316 results about "Ethanolamine" patented technology

The invention belongs to the technical field of hair care products, and particularly relates to composite acid gel for scalp care and a preparation method thereof. Salicylic acid, glycolic acid, piroctone azelate olamine salt, echinacea purpurea-lactic acid bacteria yeast, an emulsifier and water are combined, wherein the echinacea purpurea-lactic acid bacteria yeast is prepared by performing enzymolysis on echinacea purpurea through bacillus subtilis protease and then performing aerobic fermentation with lactic acid bacteria. Salicylic acid, glycolic acid and azelaic acid in the composite acid gel are compounded, so that stimulation of salicylic acid is weakened, and the effect of dissolving hair follicle grease is reserved; glycolic acid and azelaic acid are added to accelerate keratin metabolism, regulate sebum secretion and create safe and healthy shielding for the scalp environment, and polysaccharide and flavonoid compounds in the echinacea purpurea-lactic acid bacteria leavening are beneficial to exerting the anti-oxidation and immune regulation effects of the echinacea purpurea-lactic acid bacteria leavening. Therefore, the composite acid gel provided by the invention is green, safe and non-irritant, the preparation method is simple and convenient, and the composite acid gel can be used for inhibiting bacteria and reducing scalp inflammation.

The utility model relates to the technical field of chemical engineering, in particular to a pH value system of a lean solvent / stripping water heat exchanger, which comprises a lean solvent / stripping water heat exchanger, a reflux pipeline, a heat exchanger inlet line, a heat exchanger outlet line, a lean solvent / feeding heater, an extraction distillation tower, a first outlet line and a second outlet line, one end of the reflux pipeline is connected to an outlet I of the lean solvent / stripping water heat exchanger, and the other end is connected to an inlet I of the lean solvent / stripping water heat exchanger; a shell pass outlet valve, a solvent regeneration tower, a solvent recovery tower, a recovery tower top air cooler, a recovery tower top water cooler, a reflux tank, a steam stripping water pump, a stripping water flow meter, a front valve, a stripping water regulating valve, a rear valve and a shell pass inlet valve are sequentially arranged on the reflux pipeline. The stable pH value in the system is ensured when the lean solvent / stripping water heat exchanger is overhauled, so that water circulates in the system, and the economic loss caused by continuous injection of monoethanolamine into the system is reduced.

The invention belongs to the technical field of energetic plasticizer preparation, and particularly discloses a method for preparing N-butyl nitroxyethyl nitramine through ionic liquid nitration. The method comprises the following steps: mixing an ionic liquid nitrating agent with butyl ethanolamine to obtain a mixed solution; and mixing the mixed solution with a catalyst and acetic anhydride, reacting, and carrying out post-treatment to obtain the N-butyl nitroxyethyl nitramine. According to the method, the ionic liquid with stable properties is adopted as the nitrating agent, the reaction is mild when the ionic liquid is mixed with the butylethanolamine, violent heat release caused when fuming nitric acid is in contact with the butylethanolamine is effectively avoided, and the ionic liquid precursor can be recycled through simple extraction after the reaction.

The invention discloses a functional lipid compound for nano-liposome wrapping and a preparation method, and relates to the technical field of functional lipid compounds, the functional lipid compound comprises (a) a polyphenol-lipid covalent conjugate which is composed of a polyphenol active unit selected from curcumin, dihydroquercetin or derivatives thereof, and (b) a lipid covalent conjugate which is composed of a polyphenols active unit selected from curcumin, dihydroquercetin or derivatives thereof and a polyphenols active unit selected from curcumin, dihydroquercetin or derivatives thereof; the conjugate is covalently linked to a phosphatidyl ethanolamine or cholesterol skeleton through a cleavable linking group, and the conjugate can be integrated into a nano-liposome membrane and has the functions of structural support and biological activity; (b) a microenvironment-responsive functional phospholipid, which is a phospholipid derivative having a functional group responsive to an inflammatory microenvironment specific stimulus modified on a hydrophilic head group or a hydrophobic chain of a phospholipid molecule, the specific stimulus being selected from local pH < = 6.5, reactive oxygen species (ROS) concentration > = 10 [mu] M or matrix metalloproteinase MMP-2 / 9 overexpression; and (c) a bionic exosome membrane lipid component, wherein the bionic exosome membrane lipid component comprises sphingosine-based glycolipid or sulfated cholesterol separated from the plant-derived exosome.

