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768 results about "Ethanolamine" patented technology

Ethanolamine (2-aminoethanol, monoethanolamine, ETA, or MEA) is an organic chemical compound with the formula HOCH₂CH₂NH₂ (C₂H₇NO). The molecule is bifunctional, containing both a primary amine and a primary alcohol. Ethanolamine is a colorless, viscous liquid with an odor reminiscent of ammonia. Its derivatives are widespread in nature; e.g., lipids, as precursor of a variety of N-acylethanolamines (NAEs), that modulate several animal and plant physiological processes such as seed germination, plant–pathogen interactions, chloroplast development and flowering, as well as precursor, combined with arachidonic acid (C₂₀H₃₂O₂; 20:4, ω-6), to form the endocannabinoid Anandamide (AEA: C₂₂H₃₇NO₂; 20:4, ω-6).

Organic amine composite absorbent for carbon capture and application thereof

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.
Owner:ZHEJIANG UNIV +1

Graphene nanometer heavy anti-corrosion coating and preparation method thereof

ActiveCN120590844AAnti-corrosive paintsEpoxy resin coatingsN-acylethanolaminesAcyl group
The invention discloses a graphene nanometer heavy anti-corrosion coating and a preparation method thereof, and belongs to the technical field of anti-corrosion coatings. The coating is prepared from the following components in parts by mass: 50 to 70 parts of diallyl bisphenol A type epoxy resin, 8 to 15 parts of histidine modifier, 12 to 20 parts of graphene nano composite modified filler, 5 to 10 parts of curing agent, 0.5 to 2 parts of flatting agent and 0.3 to 1 part of defoaming agent. The preparation method of the histidine modifier comprises the following steps: carrying out a Schiff base reaction on 1-palmitoyl-2-oleoyl ethanolamine and N-formyl-L-histidine to generate an intermediate A; reacting with a spiro quaternization reagent to form a quaternary ammonium salt intermediate B; and then compounding with aminopropyltriethoxysilane and silicotungstic heteropoly acid salt to obtain the product. The graphene nano-composite modified filler is prepared by modifying the surface of a graphene oxide / bentonite mutual intercalation layer structure through allyl trimethoxy silane. The graphene nano heavy anti-corrosion coating prepared by the invention forms a high-density cross-linked network, and has excellent barrier property, strong adhesive force, impact resistance and long-acting anti-corrosion performance.
Owner:HEBEI XIONGAN RUNDIAN COMM TECH CO LTD

Bionic exosome for anti-inflammatory and repair as well as preparation method and application of bionic exosome

The invention relates to a bionic exosome for anti-inflammation and repair as well as a preparation method and application thereof, and belongs to the field of cosmetics. The bionic exosome provided by the invention comprises a membrane structure and an internal load phase, the membrane structure comprises a phospholipid bilayer, a stabilizer and a targeting ligand; the internal load phase comprises a solvent and an active component; the phospholipid bilayer is composed of phospholipid compounds; preferably, at least one of the distearoyl phosphatidyl ethanolamine-polyethylene glycol 2000 and the 1, 2-dioleoyl-sn-glycerol-3-phosphoethanolamine is adopted as the phospholipid compound, and at least one of the distearoyl phosphatidyl ethanolamine-polyethylene glycol 2000 and the 1, 2-dioleoyl-sn-glycerol-3-phosphoethanolamine is adopted as the phospholipid compound; at least one of cholesterol, phytosphingosine and sodium stearoyl glutamate is preferably adopted as a stabilizer, so that the stabilizer of the obtained bionic exosome is improved, and the bionic exosome has the advantages of high encapsulation efficiency, good encapsulation efficiency stability, simplicity in operation, excellent anti-inflammatory and repairing effects and the like.
Owner:GUANGZHOU FANZHIRONG COSMETICS CO LTD +1

Method for improving chemiluminescence immunoassay sensitivity of magnetic particles, detection kit and application of detection kit

The invention relates to a method for improving chemiluminescence immunoassay sensitivity of magnetic particles, a detection kit and application thereof, firstly, magnetic beads are coupled with an antibody, then magnetic beads are sealed to obtain a magnetic bead coated antibody, sealing comprises pre-sealing and second-step sealing, glycine and ethanolamine are added in the pre-sealing process, and in the second-step sealing process, glycine and ethanolamine are added in the second-step sealing process. Casein hydrolysate and dodecyl dimethyl amine ethyl lactone are added; then coupling the antibody with alkaline phosphatase or streptavidin to obtain an alkaline phosphatase labeled antibody or a streptavidin labeled antibody; the magnetic bead coated antibody, the alkaline phosphatase labeled antibody or the streptavidin labeled antibody is used for sample detection. The method is high in sensitivity and wide in detection range, is adaptive to a common immunoassay instrument, does not need expensive equipment, and is also simple to operate; in addition, the AMH concentration with extremely low concentration can be accurately detected.
Owner:HANGZHOU BAICHEN MEDICAL LAB CO LTD +1

