19 results about "Dimethyl ethanolamine" patented technology

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 invention discloses an anhydrous liquid-liquid phase change absorbent for carbon dioxide capture, and a preparation method and application thereof, and belongs to the technical field of carbon dioxide recovery. The invention relates to an anti-freezing agent which comprises the following components in percentage by weight: 20-30% of diglycolamine, 20-50% of dimethylethanolamine, 10-40% of dimethyl sulfoxide and the balance of a physical regulator. The anhydrous liquid-liquid phase change absorbent for capturing carbon dioxide in flue gas provided by the invention has the characteristics of high CO2 absorption capacity, short phase splitting time, high desorption rate and low CO2 rich phase viscosity after absorption, and the regeneration energy consumption of the absorbent can be greatly reduced. The optimal desorption temperature is 110 DEG C, the minimum regeneration energy consumption reaches 2.26 GJ / tCO2, the maximum desorption rate is 3.12 mmol CO2 kg <-1 > s <-1 >, the phase splitting time is 120-180 s, and the maximum CO2 absorption capacity can reach 3.23 mol / L.

The invention relates to the technical field of waterborne polyurethane coatings, and discloses a two-component high-wear-resistance waterborne polyurethane coating for paper package surface protection and a preparation method thereof. The water-based paint comprises the following components in percentage by adding: 20% of water-based matte polyurethane, 30% of a water-based acrylic polymer, 45% of water-based bright polyurethane, 0.5% of dimethylethanolamine, 0.3% of a water-based organic silicon defoaming agent, 1.5% of pasty ultra-high molecular weight polydimethylsiloxane dispersion liquid, 0.2% of a water-based organic silicon flatting agent, 2% of dipropylene glycol butyl ether, 0.2% of an organic tin drier and 0.2% of a Digao TEGO WET 270 base material wetting agent. And 0.4% of a polyether polyurethane associated rheological additive with 25% of active parts. The problems that a traditional paper package surface protection technology is long in degradation period, poor in environmental protection property and low in quality are effectively solved.

The invention relates to a catalytic synthesis method of N, N-dimethylethanolamine. The method comprises the following steps: preparing reaction raw materials ethanolamine, methanol and a ruthenium / carbon catalyst in proportion; the method comprises the following steps: adding raw materials ethanolamine, methanol and a ruthenium / carbon catalyst into a high-pressure reaction kettle; replacing air in the reaction kettle with nitrogen for three times, starting stirring, mixing and heating reactants, and carrying out heat preservation reaction; after the reaction is finished, cooling the reaction kettle, and exhausting; opening the reaction kettle, filtering the reaction mixture, and recovering the solid catalyst; and distilling the filtrate at normal pressure to recover excessive methanol, then carrying out reduced pressure distillation, and collecting corresponding fractions to obtain N, N-dimethylethanolamine. The method has the advantages that the N, N-dimethylethanolamine is prepared through the reaction of ethanolamine and methanol under the catalytic action of the ruthenium / carbon catalyst, the catalytic reaction activity is high, the selectivity is good, the reaction condition is mild, the yield is high, the catalyst can be recycled and reused, the method is environmentally friendly, and the production cost is reduced.

The invention discloses a primer for a digital ink-jet printing tank, which is prepared from the following raw materials in percentage by weight: 30 to 40 percent of acrylic modified polyester resin, 10 to 15 percent of polyurethane acrylate oligomer, 5 to 10 percent of amino resin, 5 to 10 percent of adhesion promoter, 10 to 20 percent of ethylene glycol monobutyl ether, 10 to 20 percent of N, N-dimethylformamide, 5 to 10 percent of solvent and the balance of water. The acrylic modified polyester resin is prepared from, by weight, 1%-3% of N, N-dimethylethanolamine, 0.5%-1% of oxidized polyethylene wax powder, 0.05%-0.2% of an acid catalyst, 0.2%-0.5% of a non-silicon flatting agent, 0.05%-0.2% of a defoaming agent and 15%-20% of deionized water, the acid value of the acrylic modified polyester resin is 40-50 mgKOH / g, and the solid content of the acrylic modified polyester resin is 60%-65%; the hydroxyl value of the polyurethane acrylate oligomer is 50 to 70mg KOH / g, and the solid content of the polyurethane acrylate oligomer is 60 to 65 percent. The primer can realize uniform spreading of UV ink, stable adhesion in the whole period and compatibility of multiple sterilization processes.

