2755 results about "Acetone" patented technology

The invention provides an acetylacetone-based composite thermal stabilizer which is a mixture obtained by mixing zinc acetylacetonate, calcium acetylacetonate or magnesium acetylacetonate and hydrotalcite pro rata. The composite thermal stabilizer is suitable for chloride-containing high polymer, such as polyvinyl chloride, chlorinated polyethylene, chlorinated polyvinyl chloride, copolymer of vinyl chloride-ethylene or copolymer of vinyl chloride-vinyl acetate, has better thermal stability, prolongs the thermal aging time of the chloride-containing high polymer, and overcomes the shortcomings of poor long-term performance of single stabilizer of zinc acetylacetonate, poor transparency of stabilizer of calcium acetylacetonate, and poor initial colorability of stabilizer of hydrotalcite. The composite thermal stabilizer has low cost, good initial colorability, excellent long-term performance and good transparency, and is an efficient composite thermal stabilizer.

The invention discloses a reversible background-free hydrogel nanosensor for acetone detection and an intelligent sensing platform, and relates to the technical field of biosensors. The hydrogel nanosensor consists of a hydrogel matrix and an upconversion nanoprobe, and the upconversion nanoprobe comprises upconversion nanoparticles (UCNPs), hydroxylamine sulfate and thymol blue (TB). The invention adopts hydroxylamine sulfate as a specific recognition unit of acetone to construct a reversible luminescent hydrogel probe for acetone detection, and the probe can be reused in multiple detections, thereby reducing the cost of a single detection. In addition, by adopting near-infrared light as an excitation light source, the autofluorescence interference of the hydrogel matrix is ​​effectively avoided, thereby improving the detection accuracy.

The invention relates to the field of quantum dot ink, and discloses diffusion plate printing quantum dot ink and a preparation method thereof.The diffusion plate printing quantum dot ink comprises acrylic resin, hyperbranched polyester resin, a quantum dot material, modified boron nitride, a reactive diluent, a photoinitiator, a wetting agent and a defoaming agent; the hyperbranched polyester resin is prepared by reacting hyperbranched polyester acrylate and a sulfydryl-terminated silicon-containing reaction monomer, wherein the hyperbranched polyester acrylate is prepared by reacting pentaerythritol with 2, 2-dimethylolpropionic acid and then carrying out esterification reaction with acrylic acid; the sulfydryl-terminated silicon-containing reaction monomer is prepared by reacting eugenol with 1, 1, 3, 3-tetramethyldisiloxane and then carrying out esterification reaction with 3-mercaptopropionic acid; the modified boron nitride is prepared by modifying a cationic polymer which is prepared by carrying out a Mannich reaction on triethylene tetramine, formaldehyde and acetone and then carrying out a condensation polymerization reaction with formaldehyde. After the ink prepared by the invention is cured, a coating film is high in hardness, adhesive force and heat conductivity coefficient, and good in flexibility, heat resistance and migration barrier property.

The invention discloses a flame-retardant corrosion-resistant coating and a preparation method thereof, and relates to the technical field of coatings. When the flame-retardant and corrosion-resistant coating is prepared, hexaaryl biimidazole and epoxy chloropropane are subjected to a reaction, and epoxidized hexaaryl biimidazole is prepared; the pre-modified mica sheet and 3-aminopropyltriethoxysilane are subjected to a reaction, and a modified mica sheet is prepared; the preparation method comprises the following steps: reacting allyl amine with 4 '-[4-(bromomethyl) phenyl]-2, 2': 6 ', 2' '-terpyridyl to obtain allyl terpyridyl; the preparation method comprises the following steps: reacting epoxy resin with allyl terpyridyl to obtain modified epoxy resin; and uniformly mixing the modified epoxy resin, epoxidized hexaaryl biimidazole, the modified mica sheet, isophorone diamine and acetone to prepare the flame-retardant corrosion-resistant coating. The flame-retardant corrosion-resistant coating prepared by the invention has excellent corrosion resistance, flame retardance and self-repairing performance.

