496 results about "Diethanolamine" patented technology

The invention relates to the technical field of macromolecules, and discloses a preparation method of modified polyurethane toughened epoxy resin, which comprises the following steps: by taking 4-(Boc-amino) phenylboronic acid, diethanol amine, 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane and the like as raw materials, carrying out a series of chemical reactions to obtain a borate siloxane chain extender; the method comprises the following steps: adding a polyurethane prepolymer into the epoxy resin, participating in chain extension of polyurethane, and modifying the epoxy resin by using the polyurethane prepolymer to obtain the modified polyurethane toughened epoxy resin. A'soft segment 'and an Si-O structure in the modified polyurethane can also improve the flexibility of a curing network, effectively change the fracture mechanism of the resin, absorb a large amount of energy when the resin is fractured, and contribute to improving the toughness of the epoxy resin; on the basis of ensuring the strength of the epoxy resin, the toughness and flame retardant property of the epoxy resin are improved, and the epoxy resin can be applied to the fields of composite materials, coatings, adhesives and the like with higher toughness and flame retardant requirements, and has wide applicability.

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 relates to the technical field of petrochemical engineering, and discloses a temperature-resistant anti-swelling agent for fracturing and a preparation process thereof.The preparation method comprises the steps that glycerol triglycidyl ether and diethanol amine are subjected to a ring-opening reaction, a polyhydroxy tertiary amine monomer is obtained, then the polyhydroxy tertiary amine monomer and chloromethylated polystyrene are subjected to a quaternization reaction, and the temperature-resistant anti-swelling agent for fracturing is obtained. Quaternary ammonium salt groups of the anti-swelling agent and negative charges on the surface of clay form electrostatic interaction, and hydroxyl groups and the surface of the clay form hydrogen-bond interaction, so that the anti-swelling agent can be firmly adsorbed on the surface of the clay to form a layer of polymer film, the clay is prevented from being in contact with water, the phenomenon that the clay swells when encountering water is effectively inhibited, and the anti-swelling rate is very high. And the anti-swelling agent contains a heat-resistant polystyrene molecular chain, has excellent high temperature resistance, can maintain good structural stability at high temperature, still maintains high anti-swelling rate, and is suitable for a fracturing fluid system for high-temperature oil reservoir exploitation.

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 a functional fracturing fluid directly prepared from flow-back fluid of complex water quality. The fracturing fluid is prepared by directly adding a salt-tolerant polymer and an ion trapping agent into the flow-back fluid. The addition amount of the salt-tolerant polymer accounts for 0.15-0.3% of the total mass of the fracturing fluid, and the addition amount of the ion trapping agent is 100-500ppm. The salt-tolerant polymer is prepared by copolymerization of acrylamide, a salt-tolerant monomer and an allyl quinoline monomer, and the molecular weight of the polymer is 4-15 million. The salt-tolerant monomer is acrylamide polyoxyethylene sodium benzenesulfonate or acrylamide sodium sulfonate. The ion trapping agent is prepared from amino trimethylene phosphonic acid, diethylene triamine penta (methylene phosphonic acid), ethylene glycol bis (2-aminoethyl ether) tetraacetic acid, p-methylphenyl diethanol amine, 2, 3-epoxypropyl trimethyl ammonium chloride, fatty alcohol-polyoxyethylene ether, citric acid and tetrahydrofurfuryl acrylate. The fracturing fluid can be directly prepared from the flow-back fluid, the flow-back fluid does not need to be pretreated, and repeated utilization of the fracturing flow-back fluid is achieved.

