814 results about "Microemulsion" patented technology

The invention discloses a hollow spherical assembly polymer, a carbon material and a preparation method and application of the hollow spherical assembly polymer and the carbon material, and belongs to the technical field of materials. The hollow spherical assembly polymer comprises a shell formed by assembling a plurality of small monomers and a cavity defined by the shell; the small monomers are polymer blocks with morning glory-shaped or spherical crown-shaped structures. By constructing an oil-in-water microemulsion template and adjusting the interaction type of a surfactant and a polymer precursor, a hollow spherical assembly material with various sizes and morphologies assembled by different monomers is controllably synthesized, so that the hollow spherical assembly material meets the application requirements of different fields, and the limitations of tedious steps, difficulty in morphology regulation and control and the like in the prior art are solved; meanwhile, one-pot synthesis is adopted in the method, secondary template removal is not needed, preparation is simple, and the prepared hollow spherical assembly polymer material and the hollow carbon material obtained by directly roasting the material have potential application in the fields of catalysis, biomedicine and the like.

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 the field of biological agents, in particular to a compound probiotic preparation rich in organic selenium and a preparation method of the compound probiotic preparation, and efficient synergistic delivery is achieved through plant micromolecule organic selenium extraction and a multi-layer microemulsion embedding technology. The preparation consists of a core active component, a carrier system and a curcumin compound. The plant micromolecular organic selenium is extracted from cardamine hupingshanesis and high-selenium corn flour through an HLUP technology, and the bioavailability is remarkably improved. A corn protein modified W / O / W microemulsion is adopted as a carrier, an outer layer membrane is stable in an acid environment, and an inner layer accurately releases selenium to small intestines; a protective agent composed of trehalose and glucose inhibits ice crystal damage, and glutaraldehyde crosslinking enhances the mechanical strength of the membrane. Curcumin and selenium synergistically enhance antioxidant and immunomodulatory functions, and promote phagocytic activity of macrophages. The stability and bioavailability bottlenecks of a traditional preparation are broken through, and an innovative scheme is provided for functional food development.

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 present invention belongs to the technical field of fiber materials, and relates to a composite fiber containing nano natural tea fibers, and a preparation method and application thereof. The raw materials for preparing the composite fiber include nano natural tea fibers and basic fiber pulp, and the nano natural tea fibers are mate nano fiber microemulsions. The present invention integrates nanotechnology into the preparation of natural tea fibers, and adopts a microemulsion method to simultaneously and evenly disperse a variety of effective ingredients in tea in the mate nano fiber microemulsion, so that the multifunctionality of the fabric can be effectively exerted; the microemulsion system has high uniformity and long-term stability, and during the spinning process, the nano tea fibers can be highly dispersed in the spinning solution without the need for additional surfactants, and the effect of the functional fabric finally obtained can be long-lasting. In addition, mate tea is rich in tea polyphenols and unique yerba mate alkaloids, which can further improve the comprehensive performance of the composite fiber.

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 invention belongs to the technical field of cosmetics, and particularly relates to a lipidosome composite microemulsion sun-screening agent, a preparation method thereof and application of the lipidosome composite microemulsion sun-screening agent in cosmetics. According to the invention, by selecting specific chemical sun-screening agents for matching, full-wave-band ultraviolet protection is realized, and the sun-screening effect is improved; a specific solid lipid matrix is selected, a chemical sun-screening agent is dispersed in a lipid bilayer by using a coating technology, irritation caused by direct contact with skin is reduced, meanwhile, release of the sun-screening agent is delayed, long-acting sun-screening and light stability are improved, and a product formed by combining with a specific preparation method is smaller in particle size, more uniform in component distribution and higher in stability. Therefore, a uniform film layer is formed on the surface of the skin and is tightly attached to the skin, penetration of ultraviolet rays is reduced, and the skin feeling light effect and the film-forming property at high temperature are improved. The sun-screening agent disclosed by the invention has the advantages of efficient ultraviolet protection, excellent stability and good skin feeling, and a new technical scheme is provided for the field of sun-screening cosmetics.