The invention discloses a waste wind power blade recycling process. The waste wind power blade recycling process comprises the following steps that S1, a waste wind power blade is cut into blocks; wherein manufacturing materials of the waste wind power blade comprise carbon fibers and epoxy resin; s2, the block is put into a swelling solution to be subjected to swelling treatment; wherein the swelling liquid comprises a swelling agent and a solvent, the swelling agent is an inorganic metal chloride, the solvent is composed of acetone and water, in the solvent, the mass percentage of acetone is 10-40%, the mass percentage of water is 60-90%, and in the swelling liquid, the molar concentration of the swelling agent is 0.004-0.1 M; s3, cracking the block subjected to swelling treatment to obtain a cracking product containing the inorganic filler and the carbon fiber material; and S4, recycling the carbon fiber material in the cracking product. The recycling process has the advantages of being efficient, environmentally friendly, low in cost and the like, and is suitable for large-scale resource recycling of the wind power blades.

The invention discloses a high-performance composite solvent-resistant nanofiltration membrane with a rigid twisted non-planar structure polyamide layer and a preparation method of the high-performance composite solvent-resistant nanofiltration membrane. The preparation method comprises the steps of preparation of the rigid twisted non-planar structure polyamide layer and surface modification. A water phase solution containing adamantane diamine and m-phenylenediamine and an organic phase solution containing 1, 3, 5-trimesoyl chloride and acetone are subjected to interfacial polymerization reaction to prepare a polyamide layer with a rigid twisted non-planar structure, and then a polyphenol modifier is used for carrying out hydrophilic modification on the polyamide layer, so that the rigid twisted non-planar structure is obtained. The pure water permeability and retention rate of the solvent-resistant nanofiltration membrane are obviously improved; due to the introduction of adamantane diamine, the interfacial polymerization process and the formation of a polyamide layer are remarkably regulated and controlled, and the separation performance of the solvent-resistant membrane is greatly improved on the premise that the interception performance of the membrane is hardly reduced; the preparation process is simple, and the prepared membrane is excellent in performance and has a good application prospect in the aspect of organic solvent separation.

The invention discloses a polytetrafluoroethylene film with high tensile strength and a preparation process thereof, and relates to the technical field of polytetrafluoroethylene films. The preparation method comprises the following steps: step 1, preparing a composite raw material: S1-1, sequentially putting a tetrafluoroethylene copolymer into acetone and methanol to be soaked, washed and dried; dispersing in a glycidyl methacrylate-methanol solution, and carrying out irradiation grafting in a nitrogen atmosphere; filtering, washing and drying to obtain an epoxy tetrafluoroethylene copolymer; s1-2, sequentially putting an epoxy tetrafluoroethylene copolymer and a composite filler into tetrahydrofuran, stirring for 24-48 hours at the temperature of 70-75 DEG C in a nitrogen atmosphere, filtering, washing and drying to obtain a composite raw material; 2, mixing polytetrafluoroethylene, the composite raw material and carboxylated polyphenylene sulfide to obtain a mixture; performing cold press molding and temperature-controlled sintering to obtain a basic film; 3, the basic film is subjected to turning forming and continuous rolling, and the polytetrafluoroethylene film is obtained.

The invention relates to the technical field of high polymer material chemistry, and discloses a high and low temperature resistant anti-yellowing optical adhesive and a preparation process thereof, the high and low temperature resistant anti-yellowing optical adhesive comprises the following components by weight: 40-60% of modified organic silicon resin, 20-30% of urethane acrylate, 10-15% of alicyclic epoxy resin, 0.5-5% of a nano inorganic filler, 0.8-2.5% of an anti-yellowing composite reagent, and the balance of a solvent. The coating is prepared from the following components in percentage by weight: 0.5 to 1.5 percent of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 0.1 to 0.3 percent of fluorine modified polyacrylate flatting agent and 0.3 to 1.0 percent of chloroplatinic acid-divinyl tetramethyl disiloxane complex catalyst. The preparation method comprises the following steps: mixing alpha, omega-dihydroxy polydimethylsiloxane and phenyltrimethoxysilane according to a mass ratio of 8: 2-7: 3, adding 0.3-1.0% of a chloroplatinic acid-divinyl tetramethyl disiloxane complex catalyst, and raising the temperature by stages under the protection of nitrogen, so that the glass transition temperature of the adhesive can reach 120 DEG C below zero and 125 DEG C, and the temperature of the adhesive can reach 120 DEG C below zero and 125 DEG C below zero. And the long-term service requirement of the optical device in an extreme temperature environment is met.