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 invention relates to the field of emulsions for grainy paper coatings, and discloses a preparation method of a water-based environment-friendly emulsion for a grainy paper coating. The preparation method comprises the following steps: S1, preparing an acrylic carbamate modified monomer from hydroxyethyl acrylate, 2, 4-toluene diisocyanate and diethanol amine; and S2, preparing to obtain the emulsion. S3, obtaining the initiator. S4, deionized water, lauryl sodium sulfate, the emulsion and an initiator are subjected to a polymerization reaction, and an emulsion A is obtained. S5, transferring the emulsion A into a degassing kettle, adding tert-butyl hydroperoxide and vitamin C, and performing oxidation-reduction reaction to obtain emulsion B; and S6, carrying out steam degassing on the emulsion B to obtain the water-based environment-friendly emulsion. The water-based environment-friendly emulsion which is good in stability, glossiness, adhesion fastness, water resistance and weather resistance and low in volatile organic compound content can be prepared, and the preparation method is simple, efficient and environmentally friendly and has wide application prospects and market value.

The invention belongs to the technical field of hot melt adhesive processing, and particularly relates to a quick-drying polyurethane hot melt adhesive and a preparation method thereof. The preparation method comprises the following steps: mixing polyether polyol, isocyanate, a chain extender A, a chain extender B, a crystallization promoting agent, a surface drying promoting agent and an auxiliary agent, and carrying out extrusion granulation, wherein the chain extender A is obtained by carrying out a reaction on acrylamide and diethanol amine and then carrying out siloxane modification on the reaction product by utilizing methacryloyloxymethyltrimethoxysilane; and the chain extender B is obtained by reacting tetrakis hydroxymethyl phosphonium sulfate and barium hydroxide octahydrate and oxidizing by hydrogen peroxide. The prepared hot melt adhesive has better viscosity and also has a certain flame-retardant effect.

The invention discloses a weather-resistant wet-process polyurethane resin and a preparation method and application thereof, and belongs to the technical field of polyurethane synthetic leather, the preparation method of the resin comprises the following steps: carrying out prepolymerization reaction on polyester diol and part of isocyanate to generate a prepolymer; the prepolymer and part of isocyanate are subjected to a tackifying reaction, then a chain extender and the remaining isocyanate are added for a chain extension reaction, finally, a multifunctional cross-linking agent is added for a cross-linking reaction, and a target product is obtained finally. The chain extender comprises hydroxyl-terminated dihydric alcohol and N-phenyl diethanol amine, and the number of hydroxyl groups in the polyfunctionality crosslinking agent is at least three. In the forming process of a molecular chain of the polyurethane resin, the molecular chain is lengthened in a plurality of different stages, and substances with different properties are respectively added in different stages to carry out corresponding reactions, so that the crosslinking degree of the resin is increased by optimizing a chain extension process; meanwhile, a resin network structure is optimized, so that the hydrolysis resistance and the peel strength of the resin are improved.

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 relates to the field of metal powder material preparation, in particular to silver-coated copper powder with low-temperature sintering activity and a preparation method and application thereof.The preparation method comprises the following steps that copper powder, a reducing agent, a complexing agent composition and a silver plating solution are mixed and react, and the silver-coated copper powder is obtained; the complexing agent composition comprises at least two of ammonia water, triethylene tetramine, ethylenediamine, diethanol amine, benzimidazole, tartaric acid, nitrilotriacetic acid, ethylenediamine tetraacetic acid, disodium ethylene diamine tetraacetate, tetrasodium ethylene diamine tetraacetate and glycine. The preparation method disclosed by the invention is short in process flow, relatively low in cost, capable of keeping good batch stability and easy for industrial production; according to the obtained silver-coated copper powder, under the condition that the silver content is low, the completeness and compactness of a silver layer on the surface of the copper powder are good, the oxidation resistance is high, the service reliability of the silver-coated copper powder is improved, the production cost is saved, and the silver-coated copper powder further has good low-temperature sintering activity.