The invention relates to the technical field of corrosion protection of petrochemical equipment, and particularly discloses an efficient neutralizing corrosion inhibitor and a preparation method thereof. The efficient neutralizing corrosion inhibitor is prepared from the following raw materials in parts by mass: 40-60 parts of a macromolecular corrosion inhibitor, 10-20 parts of a neutralizing agent, 10-15 parts of a surfactant, 5-10 parts of an auxiliary agent and water, the high-molecular corrosion inhibitor is formed by copolymerization of an alkenyl imidazoline quaternary ammonium salt monomer, an alkenyl sulfonate monomer and an alkenyl dicarboxylic acid monomer. The neutralizing agent comprises monoethanolamine and diethanolamine; wherein the use amount of the water meets the condition that the efficient neutralizing corrosion inhibitor is prepared into a solution with the solid content of 10%-12%, and at the moment, the pH value of the solution is 11.0-11.5. The high-efficiency neutralizing corrosion inhibitor prepared by the invention effectively realizes the synergy of low dosage and high corrosion inhibition rate.

The present application relates to a kind of carbon dioxide mineralization method and carbon dioxide mineralization device.The carbon dioxide mineralization method includes the following steps: mixing absorption liquid and industrial solid waste at room temperature, obtain mortar;Make mortar solid-liquid separation, obtain clear liquid and thick slurry;Carbon dioxide in flue gas is absorbed by clear liquid, obtain carbon-rich absorption liquid;Carbon-rich absorption liquid and thick slurry occur mineralization reaction at 180 DEG C-220 DEG C, obtain mineralized slurry;Make mineralized slurry solid-liquid separation, obtain mineralized ash and mineralized clear liquid;Wherein, absorption liquid includes inorganic base and organic base, organic base includes monoethanolamine, diethanolamine, triethanolamine, 3-methylaminopropylamine, N-methyl diethanolamine, piperazine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and 2-amino-2-methyl-1-propanolamine at least two kinds.The method greatly improves CO2 capture rate and CO2 utilization rate, and organic base consumption is less, absorption liquid regeneration energy consumption is low, and overall economy is good.

The invention discloses chlorinated polypropylene modified water-based acrylic resin with high adhesive force and water resistance and a preparation method of the chlorinated polypropylene modified water-based acrylic resin. The chlorinated polypropylene modified water-based acrylic resin is prepared from the following components in percentage by mass: 5-15% of chlorinated polypropylene, 20-30% of methyl methacrylate, 5-10% of isobornyl acrylate, 10-15% of methoxy polyethylene glycol monomethacrylate, 3-5% of acrylic acid, 0.5-1.5% of an initiator and 2-5% of hydroxyethyl acrylate. The cleaning agent is prepared from the following components in percentage by weight: 20-40% of triethanolamine, 3-8% of triethanolamine, 5-10% of acetone, 20-40% of sec-butyl acetate and 1-5% of deionized water. The optimal raw material composition and proportion are screened through a large number of experiments, the optimal synthesis process is preferably obtained through a large number of experiments, the conversion rate reaches up to 99%, and the solid content of the resin reaches 65% or above. The chlorinated polypropylene modified water-based acrylic resin with high adhesive force and water resistance has the advantages of excellent adhesive force, water resistance, storage stability and the like, and has a very good technical effect in comprehensive performance.

Treatment fluids and methods for dissolving titanium-iron oxides and iron oxides in a wellbore. A treatment fluid includes an activator selected from the group consisting of chlorophyll, pheophytin, hydroxylammonium chloride, dopamine, crown ethers, cryptands, ethanoloamine, trihydroxamate-containing siderophores, salts thereof, and any combination thereof, an acid and / or acid-generating agent, and an aqueous base fluid. The treatment fluid contacts a titanium-iron oxide and / or iron oxide to dissolve the titanium-iron oxide and / or iron oxide.