The invention discloses application of a compound shown as a formula I or salt or deuterated substance thereof in preparation of an anti-saccharification agent, in which ring A is a benzene ring or a five-membered ring containing O or S; the ring A may be substituted by m Ra, m being 0, 1, 2, 3 or 4; ra is hydroxyl, methyl, methoxyl, nitro or dimethylamino, and the deuterated substance is a partial deuterated substance and / or a perdeuterated substance. In the experiment of inhibiting generation of AGEs, compared with an Amino guanidine AG (Amino guanidine, AG), the anti-saccharification effect is obvious: under the low concentration, the anti-saccharification inhibition rate (the final administration concentration is 33 mu M) of the aromatic methylene acetone active small molecule compound protected by the invention is between 10% and 58%, and is far higher than the anti-saccharification inhibition rate (8.4%) of the Amino guanidine AG under the same final administration concentration (33 mu M), and the anti-saccharification inhibition rate (8.4%) of the Amino guanidine AG is far higher than the anti-saccharification inhibition rate (8.4%) of the Amino guanidine AG under the same final administration concentration (33 mu M) of the Amino guanidine AG. And the anti-saccharification inhibition rate of the radix codonopsis AG approaches to the final administration concentration (1mM) and is 57%. # imgabs0 #

The invention discloses a fluralamide moxidectin drop and a preparation method thereof, and relates to the technical field of veterinary drugs. The drop is prepared from the following components in parts by weight: 26 to 26.5 parts of fluralan, 1.32 parts of moxidectin, 0.10 part of butylated hydroxytoluene, 29.5 to 30.5 parts of dimethylacetamide, 19.5 to 20 parts of tetrahydrofuran polyethylene glycol ether, 13 to 13.5 parts of diethyl toluamide, 8.5 to 9.3 parts of acetone and 1.0 to 1.5 parts of ethanol. The invention has the effects of improving the stability, permeability and lasting effect of the medicine.

The invention provides a method for simultaneously detecting various micro-plastics in water, and belongs to the technical field of micro-plastic detection. The method comprises the steps of sample pretreatment, thermal cracking-gas chromatography-mass spectrometer measurement, qualitative analysis and quantitative analysis. The method comprises the following steps: taking a water sample, uniformly shaking, filtering with a filter membrane, taking the filtered filter membrane, adding acetone, carrying out ultrasonic elution, washing the filter membrane, and collecting an eluent; adding acetone into the eluted filter membrane, carrying out ultrasonic elution again, washing the filter membrane, collecting the eluent, combining the two eluents, heating and concentrating in a water bath, adding acetone, ultrasonically mixing, transferring into a cracking cup, heating and volatilizing, and determining by a thermal cracking-gas chromatography-mass spectrometer. Carrying out qualitative analysis through analysis of cracking products with different types of micro-plastic characteristics, and then carrying out quantification through an external standard method; the method provided by the invention can accurately quantify the six microplastics in the effluent, and has the advantages of simple pretreatment, small sampling amount, high accuracy and lowest detection limit of 0.012 [mu] g / L.

The present application provides a device and method for preparing methyl isoamyl ketone. In the method, acetone and isobutyraldehyde are reacted under the catalysis of a condensation catalyst and a hydrogenation catalyst in the presence of hydrogen to obtain the methyl isoamyl ketone, wherein the condensation catalyst comprises an organic base; and the molar ratio of the condensation catalyst to the isobutyraldehyde is (0.02-0.15):1. The MIAK obtained by the method has at least one of the advantages of high conversion rate, simple process flow, low production cost, easy separation of side reaction products, and high product purity.