The invention belongs to the technical field of waterborne polyurethane, and discloses photo-thermal antibacterial, self-enhanced and self-healing vegetable oil-based waterborne polyurethane. The high-temperature-resistant polyurethane elastomer is prepared from a system consisting of the following raw materials in parts by weight: 80 to 120 parts of castor oil, 60 to 80 parts of dicyclohexylmethane diisocyanate, 20 to 40 parts of hexamethylene diisocyanate, 20 to 40 parts of N-methyldiethanolamine, 20 to 50 parts of protocatechuic acid, 2 to 10 parts of metal ions, 2000 to 3000 parts of water and 0.5 to 1 part of a catalyst. Metal ions in the photo-thermal antibacterial, self-enhanced and self-healing plant oil-based waterborne polyurethane and phenolic hydroxyl groups in protocatechuic acid are coordinated and self-assembled to form metal nanoclusters, and the waterborne polyurethane material has self-enhanced and self-healing properties due to a low-bond-energy coordination aggregation state structure; meanwhile, the waterborne polyurethane film is endowed with photo-thermal antibacterial performance by the metal nanoclusters. The invention further discloses a preparation method and application of the photo-thermal antibacterial, self-enhanced and self-healing plant oil-based waterborne polyurethane.

Specifically, amine compounds such as monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA) and the like are used as catalytic promoters, on one hand, the carbonization rate can be increased, resource utilization can be enhanced, and on the other hand, by accelerating the carbonization process, the calcium-based solid waste carbonization rate can be increased, the calcium-based solid waste carbonization rate can be increased, and the calcium-based solid waste carbonization rate can be increased. Calcium-based solid wastes (carbide slag, steel slag, high-calcium fly ash and the like) can be quickly converted into useful carbonate products (such as calcium carbonate), so that the economic value of the calcium-based solid wastes is improved; on the other hand, environmental pollution can be reduced, and soil and water source pollution possibly caused in the landfill or stacking process is reduced by converting the carbide slag into stable carbonate.

The present application provides ursolic acid diethanolamine salt and ursolic acid morpholine salt. It also provides a composition comprising the salt, and a method of using the salt.

To provide an electrolytic silver germanium alloy plating solution capable of codepositing a sufficient amount of germanium in a film, having good liquid stability, and hardly causing foaming.SOLUTION: The problem is solved by an electrolytic silver germanium alloy plating solution containing a silver source and a germanium source characterized by containing a nitrogen-containing coordination compound having a molecular weight of 500 or less. Specific examples of the nitrogen-containing coordination compound include N,N-di(2-hydroxyethyl)glycine, diethanolamine, N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid, triethylenetetramine, glycine, tris(hydroxymethyl) aminomethane, N-methylglucamine, bis(2-hydroxyethyl)aminotris(hydroxymethyl)methane, tricin, N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine, and salts of these compounds.SELECTED DRAWING: None

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 mixed organic amine absorbent as well as a preparation method and application thereof. The absorbent consists of a main absorbent, an absorption enhancer, a regulator and a solvent, the mass ratio of the main absorbent to the absorption enhancer to the conditioning agent is (0.5-5.0): (0.2-4.0): 1.0; the total mass concentration of the main absorbent, the absorption enhancer and the conditioning agent is 30-50 wt%; the main absorbent is diethylenetriamine, the absorption enhancer is N-methyldiethanolamine, the conditioning agent is 2-amino-2-methyl-1-propanol, and the solvent is water. According to the invention, by compounding and regulating the proportion of the organic amines, the synergistic effect of different types of organic amines is fully exerted, so that the mixed organic amine absorbent has high cycle capacity, low regeneration energy consumption, low absorbent loss, good dynamic performance and other good carbon dioxide capture performance.

The invention relates to a degradable high-strength medical adhesive and a preparation method and application thereof.The medical adhesive is prepared from raw materials through reaction, the raw materials comprise a component A, a component B and a component C. The component A is trihydric alcohol and derivatives thereof and / or trihydric alcohol modified by polyethylene glycol carboxylic acid derivatives and derivatives thereof, and the component C is trihydric alcohol modified by polyethylene glycol carboxylic acid derivatives and derivatives thereof. The component B is isocyanate, amino acid or an amino acid derivative, and the component C is N-methyldiethanolamine and / or bis (2-ethoxyl)-N-methyl-N-trifluoromethyl ammonium iodide and a derivative of the bis (2-ethoxyl)-N-methyl-N-trifluoromethyl ammonium iodide; the molar ratio of-NCO groups in the component B to total-OH groups in the component A and the component C is 2: 1, and the molar ratio of the component A to the component C is (1-9): 2. The component A and the component C are mixed, heated and dissolved, then a catalyst and the component B are added, and a mixed reaction system is obtained; and cooling after the reaction is completed, adding a rheology modifier, a foaming catalyst and a stabilizer, and uniformly mixing to obtain the degradable high-strength medical adhesive which can be applied to a functional composite material.