The invention discloses a flexible glass cutting fluid and a preparation method thereof, and the preparation method comprises the following steps: S1, adding cellobiose into DMF, then adding chloroacetic anhydride and pyridine, and carrying out a stirring reaction to obtain an intermediate; s2, adding the intermediate into DMF (Dimethyl Formamide), and then carrying out constant-temperature reaction on glycerol monocaprylate, 2-(2-hydroxyphenyl) benzothiazole and triethylamine to obtain a modifier; s3, uniformly mixing a modifier, sodium dioctyl sulfosuccinate and a polyoxyethylene polyoxypropylene block copolymer, so as to obtain a composite surfactant; s4, adding the composite surfactant, the propylene glycol, the defoaming agent, the sterilizing agent and the triethanolamine into the water, and uniformly stirring to obtain the cleaning agent. According to the prepared cutting fluid, the protection effect on a flexible glass base material and a surface functional layer of the flexible glass base material is remarkably improved while the excellent wettability is kept, microcrack generation and surface damage in the cutting process are reduced, and the cutting fluid is particularly suitable for precise glass processing of flexible display devices.

The invention relates to the technical field of petroleum and natural gas drilling engineering, in particular to a solid-free well killing fluid and a preparation method thereof, and the solid-free well killing fluid comprises the following raw materials in parts by weight: 80-100 parts of a base fluid, 25-35 parts of a composite additive, 8-12 parts of a soluble thickener, 6-10 parts of a liquid-phase anti-collapse agent and 3-5 parts of a lubricating aid. According to the high-density well killing fluid, a high-density system is constructed through the additive solution A of the composite additive, the specific gravity upper limit of a traditional salt weighting agent is broken through, the hydrotropy stabilizing effect of triethanolamine is combined, salting-out of high-concentration components is avoided, and the problem that specific gravity increase of traditional solid-free well killing fluid is limited is effectively solved; the system viscosity is increased, a liquid rubber plug can be formed, exchange dilution of the well killing fluid and residual sewage in a shaft is effectively blocked, performance degradation caused by dilution of the well killing fluid is avoided, and material waste caused by supplementing of the well killing fluid is also reduced.

The invention relates to a flame-retardant skin-friendly polyurethane sponge with in-situ reaction and bio-enzyme catalysis synergism. The water-based polyurethane foam is prepared from the following components: polyether polyol, diphenylmethane diisocyanate or toluene diisocynate, a chain extender, a high-efficiency foam stabilizer, a high-efficiency composite catalyst, water and ethanolamine phosphate, ethanolamine phosphate is added into water in advance, and then all the raw materials are mixed for polymerization foaming; after curing, spraying a spraying liquid consisting of phosphoethanolamine, regenerated protein and transglutaminase to generate a nano protein film, and synchronously performing vacuum suction to keep sponge pores unblocked. The preparation method has the advantages that a small amount of ethanolamine phosphate is added before polymerization foaming to serve as a phosphorus-nitrogen synergistic flame retardant and also serve as a catalytic cross-linking agent to participate in a reaction during polymerization, biological enzyme is added for catalysis after curing is finished, and the skin-friendly PU sponge with excellent flame retardance is prepared through in-situ polymerization reaction and biological enzyme enzymatic polymerization cooperation, and the sponge performance is not affected; the raw materials of the flame retardant come from biomass products and are environment-friendly and safe.