The invention relates to flower-like FeCoNiMnPt high-entropy magnetic alloy powder and a preparation method of the flower-like FeCoNiMnPt high-entropy magnetic alloy powder. According to the technical scheme, the preparation method comprises the following steps: respectively dissolving ferric acetylacetonate, cobalt acetylacetonate, nickel acetylacetonate, manganese acetylacetonate and platinum acetylacetonate in oleylamine at equal concentration, and carrying out ultrasonic dispersion to obtain a solution A; respectively dissolving octadecyl trimethyl ammonium bromide and glucose in the solution A at equal concentration, carrying out ultrasonic dispersion, adding the obtained solution B into a sealed container, putting the sealed container into a high-pressure reaction kettle, putting the high-pressure reaction kettle into a hydrothermal oven, carrying out heat preservation and cooling, and taking out the sealed container; the obtained solution C is subjected to centrifugal treatment, washing, drying and cooling, and magnetic alloy powder is obtained; and placing the crucible filled with the magnetic alloy powder in a tubular atmosphere furnace, preserving heat at 450-650 DEG C, and cooling to obtain the flower-like FeCoNiMnPt high-entropy magnetic alloy powder. The preparation method is simple in process, low in cost and high in production efficiency, and the prepared product is large in specific surface area and high in saturation magnetization.

The invention discloses a fluoride-free waterproof sound-transmitting film and a preparation method thereof, and the fluoride-free waterproof sound-transmitting film comprises the following components in percentage by mass: 30-40% of a fluoride-free polymer; 4.5%-11.5% of a fluoride-free waterproof agent; 0.5%-3.5% of a cross-linking agent and 45%-65% of a solvent; the solvent is a mixed solvent of N 'N-dimethylformamide, N' N-dimethylacetamide, acetone and ethyl acetate, and the mass ratio of the amide solvent in the mixed solvent is 60%-85%; the preparation method of the fluoride-free waterproof sound-transmitting film comprises the following steps: preparing a spinning solution; carrying out electrostatic spinning by utilizing electrostatic spinning equipment to obtain a continuous and uniform nano spinning membrane; the method comprises the following steps: uniformly depositing nanofibers on a nano spinning film base material, and carrying out post-treatment to obtain a finished product of the fluoride-free waterproof sound-transmitting film, the fluorine-free safe and healthy product with good water resistance and air permeability, high rebound resilience and excellent acoustic performance is successfully prepared through selection of raw materials, preparation of a spinning solution, spinning process parameters and fine regulation and control of post-treatment conditions.

The invention discloses a wear-resistant vehicle body film and a preparation method thereof, and relates to the technical field of films. The wear-resistant automobile body film prepared by the invention is prepared from polytetrahydrofuran ether glycol, isophorone diisocyanate, a catalyst, dihydric alcohol quaternary ammonium salt, a functional aid, modified silicon dioxide and a chain extender. The dihydric alcohol quaternary ammonium salt is obtained by reacting N, N '-dihexyl-N, N'-dimethyl propane-1, 3-diamine with monochloroacetone and then condensing with glycerol; the functional additive is obtained by reacting 2-boric acid thiophene-4-methyl acetate with 2, 7-dibromofluorene and then carrying out bromination hydrolysis; the modified silicon dioxide is obtained by reacting pretreated silicon dioxide with melamine and then reacting with sodium hypophosphite. The wear-resistant vehicle body film prepared by the invention has good anti-aging, wear-resistant, antibacterial and flame-retardant properties.

