606 results about "Microemulsion" patented technology

The invention relates to the technical field of nano materials, and particularly discloses a preparation method of surface modified nano calcium carbonate for a battery diaphragm coating. According to the method, the technical paths of microemulsion confinement crystal form regulation and control, gradient surface modification and boehmite compounding and porosity regulation and control are fused, and the functional nano calcium carbonate adaptive to the battery diaphragm coating is prepared. According to the technical scheme, limestone is used as a raw material, after calcination and digestion, the particle size of nano calcium carbonate is controlled through microemulsion carbonization (a cyclohexane-span 80-n-butyl alcohol system); a silane coupling agent KH560-KH570 is adopted for gradient modification to introduce an electrophilic functional group, boehmite is compounded to form a composite coating, and the porosity is regulated and controlled by adjusting the solid content in coating slurry and the coating speed. The method is stable in process and high in compatibility, and meets the requirements of diaphragm coatings of lithium ion batteries and solid-state batteries.

The invention relates to a bactericidal composition containing fluxapyroxad and thiediazole copper. The bacterial composition is compounded from fluxapyroxad and thiediazole copper in a binary mode, wherein a mass ratio of fluxapyroxad to thiediazole copper is (1-50) to (50-1); a mass fraction of fluxapyroxad and thiediazole in the preparation is 1%-80%, and the rest of the preparation is auxiliary components which are allowed to use and are acceptable in a pesticide. A dosage form of the bactericidal composition is missible oil, a suspending agent, wettable powder, a water dispersible granule, emulsion in water, microemulsion, a granule and a micro-capsule. The bactericidal composition is mainly used for controlling plant gray mold, peronospora and phytophthora germs.

The invention discloses a microemulsion interfacial tension efficient prediction method and system based on active learning and molecular dynamics. According to the method, 217 molecular descriptors corresponding to each molecular structure are calculated by adopting an RDKit software package, and the descriptors are used for representing molecular structure characteristics and serve as input variables of a machine learning model, so that key structure information including molecular branching degree, polarity and the like is transmitted. For an oil-water-surfactant ternary interface system, the oil-water interfacial tension in the presence of a surfactant is simulated and calculated through molecular dynamics, and an IFT value is set as a model prediction target. An active learning mechanism is introduced, and iterative sample labeling in the molecular dynamics simulation process is guided; and integrating the obtained IFT data with the molecular descriptor features, constructing a machine learning data set, and training a random forest model. According to the method, the problem of screening a high-performance surfactant layer by a middle-phase microemulsion system can be solved, and the ultra-low oil-water interfacial tension can be rapidly and efficiently screened.

The invention relates to a whitening and soothing composition, a nano microemulsion containing the same and a preparation method of the nano microemulsion. The whitening and soothing composition comprises a litchi fruit extract, a quercus root extract, a malt extract and palmitoyl tripeptide-5. According to the functional composition, the litchi fruit extract, the oak root extract, the malt extract and the palmitoyl tripeptide-5 are creatively combined for use, so that the functional composition has excellent skin whitening and soothing effects, and the four components have an obvious synergistic interaction effect in the aspects of whitening and soothing the skin; the functional composition can be widely applied to cosmetics with related functions. The nano micro-emulsion prepared from the functional composition is subjected to shearing emulsification and then high-pressure micro-jet treatment, so that the prepared nano micro-emulsion is better in stability and better in appearance property, and the nano micro-emulsion can stably play a role in whitening and relieving for a long time.

The invention relates to the technical field of oilfield chemistry, in particular to an aminoethanesulfonic acid type surfactant and a preparation method and application thereof.The preparation method of the aminoethanesulfonic acid type surfactant comprises the steps that firstly, fatty amine is dissolved in a first solvent, a sodium chloroethanesulfonate aqueous solution is added, and N-long-chain alkyl-2-sodium aminoethanesulfonate is obtained through a reaction; and 2, dissolving a required amount of N-long-chain alkyl-2-sodium aminoethanesulfonate in a second solvent, adding a required amount of methyl acrylate, and reacting to obtain the aminoethanesulfonic acid type surfactant. The aminoethanesulfonic acid type surfactant disclosed by the invention contains long-chain alkyl, amino, ester groups and sulfonic acid groups, so that the aminoethanesulfonic acid type surfactant has good surface activity and can meet the development requirements of oil and gas fields. The microemulsion cleanup additive prepared from the aminoethanesulfonic acid type surfactant can effectively reduce the surface tension and the interfacial tension of an aqueous solution, and the preparation method is easy and convenient to operate, mild in condition and suitable for industrial production.