The invention discloses an efficient flame-retardant fire extinguishing agent for rapidly extinguishing a lithium battery fire and a preparation formula, and relates to the technical field of fire fighting. The fire extinguishing agent is composed of a liquid-phase component and a solid-phase component, wherein the liquid-phase component comprises ethylene glycol, triethanolamine, fluoroalkyl betaine, sodium dodecyl benzene sulfonate, a phosphate flame retardant, an orange peel extracting solution and purified water; the solid-phase component comprises dodecyl sulfate, ammonium phosphate, potassium perchlorate, sodium carboxymethyl cellulose, polyacrylamide, benzotriazole and the like. The method comprises the following steps: drying and activating solid-phase components after graded crushing, and stirring in a nitrogen atmosphere; carrying out segmented treatment on liquid-phase components, and carrying out ultrasonic emulsification on an orange peel extracting solution; and after solid-liquid mixing, carrying out vacuum defoaming, high-speed shearing dispersion and homogenization treatment. According to the lithium battery fire extinguishing agent, component particle sizes with different dissolution rates are matched through graded crushing, nanoscale dispersion is achieved through ultrasonic emulsification, the bubble residual rate is reduced through vacuum defoaming, and the problems that a traditional lithium battery fire extinguishing agent is low in insulativity, low in cooling efficiency and insufficient in flame retardant efficiency are solved.

A composition for carbon dioxide (CO2) capture includes 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, meglumine, or combinations thereof. A process of CO2 capture includes mixing a CO2-containing gas with the composition. A system includes a component for receiving a gas and the composition, which absorbs CO2 from the gas. A further composition includes a first amine solvent selected from 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, and meglumine and a second amine solvent independently selected from 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, meglumine, ethyl diethanolamine, dimethylethanolamine, piperidine, 2-amino-2-methyl-1-propanol, and monoethanolamine. A further process includes reacting CO2 with an amine selected from 2-aminocyclohexanol, cis-1,2-diaminocyclohexane, and meglumine.

The present application belongs to the processing technology of semiconductor devices, and relates to the materials used therein, in particular to a water-based stripping solution suitable for various structures, and a preparation method and application thereof. The stripping solution comprises the following components in parts by weight: 9-10 parts of an organic amine compound, 60-70 parts of an organic solvent, 0.5-1 part of a corrosion inhibitor, and 0.5-1 part of a modified EDTA compound; the organic amine compound is hydroxyethyl ethylenediamine, methyldiethanolamine, triethanolamine or diglycolamine. The stripping solution can be suitable for various structures, and the corrosion rate is reduced by more than 20% due to the combination of the EDTA compound and the corrosion inhibitor, and the stripping speed is improved.

The invention belongs to the technical field of metal processing lubrication, and provides high-extreme-pressure anti-wear emulsion type expanding oil and a preparation method of the high-extreme-pressure anti-wear emulsion type expanding oil. Comprising the following steps: compounding naphthenic base oil, polyalkyl benzyl sulfide, vulcanized vegetable oil, sodium dodecyl benzene sulfonate, octylphenol polyoxyethylene ether, benzotriazole and methyldiethanolamine according to specific parts by mass to construct a carrier-extreme pressure-emulsification-corrosion prevention integrated system; wherein the naphthenic base oil (the kinematic viscosity at 40 DEG C is 350-400 mm / s) provides a stable carrier, the polyalkyl benzyl sulfide (the sulfur content is 20-30%) is a chloride-free extreme pressure core, the composite emulsifier ensures the stability of the system, and efficient protection is realized through double-component corrosion prevention; according to the invention, the 3% emulsion can be stably placed for more than or equal to 2 weeks, the maximum non-seizure load is more than 1800N, the emulsion is suitable for expanding large-diameter steel pipes made of Q235A, X70 / X80 and the like and cold forming processing of metal, the problems of insufficient extreme pressure, unstable emulsification, poor environmental protection property and the like of the existing product are solved, and the processing quality and efficiency are improved.