Composite acid gel for nursing scalp and preparation method thereof

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

Method for preparing calcium hydroxide with high specific surface area and high pore volume by semi-dry method

The invention discloses a method for preparing calcium hydroxide with high specific surface area and high pore volume by a semi-dry method, which comprises the following steps: S1, adding an alcohol reagent into water, and uniformly mixing to obtain a solution A; s2, adding a composite cationic surfactant into the solution A, and dissolving to obtain a solution B; s3, adding an iron salt solution into the solution B, and uniformly mixing to obtain a solution C; s4, adding triethanolamine into the solution C, and performing ultrasonic dissolution to obtain a solution D; and S5, spraying the solution D into calcium oxide powder, continuously stirring, and reacting to prepare calcium hydroxide with high specific surface area and high pore volume. The calcium hydroxide prepared by the method has a high specific surface area and a rich pore structure, is powdery after reaction, and is relatively low in water content.
Owner:CHANGZHOU INST OF TECH +1

Liquiritin gel as well as preparation method and application thereof

The invention provides liquiritin gel as well as a preparation method and application thereof. The liquiritin gel is prepared from the following components in concentration: 0.1 weight percent to 2 weight percent of liquiritin, 0.1 weight percent to 4 weight percent of carbomer, 0.1 weight percent to 4 weight percent of water-soluble cellulose ether compounds and 1 to 10 mL / Kg of triethanolamine. Wherein liquiritin and the water-soluble cellulose ether compound are respectively used as a main thickening agent and an auxiliary thickening agent, a synergistic thickening system is more stable and more suitable for liquiritin compared with a single thickening system or other neutralization systems, and the liquiritin and the water-soluble cellulose ether compound can synergistically adjust viscosity; triethanolamine is used as a neutralizer to neutralize carboxyl of carbomer to form gel; carbomer and a water-soluble cellulose ether compound are cooperated according to a specific ratio and can be different from a single thickening system or different neutralization systems, so that the liquiritin gel with excellent film-forming property, proper flowability and high transdermal absorption efficiency is prepared.
Owner:GUANGDONG PHARMA UNIV

Photo-thermal antibacterial, self-enhanced and self-healing vegetable oil-based waterborne polyurethane as well as preparation method and application thereof

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.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

Application of amine auxiliary in accelerating carbonization of calcium-based solid waste

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.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Herbal sleep-aiding gel and preparation process thereof

The invention belongs to the technical field of sleep-aiding gels, and discloses a herbal sleep-aiding gel and a preparation process thereof, the gel comprises the following components: deionized water, propylene glycol, glycerol, carbomer 980 and triethanolamine; the mask is prepared from, by weight, 1.8% of lavender essential oil, chamomile extract, bitter orange flower essential oil, gamma-aminobutyric acid, melatonin, spina date seed extract, xylaria nigripes extract and phospholipid wall materials. Sodium chloride and azone; camphor and borneol; eDTA (Ethylene Diamine Tetraacetic Acid) disodium, phenoxyethanol and ethylhexylglycerin. The traditional Chinese medicine composition is suitable for people with sleep disorders such as long-term insomnia, difficulty in falling asleep, insomnia and dreaminess, easy awakening due to light sleep, restlessness and depression and the like; through the high transdermal absorption rate of a nano micro-capsule technology, in combination with a colloid double-electrode-layer structure, capacitance-like micro-current is generated, in cooperation with lavender-chamomile-bitter orange flower and other herbal essence and GABA and melatonin active ingredients, the sleep center is adjusted in a multi-channel mode, and the physical sleep-aiding scheme is a new physical sleep-aiding scheme for safely replacing a sleeping drug.
Owner:HANYI VALLEY (HAINAN) HEALTH TECHNOLOGY GROUP CO LTD

Mixed organic amine absorbent as well as preparation method and application thereof

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.
Owner:ZHEJIANG UNIV

Detection method for rapidly determining main content of magnesium hydroxide and calcium oxide in process of preparing high-purity magnesium hydroxide from salt lake bischofite