The application discloses a bacteriostatic and acne-removing microemulsion containing plant extracts and a preparation method thereof. The bacteriostatic and acne-removing microemulsion contains a microemulsion loaded with quercetin alone, a microemulsion loaded with sasanquasapernin alone, and a microemulsion loaded with quercetin and sasanquasapernin simultaneously. The bacteriostatic and acne-removing microemulsion containing plant extracts prepared by the application not only solves the problems of stickiness of camellia oil and poor solubility of quercetin, but also has a synergistic inhibitory effect on propionibacterium acnes, achieves the same high-efficiency bacteriostatic effect with a lower drug concentration, saves drug cost, reduces drug irritation, and expands the application of quercetin and sasanquasapernin in the cosmetic and pharmaceutical fields due to the rich pharmacological effect of the plant extracts, low side effect and safety. The microemulsion system prepared by the application is clear, transparent, uniform and stable, the preparation process is simple, the required energy is low, the cost is low, and the system is beneficial to commercial production.

The invention provides a silica hydrogel, a method for removing the same, and a silica hydrogel film. A silica-based composite material modified by an alkyl amine group NH2L and an organic alkyl group R is prepared by adopting a reversed-phase microemulsion method, and a silica colloid material highly modified by an organic group is obtained by controlling the molar weight of alkyl amine silane and alkyl silane and controlling no use and no contact of any alcohol solvent in the whole preparation process. Adding acetone for demulsification, centrifugally collecting, washing solids, drying to obtain a solid silicon dioxide colloid material, and dissolving the solid silicon dioxide colloid material in deionized water to obtain the silicon dioxide hydrogel. The silica hydrogel has solubility in an alcohol solvent and can be removed by the alcohol solvent. The silicon dioxide hydrogel can be combined on the surface of a membrane material to obtain a silicon dioxide hydrogel membrane.

The invention discloses a microemulsion electrolyte system and application thereof in a lithium secondary battery. The microemulsion electrolyte comprises a polar phase electrolyte (BO), an insoluble solvent (AM) and a bridging solvent (IM), wherein the volume ratio of the BO solvent to the AM solvent to the IM solvent is 100: (0.1-10): (0.1-50); and optionally an additive. According to the micro-emulsion electrolyte disclosed by the invention, the adaptability and controllability of the electrolyte in a high-performance lithium secondary battery are remarkably improved, and a new generation of energy storage devices with high energy density, high safety and long cycle life can be developed.

A method for preparing monodisperse nanoscale calcium fluoride, comprising the following steps: (S1) dispersing calcium long-chain alkylbenzenesulfonate and an acrylate copolymer in a mixed solution of water, n-hexane, and an alcohol to form a stable emulsion A, wherein monomers of the acrylate copolymer comprise (meth)acrylic acid, a polyether macromonomer, and a C1-4 alkyl (meth)acrylate; (S2) dissolving a fluoride salt in water, adding polyvinyl alcohol, and uniformly mixing these materials to obtain a solution B; and (S3) slowly dropwise adding the solution B to the emulsion A under stirring and ultrasonic conditions, and carrying out standing for aging, centrifugal separation, washing, and drying to obtain monodisperse nanoscale calcium fluoride. By using the calcium long-chain alkylbenzenesulfonate with surface activity as a calcium source in combination with homemade acrylate as a dispersing agent, an emulsion is formed in a specific combined solvent, and by dropwise adding a fluorine salt aqueous solution to the emulsion under an ultrasonic condition, nanoscale calcium fluoride with a uniform and controllable particle size can be prepared under the action of a microemulsion.