The invention relates to a preparation method and application of a monolayer assembled bismuth subcarbonate nanosheet catalyst precursor. The preparation method comprises the following steps: 1) dissolving bismuth salt in water, adding triethanolamine, and stirring and mixing to form a uniform white solution; 2) adding an alkaline substance into the solution obtained in the step 1), and adjusting the solution to be alkaline; 3) heating and reacting the solution obtained in the step 2) to obtain a suspension containing white bismuth subcarbonate nanosheets; 4) carrying out solid-liquid separation on the suspension obtained in the step 3), collecting a white solid product, washing and drying to obtain a monolayer assembled bismuth subcarbonate nanosheet precursor; the morphology is formed by orderly assembling small-size nanosheets in a single layer in the two-dimensional plane direction, stacking and gathering of the nanosheets can be effectively inhibited, and exposure and structural stability of effective active sites are remarkably improved. When applied to the field of electrochemical carbon dioxide reduction, the catalyst can continuously run for 300 hours at the current density of 100 mA. Cm <-2 >, and the average formic acid Faraday efficiency reaches 82.6%.

The application discloses a synthesis method of aza-cyclic modified hydroxyalkyl diethanolamine borate linking agent, which comprises the following steps: (1) adding hydroxyalkyl diethanolamine and boric acid into a three-neck flask provided with a stirrer, a thermometer and a vacuum distillation device, and stirring and heating to react until no water is generated; (2) adding an aza-cyclic compound into the reaction system obtained in the step (1), increasing the reaction temperature, and removing water generated in the reaction by vacuum distillation when no water vapor is generated, so as to obtain a target product. The borate linking agent obtained by the synthesis method has good hydrolysis resistance, and when the borate linking agent is used in a hydroxyl-terminated solid propellant, the mechanical properties of the hydroxyl-terminated solid propellant can be effectively improved.

This invention relates to the field of hair care products technology, specifically disclosing a plant-based compound fermented oil-controlling and volumizing shampoo and its preparation process. The raw materials, by weight, include: 15-25 parts sodium lauroyl sarcosinate, 8-15 parts potassium cocoyl glycinate, 10-18 parts soapberry fruit fermentation liquid, 6-12 parts arborvitae leaf fermentation extract, 5-10 parts rosemary leaf fermentation liquid, 3-6 parts hydrolyzed oat protein, 2-5 parts panthenol, 0.1-0.5 parts piroctone olamine, 0.2-0.6 parts xanthan gum, 0.4-0.8 parts phenoxyethanol, and 40-60 parts deionized water. This invention utilizes a triple plant-based low-temperature anaerobic fermentation process, combined with a mild amino acid surfactant system, to provide multiple benefits including gentle cleansing, long-lasting oil control, hair root lifting, and scalp care. It is suitable for oily scalps and fine, limp hair.

The present invention belongs to the field of metal surface treatment and relates to a composite boronizing agent and a solid boronizing method for oil pipes. The composite boronizing agent comprises a boronizing agent and graphite. Calculated on the basis of mass percentage, the graphite is 10-14% of the mass of the boronizing agent. The boronizing agent comprises the following raw materials in mass percentages: boron source: 10-15%, catalyst: 12-20%, activator: 8-10%, dispersant: 4-6%, filler: 50-55%, and flow aid: 8-12%, and the dispersant is triethanolamine borate. In the composite boronizing agent of the present invention, the triethanolamine borate can remove impurities from an inner surface of an oil pipe, improve the boronizing effect and boronized layer quality, and form a protective film to prevent carburization, promote boronizing, and enhance boronized layer bonding strength. In addition, through the combined action of triethanolamine borate and graphite, the boronizing agent can be prevented from agglomerating or adhering to the inner surface of the oil pipe after boronizing treatment, and the uniformity of boronizing can further be improved.

The invention provides polyester resin for a transparent powder coating with excellent adhesive force and leveling as well as a preparation method and application of the polyester resin, and belongs to the technical field of powder coatings. The polyester resin is mainly prepared by taking diethylenetriamine pentaacetic acid, triethyl chlorosilane, 1, 6-hexanediol, N, N-diisopropylethanolamine, 2, 2-dimethyl propanol, neopentyl glycol, 3, 3-tetramethylene glutaric anhydride, 1, 4-cyclohexanedimethanol and the like as raw materials through polymerization. The obtained polyester resin chain segment has many branched structures, the number of amino groups and ester groups in the branched structures is large, the softening point is low, the low-temperature melting fluidity is good, the transparency is high, the adhesive force with a base material is good, then high-functionality diethylenetriamine pentaacetic acid is adopted for carboxyl end capping, the terminal carboxyl functionality is high, the curing activity is high, and the curing effect is good. After being cured with E-12 epoxy resin at low temperature, a coating film is good in leveling property and high in transparency, and can be used in the fields of thermosensitive base materials which are not easy to adhere, such as thin glass materials and the like.