The invention discloses a detection method for rapidly determining the main content of magnesium hydroxide and calcium oxide in the process of preparing high-purity magnesium hydroxide from salt lake bischofite, which comprises the following steps: determining the main content of magnesium hydroxide: weighing a proper amount of sample, dissolving with hydrochloric acid and fixing the volume to obtain a test solution; taking a proper amount of the test solution, adding triethanolamine to mask interfering ions, adjusting the pH value with an ammonia-ammonium chloride buffer solution, taking chrome black T as an indicator, and titrating the main content of magnesium hydroxide with an EDTA standard solution; and measuring the content of calcium in magnesium hydroxide: taking a proper amount of the test solution, adding triethanolamine to mask interfering ions, adjusting the pH value by using a sodium hydroxide solution, adding a proper amount of a calcium indicator, and titrating the content of magnesium calcium hydroxide by using an EDTA standard solution. The method is simple and easy to implement, can quickly and accurately analyze and detect the main content and the calcium oxide content in the magnesium hydroxide, can realize complete dissolution of the magnesium hydroxide, and does not artificially introduce a large number of impurity elements, so that the system error is reduced, and the detection quality is improved.
Owner:WESTERN MINING CO LTD +1

Nano oil-water phase permeability regulator and preparation method thereof

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.
Owner:CHINA NAT PETROLEUM CORP +1

Paint removing composition, paint stain cleaning agent and application of paint stain cleaning agent

The invention relates to the technical field of paint removers, and particularly discloses a paint removal composition, a paint stain cleaning agent and application of the paint stain cleaning agent. The paint stain cleaning agent provided by the invention is prepared from the following components in parts by weight: 30 to 40 parts of EDTA-2Na (Ethylene Diamine Tetraacetic Acid), 200 to 300 parts of caustic soda flakes, 140 to 170 parts of sodium alcohol ether sulphate, 160 to 180 parts of sodium xylene sulfonate, 400 to 450 parts of monoethanolamine, 1100 to 1300 parts of diethylene glycol monobutyl ether, 250 to 300 parts of limonene, 40 to 100 parts of saponin extract and 3700 to 3900 parts of water, the saponin extract is selected from one or more of soapnut saponin, fenugreek saponin and aescin; the invention further provides a paint stain cleaning agent prepared from the paint removal composition and application of the paint stain cleaning agent to cleaning of protective clothing. The paint stain cleaning agent provided by the invention can quickly permeate into paint and the contact surface of the paint and protective clothing, so that the paint on the surface of the protective clothing is dissolved and effectively stripped.
Owner:BEIJING BAICHUAN TECH & TRADE CO LTD

Hand dishwashing detergent concentrate

The invention relates to a liquid detergent composition comprising a first surfactant selected from fatty alcohol ether sulfates, a second surfactant selected from betaines, optionally at least one solvent selected from ethanol, propanol, isopropanol, ethylene glycol, butyl glycol, propylene glycol, polypropylene glycol, alcoholamine, monoethanolamine, glycerol and mixtures thereof, wherein the salt concentration in the composition is about 0.2 to about 10 wt.-% and wherein the salt is selected from the group consisting of sodium salts such as sodium chloride, sodium sulfate, sodium formate, sodium acetate or sodium propionate, potassium salts such as potassium chloride, potassium sulfate, potassium formate, potassium acetate or potassium propionate, magnesium salts such as magnesium chloride, magnesium sulfate, magnesium formate, magnesium acetate or magnesium propionate, and calcium salts such as calcium chloride, calcium sulfate, calcium formate, calcium acetate or calcium propionate, and mixtures thereof, and wherein the composition is a concentrate that can be diluted with water while maintaining or increasing the viscosity.The present invention further relates to the use of such a cleaning composition for cleaning hard surfaces, in particular dishes, and to a process for preparing a cleaning composition, the process comprising diluting the concentrated liquid cleaning composition with water.
Owner:HENKEL KGAA