The invention discloses a hydrogel wound dressing with a synergistic healing promoting function as well as a preparation method and application thereof. The preparation method comprises the following steps: 1, dissolving oxidized methacrylated hyaluronic acid and dopamine in deionized water to obtain a solution A; the preparation method comprises the following steps: dissolving N-isopropylacrylamide, a photoinitiator 2-hydroxy-2-methyl-1-(4-(2-hydroxyethoxy) phenyl)-1-acetone and a cross-linking agent N, N '-methylene bisacrylamide in deionized water to obtain a solution B; 2, mixing the solution A and the solution B to obtain a pre-gel solution; or dissolving polyphenylboronic acid ester nanoparticles or polyphenylboronic acid ester-kaempferol with deionized water to obtain a solution C, and mixing the solution C with the solution A and the solution B to obtain a pre-gel solution; and 3, injecting the pre-gel liquid into a mold, and illuminating to obtain the hydrogel wound dressing loaded with the nanoparticles. The hydrogel disclosed by the invention can be used for effectively solving various problems in a wound healing process and promoting rapid and high-quality healing of a wound.

The invention discloses a synthesis method of 2-bromomethyl-5-trifluoromethyl furan, which comprises the following steps: S1, carrying out reaction on acetoacetate and halogenated trifluoroacetone under the action of an alkaline substance and a catalyst to generate a 2-acetyl-5, 5, 5-trifluoro-4-oxovalerate crude product; s2, carrying out a cyclization reaction on the 2-acetyl-5, 5, 5-trifluoro-4-oxovalerate crude product, so as to obtain a 2-methyl-5-(trifluoromethyl) furan-3-formate crude product, and carrying out a cyclization reaction on the 2-acetyl-5, 5, 5-trifluoro-4-oxovalerate crude product to obtain a 2-methyl-5-(trifluoromethyl) furan-3-formate crude product; s3, adding an alkaline substance into the crude product, carrying out hydrolysis, and adding acid to adjust the pH value after the hydrolysis is completed, so as to obtain 2-methyl-5-(trifluoromethyl) furan-3-formic acid; s4, the 2-methyl-5-(trifluoromethyl) furan-3-formic acid is subjected to a heating decarboxylation reaction, and 2-methyl-5-(trifluoromethyl) furan is obtained; and S5, carrying out a bromination reaction on the 2-methyl-5-(trifluoromethyl) furan and a bromination reagent to obtain a final product 2-bromomethyl-5-(trifluoromethyl) furan. The raw materials used in the synthesis method are easy to obtain, use of control chemicals is not involved, and industrialization is easy to achieve.

An active energy ray-curable inkjet printing ink composition satisfies requirements A to E below is provided: (A) the content of amine-modified oligomer is 1.0 to 20.0% by mass; (B) alkoxy group-containing (meth)acrylate monomers are contained by 2.0 to 20.0% by mass; (C) (meth)acrylate monomers having an alkyl group with 6 to 20 carbon atoms is contained by 2.0 to 25.0% by mass; (D) at least one type selected from the group that consists of 1,6-hexanediol diacrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, 1,10-decanediol diacrylate, propoxylated(2)neopentyl glycol diacrylate, and hydroxypivalic acid neopentyl glycol diacrylate is contained by 30.0 to 60.0% by mass; (E) as photopolymerization initiators, ethoxy(2,4,6-trimethylbenzoyl)phenylphosphine oxide is contained by 3.0 to 15.0% by, and oligo(2-hydroxy-2-methyl-1-(4-(1-methylvinyl)phenyl)propanone) and / or 2-hydroxy-1-{4-[4-(2-hydroxy-2-methylpropionyl)phenoxy]phenyl}-2-methylpropanone is / are contained by 2.0 to 10.0% by mass, where the total content of photopolymerization initiators is 6.0 to 25.0% by mass.

The invention discloses a crown ether functionalized covalent organic framework material as well as a preparation method and application thereof, and the method comprises the following steps: adding a covalent organic framework material, 4-bromobenzo-15-crown-5, potassium carbonate and potassium iodide into an acetone solution for reaction, washing the obtained crude product, performing Soxhlet extraction with tetrahydrofuran for a certain time, and drying to obtain the crown ether functionalized covalent organic framework material. The crown ether functionalized covalent organic framework material is obtained. Compared with a synthesis method of crown ether functionalized COFs in the prior art, the method has the advantages that the crown ether (4-bromobenzo-15-crown-5) can be grafted to the COFs in one step, the Na < + > adsorption capacity and the adsorbent recycling performance are greatly improved, the synthesis method is simple, and synthesis of the crown ether functionalized COFs is greener, more convenient and more economical.