The invention relates to the technical field of pharmaceutical preparations, in particular to a docetaxel oral self-microemulsion composition and a preparation process thereof. The docetaxel oral self-microemulsion composition is prepared from docetaxel, an oil phase, a surfactant, a cosurfactant, a stabilizer and an antioxidant, the oil phase is caprylic / capric acid mono / diglyceride, medium chain triglyceride, caprylic acid propylene glycol ester or lauric acid propylene glycol ester. The docetaxel oral self-microemulsion composition provided by the invention has relatively high drug loading capacity, good physical and chemical stability and relatively high bioavailability, and is more suitable for clinical medication.

The invention discloses a benzimidazolyl Gemini surfactant as well as preparation and application of the benzimidazolyl Gemini surfactant. The benzimidazolyl Gemini surfactant is a symmetric gemini type compound formed by a benzimidazole group, a styrene group, a sulfonate group and an alkyl chain with a proper length, and the compound has a better oil displacement effect. The surfactant can also reduce the surface tension of a solution in a dose-dependent manner, has relatively strong interfacial activity, excellent shear restorability and wettability, is beneficial to improving the oil recovery rate, and is suitable for multiple aspects such as an oil-soluble viscosity reducer, an oil-displacing agent and a microemulsion internal phase in tertiary oil recovery. The invention provides a method for preparing a surfactant by sulfonation and neutralization after styryl benzimidazole and alkyl diethylene oxide are subjected to ring-opening reaction to obtain a Gemini intermediate, and the synthetic process route has the characteristics of high product surface activity, excellent rheological property and simple synthetic method.

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 an electrode material for purifying and disinfecting drinking water as well as preparation and application thereof, and belongs to the technical field of drinking water purification. An Ag nano structure and an Au nano structure are sequentially constructed on a plastic base material, the electrode material is endowed with excellent antibacterial and catalytic performance, the Ag nano structure is formed through acid treatment and precursor solution soaking, and the preliminary antibacterial performance is endowed; the antibacterial effect is enhanced by micro-emulsion soaking; the microemulsion A and the solution B are mixed to prepare a spraying solution, a stable Au nanostructure is formed after spraying, an electrochemical oxygen reduction reaction is promoted, the H2O2 generation efficiency is improved, hydroxyethyl ethylenediamine triacetic acid and acrylamide are used in cooperation, the Au dosage and the complexing temperature are adjusted, a microcosmic honeycomb structure is formed, and the H2O2 concentration is remarkably improved. The electrode material has antibacterial performance, also has excellent conductivity and catalytic activity, is stable in purification effect before and after use, can be repeatedly used, and has wide application prospects in the fields of drinking water purification and the like.

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 present invention relates to the field of pharmaceutics, and discloses a water-in-water deep eutectic solvent microemulsion, which comprises: a hydrophobic deep eutectic solvent, which is prepared by mixing at least two components according to a specific ratio, and the two components are respectively a terpenoid solvent and a fatty acid solvent; an emulsifier; an aqueous phase comprising an emulsifier and water; wherein the microemulsion is an oil-in-water type microemulsion, and the average particle size of the microemulsion is less than 300nm; the hydrophobic deep-eutectic solvent is a solvent prepared by mixing a diterpenoid solvent and a fatty acid solvent according to a weight ratio of 1: 9 to 9: 1. By adopting the deep eutectic solvent technology, the hydrophobic deep eutectic solvent is used for replacing a traditional oil solvent, the solubility of the quercetin is effectively improved, and the highest drug loading capacity of the quercetin in the preferable hydrophobic deep eutectic solvent can reach 23 mg / mL and is improved by 2000-3000 times compared with the highest drug loading capacity of the quercetin in water which is only 1 microgram / mL.

The present invention provides a cationic surfactant microemulsion and a preparation method thereof. The raw materials of the microemulsion include a surfactant and water, wherein the surfactant is composed of a quaternary ammonium salt cationic surfactant, a fatty amine polyoxyethylene ether, an alkyl pyrrolidone, and an isomeric alcohol ether. The microemulsion is used to improve oil recovery after flooding, and has a low surfactant usage ratio, does not require the addition of salt or alcohol as a main agent, is low in cost, and is applicable to formation water with a salinity of up to 90,000 mg / L, thus facilitating widespread application.