The invention belongs to the technical field of pavement maintenance materials, and particularly relates to an ultraviolet curing asphalt slurry seal material. The paint is prepared from the following components in parts by weight: 20-33 parts of decolorized asphalt, 2-8 parts of an ultraviolet curing resin system, 4-8 parts of diesel oil and 58-72 parts of mineral powder, wherein the ultraviolet curing resin system is prepared from the following components in parts by weight: 50-65 parts of polyurethane acrylic resin, 30-45 parts of acryloylmorpholine, 0.8-3 parts of 1-hydroxycyclohexyl phenyl ketone and 0.6-2 parts of dimethylethanolamine. The ultraviolet curing asphalt slurry seal material can be rapidly cured under ultraviolet irradiation, a hard coating is generally formed within several minutes to ten minutes, and the construction time is remarkably shortened, so that the interference time of a construction site is greatly shortened, the traffic efficiency of a road is favorably improved, and the influence on traffic is reduced.

The application discloses a spiral stud alloy co-deposition anticorrosion layer and a processing technology thereof. The alloy co-deposition anticorrosion layer comprises a rare earth zinc aluminum co-deposition layer and a sealing layer. The rare earth zinc aluminum co-deposition layer is formed by co-deposition of a co-deposition agent with the following components in parts by weight: zinc powder 40-55 parts, zinc aluminum powder 15-30 parts, zinc aluminum magnesium silicon powder 15-25 parts, and a permeation aid 1-15 parts. The sealing layer is formed by drying an aqueous sealing agent with the following components in parts by weight: aqueous acrylic resin 100 parts, dimethyl ethanolamine (DMEA) 3-4 parts, water-soluble acrylic modified polyester resin 8-12 parts, composite molybdate aqueous solution 45-55 parts, wetting dispersant 8-12 parts, defoaming agent 8-12 parts, filler 12-16 parts, and ultraviolet light absorber 1-3 parts.

The application discloses a kind of water-resistant wear-resistant wood paint and preparation method thereof. Including the following steps: step 1: methyl methacrylate, styrene, butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, acrylamide, modified filler are mixed, stirring to completely dissolved, to obtain mixture A;2-butoxyethanol and benzoyl peroxide are mixed, stirring is uniform, to obtain mixture B;Step 2: mixture A is elevated temperature, with constant speed dropwise addition mixture B, after dropwise addition is completed, continue to react 2-3h, after reaction is completed, cooling to room temperature, using N, N-dimethyl ethanolamine adjusts pH, adds deionized water, to obtain wood paint. Advantage: the application is prepared by copolymerization of monomers such as methyl methacrylate, styrene and modified filler;Among them, the modified filler is treated by etching, amination and modification using Mo2Ti2AlC3 powder, which significantly improves the performance of the paint.

The invention discloses a preparation method of a low-rotation-speed adaptive mixed emulsion explosive emulsifier, which comprises the following steps: S1, raw material preparation: taking polyisobutylene succinic anhydride as a lipophilic end raw material, N, N-dimethylethanolamine as a hydrophilic end raw material, a sodium hydroxide aqueous solution as a catalyst and base oil as a dispersion medium; and S2, esterification reaction: mixing polyisobutylene succinic anhydride and base oil according to the mass ratio of 2: 8, heating to 90 DEG C, uniformly stirring, adding N, N-dimethylethanolamine, controlling the mass ratio of polyisobutylene succinic anhydride to N, N-dimethylethanolamine to be 1: 2.0, slowly adding a catalyst below 100 DEG C, heating to 160 DEG C under the protection of nitrogen, and reacting at constant temperature for 6 hours to obtain the polymer emulsifier. The method is mild in reaction condition, simple in compounding process, wide in raw material source and suitable for industrial production.

The invention discloses a low-temperature desorption and high-cycle-stability absorption liquid for capturing carbon dioxide and a preparation method and application thereof, and relates to the technical field of gas separation and purification, the absorption liquid comprises a main absorption component, an auxiliary agent and a solvent; the main absorption component is at least one of N-ethyl piperazine, 1-methyl piperazine and N-hydroxyethyl piperazine; the solvent is at least one of 1-dimethylamino-2-propyl alcohol, diethylaminoethanol and N, N-dimethylethanolamine; and the auxiliary agent is selected from a composite antioxidant and a desorption accelerator. Through the multi-component collaborative design, the system has excellent low-temperature desorption performance and long-term cycle stability on the premise of maintaining high trapping efficiency, long-term stable and efficient operation of the amine liquid is ensured, the operation cost caused by amine liquid degradation, equipment corrosion and high energy consumption is reduced, and good application prospects are achieved.