The invention provides a preparation method of a two-dimensional high-strength coating material, which comprises the following steps: under the protection of inert gas, dissolving melamine and trimesoyl chloride as reaction monomers in a solution A, adding triethylamine as an acid-binding agent, and promoting amidation reaction through magnetic stirring; after the reaction is finished, washing with saturated saline solution and NaHCO3 to remove impurities, and then obtaining high-purity two-dimensional polymer powder through the steps of solution mixing, ultrasonic treatment, centrifugal separation and the like. And finally, dissolving polymer powder in the solution F to prepare two-dimensional polymer solutions with different concentrations, and coating the two-dimensional polymer solutions on the surface of a substrate pretreated by acetone and isopropanol to obtain a flat and compact coating film. The triethylamine is adopted as the acid binding agent, so that the purity and the reaction efficiency of the polymer are improved, the preparation controllability and the structural uniformity of the coating material are remarkably improved, and the high-performance coating requirements in the fields of machinery, chemical protection and the like are met.

The invention relates to the technical field of fuel cells, and mainly relates to a carbon-supported metal catalyst and a preparation method thereof. The preparation method comprises the following steps: dispersing platinum acetylacetonate, acetylacetone salt of transition metal and a carbon material in a solvent, drying to remove the solvent to obtain a precursor, and annealing for the first time in an air atmosphere to obtain a mixture; annealing the mixture for the second time in a hydrogen-argon atmosphere, cooling, pickling, washing, drying, and annealing for the third time in the hydrogen-argon atmosphere to obtain the carbon-loaded metal catalyst. According to the preparation method, platinum and acetylacetone salt of transition metal are used, after uniform dipping, annealing is directly carried out in the air atmosphere, two-step gas phase reduction is carried out in the hydrogen argon atmosphere, the platinum-based intermetallic compound nano-particles wrapped by the adjustable carbon layer are prepared, particle aggregation is effectively prevented, the prepared catalyst is high in order degree, and the catalyst has good catalytic activity. And the particles are fine and uniformly distributed and have excellent activity.

The invention relates to the technical field of waterproof materials, and particularly discloses a high-elasticity waterproof emulsion and a preparation method thereof. The invention discloses a high-elasticity waterproof emulsion. The water-based paint is prepared from the following raw materials in parts by mass: 40 to 60 parts of modified acrylic resin emulsion, 25 to 40 parts of waterborne polyurethane, 3 to 6 parts of hydroxyethyl methylacrylate, 0.5 to 1 part of mercaptopropionic acid, 6 to 8 parts of fluorinated mica sheet, 3 to 6 parts of organic silicon emulsion, 2 to 4 parts of fluorocarbon surfactant, 0.8 to 1.5 parts of adipic dihydrazide, 0.3 to 0.8 part of dynamic cross-linking agent, 3 to 8 parts of compatilizer, 0.5 to 1 part of antioxidant, 0.5 to 1 part of anti-aging agent, 0.5 to 1.5 parts of defoaming agent and 40 to 55 parts of solvent. The modified acrylic resin emulsion is prepared from a monomer comprising diacetone acrylamide. The high-elasticity waterproof emulsion prepared by the invention has relatively good elasticity, waterproof performance and aging resistance.

The invention relates to an electrolytic copper foil anode plate electrode and a preparation process thereof, and belongs to the technical field of electrolytic copper foil production. The electrolytic copper foil anode plate electrode sequentially comprises a titanium substrate, an Ir-Ta oxide transition layer and an IrO2-RuO2-SnO2 oxide composite coating from inside to outside. The preparation process comprises the following steps: firstly, forming a micron-sized rough surface by utilizing acetone and ethanol ultrasonic cleaning and oxalic acid etching; the transition layer is subjected to sol dispersion and sintering treatment through polyethylene glycol, so that the balance of low porosity and high bonding strength is realized; the composite coating adopts an acetylacetone-ethylene glycol monomethyl ether solvent system, and a nanocrystalline structure is formed through step-by-step sintering; and an Ir-rich passivation layer is generated through electrochemical activation, and the finally obtained anode plate electrode has more excellent electrochemical activity and longer service life.