Powerful heavy oil stain cleaning agent and preparation method thereof

The invention provides a powerful heavy oil stain cleaning agent and a preparation method thereof, and belongs to the technical field of cleaning agents. The cleaning agent is prepared from the following components in percentage by mass: 70 to 90 percent of water, 0.2 to 1.0 percent of tetrasodium glutamate diacetate, 0.2 to 1.0 percent of coconut alkyl quaternary amine ethoxylate, 1.0 to 3.0 percent of C9-11 fatty alcohol-polyoxyethylene ether, 1.0 to 5.0 percent of fatty ether nonionic surfactant, 1.0 to 8.0 percent of polyol solvent, 1.0 to 5.0 percent of monoethanolamine, 0.5 to 2.0 percent of sodium hydroxide and 0.1 to 0.3 percent of essence. The powerful heavy oil stain cleaning agent is good in cleaning effect, small in damage to cleaned objects and good in environmental protection performance.
Owner:CHENGDU RAINBOW DAILY CHEM CO LTD

Nano-selenium modified liposome as well as preparation method and application thereof

The invention relates to the technical field of biological medicines and vaccines, in particular to a nano-selenium modified liposome as well as a preparation method and application thereof. The nano-selenium modified lipidosome disclosed by the invention comprises a lipidosome and nano-selenium. Wherein the nano-selenium is modified on the surface of the liposome; the liposome is composed of cholesterol, phospholipid, and distearoyl phosphatidyl ethanolamine-polyethylene glycol 2000. The nano-selenium modified liposome can be suitable for different treatment scenes, becomes a multifunctional drug delivery platform, has the characteristics of long circulation, good biocompatibility, high drug loading rate, good stability, increase of retention time of a treatment drug in a body and the like, can be directly entrapped with an antigen, can also be cooperatively combined with a drug and a vaccine, and has a wide application prospect. The defects of low bioavailability, poor stability, toxic and side effects and the like of the existing medicinal preparation are overcome, and the immunotherapy effect is remarkably enhanced while the treatment medicine in the liposome is promoted to achieve a remarkable slow release effect.
Owner:TECON BIOPHARMACEUTICAL CO LTD

Potential of hydrogen (pH) value system of lean solvent / stripping water heat exchanger

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

Environment-friendly water-based paint remover for tooling as well as preparation method and application of paint remover

The invention relates to the technical field of paint removers, and particularly discloses an environment-friendly water-based paint remover for tools as well as a preparation method and application of the environment-friendly water-based paint remover. The invention provides an environment-friendly water-based paint remover for tools. The environment-friendly water-based paint remover is specifically prepared from 280-320 parts of a main solvent, 40-54 parts of a solubilizer, 30-40 parts of a surfactant, 7-13 parts of a penetrating agent, 130-150 parts of monoethanolamine, 8-12 parts of sulfonic acid, 40-58 parts of caustic soda flakes, 1-5 parts of a thickening agent and 280-320 parts of water. The main solvent is formed by mixing benzyl alcohol and dipropylene glycol monomethyl ether according to the weight ratio of (0.1-1): (1-10); the preparation method of the penetrant comprises the following steps: reacting phthalic anhydride, ethylene glycol and hydroquinone to obtain modified polyester; and then mixing the modified polyester with isooctanol polyoxyethylene ether JFC-3 to obtain the modified polyester. The paint remover prepared by the invention has good paint removal efficiency, and can effectively improve the production efficiency of an automobile coating factory and reduce the comprehensive cost.
Owner:BEIJING BAICHUAN TECH & TRADE CO LTD

Quick-hardening early-strength concrete mineral additive and preparation method thereof

The invention discloses a quick-hardening early-strength concrete mineral additive and a preparation method thereof, and belongs to the technical field of building materials. The additive comprises the following components in parts by weight: 50-75 parts of a mineral active material (compounded by silica fume, slag powder and metakaolin), 15-30 parts of a composite activator (sodium silicate, lithium sulfate and triethanolamine synergistically), 5-10 parts of a sustained-release microcapsule (calcium sulphoaluminate coated with nano-silica) and 2-5 parts of an auxiliary thickening agent (compounded by HPMC and a water reducing agent). The preparation method comprises the steps of mineral activation, excitant reaction and mixing of the microcapsule and the thickening agent. After the additive is doped into concrete, the 3h compressive strength is greater than or equal to 15MPa, the initial setting time is less than or equal to 5min, and the additive has low resilience (less than or equal to 13%), high durability (impermeability is greater than or equal to P11) and environmental adaptability (-5 DEG C strength fluctuation ratio is less than or equal to 9%). And compared with the prior art, the cost is reduced by 40%, and the method has remarkable economic and social benefits.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Matting curing agent for powder coating and preparation method thereof