The invention discloses an MDEA compound system for decarburization and a synergistic interaction method, and relates to the technical field of natural gas treatment and gas purification, in the MDEA compound system, N-methyldiethanolamine as a main agent accounts for 20-30% of the total mass of the compound system, Ce-MCM-41 accounts for 5-10% of the total mass of the compound system, an ionic liquid accounts for 5-10% of the total mass of the compound system, and the balance is water. The activating agent accounts for 1-3% of the total mass of the compound system, and the balance is water. When the MDEA compound system is applied to a process for removing carbon dioxide in natural gas, solid impurities, part of degradation products and generated anionic salt in an amine-rich solution and a barren solution are effectively removed through a three-stage filtering system and an ion exchange resin tower which are arranged in a process system. Therefore, through the cooperative scheme of the MDEA compound system and the decarburization process, the removal rate of carbon dioxide in the feed gas can be increased, the loss of N-methyldiethanolamine in the MDEA compound system in cyclic utilization can be reduced, and meanwhile, the blockage of equipment and pipelines can be prevented and controlled, so that the purposes of reducing the cost and improving the efficiency are achieved.

The invention discloses a two-phase carbon dioxide absorbent based on ionic liquid and application of the two-phase carbon dioxide absorbent. The two-phase carbon dioxide absorbent based on the ionic liquid is prepared from 9 to 21 parts of tetramethyl ammonium hydroxide glutamate, 14 to 21 parts of diethylenetriamine, 50 to 65 parts of N, N-dimethylethanolamine and 9 to 11 parts of water. According to the absorbent, the CO2 loading capacity is improved through the synergistic effect of an alkaline site of the ionic liquid and amine in the absorption stage, and an acid site of the ionic liquid serves as a built-in proton donor in the regeneration stage to promote decomposition of an absorption product, so that high absorption capacity and low regeneration energy consumption are synergistically achieved. The absorbent is high in COO absorption capacity, low in regeneration energy consumption, low in regeneration temperature and good in cycling stability, and an innovative solution is provided for solving the high-energy-consumption bottleneck of a traditional amine method carbon capture technology.

The application discloses a kind of corrosion and scale inhibitor sulfur removal agent and preparation method thereof, belong to sulfur removal agent technical field, by weight parts including following components: hydroxyl alkyl amine modified triazine compound 30~60 parts, polyaspartic acid scale inhibitor 10~25 parts, sodium gluconate 5~15 parts, ethylenediamine tetramethylene phosphonic acid sodium 3~10 parts, organic phosphonic acid corrosion inhibitor 2~8 parts and water 20~40 parts;The hydroxyl alkyl amine modified triazine compound is prepared by triazine sulfur removal agent and N-methyl diethanolamine or diethanolamine under 50~80 ℃ for 2~4 hours, wherein the molar ratio of triazine sulfur removal agent and hydroxyl alkyl amine is 1:0.3~0.8.The application is prepared by using hydroxyl alkyl amine modified triazine compound as core sulfur removal component, triazine sulfur removal agent and N-methyl diethanolamine or diethanolamine are reacted under specific temperature and time, which greatly improves the capture activity and reaction rate of hydrogen sulfide, and improves water solubility and dispersibility, realizes efficient sulfur removal.