The invention relates to the technical field of sewage treatment, in particular to an electrostatic spinning PVDF nanofiber membrane for sewage treatment and a preparation method and application of the electrostatic spinning PVDF nanofiber membrane. The preparation method comprises the following steps: dissolving PVDF (Polyvinylidene Fluoride) particles in a mixed solvent of DMF (Dimethyl Formamide) and acetone, adding nano TiO2 particles subjected to APTES (Aminopropyltriethoxysilane) surface modification, and adding PVP (Polyvinyl Pyrrolidone) into the solution to obtain a uniform spinning solution; spinning by adopting electrostatic spinning equipment to obtain a PVDF / TiO2 / PVP nanofiber membrane; the nanofiber membrane is soaked in a sodium hydroxide solution, then the membrane is soaked in a Tris-HCl buffer solution containing dopamine, and the final electrostatic spinning PVDF nanofiber membrane is obtained. The average diameter of nanofibers of the nanofiber membrane is 200-300nm, the porosity of the membrane is 70-80%, and the water contact angle is less than 60 degrees; when the nanofiber membrane is used for treating sewage containing organic pollutants and heavy metal ions, the removal rate of the nanofiber membrane on methyl orange can reach 95% or above; the rejection rate of copper ions can reach 90% or above; the removal efficiency of organic pollutants and heavy metal ions is obviously improved.

The invention relates to the technical field of polyamide cord fabrics, and particularly discloses a preparation method and application of a high-performance polyamide cord fabric. The preparation method comprises the following steps: S1, taking diethanol amine and formaldehyde, stirring, heating, vacuumizing under reduced pressure, cooling, adding 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, and continuously stirring to obtain an intermediate; s2, taking the intermediate, triethylamine and acetone, cooling, adding triethylamine under the protection of nitrogen, uniformly stirring, dropwise adding a mixed solution of a composite cross-linking agent and acetone, stirring, and removing a solvent to obtain a heat-resistant modifier; s3, adding a heat stabilizer, a heat-resistant modifier and nylon particles into a mixed solvent, uniformly stirring, carrying out ultrasonic treatment under ultraviolet irradiation, and removing the solvent to prepare pretreated nylon particles; s4, carrying out melt spinning on the pretreated nylon particles and nylon particles to obtain high-performance nylon industrial yarns; and spinning to obtain the high-performance polyamide cord fabric.

The invention provides efficient gelatin hemostatic microspheres as well as a preparation method and application thereof, the preparation method comprises the following steps: mixing a gelatin solution with a tannic acid solution, and uniformly stirring to obtain a tannic acid modified gelatin aqueous solution; uniformly mixing span-80 with liquid paraffin to obtain an oil phase; adding the tannic acid modified gelatin aqueous solution into an oil phase, and uniformly stirring to obtain a mixed solution; the mixed solution is subjected to a cross-linking reaction under the ice bath condition, after the cross-linking reaction is completed, a reaction solution and acetone are mixed, liquid paraffin is removed after standing, and the tannic acid modified hemostatic microspheres are obtained after drying; mixing the tannic acid modified hemostatic microspheres with an adsorbent, and dehydrating to obtain the gelatin hemostatic microspheres. The prepared gelatin hemostatic microspheres can be attached to the surface of tissue and have the effects of high water absorption and rapid hemostasis.