The present application relates to a kind of powder coating hydroxyalkylamide matting curing agent and its preparation method, the matting curing agent using including citric acid, 2-methyl-1,3-propanediol, dimethylbenzene, anhydrous methanol, N-methyl monoethanolamine, catalyst, nanometer titanium dioxide is reacted to obtain raw materials.In first, citric acid and 2-methyl-1,3-propanediol are grafted to carry out reaction, then the remaining four carboxyl groups of grafting are methyl esterification reaction, obtain methyl esterification product, then with N-methyl monoethanolamine acylation reaction obtains hydroxyalkylamide curing agent;Add nanometer titanium dioxide, fully mix and process to obtain the matting curing agent.The curing agent product functionality is higher, the hardness of coating film after curing is higher, and the boiling water resistance is excellent;And the coating film after curing has obvious matting effect, coating film gloss is basically reached 50-70%, and the decorative property is excellent.
Owner:ANHUI HUIZHOU ZHENGJIE TECH CO LTD

Method for preparing N-butyl nitroxyethyl nitramine through nitration of ionic liquid

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

Degradation liquid capable of degrading amine cured epoxy resin, degradation recovery method and regeneration method of amine cured epoxy resin

The invention provides degradation liquid capable of degrading amine cured epoxy resin, a degradation recovery method and a regeneration method of the amine cured epoxy resin. The degradation liquid comprises an amine compound, an inorganic alkali solution and water. Wherein the ratio of the amine compound is 15%-30%, the ratio of the inorganic alkali solution is 6%-20%, and the balance is water; the amine compound comprises monoethanolamine, diethylenetriamine and triethylene tetramine in a volume ratio of 1: (1-2): (1-2). In the degradation liquid disclosed by the invention, monoethanolamine realizes amidation of degradable weak bonds in an epoxy resin cured substance under the promotion of diethylenetriamine and triethylene tetramine, and realizes degradation of amine cured epoxy resin; the degradation liquid provided by the invention can be used for rapidly and completely degrading a degradable epoxy resin cured product at a relatively low degradation temperature (about 100 DEG C), the degradation product is simply separated and purified to resynthesize the degradable epoxy resin, and the degradation liquid can be recycled through simple distillation.
Owner:BEIJING COMPOSITE MATERIALS (TENGZHOU) CO LTD +1

Smoke-suppression flame-retardant ecological board and preparation method thereof

The invention discloses a smoke-suppression flame-retardant ecological board and a preparation method thereof. The ecological board comprises a base material, a flame-retardant adhesive layer and a facing layer which are sequentially stacked, wherein the flame-retardant adhesive layer is prepared from the following raw materials: 100 parts of urea-formaldehyde resin, 10-15 parts of a phosphorus-nitrogen composite flame retardant and 5-10 parts of flame-retardant filler; the preparation method of the phosphorus-nitrogen composite flame retardant comprises the following steps: carrying out an aminomethylation reaction on p-hydroxybenzoic acid, ethanolamine and paraformaldehyde which are used as raw materials in a molar ratio of 1: (1-1.2): (2-2.2) to prepare a Mannich base intermediate; and carrying out substitution reaction on the Mannich base intermediate and phosphonitrilic chloride trimer serving as raw materials according to the molar ratio of (3-7): 1. The phosphorus-nitrogen flame retardant disclosed by the invention is high in content of phosphorus and nitrogen elements and uniform in distribution ratio, and has more excellent synergistic smoke suppression and flame retardant effects compared with an existing physical compound system.
Owner:DEHUA TB NEW DECORATION MATERIAL CO LTD

High-pressure amine absorption method carbon capture system and method coupled with liquefied air energy storage

The invention discloses a high-pressure amine absorption method carbon capture system and method coupled with liquefied air energy storage, and relates to the technical field of energy storage and carbon capture, the system comprises: an air compression unit used for compressing mixed gas of flue gas and air to generate high-pressure mixed gas, and detecting flow parameters of the mixed gas to generate high-pressure gas; the flue gas inlet amount and the high-pressure mixed gas flow are intelligently regulated and controlled; the heat conveying unit is used for conveying part of the high-pressure mixed gas and heat-conducting oil which are respectively used for carbon dioxide desorption and expansion power generation; and the absorption unit is used for introducing the high-pressure mixed gas from the top of the absorption tower, and absorbing carbon dioxide in the mixed gas by using an ethanolamine solution in the absorption tower to generate a rich solution. According to the invention, the air compression unit in the liquefied air energy storage system is utilized to pre-pressurize the flue gas to be subjected to carbon capture, increase the partial pressure of carbon dioxide, increase the solubility of carbon dioxide, increase the reaction rate of ethanol amine for absorbing carbon dioxide, increase the capture rate and reduce the dosage of ethanol amine solution.
Owner:TIANJIN UNIV OF COMMERCE