This invention discloses an anionic hydroxyl silicone oil emulsion and its preparation method, relating to the field of polysiloxane emulsion technology, and belonging to patent classification number C08G77 / 04. The preparation method is as follows: Triethanolamine dodecylbenzenesulfonate salt, tridecyl alcohol polyether, and deionized water are mixed and dissolved, heated, and polydimethylsiloxane alcohol is added under high-speed shearing for homogenization. Water is added and the reaction is maintained at a constant temperature to obtain a basic emulsion. γ-(methacryloyloxy)propyltrimethoxysilane is added dropwise to react and obtain an interface-reinforced emulsion. Acrylamide, N-hydroxymethylacrylamide, etc., are pre-emulsified and then added to the interface-reinforced emulsion with ammonium persulfate under nitrogen protection. Polymerization forms a cross-linked polymer shell. After cooling, tert-butylhydroquinone and disodium ethylenediaminetetraacetate are added to obtain an antioxidant emulsion. Phenoxyethanol and octyl glycol are added to obtain the final emulsion. This method significantly improves the thermal stability of the emulsion through the synergistic effects of composite emulsification, interface reinforcement, shell protection, and antioxidant properties, making it suitable for high-temperature environments.

The present application relates to the field of natural gas decarburization, and discloses a decarburization solvent, a decarburization method and system of carbon-containing natural gas, the decarburization solvent comprising a main agent, an activator and an auxiliary agent; wherein the main agent is N-methyldiethanolamine, the activator comprises a primary amine and a secondary amine, and the auxiliary agent is selected from at least one of potassium sorbate, sodium sorbate and sodium sulfite.The decarburization solvent and the decarburization method provided by the present application can not only make the absorption and regeneration equipment flexible to follow the change of the CO2 content of the raw gas in the natural gas development process and expand, but also avoid the corrosion and foaming of the tower equipment in the conventional process; meanwhile, the absorption and regeneration performance of the decarburization solution can be improved under the condition of meeting the purification index, and the regeneration heat consumption and the power consumption for pressurization of the amine liquid circulation can be greatly reduced.

The presently claimed invention relates to an alkaline composition for cleaning a substrate comprising i) copper or copper alloy and ii) cobalt or cobalt alloy, the composition comprising: a) at least one pH adjustor selected from diglycolamine, 4,4-diethoxy-N,N-dimethyl-1-butanamine, 3-dimethylaminopropan-1-ol, dimethylaminoethoxyethanol, N,N-dimethylisopropanolamine, ethylethanolamine, N-methyldiethanolamine, 2-(2-(methylamino)ethoxy)ethanol, 3-(methylamino)propane-1,2-diol, 2-[2-[2-(2-methoxy- ethoxy)ethoxy]ethoxy]ethylamine, 2-[2-(2-aminoethoxy)-ethoxy]-ethanol, N-butyldiethanolamine, diisopropanolamine, N-methyldiisopropanolamine, monoethanolamine, 3-dimethylamino-1,2-propandiol, 2- amino-1-butanol, 2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethanol, prolinol, 1-methyl-2-pyrrolidinemethanol, 1-methyl-2-pyrrolidinemethanol, 1-methyl-3-pyrrolidinol, 2-amino-2-methyl-1-propanol, N,N-dimethylethanolamine, butylethanolamine, diethylethanolamine, 3-methoxypropylamine, 4-(2-hydroxyethyl)morpholine, 4-(dimethylamino)cyclohexanol, 2-amino-2-methyl-1, 3-propanediol, or diisopropylamine; b) at least one complexing agent selected from C2 to C12 hydrocarbon having at least two sulfonic acid or carboxylic acid groups; c) at least one polymeric dispersing agent having a weight average molecular weight ≥ 1000 g / mol; and d) a solvent comprising water.