The invention provides a water lock removing agent suitable for a coal bed gas reservoir and a preparation method thereof, and the water lock removing agent suitable for the coal bed gas reservoir comprises the following components in percentage by mass: A, 0.05-5% of a fluorine-containing reverse wetting agent, B, 0.05-5% of a fluorine-containing reverse wetting agent, and C, 0.05-5% of a water lock removing agent. B, 0.1 to 30 percent of a surfactant; c, 1-50% of a polar organic solvent; and D, 15 to 98.85 percent of water. The coal bed gas reservoir water block removing agent provided by the invention adopts a full-liquid-phase microemulsion system, so that on one hand, the relatively strong adsorption performance on the coal rock surface and the capability of transporting to a reservoir deep pore throat are ensured, on the other hand, the wetting reversal effect on the coal rock solid surface is ensured, and the inner surface of the pore throat is endowed with relatively strong liquid discharge performance; it is guaranteed that the gas phase can be discharged from the pore throats under the small formation driving pressure, the gas phase permeability and the gas well yield are improved, and the gas reservoir stable production period is prolonged.

The invention relates to a skincare composition and microemulsion based on compound natural components of convalescent tomentosa and a preparation method of the skincare composition and the microemulsion. The skincare composition comprises the following extracts in parts by weight: 0.01-10 parts of a convalescent tomentosa extract, 1-6 parts of a calendula extract, 0.5-3 parts of a fucus extract and 0.2-2 parts of a myrrh resin extract. According to the scheme, firstly, through component optimization, a convalescent tomentosa extract is used as a main material, a calendula extract, a fucus extract and a myrrh resin extract are used as auxiliary materials, a composite plant synergistic matrix is constructed, and red skin relieving and rapid itching relieving are achieved through multi-target regulation and control; meanwhile, the technical improvement of an extraction method is combined, effective components of all the raw materials can be comprehensively extracted, the synergistic effect is achieved, and then preparation optimization is combined, so that application of the composition is facilitated.

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 belongs to the technical field of catalysts, and relates to a cerium oxide supported nickel catalyst and a preparation method and application thereof, and the catalyst is composed of a metal nickel active component and a cerium oxide carrier. The cerium oxide prepared by adopting a reversed-phase microemulsion method is dispersed in a nano-scale manner, has a large specific surface area and abundant oxygen vacancies on the surface, can realize high dispersion of metal nickel after loading nickel on the cerium oxide, has relatively high stability, and is beneficial to realizing efficient methanation of carbon dioxide hydrogenation. By changing the preparation conditions of the reversed-phase microemulsion, the number of oxygen vacancies on the surface of the catalyst can be effectively adjusted, and the CO2 hydrogenation reaction performance of the catalyst is regulated and controlled. The cerium oxide supported nickel catalyst prepared by the invention has the CO2 conversion rate of 83% and the CH4 selectivity of 97%, and shows excellent CO2 conversion rate and methane selectivity, which indicates that the cerium oxide-containing catalyst provided by the invention has excellent CO2 hydrogenation performance, shows excellent catalytic activity, product selectivity and stability, and can be used for preparing a catalyst for hydrogenation of CO2. And large-scale industrial application can be realized.

The invention relates to the field of preparation of micro-emulsions, in particular to a polysaccharide-protein composite stable high-bioavailability ferrous micro-emulsion as well as a preparation method and application thereof. The preparation method of the polysaccharide-protein composite stable high-bioavailability ferrous microemulsion comprises the following steps: adding mineral substances into water, mixing, and carrying out first stirring treatment to obtain a core material solution; adding starch sodium octenylsuccinate, whey protein isolate and polysaccharides into water, mixing, and sequentially carrying out heating treatment and second stirring treatment to obtain a wall material solution; mixing the core material solution, the wall material solution and an emulsifier, and sequentially carrying out third stirring treatment and homogeneous emulsification treatment to obtain an emulsion; and carrying out spray drying treatment on the emulsion to obtain the product. The polysaccharide-protein compounded stable high-bioavailability ferrous microemulsion has excellent embedding rate and storage stability, can effectively protect ferrous ions and reduce the generation of ferric ions, and is beneficial to improving the bioavailability of ferrous iron.

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.