Injectable oxygen-carrying and drug-carrying microbubble composite hydrogel with immunoregulation function and preparation method of injectable oxygen-carrying and drug-carrying microbubble composite hydrogel

The invention discloses injectable oxygen-carrying and medicine-carrying microbubble composite hydrogel with immunoregulation performance and a preparation method of the injectable oxygen-carrying and medicine-carrying microbubble composite hydrogel, and belongs to the field of tissue damage treatment. The preparation method comprises the following steps: carrying out a reaction on hyaluronic acid HA and dipalmitoyl phosphatidyl ethanolamine DPPE to construct a microbubble monomer DPPE-HA; the preparation method comprises the following steps: fully dissolving DPPC (dipalmitoyl phosphatidylcholine), DPPE-HA (dipalmitoyl phosphatidylcholine) and a therapeutic drug into a solvent, introducing oxygen and carrying out mechanical oscillation to obtain oxygen-carrying and drug-carrying microbubbles; the oxygen-carrying and drug-carrying microbubbles are uniformly doped into a vinyl modified natural polymer solution, and the oxygen-carrying and drug-carrying microbubble composite hydrogel is formed through photo-crosslinking. The obtained injectable microbubble hydrogel can be used for treatment of different tissue injuries, including wound repair and burn treatment, osteochondral injury repair, cardiovascular disease treatment and nerve injury repair, in addition, the injectable microbubble hydrogel can also be applied to the fields of cosmetic plastic surgery, skin regeneration and the like, and has a wide clinical application prospect.
Owner:UNIV OF SCI & TECH BEIJING

Multi-source solid waste-based cementing material and preparation method thereof

ActiveCN120554009AAluminitePolyvinyl alcohol
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.
Owner:WEIFANG UNIVERSITY

A pH-sensitive curcumin nanoliposome, its preparation method and uses

This invention discloses a pH-sensitive curcumin nanoliposome, its preparation method, and its applications. The preparation method includes the following steps: dissolving 1,2-dioleoyl-SN-glycerol-3-phosphoethanolamine, cholesterol succinate monoester, cholesterol, pH-sensitive material, and curcumin in an alcohol solvent to obtain an inner-phase alcohol solution; dissolving a lyophilization protectant in water to obtain an outer-phase aqueous solution; the inner-phase alcohol solution is compressed by the outer-phase aqueous solution to form a laminar flow and diffuses into the aqueous phase to form a narrow mixed solvent region. When the ethanol content in the mixed solvent region is lower than the ethanol content required for the original substances to dissolve in the ethanol phase, the lipids will self-assemble to form liposomes. The liposomes prepared by this invention have a spherical morphology, controllable size, and sustained-release properties in vitro, showing good application prospects as anti-tumor drug carriers in the field of drug delivery.
Owner:CHINA PHARM UNIV

Bio-based sulfur-phosphorus-free nitrogen-containing borate organic molybdenum antifriction agent as well as preparation method and application of bio-based sulfur-phosphorus-free nitrogen-containing borate organic molybdenum antifriction agent

The invention relates to a bio-based sulfur-phosphorus-free nitrogen-containing borate organic molybdenum antifriction agent and a preparation method and application thereof.The preparation method comprises the following steps that A1, monoglyceride and boric acid are dissolved in methylbenzene and subjected to a heating reaction, triethanolamine is added, the reaction continues, and OBN is obtained; a2, OBN and MoO3 obtained in the step A1 are dissolved in methylbenzene, a heating reaction is conducted in the inert atmosphere, and OBN-Mo is obtained; or B1, dissolving monoglyceride and boric acid in toluene, carrying out a heating reaction, adding triethanolamine, and continuing the reaction to obtain OBN; b2, the OBN obtained in the step B1 and molybdenum acetylacetonate are subjected to a heating reaction in ethyl alcohol, and OBN-Mo-OBN is obtained. Compared with the prior art, the two bio-based sulfur and phosphorus-free nitrogen-containing borate organic molybdenum antifriction agents OBN-Mo and OBN-Mo-OBN can be compounded with ZDDP to prepare lubricating oil, so that the wear resistance of the lubricating oil has a synergistic interaction effect.
Owner:SHANGHAI INST OF TECH