360 results about "Diethanolamine" patented technology

The invention belongs to the technical field of flame-retardant macromolecules, and particularly relates to intrinsic heat-conducting flame-retardant recycled epoxy resin and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out a reaction on diethanol amine and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) to obtain an intermediate A; and (2) carrying out condensation polymerization on the intermediate A and phenylphosphonic acid to prepare the phosphate-terminated polyester flame retardant (PEF). And (3) carrying out epoxidation on 4, 4 '-biphenol to prepare the liquid crystal epoxy precursor LEP. And (4) mixing PEF, LEP and 3, 3 '-dithiodipropionic acid, and heating and curing to prepare the epoxy resin. The prepared epoxy resin has intrinsic heat conduction, flame retardance and efficient recoverability, and is a high polymer material with great potential.

The invention discloses an organic amine composite absorbent for carbon capture and application thereof, and belongs to the technical field of carbon dioxide capture, the organic amine composite absorbent for carbon capture is in a solution state and comprises the following components: a main agent, an auxiliary agent, an accelerant A, an accelerant B and water; wherein the mass ratio of the main agent to the auxiliary agent is 2: (1-2); the mass ratio of the auxiliary agent to the accelerant A is 2: (1-2); the mass ratio of the accelerant A to the accelerant B is 2: (1-2); the total mass concentration of the main agent, the auxiliary agent, the accelerant A and the accelerant B in the organic amine composite absorbent for carbon capture is 30-40 wt%; the main agent is selected from N-methyldiethanolamine or N, N-diethyl ethanolamine, the auxiliary agent is selected from piperazine or hydroxyethyl ethylenediamine, the accelerant A is selected from triethylene glycol monomethyl ether and / or ethylene glycol monomethyl ether, and the accelerant B is selected from ethyl butyl ether and / or isobutyl ether. The organic amine composite absorbent for carbon capture has a wide application prospect in removal of carbon dioxide in flue gas.

The invention discloses a hyperbranched water reducing agent for high-tensile wet joint UHPC (Ultra High Performance Concrete) as well as a preparation method and application of the hyperbranched water reducing agent, and belongs to the technical field of concrete admixtures. The preparation method comprises the following steps: mixing pentaerythritol and maleic anhydride, adding a catalyst p-toluenesulfonic acid, and carrying out an esterification reaction to prepare an esterification product; carrying out amidation reaction on the esterification product, diethanol amine and a catalyst sodium ethoxide to obtain a prepolymer; acrylic acid, maleic anhydride and the prepolymer are dissolved in deionized water, an initiator ammonium persulfate is added for a free radical copolymerization reaction, and a main chain polymer is obtained; carrying out phosphorylation reaction on the main chain polymer and phosphorus pentoxide to obtain a phosphorylated main chain polymer; the phosphorylated main chain polymer, methoxypolyethylene glycol and a catalyst p-toluenesulfonic acid are subjected to an etherification reaction, a hyperbranched comb-shaped polymer water reducing agent solution is obtained and then subjected to aftertreatment, and the water reducing agent is prepared. According to the hyperbranched comb-shaped polymer water reducing agent prepared by the preparation method disclosed by the invention, the problems of poor flowability and high viscosity of ultra-high performance concrete (UHPC) are solved by combining a linear side chain of a comb-shaped structure and a three-dimensional branch of hyperbranched topology.

The invention discloses an alkali-free accelerator and a preparation method and application thereof in the technical field of concrete additives, and the alkali-free accelerator provided by the invention comprises the following components in percentage by mass: 40%-50% of aluminum sulfate, 10%-15% of magnesium sulfate, 0.2%-0.6% of diethanol amine, 0.5%-1% of catechol-4-ammonium sulfonate, 5%-10% of a stabilizer and the balance of water. The stabilizer comprises silicate dispersion liquid and silica sol. The alkali-free accelerator provided by the invention can be used for spraying concrete, the mixing amount of the alkali-free accelerator is generally 4-6% of the mass of cement, the alkali-free accelerator is good in rapid setting effect and has excellent early and later compressive strength, and meanwhile, the alkali-free accelerator has relatively excellent stability.