The invention belongs to the technical field of non-woven fabrics, and particularly relates to a tire-fat-like non-woven fabric and a preparation method and application thereof. The raw material of the tire-fat-like non-woven fabric is tire-fat-like ES fibers; the ES fibers containing the tire-like grease are obtained by padding ES fibers in a tire-like grease microemulsion and drying the ES fibers; the raw materials of the tire fat-like microemulsion comprise a tire fat-like composition, a surfactant, a cosurfactant and deionized water, the fetal fat-like composition is prepared from the following raw materials: ceramide NP, phytosphingosine, cholesterol, liquid paraffin, squalane and plant essential oil, the plant essential oil comprises olive fruit oil, shea butter, a clove extract and a radix aucklandiae extract. The tire-fat-like non-woven fabric provided by the invention has the advantages of low loss rate of active ingredients, excellent antibacterial property and storage stability.

The invention discloses an anti-ultraviolet nano-material, which is characterized in that nano-spheres with uniform and controllable size and anti-ultraviolet capability are prepared by utilizing reverse microemulsion polymerization reaction and adopting a one-pot method. The preparation process is simple, the process is safe, and the use of halogen compounds is not involved. Only 1-5wt% of the nanospheres prepared by the invention are added, so that the waterborne epoxy coating has enhanced mechanical properties and ultraviolet resistance.

The invention relates to an application of D-camphor and cymenin in preparation of an anti-inflammatory soothing preparation for sensitive skin. The invention discloses an application of D-camphor and cymenin as only two effective components in preparation of an anti-inflammatory soothing preparation for sensitive skin. The invention further discloses an anti-inflammatory soothing preparation for sensitive skin, only two effective components of the anti-inflammatory soothing preparation for sensitive skin are D-camphor and cystin, and the anti-inflammatory soothing preparation for sensitive skin can reduce the reaction of IL-6, IL-8 and NO related microinflammation in a keratinocyte inflammation model. The invention has the following beneficial effects: 1, in a high proportion window (5-10: 1) of D-camphor and polycymenin, the inhibition of the compound system of D-camphor and polycymenin on IL-6, IL-8 and NO is superior to that of any monomer; 2, stable dispersion and good use experience can be realized through the micro-emulsion type emulsifying essence or the face cream carrier, and meanwhile, the face cream still has feasibility under the conditions of no essence and no conventional preservative.

The invention provides a composite immersed cooling liquid as well as a preparation method and application thereof. Comprising a dispersion phase, a continuous phase, an emulsifier and an additive, the dispersion phase is fluorine cooling liquid, the continuous phase is oil cooling liquid, the emulsifier is one or more compounded nonionic surfactants, and the HLB value of the emulsifier is 4-9 or 10-18; according to the composite immersed cooling liquid disclosed by the invention, the advantages of high heat conductivity of the oil phase and high safety (non-combustibility and high dielectric strength) of the fluorine phase are ingeniously combined, and 1 + 1gt is realized; 2, the effect is achieved; the oil phase with high cost performance is used for replacing most expensive fluorine phases, and the overall material cost is reduced by 40%-60% compared with that of pure fluorine cooling liquid; the nano-scale microemulsion is formed through the specific emulsifier, the fundamental problem that a traditional mixed solution is inevitably layered is solved, and the shelf life is long; the cooling liquid disclosed by the invention has good material compatibility, and the problem that a pure fluorine liquid swells some sealing materials is avoided.

The invention discloses a preparation method of spherical nano solid-state electrolyte ceramic powder, a solid-state electrolyte and a solid-state battery, and belongs to the technical field of new energy. The preparation method comprises the following steps: mixing an oil phase and a surfactant to obtain a mixed solution; adding a precursor aqueous solution into the mixed solution to obtain a reverse microemulsion; wherein the precursor aqueous solution comprises hydrates of other metal elements except the lithium element in the solid electrolyte; adding a precipitator into the microemulsion, and separating out precursor powder; and calcining the mixed powder obtained by mixing the precursor powder and a lithium source to obtain the spherical nano solid electrolyte ceramic powder. The solid electrolyte ceramic powder prepared by the method has smaller particle size and higher sphericity degree, the subsequent calcination temperature is obviously reduced compared with that of a traditional solid phase method, and the spherical nano solid electrolyte ceramic powder with excellent performance is obtained while the energy consumption is reduced.

