12.5 percent of cardanol, 0.1-1.5 percent of formaldehyde and 0.1-2.0 percent of inorganic ammonium salts. The emulsion type sizing agent contains the cardanol and the formaldehyde as toughening and modifying agents, so that when the carbon fiber sized by using the emulsion type sizing agent for the carbon fiber is compounded with an epoxide resin matrix taking polyamine as a curing agent to form a composite material, the interlaminar shear strength is improved by over 30 percent and the carbon fiber composite material is enabled to have higher integral performance. The emulsion type sizing agent contains the inorganic ammonium salts, so that the storage stability of the sizing agent is greatly improved and the phenomena of demixing and non-uniformity of concentration are avoided. According to the emulsion type sizing agent disclosed by the invention, the phenomena of demixing and emulsion breaking in the use process of the sizing agent are avoided. After the carbon fiber sized by the sizing agent disclosed by the invention is stored at normal temperature for five years, the mass percentage of the sizing agent on the surface of the carbon fiber is unchanged.

A method for preparing multiple emulsions from layered active particles comprises steps of: preparing a surfactant oily solution, a water-in-oil emulsion and a layered active particle water dispersion system and further preparing a water-in-oil-in-water multiple emulsion. The preparation technology comprises the following steps of: (A) preparing the surfactant oily solution with the mass concentration of 1.0-4.0%; (B) gradually adding clear water into the surfactant oily solution at the stirring rate of 800-1200 r/s to obtain the water-in-oil emulsion; (C) preparing the layered active particle water dispersion system with the mass concentration of 0.5-1.5%; and (D) gradually adding the water-in-oil emulsion into the layered active particle water dispersion system at the high stirring rate of 3000-5000 r/s to obtain the oil-in-water water-covering multiple emulsions. The method provided by the invention has characteristics of long stabilization time, small amount of the surfactant, low cost, safety, environmental protection, no toxic and side effect and the like, and is widely applied in petroleum exploitation technologies.

The invention belongs to the technical field of veterinary medicaments, and particularly relates to a compound emulsion for animals and a preparation method thereof. The compound emulsion for animals comprises tylosin tartrate, azithromycin, emulsifier, poloxamer, propylene glycol, soybean oil for injection and water for injection. The compound emulsion for animals has high safety; and because the emulsion contains no organic solvent, the toxicity of the organic solvent is reduced, and the emulsion has good environmental friendliness.

The invention provides a preparation method of an alkyl ketene dimer papermaking sizing agent. The preparation method comprises the following steps: mixing a hectorite aqueous dispersion with acetone, ammonia monohydrate and hexadecyl trimethyl siloxane, and carrying out ultrasonic dispersion to obtain a mixed solution I; adding tridecafluorooctyltriethoxysilane into the mixed solution I, and carrying out ultrasonic dispersion to obtain a mixed solution II; drying the mixed solution II to obtain modified hectorite powder; mixing the modified hectorite powder with perfluorohexane, carrying out ultrasonic dispersion, adding molten AKD, conducting mixing and heating, and carrying out ultrasonic emulsification to obtain an AKD-A emulsion; and mixing the AKD-A emulsion with a sodium dodecyl sulfate aqueous solution, and carrying out ultrasonic emulsification to obtain the alkyl ketene dimer papermaking sizing agent. The sizing performance of the AKD emulsion prepared by the method disclosed by the invention is remarkably improved, and meanwhile, the hydrolysis resistance and emulsion stability of the AKD can be greatly improved; and the AKD sizing agent emulsion disclosed by the invention is simple in preparation process, low in emulsifying cost and good in sizing effect, and the dosage of an emulsifying agent is small.

The invention discloses nano tourmaline dispersion liquid and a preparation method thereof. The preparation method comprises the following steps: mixing an oil phase component and an emulsifier in anoil phase system according to a certain addition ratio; adding a dispersion stabilizer, a surfactant and nano tourmaline powder into water according to a certain addition ratio in the water dispersionsystem, and performing mixing; respectively uniformly mixing the two phases, performing heating to a certain temperature, carrying out homogeneous mixing on the two phases under rapid stirring, and performing cooling to room temperature to form a stable emulsion dispersion system; according to the nano tourmaline composite dispersion liquid prepared by the method, the difference between the tourmaline particle size and the particle size of a nano tourmaline powder raw material is within 20%; in the dispersion liquid, the nano tourmaline particles are suspended in the solution in a monodisperse form; and after the nano tourmaline composite dispersion liquid is placed for more than 60 days, the phenomena of layering, demulsification or caking of the nano tourmaline composite dispersion liquid are avoided. Moreover, the preparation method is simple and convenient to operate, wide in parameter adjustable range, low in energy consumption, short in period and suitable for pilot scale-up andindustrial large-scale production.