The present invention belongs to the technical field of waterborne polyurethane, and specifically relates to a method for synthesizing an internally cross-linked cationic waterborne polyurethane emulsion. The method comprises the following steps: 1) reacting glycidol and diethanolamine until the infrared spectrum analysis shows that the glycidol and diethanolamine are at 908 cm ‑1 and 845cm ‑1 The epoxy groups disappear, the reaction is stopped, and the product EDEOA, a tertiary amino crosslinking agent, is obtained as a light yellow viscous liquid; 2) polyol and diisocyanate are added to a reactor and heated and kept warm under stirring for reaction; 3) solvent, tertiary amino crosslinking agent, tertiary amino small molecule alcohol amine chain extender, solvent and catalyst are then added to react to obtain a polyurethane intermediate; 4) a neutralizing agent is then added to the reaction system for neutralization reaction, and the temperature is lowered after the reaction is completed; 5) water is added to quickly disperse the mixture uniformly, and the solvent is removed in vacuo to obtain a waterborne polyurethane emulsion. The present invention mainly solves the technical problems existing in the synthesis of cationic waterborne polyurethanes, such as poor emulsion stability, low film mechanical properties, and poor water and solvent resistance.

The invention provides a fire-resistant inorganic fiber cotton board and a preparation method thereof, and belongs to the technical field of fire-resistant materials. The preparation method comprises the following steps: carrying out acid leaching treatment on sepiolite powder by using phosphoric acid, loading ammonium polyphosphate, drying and crushing to obtain a product A; enabling DOPO to react with gamma-aminopropyltriethoxysilane, and stirring and dissolving to obtain a product B; methyltrimethoxysilane and diethanol amine are subjected to hydrolytic polycondensation, dibutyltin dilaurate is added for continuous reaction, and a product C is obtained; combining raw materials including sodium silicate, potassium silicate, the product A, the product B, the product C and the like to prepare a curing liquid; melting and centrifuging the slag into cotton, and carrying out wet forming to obtain an inorganic fiber cotton plate rough blank; and the inorganic fiber cotton board rough blank is subjected to vacuum dehydration, then a curing liquid is sprayed, and the fireproof inorganic fiber cotton board is obtained after drying. The inorganic fiber cotton board is subjected to double-sided spraying by adopting the new curing liquid, so that the fireproof performance is high, and the mechanical property of the inorganic fiber cotton board can be enhanced.

The invention discloses a method for recovering high-purity fluorine and silicon from fluorine-silicon slag and co-producing a low-alkali fluorine-free accelerator, which comprises the following steps: S1, dissolving the fluorine-silicon slag in a sodium hydroxide solution to obtain a solution A; s2, adding dilute sulphuric acid into the solution A, reacting until gel is obtained, and filtering to obtain filtrate A and high-purity silicon dioxide gel; s3, adding calcium sulfate and EDTA (Ethylene Diamine Tetraacetic Acid) into the filtrate A, stirring and reacting, and filtering after the reaction is finished to obtain calcium fluoride and filtrate B; and S4, taking clear water, heating, carrying out heat preservation, then adding aluminum sulfate, lithium sulfate, diethanol amine and the filtrate B obtained in S3, continuously stirring until the aluminum sulfate is completely dissolved, then adding hydrated magnesium silicate, continuously carrying out heat preservation stirring, and obtaining the low-alkali fluorine-free accelerator after stirring is finished. The method is simple in process and easy to implement industrially, and fluoride and silicon oxide obtained through separation are high in purity and beneficial to follow-up extension application; more importantly, high-value recycling of the fluorosilicon slag is achieved, and the problems of stockpiling waste and environmental pollution of the fluorosilicon slag are solved.