This invention belongs to the field of water-based coating technology and relates to a water-based sealing coating for passenger vehicles with anti-flash rust function. By weight, it comprises 10-20 parts Fischer-Tropsch wax, 15-20 parts sulfonated lanolin cerium / lanthanum salt, 30-70 parts water, 1-4 parts dimethyl ethanolamine phenanthreneate, 2 parts dihydrazide terephthalate, and 1-5 parts isomeric tridecyl alcohol polyoxyethylene ether TO-8 modified with ethyl acetoacetate methacrylate. It primarily addresses the problem of flash rust on the inner walls of car door cavities and other body seams when using water-based products, and solves the corrosion problem caused by long-term inward evaporation of moisture from door cavities and seams when applying thick coatings. This invention uses dimethyl ethanolamine phenanthreneate at a moderate vapor pressure to ensure emulsification properties while its vapor-phase corrosion inhibition function prevents flash rust. Furthermore, as moisture and amine gradually evaporate, the self-crosslinking of the ketone carbonyl-hydrazide groups gradually decreases the HLB value of the system, giving the coating good water resistance in the early stages of drying, achieving a perfect water-based alternative.

The invention relates to the technical field of oilfield chemistry, in particular to a urea cation homopolymer ionic liquid clay stabilizer and a preparation method thereof.The urea cation homopolymer ionic liquid clay stabilizer is formed by compounding urea and a cation homopolymer containing cation and hydroxyl repetitive units, chloropropene is added into a suspension liquid formed by mixing N, N-dimethylethanolamine and urea for a reaction, and the ionic liquid clay stabilizer is obtained. And adding a required amount of initiator into the ionic liquid A, and carrying out a reaction to obtain the urea cation homopolymer ionic liquid clay stabilizer. The urea cation homopolymer ionic liquid clay stabilizer contains strong polar molecules of a plurality of cations and hydroxyl groups, and is high in charge density, strong in washing resistance and remarkable in clay expansion prevention effect.

This application relates to a low molecular weight, high viscosity polyacrylamide and its preparation method, belonging to the field of polymer material synthesis. The raw materials for preparation include the following components in parts by weight: 70-80 parts acrylamide, 8-12 parts 2-acrylamido-2-methylpropanesulfonic acid, 3-5 parts hydrophobic associating monomer, 3-6 parts reversible crosslinking monomer, 1-2 parts crosslinking agent, 0.3-0.5 parts surfactant, and 0.07-0.1 parts redox initiation system; the redox initiation system includes persulfate, sodium bisulfite, and N,N-dimethylethanolamine. The preparation method includes the following steps: adding the above monomers to water, stirring to prepare a mixed aqueous solution, adjusting the pH of the mixed aqueous solution to neutral, removing oxygen, adding the redox initiation system to react, and obtaining a polymer colloid; granulating, washing, drying, and pulverizing the polymer colloid to obtain the low molecular weight, high viscosity polyacrylamide. The polyacrylamide prepared in this application has high viscosity, good salt resistance, and shear recovery properties.

This invention relates to the field of organic synthesis technology, specifically to a catalyst, its preparation method and application, and a method for synthesizing dimethylaminoethyl acrylate. In this invention, acrylic acid and N,N-dimethylethanolamine are used as raw materials, and a calcium-zinc-tin composite catalyst (CaCl2-ZnCl2-SnCl4-HZSM-5) supported on HZSM-5 molecular sieve is used as the catalyst to efficiently synthesize dimethylaminoethyl acrylate. Using the HZSM-5 molecular sieve-supported calcium-zinc-tin composite catalyst (CaCl2-ZnCl2-SnCl4-HZSM-5) not only efficiently catalyzes the esterification reaction but also results in high yield and high purity of dimethylaminoethyl acrylate, while reducing the formation of a large number of byproducts.

The application discloses a kind of low-temperature desorption and high cycle stability absorption liquid for capturing carbon dioxide and its preparation method and application, it is related to gas separation and purification technical field, including main absorption component, auxiliary agent and solvent;Main absorption component is at least one of N-ethyl piperazine, 1-methyl piperazine and N-hydroxyethyl piperazine;Solvent is at least one of 1-dimethylamino-2-propanol, diethylaminoethanol and N,N-dimethylethanolamine;Auxiliary agent is selected from composite antioxidant and desorption promoter.The multi-component synergistic design of the application makes the system maintain high capture efficiency under the premise, with excellent low-temperature desorption performance and long-term cycle stability, ensures that amine liquid long-term stable and efficient operation, reduces the operating cost caused by amine liquid degradation, equipment corrosion and high energy consumption, with good application prospect.