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 polyphenylene sulfide oligomer separation method, which comprises: cooling a polyphenylene sulfide product synthesized by a sodium sulfide polymerization reaction, carrying out centrifugation, and carrying out solid-liquid separation to obtain polyphenylene sulfide and a mother solution; the preparation method comprises the following steps: putting polyphenylene sulfide into an aqueous solution of diethanol amine and 1, 3-dimethyl-2-imidazolinone for washing, and collecting a washing solution; mixing the washing solution and the mother solution, carrying out candle type filtration to obtain a filter cake, washing the filter cake with deionized water, and drying to obtain a polyphenylene sulfide oligomer; according to the method, the polyphenylene sulfide is washed in the aqueous solution of the diethanol amine and the 1, 3-dimethyl-2-imidazolinone, oligomer in the polyphenylene sulfide can be better washed out, meanwhile, the polyphenylene sulfide oligomer in the mother solution and the washing solution can be separated from other substances through the addition of the diethanol amine and the 1, 3-dimethyl-2-imidazolinone, and therefore the polyphenylene sulfide can be better washed out. The yield and the purity of the polyphenylene sulfide oligomer are improved.

The invention discloses a flame-retardant B1-grade sheath material and application thereof in cables, and relates to the technical field of high polymer materials. Comprising the following raw materials in parts by weight: 40-50 parts of an ethylene-vinyl acetate copolymer, 10-20 parts of an ethylene-vinyl alcohol copolymer, 10-20 parts of a functional hyperbranched polymer, 30-40 parts of a metal organic framework modified composite flame retardant, 3-5 parts of a compatilizer, 0.8-1.2 parts of an antioxidant and 0.4-0.6 part of a lubricant. The functional hyperbranched polymer comprises structural units introduced by the following monomers: triphenyl isocyanate thiophosphate and N-[(4-methyl-1H-benzotriazole-1-yl) methyl] diethanol amine. The material is high in tensile strength, sufficient in thermal shock resistance and excellent in aging resistance and flame retardance.

The invention discloses a liquid organic hydrogen storage material and application thereof, and belongs to the technical field of liquid hydrogen storage. The liquid organic hydrogen storage material is an organic compound with a diol structure, the organic compound with the diol structure is one of 1, 5-pentanediol, diethylene glycol and diethanol amine, the liquid organic hydrogen storage material is low in melting point, high in boiling point, safe and low in toxicity, hydrogen is generated through liquid-phase dehydrogenation lactonization, the available hydrogen content is about 3.8%, and the 1, 5-pentanediol structure is one of 1, 5-pentanediol, diethylene glycol and diethanol amine. The 1, 5-pentanediol can be prepared from a biomass platform compound furfural through hydrogenation and hydrogenolysis, and the source is rich; the diethylene glycol and the diethanol ammonia are bulk chemical products, easy to obtain and low in price, and the liquid organic hydrogen storage material has high industrial application value.