The invention discloses a temperature-resistant and salt-resistant tackifier and a preparation method thereof, and relates to the technical field of fracturing fluids. The preparation method of the temperature-resistant and salt-resistant tackifier comprises the following steps: taking a first monomer and diethanol amine to carry out epoxy ring-opening reaction, and after the reaction is finished, separating and purifying to obtain an intermediate; taking the intermediate, adding a quaternization reagent for quaternization reaction, and then separating and purifying to obtain an active monomer; the first monomer is one of allyl alcohol glycidyl ether, acrylic acid glycidyl ether and methacrylic acid glycidyl ether, and the quaternization reagent is one of halogenated carboxylate or halogenated sulfonate; the preparation method comprises the following steps: dissolving acrylamide, an active monomer and unsaturated phosphate, and carrying out free radical polymerization under the action of an initiator. The tackifier provided by the invention has good temperature-resistant and salt-resistant effects, and can tolerate salt water with mineralization degree of 120,000 mg / L and high temperature of 150 DEG C.

The invention discloses a multi-source solid waste-based cementing material and a preparation method thereof, and relates to the technical field of solidified organic matter soft soil cementing materials. The cementing material is prepared from the following raw materials: carbide slag, desulfurized fly ash, yellow phosphorus slag, high-activity and high-stability steel slag, modified red mud, alkaline residues, desulfurized gypsum, mineral slag and calcium sulphoaluminate; the high-activity and high-stability steel slag is prepared by carrying out steel slag preliminary stabilization treatment and steel slag excitation activation on liquid steel slag; exciting and activating the steel slag: preparing high-activity and high-stability steel slag from the stabilized steel slag, the modified ettringite particles, aluminum sulfate, a polycarboxylate superplasticizer, hexadecyl triethyl ammonium bromide and potassium hydroxide; the modified red mud is prepared from red mud, magnesium hydroxide, N-methyldiethanolamine, desulfurized fly ash, calcium oxide and a ferric chloride solution; the modified ettringite particles are prepared from polyvinyl alcohol and N-beta-aminoethyl-gamma-aminopropyl trimethoxy silane as a modifying agent. The preparation method comprises the following steps: preparing the modified ettringite particles; according to the multi-source solid waste-based cementing material, the compressive strength and the water stability coefficient of the solidified organic matter soft soil are effectively improved.

The invention discloses dynamic reversible hydrogen bond regulation type nano calcium carbonate as well as a preparation method and application thereof. The preparation method comprises the following steps: preparation of nano calcium carbonate slurry: treating limestone to obtain the nano calcium carbonate slurry; synthesizing a dynamic hydrogen bond modifier: mixing hexamethylene diisocyanate and diethanol amine, adding a catalyst, and reacting to obtain a ureido-containing prepolymer; adding glycerol and monobutyl phosphate into the prepolymer for further reaction to obtain an intermediate; mixing the intermediate with polyethylene glycol, and reacting to obtain a dynamic hydrogen bond modifier; and preparing a nano calcium carbonate product: adding a dynamic hydrogen bond modifier into the nano calcium carbonate slurry, stirring for reaction, and then carrying out filter pressing dehydration, drying and crushing to obtain the nano calcium carbonate product. After the prepared nano calcium carbonate product is applied to the automobile primer, synergistic balance of high yield value and low Bingham viscosity of the automobile primer is realized, and performance improvement and constructability are well coordinated.

The invention discloses a medical antibacterial antistatic modified polyester cotton type fabric and a preparation method thereof, and relates to the field of fiber fabrics. When the medical antibacterial and antistatic modified polyester cotton fabric is prepared, pretreated lignin and p-aminosalicylic acid react to prepare pre-modified lignin; reacting the pre-modified lignin, aniline and p-aminosalicylic acid to obtain modified lignin; the preparation method comprises the following steps: reacting methyldiethanolamine with diethyl chloromethylphosphate to prepare an antibacterial flame-retardant monomer; terephthalic acid, ethylene glycol and the antibacterial flame-retardant monomer react to prepare modified polyester; the modified polyester and the modified lignin are extruded by an extruder and then spun and woven into the fabric. The medical antibacterial anti-static modified polyester cotton fabric prepared by the invention has good anti-static, flame-retardant, antibacterial and anti-light aging properties.