The invention relates to the technical field of paint spraying coatings for new energy automobiles, in particular to a paint spraying coating for a water-based magnetic material for a new energy automobile and a preparation method of the paint spraying coating for the water-based magnetic material for the new energy automobile. The water-based antirust paint is prepared from the following components in parts by weight: 0.1 to 1 part of N, N-dimethylethanolamine, 5 to 10 parts of diethylene glycol monobutyl ether, 10 to 17 parts of inorganic filler, 5 to 10 parts of antirust pigment, 10 to 20 parts of amino resin, 0.5 to 3 parts of dispersing agent, 0.1 to 1 part of defoaming agent, 0.1 to 1 part of wetting agent, 0.1 to 1 part of flatting agent, 15 to 20 parts of deionized water and 5 to 15 parts of water-based color paste. The inorganic filler is a mixture of talcum powder and silicon dioxide; the paint has the advantage that the corrosion resistance and the environment-resistant reliability of a thin paint film can be improved.

The invention belongs to the technical field of water-based coatings, and relates to a water-based plugging coating with an anti-flash-rust function for a passenger car. The invention relates to a water-based cleaning agent which comprises the following components in parts by weight: 10-20 parts of Fischer-Tropsch wax, 15-20 parts of sulfonated lanolin cerium / lanthanum salt, 30-70 parts of water, 1-4 parts of phenanthrene formic acid dimethylethanolamine salt, 2 parts of terephthalic acid dihydrazide and 1-5 parts of acetoacetoxy ethyl methacrylate modified iso-tridecanol polyoxyethylene ether TO-8. The method mainly solves the problem of flash rust of the inner wall of a cavity when a water-based product is used at the automobile door cavity folding edge and other automobile body gaps, and solves the problem of corrosion in the long-term inward volatilization process of water in the automobile door folding edge gaps when a coating is thickly coated. The phenanthrene formic acid dimethylethanolamine salt with moderate vapor pressure is used for guaranteeing the emulsifying characteristic, meanwhile, the gas-phase corrosion inhibition function of the phenanthrene formic acid dimethylethanolamine salt prevents flash rust, and along with gradual volatilization of water and amine, self-crosslinking of keto carbonyl-hydrazide and the HLB value of a system are gradually reduced, so that the coating has better waterproofness in the initial drying stage, and the water resistance of the coating is greatly improved. Perfect water-based substitution is realized.

The invention discloses water-borne epoxy resin and a preparation process of the water-borne epoxy resin. The water-based paint is prepared from the following raw materials in parts by weight: 3.55 parts of methylbenzene, 27.43 parts of oleic acid, 118.87 parts of epoxy resin, 17.03 parts of butyl acrylate, 27.43 parts of styrene, 17.52 parts of butyl methacrylate, 17.52 parts of 2-ethylhexyl acrylate, 17.03 parts of methacrylic acid, 11.58 parts of ethylene glycol butyl ether, 11.58 parts of propylene glycol monomethyl ether, 3.55 parts of benzoyl peroxide, 23.77 parts of an emulsifier, 14.2 parts of dimethylethanolamine and 350.68 parts of pure water. A long-chain fatty acid flexible group is introduced into an epoxy resin molecular chain, so that the brittleness is improved from the molecular structure level; then, through composite copolymerization of flexible monomers such as butyl acrylate and 2-ethylhexyl acrylate in the step S2 and functional monomers such as methacrylic acid and styrene, hydrophilic groups and compatible groups are synchronously introduced, and the problems that traditional waterborne epoxy resin is high in interfacial tension with a base material and matched auxiliaries, and layering and shrinkage are prone to occurring are solved.

The invention discloses a high performance liquid chromatography method for detecting dimethylamino hydrochloride residues in dimethylaminochloroethane hydrochloride, and relates to the technical field of pharmaceutical analysis, acetonitrile is used as a solvent, a benzoyl chloride acetonitrile solution is used as a derivatization reagent, a sodium hydroxide solution is used as an acid-binding agent, dimethylamine hydrochloride and N, N-dimethylformamide are used as an acid-binding agent, and a high performance liquid chromatography method for detecting the dimethylamino hydrochloride residues in dimethylaminochloroethane hydrochloride is provided. The method comprises the following steps: reacting N, N-dimethylethanolamine hydrochloride with a benzoyl chloride acetonitrile solution under a heating condition; according to the method, the residues of dimethylamine hydrochloride and N, N-dimethylethanolamine hydrochloride in dimethylaminochloroethane hydrochloride can be effectively detected, the limit of quantitation reaches 0.4 mu g / ml of dimethylamine hydrochloride, and compared with an existing gas-phase and liquid-phase direct sample injection method, the used reagents and consumables are conventional consumables, so that the operation is safe and simple, the treatment is convenient and rapid, and the method is suitable for industrial production. The detection efficiency is improved, and the cost is reduced; equipment is easy to obtain, and a measured chromatographic baseline is stable and does not drift.