The invention provides a nano oil-water phase permeability regulator and a preparation method thereof. The nano oil-water phase osmotic adjusting agent is prepared from the following raw materials in percentage by mass: 1.5 to 3 percent of scleroglucan pre-crosslinked particles, 2.5 to 5 percent of nano modified acrylamide, 0.2 to 3 percent of initiator, 0.2 to 2 percent of formaldehyde, 0.3 to 5 percent of diethanol amine, 0.5 to 5 percent of hydrochloric acid and the balance of water. Due to the scleroglucan pre-crosslinked particles, the thermosensitivity and the biological environmental protection property of the gel are improved, and the performances of salt resistance, temperature resistance, durability and the like are improved. Meanwhile, nano-modified acrylamide is obtained by grafting and modifying the surfaces of SiO2 particles and introducing cationic links and hydrophilic groups by adopting a silane coupling method, so that the nano-modified acrylamide has the adsorption and film-forming effects of polymer gel and a nano material, and the effect that 1 + 1 is greater than 2 is achieved. After being heated by the formation temperature, the particles expand to take the effects of occupying space, blocking and controlling water. The oil-water relative permeability of an oil layer is improved, water plugging and oil plugging are achieved, and important significance is achieved for plugging and controlling water in the extra-high water cut period and improving the productivity of an oil well.

The present invention discloses a fast-coloring hair dye and a preparation method thereof. A fast-coloring hair dye is a two-component oxidative hair dye, including a coloring agent and a developer; the coloring agent contains oxidation dyes, an alkali agent, a co-dyeing agent, and a hair conditioning agent. Among them, the alkali agent includes but is not limited to ammonium hydroxide and diethanolamine, the co-dyeing agent is a compound of alginate, potassium iodide, and hydrogen iodide, and the hair conditioning agent is a compound of extract of Coccosphere, extract of oyster, and hydrolyzed silk protein; the developer contains a hydrogen peroxide solution. The preparation method of a fast-coloring hair dye lies in separately preparing the coloring agent and the developer to obtain the fast-coloring hair dye. The fast-coloring hair dye of the present application has the dual effects of fast hair dyeing and reducing the damage of the hair dye to the hair. After using the fast-coloring hair dye of the present application for hair dyeing, the hair can retain the color for a long time and remain bright and smooth.

The invention provides a synthetic method and application of pure water-based acrylic resin. The preparation method comprises the following steps: firstly, esterifying acrylic acid and fatty alcohol to prepare an acrylate monomer with a flexible chain segment and hydrophilic-hydrophobic balance; then, acrylic ester and diethanol amine are subjected to aminolysis to generate a hydroxyl-containing acrylamide derivative, hydroxyl and trimethylolpropane ester exchange is carried out to form a branched node, and the crosslinking potential of a molecular chain is increased; the hydroxyl group and the isocyanate group are combined to generate a carbamate hard segment and construct a hyperbranched skeleton, and meanwhile, double bonds are reserved for subsequent free radical polymerization; and finally, copolymerizing the flexible monomer, the hyperbranched hard-segment monomer and hydroxyethyl acrylate to form the composite resin containing high-density hydroxyl groups, wherein the soft and hard segments of the composite resin are microphase-separated. The pure water-based acrylic resin prepared by the invention has excellent adhesive force, weather resistance, solvent resistance and the like, is applied to baking varnish, effectively improves the performance of the baking varnish, and has the characteristics of being green and environment-friendly.

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 belongs to the technical field of defoaming agents, and particularly relates to a degradable defoaming agent as well as a preparation method and application thereof. The degradable vegetable oil acid amide in the defoaming agent is easily dispersed in liquid, so that the surface tension of the liquid is reduced; the polyol fatty acid ester can form insoluble particles for defoaming; the nano-emulsion stabilizing aid physically and efficiently defoams by adsorbing gas, and has a thickening effect; fatty alcohol can be quickly diffused to a foam interface, so that the surface tension is reduced, and a quick defoaming effect is achieved. The prepared degradable defoaming agent is free of silicone oil residues, biodegradable in bio-based component and environmentally friendly, the fatty alcohol and the degradable vegetable oleic acid amide can conduct defoaming in time, the nano emulsion stabilizing additive and the fatty acid ester can inhibit the foam regeneration effect, the lauric acid diethanol amine and the Tween 80 can improve the compatibility and dispersity of all the components of the defoaming agent, and the defoaming effect is good. Through the synergistic effect of all the components, the foam inhibitor has excellent degradability, dispersibility and foam inhibition when being applied to paint and ink.