The invention provides a nano liquid soil stabilizer as well as preparation and application thereof. The nano liquid soil stabilizer comprises 6-20 parts of a modifier; 4-20 parts of a stabilizer; 0.5 to 2 parts of nano particles; 10 to 20 parts of an active agent; 1-2 parts of an ion stabilizer; 2-11 parts of a dispersant; 2-15 parts of an accelerant; the stabilizer comprises one or more of isopropanol, ethanol, propylene glycol and ethylene glycol; the nano particles comprise silicon dioxide or aluminum oxide with the particle size of 10-100 nm; the ion stabilizer is one or more of sodium chloride, potassium chloride and sodium sulfate; the accelerant is one or more of triethanolamine oleate, triethanolamine, isopropanolamine and diethanol amine. The soil stabilizer is composed of the specific stabilizer, the nano particles, the ion stabilizer and the accelerant, the organic modifier containing polar groups is introduced, the specific organic modifier is adsorbed and acts on the surfaces of the nano particles by means of intermolecular force, the dispersion effect of the organic modifier is improved, the compactness of soil is remarkably promoted, and the mechanical strength and water stability of the soil are improved.

The invention discloses a degradable epoxy resin insulating material for electrical equipment as well as a preparation method and application of the degradable epoxy resin insulating material, and relates to the technical field of functional polymer materials. The degradable epoxy insulating material is prepared from an epoxy monomer, a transesterification catalyst N-methyldiethanolamine and an anhydride curing agent. Compared with a material prepared by a traditional method, the material has more excellent insulating property and mechanical property, the breakdown strength can reach up to 48.2 kV / mm, the dielectric loss is as low as 0.00116, the tensile strength reaches up to 93.5 Mpa, and the thermal stability is equivalent to that of traditional epoxy resin. Meanwhile, the epoxy resin disclosed by the invention can realize hot-pressing remolding recovery and chemical degradation recovery under mild conditions by virtue of a dynamic ester exchange reaction, and the performance retention rate gt of the physically regenerated resin is gt; the performance retention rate of the chemically regenerated resin is gt; 87%. According to the invention, a high-performance and sustainable new scheme can be provided for an electrical equipment insulating material.

The invention discloses sorbitan oleate modified castor oil-based waterborne polyurethane and a preparation method, and belongs to the technical field of paints.Castor oil is used as a soft segment, isophorone diisocyanate is used as a hard segment, and the isocyanate index of polyurethane is fixed to be about 1.1; the preparation method comprises the following steps: introducing sorbitan oleate with rigid furan and an aliphatic hydrophobic side chain into a polyurethane molecular network by adopting a prepolymerization method, and preparing a series of sorbitan oleate modified castor oil based cationic waterborne polyurethane emulsions by adopting N-methyldiethanolamine as a cationic hydrophilic chain extender and 1-4 butanediol as a micromolecular chain extender. According to the sorbitan oleate modified castor oil-based waterborne polyurethane and the preparation method, sorbitan oleate is introduced into a polyurethane molecular network, so that the mechanical property of a castor oil-based waterborne polyurethane material is effectively improved, and the water resistance and corrosion resistance of the castor oil-based waterborne polyurethane material are improved.

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 invention relates to the technical field of coating production, in particular to a preparation method and device of polyether amine modified waterborne epoxy heavy anti-corrosion coating. The polyether amine modified waterborne epoxy heavy anti-corrosion coating is prepared from the following ingredients in parts by mass: 30 to 35 parts of modified bisphenol A epoxy resin, 3 to 8 parts of polyether amine modified waterborne epoxy resin, 0.7 to 1 part of dispersing agents, 0.05 to 0.1 part of defoaming agents, 15 to 20 parts of pigments, 5 to 10 parts of anti-rust materials, 7 to 20 parts of filling materials, 0.5 to 1 part of flash rust prevention auxiliary agents, 0.5 to 1 part of polyurethane thickening agents and 0.1 to 0.3 part of base material wetting agents. 3 to 5 parts of dipropylene glycol butyl ether; and 10 to 15 parts of deionized water. The preparation method comprises the following steps: carrying out chemical modification on epoxy resin, carrying out chain extension by using diethanolamine to increase the flexibility of the epoxy resin so as to obtain modified bisphenol A epoxy resin, carrying out a reaction by using polyether amine so as to prepare polyether amine modified epoxy resin with an amphiphilic structure, adding an auxiliary agent, and carrying out full mixing so as to obtain the waterborne epoxy heavy anti-corrosion coating with excellent performance.