The invention discloses a new energy lithium battery and a preparation method thereof, and relates to the technical field of new energy batteries, and the preparation method comprises the following steps: in an aprotic organic solvent, constructing a water-in-oil microemulsion system, and carrying out a reaction on an oil-water interface to synthesize a difunctional electrolyte additive; adding the difunctional electrolyte additive into the basic carbonic ester electrolyte, stirring and dissolving to obtain a functional electrolyte; assembling the high-nickel ternary positive electrode, the silicon-based negative electrode and the ceramic diaphragm by adopting a winding process, and injecting the functional electrolyte to obtain a to-be-formed battery cell; a to-be-formed cell is subjected to first charging and discharging treatment, and dynamic reversible cross-linked flexible solid electrolyte interfaces are formed on the surfaces of a positive electrode and a negative electrode through in-situ polymerization by accurately controlling an electrochemical window. The dynamic self-repairing interface is constructed on the surface of the electrode in situ, so that the contradiction among high energy density, high safety and long service life is fundamentally solved, and the cycle life, intrinsic safety and electrode structure stability of the battery are remarkably prolonged.

The invention relates to the technical field of water-absorbent resin, in particular to salt-resistant water-absorbent resin and a preparation method thereof. The preparation method comprises the following steps: weighing acrylic acid, acrylamide, sulfobetaine methacrylate, hexadecyl dimethyl allyl ammonium chloride, sodium alginate, a cross-linking agent, an initiator, an antioxidant, an emulsifier, polyethylene glycol diacrylate and nano montmorillonite; carrying out ultrasonic emulsification on hexadecyl dimethyl allyl ammonium chloride and an emulsifier in ethanol; mixing neutralized acrylic acid, acrylamide and sulphobetaine methacrylate, and introducing nitrogen to remove oxygen; adding sodium alginate for dissolving, and injecting the microemulsion and the organic montmorillonite; adding a cross-linking agent and polyethylene glycol diacrylate, and adding an initiator and an antioxidant; and cross-linking, drying and sieving to obtain a finished product. According to the invention, by reducing the proportion of the ion-sensitive components and forming a salt-resistant interpenetrating network through the organic montmorillonite, the salt resistance of the water-absorbent resin is ensured.

The invention belongs to the technical field of coal washing flotation reagents, and discloses a synthesis process of an environment-friendly coal washing flotation reagent foaming agent, and the synthesis process comprises the following steps: composite reaction; water phase fusion; according to the method, biodegradable alcohols such as pentanol and sec-octanol are adopted as main raw materials, and poloxamer and glycerol are matched, so that the problem of toxic residue of a traditional hydrocarbon foaming agent is avoided. In the synthesis process, low-boiling-point impurities are removed through molecular sieve filtration and a rotary evaporator, it is ensured that the purity of the raw materials is larger than or equal to 99.5%, the proportion of the final product deionized water reaches 40-50%, the use amount of an organic solvent is greatly reduced, nanoscale wrapping of alcohol molecules by an emulsifier OP-10 is achieved through a gradient water adding method and an ultrasonic-assisted emulsification technology, and the content of the alcohol molecules is reduced. And a microemulsion structure with high interfacial film strength is formed. After lauryl sodium sulfate is added as an auxiliary emulsifier, the strength of an oil-water interfacial film is improved by 30% or above, and the half-life period of foam is prolonged to 1.8 times of that of a traditional process.

The invention relates to the technical field of traditional Chinese medicine, in particular to traditional Chinese medicine meridian dredging massage cream and a preparation method thereof, myrrh (a monarch drug), kudzuvine root (a ministerial drug) and notopterygium root (an adjuvant drug) are used as core components, menthol, vanillyl butyl ether and other transdermal permeation enhancing systems are used as auxiliary materials, and an oil-in-water type microemulsion matrix is constructed. Through six innovations of'monarch-minister-assistant 'meridian targeted compatibility, three-dimensional transdermal permeation promotion and multi-component synergistic anti-inflammation, the effects of relaxing tendons, activating collaterals, dispelling wind and dissipating blood stasis are achieved. The preparation process adopts ultrasonic extraction and high-pressure homogenization technologies, and the integrity of active ingredients is reserved. The product is suitable for scenes such as cervical spondylosis, scapulohumeral periarthritis and rheumatic ostealgia and has the advantages of high transdermal efficiency, long-acting analgesia, good safety and the like, experimental verification shows that the transdermal amount within 24 hours is increased by 130%, the inflammatory factor inhibition rate reaches 89.2%, and the clinical effective rate is remarkably superior to that of commercially available products.

