556 results about "Ethanolamine" patented technology

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

The 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.

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.

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.

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.

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.

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

The invention 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.

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.

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

The invention 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.

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.

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.

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.

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.

The invention relates to the technical field of concrete product curing, and discloses a monoethanolamine-assisted wet carbonization curing process for a concrete product. According to the process, CO is dissolved in a monoethanolamine aqueous solution in advance to prepare a rich solution, the rich solution permeates into concrete capillary pores through spraying or soaking, and then the rich solution is heated at the temperature of 40-80 DEG C, so that CO is released inside and reacts with a hydration product to generate calcium carbonate. The method overcomes the defects of serious surface carbonization and insufficient depth of traditional carbonization maintenance, realizes uniform release and full reaction of carbon dioxide in a product, remarkably improves the carbonization depth, early strength and durability, is matched with a waste liquid regeneration system to realize closed-loop circulation, and has environmental benefits and industrial application values.

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

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

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

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

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

The invention relates to the technical field of photocatalytic materials, in particular to a multi-ion doped TiO2 nanosheet material suitable for degradation of dyes in water and a preparation method of the multi-ion doped TiO2 nanosheet material. The preparation method comprises the following steps: pre-embedding a self-sacrifice template in a germanium-tungsten composite doping solution, carrying out hydrothermal conversion to construct a Ge-W synergetic optimized regular TiO2 substrate, carrying out atomic layer deposition to realize nitrogen / silver uniform doping, and carrying out synergetic surface modification on silver nitrate-ethanolamine and perfluorosilane to prepare the TiO2 nanosheet material. Germanate serves as lattice strain guidance to guide TiO2 lattice growth to form a low-defect matrix, tungstate is cooperatively doped in the matrix to construct a strong built-in electric field to improve the charge separation efficiency, Ge-W elements cooperate to stabilize a bulk phase and a grain boundary, and a gradient protection barrier is constructed with selective shielding of a fluorosilane layer. The TiO2 catalyst is synergistically improved in the aspects of high catalytic activity and long-acting environmental stability, and is suitable for efficient pollutant purification in a complex water quality environment.

Provided is a cosmetic containing ascorbic acid and / or a salt thereof, which has excellent stability and reduced irritation to the skin. The cosmetic according to the present invention contains ascorbic acid and / or a salt thereof, ultrapure water, and an antioxidant, and the salt of ascorbic acid is at least one selected from the group consisting of a trimethylamine salt, a triethylamine salt, a monoethanolamine salt, a triethanolamine salt, a pyridinium salt, an arginine salt, an ammonium salt, a sodium salt, a potassium salt, a calcium salt, a magnesium salt, and an aluminum salt of ascorbic acid. The antioxidant is glutathione or sodium pyrosulfite, the pH of the cosmetic material is adjusted to 5.0-7.0, and the dissolved oxygen content of the cosmetic material is 0-5 mg / L.

The invention relates to an acrylic acid-organic silicon dual-modified polyester aqueous dispersion, which is prepared from the following components in percentage by weight: 1 to 5 parts of hexahydrophthalic anhydride, 10 to 15 parts of isophthalic acid, 1 to 5 parts of adipic acid, 15 to 20 parts of neopentyl glycol, 0.5 to 1 part of unsaturated binary acid, 1 to 2 parts of reflux solvent, 5 to 10 parts of acrylate mixed monomer, 0.5 to 1 part of acrylic acid, 5 to 10 parts of cosolvent, 1 to 5 parts of organic silicon modifier, 0.5 to 5 parts of dimethylethanolamine neutralizer and 40 to 45 parts of deionized water. The acrylic acid and the organic silicon are used for modifying the polyester at the same time, the weather resistance, the hydrolysis resistance and the adhesive force are remarkably improved while the high flexibility of the water-based polyester is kept, the synthesized water-based polyester dispersion can be used for preparing high-performance water-based coil steel coating or coil aluminum coating or other water-based amino coating with VOC smaller than or equal to 100 g / L, and good comprehensive performance is achieved.

The application discloses a modified polyurethane water-based functional coating and a preparation process thereof, and belongs to the technical field of water-based functional coatings. In the application, N,N-dimethylethanolamine is used as a blocking agent to block the isocyanate prepolymer, so that a latent type blocked isocyanate water-based polyurethane emulsion is prepared; lactide monomers, epoxy group grafted modified nano silicon dioxide and amino functionalized light stabilizer microcapsules are added into the emulsion; curing is carried out by using a two-stage process, that is, after preheating and water removal and film formation, 130-150 DEG C baking is carried out to trigger the deblocking of the DMEA blocked isocyanate, and the tertiary amine groups in the deblocked DMEA molecules immediately initiate the ring-opening polymerization of the premixed lactide monomers in the system in situ to generate polylactic acid segments which are chemically grafted to the crosslinked network. The application realizes the synchronous linkage of crosslinking and curing and polymer toughening, and the obtained coating has the characteristics of high crosslinking density, excellent flexibility and low internal stress.

The present invention relates to a composition containing (a) a guanidine and / or an unsubstituted guanidine salt, and (b) at least one further component selected from the group consisting of 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 1, 2-benzisothiazolin-3-one, N-butyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, the cleaning agent is prepared from 2-benzisothiazolin-3-one, octyl isothiazolinone, bronopol, dibromo-nitrilopropionamide, dibromo-dicyanobutane, butyl carbamic acid iodopropynyl ester, aminomethyl propanol, aminoethyl propylene glycol, monoethanolamine, ethylhexylglycerin, hexylglycerin, 1, 2-pentanediol, 1, 2-hexanediol, 1, 2-heptanediol, 1, 2-octylene glycol, phenoxy ethanol and phenethyl alcohol. The cleaning agent is prepared from phenyl propanol, benzyl alcohol, isopropanol, ethylenediamine tetraacetic acid, (1-hydroxyethylidene) diphosphonic acid, 2-mercaptopyridine sodium oxide, 2-mercaptopyridine zinc oxide, o-phenylphenol, sorbic acid, benzoic acid, salicylic acid, lactic acid, citric acid and zinc. The invention also relates to an industrial product containing components (a) and (b), and to the use of said composition for the preservation of containers and for the preservation of industrial products. The invention also relates to the use of (a) a guanidine and / or an unsubstituted guanidine salt for improving the antimicrobial efficacy of one or more compounds selected from the group (b) described above.

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

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

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