The invention discloses a low-staining low-viscosity waterborne polyurethane macromolecular coloring agent and a preparation method of the low-staining low-viscosity waterborne polyurethane macromolecular coloring agent. Comprising the following components in parts by weight: 15 to 30 parts of aliphatic diisocyanate, 15 to 30 parts of micromolecular dye, 10 to 30 parts of polypropylene glycol and / or dihydroxy silicone oil, 25 to 50 parts of polyethylene glycol, 1 to 3 parts of micromolecular dihydroxy compound chain extender, 0.05 to 0.3 part of catalyst, 90 to 140 parts of acetone and 50 to 300 parts of water. By designing the hydrophilicity and proportion of the soft and hard segments of the polyurethane coloring agent, the waterborne polyurethane macromolecular coloring agent color paste which is low in staining, easy to clean, less than 1000mpas in product viscosity, more than 5% in color concentration and more than 5% in dye equivalent and good in compatibility is finally obtained, and the waterborne polyurethane macromolecular coloring agent color paste can meet the requirements of liquid product coloring agents such as clothing care and household cleaning agents. The cleaning agent can also be used for liquid cleaning agent products for body care and catering.

The invention discloses a low-temperature waste heat recovery method and system of a phenol-acetone device and application of the low-temperature waste heat recovery method and system. The method comprises the following steps: generating first steam and first condensate by a low-pressure flash tank of a phenol-acetone device, and carrying out primary heat exchange on the first condensate and an oxidation feed to obtain the first condensate after heat exchange; changing the first condensate after heat exchange to normal pressure, mixing the first condensate with the second condensate to obtain third condensate, and performing secondary heat exchange on the third condensate and the gas-phase material at the top of the benzene tower to obtain third condensate after heat exchange; the third condensate obtained after heat exchange is subjected to pressure reduction and then subjected to flash evaporation treatment, low-temperature negative-pressure steam and condensate are generated, and part of the condensate serves as second condensate to be used; heating and pressurizing the low-temperature negative-pressure steam, and then carrying out steam-water separation to obtain second steam; the first steam and the second steam are optionally recycled. Waste heat of condensed water in the low-pressure flash tank is fully utilized, integrated heat exchange and optimized utilization are carried out on the waste heat and materials of the device, and the energy-saving and consumption-reducing effects are achieved.

The present invention discloses an infrared-shielding polyurethane glass film and a preparation method thereof, relating to the field of polymer materials technology. When preparing the infrared-shielding polyurethane glass film, the present invention comprises reacting an organic nickel complex and 3-imidazole-1-propionic acid to produce a functionalized crosslinker; sequentially reacting 4-aminophenylacetonitrile with 3-hydroxypropyl acrylate and quinoline-4-carboxaldehyde to produce a UV-absorbing monomer; reacting polypropylene glycol, a UV-absorbing monomer, 1,4-butanediol, and 4-chloromethyl-1,3-phenylenediisocyanate to polymerize to produce polyurethane; reacting tungsten-doped titanium dioxide and chloropropyltriethoxysilane to produce modified titanium dioxide; and uniformly mixing the polyurethane, modified titanium dioxide, the functionalized crosslinker, and acetone, followed by coating and curing to produce the infrared-shielding polyurethane glass film. The infrared-shielding polyurethane glass film prepared by the present invention has excellent infrared shielding, anti-aging, antibacterial, and mechanical properties.

The invention belongs to the technical field of sustainable battery electrolyte design, is applied to an aqueous ammonium ion energy storage system, and particularly relates to a design method and a preparation method of an ammonium ion battery electrolyte additive adaptive to a high-voltage Prussian blue positive electrode material. According to the design method, electrostatic potentials (ESP) of different aprotic solvents are compared through quantum chemistry calculation, and finally acetone (ACE) is selected as an electrolyte additive to construct a weak solvation electrolyte system based on hydrogen bond interaction. The saturated addition amount of acetone in 1.0 mol L <-1 > (NH4) 2SO4 aqueous solution is determined through a pre-experiment, and is marked as 25% ACE. The electrolyte shows high suitability with a high-voltage Prussian blue positive electrode material (N-VHCF). Benefited from the construction of a competitive water-poor solvation structure and the blocking of a hydrogen bond network, the hydrogen evolution reaction and the oxygen evolution reaction in a 25% ACE electrolyte are inhibited, and the excellent performance of the Prussian blue positive electrode material (N-VHCF) under high discharge voltage is realized.