This invention relates to a camellia seed oil composition containing tetrahydrocurcumin and its application. The composition comprises tetrahydrocurcumin, camellia seed oil, phenylpropanol, and diisopropyl adipate. The present invention involves mixing the above components, heating and stirring until homogeneous, and then cooling to obtain the camellia seed oil composition containing tetrahydrocurcumin. This invention successfully solves the problems of poor stability and low active ingredient content in tetrahydrocurcumin compositions, improving the bioavailability of tetrahydrocurcumin in the prepared microemulsions, and can be applied in the preparation of cosmetics.

A novel formulation of trinexapac-ethyl is described. The formulation can be applied at higher concentrations and form a stable emulsion or lower concentrations and form a stable micro-emulsion. The formulation has greater than 400 grams of active ingredient per liter. The formulation can be applied in all situations where trinexapac-ethyl is used.

The application belongs to the technical field of fine chemical industry, and particularly relates to a cationic microemulsion water-repellent quick-drying agent and a preparation method and application thereof. The cationic microemulsion water-repellent quick-drying agent is prepared by using Arquad 2C-75 (dicoconut alkyl dimethyl ammonium chloride) as a core cationic component, compounding refined white oil, matching a surfactant, a coupling agent and deionized water to construct a microemulsion system, mixing an oil phase, preparing a water phase, primary emulsifying, high-pressure homogenizing and post-treating. The product prepared by the application has a contact angle greater than 110 degrees, a sliding time shortened by more than 31.4%, is stable without precipitation in the range of-10 DEG C to 50 DEG C, has a viscosity less than 100 cP and can be dissolved and used immediately, is compatible with an anion system, has no ethanol / toluene solvent, VOCs detection meets the limit value of GB38508-2020, and has excellent performance in water-repellent quick-drying on the surface of an automobile and a wide application range.

The present invention relates to: a method of improving the deposition of a conditioner on the hair and / or skin, the method comprising applying to the hair and / or skin a personal care composition comprising a microemulsion based on an alkyl (oligo) glycoside and a conditioner; and a personal care composition, in particular a hair care composition, comprising at least one surfactant, a silicone conditioner and a microemulsion based on alkyl (oligo) glycosides.

The application provides a denitration and CVOCs removal encapsulated bifunctional molecular sieve catalyst and a preparation method and application thereof. y The composite nanoparticle is a core, and the hierarchical porous molecular sieve is a shell layer x -BO y The hierarchical porous-zeolite bifunctional molecular sieve catalyst is prepared by coupling two methods of reverse microemulsion and one-pot two-step dry gel conversion. The catalyst exhibits excellent NO x / CVOCs cooperative catalytic removal activity and stability in a medium-low temperature range (180-520 DEG C), and is suitable for simultaneous purification and removal of NO x and CVOCs in flue gas of waste incineration power generation and hazardous waste incineration pyrolysis industries. The catalyst preparation method is simple, can improve the flue gas pollutant purification efficiency, reduce the industry operation energy consumption and save the production cost.

The invention relates to a self-generating carbon dioxide microbubble oil-displacing agent and a preparation method and application thereof, in particular to the technical field of oilfield development, and the self-generating carbon dioxide microbubble oil-displacing agent is prepared from microemulsion, water liquid and foam liquid according to the volume ratio of (0.1-1): (0.1-1): (0.1-1); the microemulsion comprises a first gas agent, a surfactant, an organic solvent and water; the water liquid comprises a second gas agent and water; the foam liquid comprises a foaming agent, a foam stabilizer and water. According to the self-generating carbon dioxide microbubble oil-displacing agent provided by the invention, a good oil-displacing effect can be realized by utilizing a synergistic effect among the components in the oil-displacing agent, so that the oil-displacing rate is remarkably improved; meanwhile, in the oil displacement process, the sub-agent in the oil displacement agent is injected in the form of microemulsion, and due to the controllability of the dosage of the traditional Chinese medicine in the microemulsion, a trace amount of carbon dioxide can be generated to form microbubbles when the stratum is in contact with another agent, so that the oil displacement effect is remarkably improved.