This invention relates to the field of coating production technology, specifically to a method and apparatus for preparing a polyetheramine-modified waterborne epoxy heavy-duty anti-corrosion coating. The polyetheramine-modified waterborne epoxy heavy-duty anti-corrosion coating comprises, by weight, 30-35 parts of modified bisphenol A epoxy resin, 3-8 parts of polyetheramine-modified waterborne epoxy resin, 0.7-1 parts of dispersant, 0.05-0.1 parts of defoamer, 15-20 parts of pigment, 5-10 parts of rust inhibitor, 7-20 parts of filler, 0.5-1 part of flash rust inhibitor, 0.5-1 part of polyurethane thickener, 0.1-0.3 parts of substrate wetting agent, 3-5 parts of dipropylene glycol butyl ether, and 10-15 parts of deionized water. This invention first chemically modifies epoxy resin by using diethanolamine for chain extension to increase its flexibility, thereby obtaining modified bisphenol A epoxy resin. Simultaneously, polyetheramine is used for its reaction to prepare polyetheramine-modified epoxy resin with an amphiphilic structure. After adding additives and mixing thoroughly, a high-performance waterborne epoxy heavy-duty anti-corrosion coating is obtained.

A briquette and binder for use in making the same are disclosed. The briquette including: a ferrous or ferro-alloy steel by-product; a binder mixture making up about 0.025% to about 10% of a batch weight, the binder mixture including: a polyvinyl alcohol resin comprising about 0.025% to about 30% of the binder mixture; a sodium hydroxide and diethanolamine phenolic resin comprising about 1% to about 20% of the binder mixture; and water making up the remainder of the binder mixture; a resin powder comprising about 0.01% to about 10% of the batch weight; and where the briquette, when cured, includes about 0.05% to about 10% of the binder mixture.

The invention discloses a low-temperature early-strength low-viscosity liquid accelerator and a compound production process thereof, and relates to the technical field of concrete admixtures. The accelerator is formed by compounding a basic framework component, a rheological stabilizing component and a low-temperature early strength component. The basic framework component comprises an inorganic aluminum salt coagulant, anhydrous magnesium sulfate, diethanol amine and water; the rheological stabilizing component comprises liquid polyaluminum sulfate, an amphoteric inner salt viscosity reducer and cationic nano silicon dioxide sol; the low-temperature early-strength component comprises water-soluble organic aluminum salt, zirconyl sulfate, lithium acetate and water. The amphoteric inner salt viscosity reducer is matched with the cationic nano silicon dioxide sol, so that the rheological stability of the accelerator under a low-temperature condition is improved; through cooperation of the water-soluble organic aluminum salt, the zirconyl sulfate and the lithium acetate, the early strength development capability of the accelerator under a low-temperature condition is improved.

The present invention relates to an absorbent for capturing carbon dioxide, and more particularly, to an absorbent for capturing carbon dioxide, which is characterized by comprising a liquid amine compound, a solid amine compound, and water, the liquid amine compound comprising monoethanolamine and methyldiethanolamine, the solid amine compound being piperazine, and the water being water. According to the present invention, the concentration composition ratio of piperazine and methyldiethanolamine falls within a given range so as to provide excellent absorption rate and circulation capacity while preventing crystallization of a fresh absorbent in normal temperature and low temperature environments, and ensuring smooth gas-liquid exchange in an absorption part and a regeneration part by reducing the viscosity.