The invention relates to the field of electrocatalytic materials, in particular to an anion modified NiCo hydroxide electrocatalytic material and application thereof. The NiCo hydroxide modified by phosphate radicals and other anions is synthesized through a two-step hydrothermal method, and the performance of the NiCo hydroxide for preparing amide through electro-catalysis ethanolamine oxidative coupling is studied. Taking the NiCo hydroxide modified by phosphate as an example, under the optimal condition, the productivity and Faraday efficiency of acetamide achieved by the NiCoPO catalyst reach the maximum value and are superior to those reported at present. It is found that the catalytic activity and stability of the catalyst can be remarkably improved through introduction of anions, and the yield and Faraday efficiency of acetamide in five cycles are kept relatively stable. Meanwhile, NiCoPO can efficiently catalyze oxidative coupling of other long-chain alcohols and aromatic ring alcohols with ammonia. The invention provides a new thought and method for developing an efficient and stable electrocatalyst, and also provides powerful support for industrial application of alcohol oxidative coupling preparation of organic compounds such as amide and the like.

This invention discloses a soothing and repairing composition and its application, comprising the following raw materials: phytosterols, chamomile extract, hydrolyzed sodium hyaluronate, tocopherol, ceramide NP, triethanolamine, lactobacillus, macadamia seed oil, magnolia alcohol, matricaria flower extract, maltodextrin, lecithin, phosphatidylcholine, ascorbyl palmitate, inulin root juice, arginine / lysine polypeptide, squalane, jojoba seed oil, scutellaria baicalensis root extract, polygonum cuspidatum root extract, fructose, glycerin, p-hydroxyacetophenone, butylene glycol, acrylate / C10-30 alkanol acrylate crosspolymer, α-glucan oligosaccharide, 1,2-hexanediol, and water as the balance. Compared with the prior art, the soothing and repairing composition prepared by this invention has the effects of rapidly rebuilding the skin barrier, regulating skin immune function, improving skin microecology, synergistic effect, and rapid skin repair.

The invention discloses a drug loading capacity detection method for drug loading vesicles, and belongs to the technical field of biomedicine.The method comprises the steps that Fe3O4 (at) S < O2 > composite magnetic beads with the surfaces modified with phosphatidyl ethanolamine derivatives serve as enrichment carriers, a Cy5 fluorescent dye and a Cu-MOF nano-enzyme-drug aptamer probe are used for constructing a double-signal detection system, and the detection system is used for detecting the drug loading capacity of the drug loading vesicles; quantification is realized through magnetic bead affinity separation, double-signal labeling, catalytic color development, fluorescence correction and drug loading capacity conversion, and the method comprises the following specific steps: preparing affinity magnetic beads and double-signal probes, preparing blank and standard drug loading vesicles, and verifying the integrity; mixing a drug-loaded vesicle sample with the affinity magnetic beads, incubating, performing magnetic separation and washing, and sequentially performing double-signal labeling and purification; tMB-H2O2 substrate is added for reaction, the absorbance of 450 nm and the fluorescence intensity of 670 nm are measured, after blank correction, the three-dimensional regression equation is introduced to calculate the drug concentration, the drug loading capacity is obtained by combining the concentration of the vesicles, the completeness and purity of the vesicles can be synchronously verified, the anti-interference capacity is high, and the method is suitable for detection of drug loading vesicles of different sources.

This application relates to the field of waterborne cathodic electrophoretic coating technology, specifically disclosing a bisphenol A epoxy-polyetheramine composite matte electrophoretic emulsion and its preparation method. The bisphenol A epoxy-polyetheramine composite matte electrophoretic emulsion comprises the following raw materials in parts by weight: 30-40 parts E-51 epoxy resin, 8-10 parts bisphenol A, 9-11 parts bisphenol A polyoxyethylene ether, 0.08-0.12 parts benzylamine, 2.5-3.5 parts methylethanolamine, 0.8-1.2 parts diethylene glycolamine, and 2.5-3.5 parts ketimine. This application uses E-51 epoxy resin, bisphenol A, and bisphenol A polyoxyethylene ether as the matrix skeleton, and obtains an epoxy equivalent prepolymer after chain extension catalyzed by benzylamine. At the same time, toluene diisocyanate is reacted with diethylene glycol butyl ether, diethylene glycol ethyl ether, and trimethylolpropane polyoxyethylene ether to prepare a blocked crosslinking agent, thereby achieving a uniform internal matting effect without the addition of external matting powder.