The invention relates to the technical field of biological medicine, and discloses rapamycin-loaded microemulsion gel as well as a preparation method and application thereof. The preparation method of the microemulsion gel comprises the following steps: dissolving N, N-dimethyl octadecyl carboxymethyl chitosan in a water phase, then adding an oil phase, a cosurfactant and rapamycin, and stirring to obtain rapamycin-loaded microemulsion; the preparation method comprises the following steps: dissolving a high polymer material in a PBS solution, heating until the high polymer material is completely dissolved, then adding dopamine, stirring for reaction, and finally dialyzing and freeze-drying to obtain the adhesive. And adding a gel matrix containing a thickening agent and an adhesive into the microemulsion, and stirring to obtain the rapamycin-loaded microemulsion gel. According to the prepared microemulsion gel, transdermal drug delivery of hydrophobic drugs is achieved, testis are coated with the microemulsion gel loaded with rapamycin, the blocking effect of damp-heat stress on differentiation and development of testis interstitial cells can be relieved, and the functionality of a male reproduction endocrine system is recovered.

The invention discloses a binary single-site material for controlling spatial distribution of active sites as well as a preparation method and application of the binary single-site material. The binary single-site material comprises SiO2 nanospheres, single-site metal encapsulated in the SiO2 nanospheres and single-site metal anchored on the surfaces of the SiO2 nanospheres, wherein the single-site metal includes at least one of Cu, Zr, Yb, Hf, Y, and Zn. The preparation method adopting a reverse microemulsion method has universality, a high-dispersion single-site catalyst of corresponding metal can be synthesized by changing the variety of coated organic metal salt, the problem that high-dispersion single-metal sites cannot be synthesized in a SiO2 bulk phase is solved, spatial distribution of active sites can be accurately controlled, and the preparation method is suitable for large-scale industrial production. And the catalyst inhibits the generation of a by-product ethylene, significantly improves the catalytic activity and butene selectivity through an ordered catalytic cascade reaction, and can better meet the field of ethanol-to-olefin catalysis.

Herbicide phytosanitary compositions formulated in the form of microemulsions, with low content of surfactants, high compatibility in ultra-low volume spray solutions, and methods for formulating said compositions and tank mixes.

The application discloses a food-grade O / W quercetin microemulsion and a preparation method and application thereof, and each component and weight percentage are as follows: 10%-42% of a surfactant, 2%-32% of an oil phase solution, and the balance of water; wherein the oil phase solution is composed of isopropyl myristate and ethanol, and the weight ratio of isopropyl myristate to ethanol is 1:1-4. The O / W microemulsion preparation method is simple, is a good carrier of active substances or functional substances represented by quercetin which has poor stability and water solubility, so that the stability of the active substances or functional substances in pharmaceutical preparations is improved, and the sustained release behavior is improved.

The present application relates to a kind of coix seed active ingredient extraction method and its steady-state microemulsion and its preparation method and application, the extraction method includes the following steps: b.coix seed coarse powder is added distilled water and mixed to form feed liquid, alpha-amylase is added, enzyme hydrolysis reaction is carried out, and extraction is carried out by ultrasonic treatment, and coix seed active ingredient extract is obtained;Wherein, the enzyme hydrolysis reaction temperature is 40~50 ℃.The present application aims to provide a kind of efficient, green, low-cost coix seed active ingredient extraction method, improves the extraction rate and retention rate of active ingredient, improves product stability, more suitable for industrial production.

The invention discloses traditional Chinese medicine granules with an auxiliary blood pressure lowering effect and a preparation method thereof. The traditional Chinese medicine granules are prepared by mixing uncaria, scutellaria baicalensis, semen cassiae, the root of kudzu vine, selfheal, leonurus, gastrodia elata, microcrystalline cellulose and a ginseng essential oil slow-release agent and then carrying out granulation and freeze-drying processes. Wherein the ginseng essential oil sustained-release agent is prepared by adopting ginseng essential oil and Tween 80 to form a nano microemulsion, then wrapping the nano microemulsion in a chitosan and sodium linoleate compound coating solution and performing freeze drying, and the ginseng essential oil sustained-release agent prepared in the mode can effectively prevent the ginseng essential oil from being in contact with oxygen to cause an oxidation phenomenon; the core functions of the ginseng essential oil sustained-release preparation are to control the release rate of active ingredients, reduce the administration frequency, maintain more stable blood concentration or active ingredient level, prolong the retention time of the medicine in gastrointestinal tracts, further promote absorption and improve the bioavailability.