The invention discloses a water body composite phosphorus locking agent and a preparation method thereof, and belongs to the technical field of water quality treatment. The composite phosphorus locking agent for the water body comprises the following raw material components in parts by weight: 0.5-1.5 parts by mass of modified zirconium hydroxide, 4 parts by mass of sodium alginate, 2.3-2.5 parts by mass of a composite organic material, 6 parts by mass of calcium chloride and 1-3 parts by mass of ferric trichloride, the modified zirconium hydroxide is obtained by modifying zirconium hydroxide with epoxy chloropropane; the composite organic material is prepared from diethanol amine and chitosan; the water body composite phosphorus locking agent prepared by the method is relatively high in phosphorus removal rate.

The invention relates to the technical field of oil-water well sand consolidation agents, and discloses a modified resin and a preparation method and application thereof.The preparation method comprises the steps that diethanol amine, butyric acid and the like are subjected to a reaction, and a modifier is obtained; and reacting with bromoacetate phenolic resin to obtain the modified resin. The modified resin contains quaternary ammonium salt cation groups which can form electrostatic interaction with negative charges on the surface of sand, and meanwhile, the modified resin contains a large number of ester groups and amido bonds which form hydrogen bond interaction with hydroxyl on the surface of sand, so that the bonding strength between phenolic resin and sand is improved; the phenolic resin has better cementing and curing performance, inorganic materials such as nano silicon dioxide and nano boron nitride do not need to be added, the compressive strength of a cemented rock core sample is remarkably improved, and the phenolic resin has good practical application in an oil-water well sand consolidation agent.

The invention belongs to the technical field of ammonium perchlorate modification, and particularly relates to a low-sensitivity ammonium perchlorate composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: (1) mixing diethanol amine and an insensitive material to obtain a coating material; (2) adding a part of ammonium perchlorate into a stirrer according to a sandwich type feeding method, spreading the bottom of the stirrer, adding a coating material, finally adding the rest ammonium perchlorate, lifting a stirrer material cylinder, and starting a stirring reaction when the bottom of a stirring paddle is about to touch the material; and (3) after the reaction is finished, stirring and cooling the reaction system to obtain the ammonium perchlorate composite material with low friction sensitivity and impact sensitivity. The process provided by the invention is suitable for preparing low-sensitivity ammonium perchlorate with various particle sizes, has the advantages of simple process flow, good reproducibility, easiness in amplification and almost no pollution to the environment, and does not influence the performance of ammonium perchlorate while reducing the sensitivity of ammonium perchlorate.

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 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.

The invention provides a method for removing heavy metals by acidizing bleaching earth. The heavy metals in the bleaching earth are removed by using a heavy metal adsorbent. Firstly, acrylate reacts with diethanol amine to generate an esterification product, then the esterification product reacts with trimethylolpropane to form a hydroxyl-terminated hyperbranched polymer, and then the hydroxyl-terminated hyperbranched polymer reacts with isocyanate acrylate to introduce double bonds to obtain hyperbranched acrylate. Meanwhile, sodium alginate reacts with 4-chlorophenylboronic acid to obtain boric acid modified sodium alginate, then the boric acid modified sodium alginate reacts with tannic acid to introduce a large amount of hydroxyl groups, and finally the boric acid modified sodium alginate reacts with 3-aminopropanol vinyl ether to introduce double bonds, so that the sodium alginate compound containing double bonds is prepared. And copolymerizing the two monomers with acrylic acid, N-(2-aminoethyl) acrylamide and 2-acrylamido-2-methylpropanesulfonic acid to obtain the adsorbent with a three-dimensional network structure and multiple functional groups. Through the treatment, the heavy metal content of the bleaching earth is obviously reduced, no foreign impurities exist, and the functions of high decolorization rate and strong adsorbability are reserved.

The present invention provides a heat damage inhibitor composition for hair that suppresses heat-induced damage to the hair and maintains smooth texture and manageability even after heat treatment. [Solution] A heat damage inhibitor composition for hair, comprising (A) an arginine derivative represented by general formula (1) and (B) an anionic water-soluble polymer, wherein the weight blending ratio ((A) component / (B) component) is 0.5 to 10.0. TIFF2026049878000009.tif3864 (In general formula (1), M is a hydrogen atom, an alkali metal, an alkaline earth metal, or an alkanolamine such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, or triisopropanolamine.)

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.