88results about How to "Simple preparation route" patented technology

The method of the present invention provides a Method of preparing a spinnable mesophase and carbon fiber by using coal to directly liquefy residue-based asphalt vinyl material. According to the invention, the residue-based asphalt vinyl material which is subjected to direct coal liquefaction as a raw material, and the method comprises the following steps: grinding the asphalt vinyl material, and then placing in a high temperature tube type furnace or a high pressure reaction kettle under the inert gas protection, and preparing under the temperature of 200-500 DEG C and the pressure of 0.1-10 MPa to obtain the spinnable mesophase, performing processes of melt spinning, preoxidation and carbonization treatment on the mesophase to prepare the carbon fiber. The invention has the advantages of simple preparation method, conventional equipment, cheap raw material, good product quality and environmental protection, and is a method for high-value utilization of coal resource. The prepared carbon fiber can be used for high performance aerospace materials, adsorbents with high efficiency, separating agents, catalysts and catalyst carriers and the like.

The invention provides a preparation method and applications for a metal monoatomic material. The method selects a metallic compound containing a metal-nonmetal coordination structure; destruction toa catalytically active structure can be effectively prevented through a processing mode of performing pyrolysis after the metallic compound, a protective agent and any carbon substrates are simply mixed; and therefore, the metal monoatomic material can be efficiently prepared and shows good performance. The technical route of the method is simple and effective and has universality and good application prospects.

The invention belongs to the technical field of semiconductor manufacture, and particularly relates to a UV-curing ink and a method for preparing a masking plate using the ink. The UV-curing ink is composed of a photoactive pre-polymer, a photoinitiator, an active monomer, pigment and additives. The UV-curing ink is put into a UV plate inkjet printer; a graphical masking plate is printed on a substrate through the UV plate inkjet printer; the graphical masking plate is put into an oven for baking to prepare the masking plate; and furthermore, electrodes of organic electronic devices are prepared on the masking plate through photolithography. The masking plate prepared by the method in the invention is tidy in appearance edge and smooth in surface, has no stain, is simple in operation process, requires no special technology and special equipment, is suitable for the normal masking plate for manufacturing semiconductor electrodes, and is easy for popularization and use.

The invention, belonging to the field of electrochemical engineering and industry, particularly relates to a method for preparing an electrolyte of a vanadium flow battery, comprising the following steps: using soluble vanadate or its solution as a raw material, reacting deposits obtained by reducing pentavalent vanadium through adding a reducing agent in a neutral or alkaline solution with vanadate or potassium vanadate in a sulfuric acid solution, or precipitating vanadate in an acid solution and then reacting with the reducing agent in the sulfuric acid solution, to prepare an aqueous solution having a sulfuric acid concentration of 1-6 mol/L and a total vanadium concentration of 1-5 mol/L. The electrolyte can be directly used as the electrolyte of positive and negative electrode of the vanadium flow battery. The method has the advantages of few operation steps, simple process, and stable quality, and is especially suitable for the application of vanadium flow batteries.

The invention belongs to the field of organic electronic devices and particularly relates to a patterned electrode preparation method. The invention adopts the technical scheme as follows: an electrode pattern protection film with oil ink is printed on the substrate of an electrode by a UV flat inkjet printer, the substrate is put into a corrosive liquid to corrode the electrode not protected by the oil ink on the substrate so as to form the patterned electrode on the substrate, the oil ink is removed through ultrasonic washing with the help of deionized water and an alkaline solution, then the patterned electrode is prepared, and the organic electronic device is further prepared on the patterned electrode. The patterned electrode prepared through the method provided by the invention has tidy edges, is not zigzag and simple in operation and does not need special process or equipment, and the patterned electrode preparation method is suitable for manufacturing a metal oxide electrode commonly used for a semiconductor device, and popularization and application are facilitated.

The invention discloses a calcined anionic clay visible-light catalyst and a preparation method and purposes thereof. The catalyst is prepared by the following steps of preparing mixed solution of metal salts and urea; heating the mixed solution to the temperature of between 100 and 120 DEG, reacting for 36 to 54 h, and obtaining acidic turbid liquid of which the pH value is between 6.0 and 6.5; centrifuging the acidic turbid liquid, taking precipitation out, washing the precipitation by deionized water until the pH value is neutral, and dewatering and drying; and grinding the dried precipitation, calcining the precipitation at the temperature of between 400 and 900 DEG C for 4 to 6 h, and thus obtaining the calcined anionic clay visible light catalyst, wherein the metal salts comprise divalent metal salts and trivalent metal salts. The prepared calcined anionic clay visible light catalyst can catalytically degrade organic wastewater in visible light, ultraviolet light equipment is not required, a feeding ratio is low, the degradation time is short, and the calcined anionic clay visible-light catalyst has low energy consumption and high efficiency and is suitable for the treatment of medium and low-concentration industrial wastewater.

The invention discloses an antibiosis oxidized graphene heat dissipation coating for artificial turf and a preparing method thereof. The coating comprises, by weight, 1-10 parts of light-cured oxidized graphene, 50-80 parts of plant-based light-cured resin, 10-30 parts of antibacterial activated monomer, 1-4 parts of photoinitiator and 1-3 parts of antibiosis assistant. The coating can effectively solve the problem that the heat dissipation of artificial turf is hard, and has the advantages that heat dissipation property and antibacterial property are excellent, cost is low, environment friendliness is realized, and the preparing process is simple.

The invention relates to C08F, in particular to a cycloolefin copolymer with polar groups and a preparation method of the cycloolefin copolymer. Structural units of the cycloolefin copolymer comprise a vinyl unit A, a non-polar unit B and a polar unit. According to the cycloolefin copolymer provided by the invention, the polar cyclic unit is introduced, so that the compatibility and cohesiveness of the material in the use process can be promoted, and meanwhile, the structure of the non-polar unit and the polar unit can be controlled, so that the cycloolefin copolymer has high light transmission and provides high optical performance under different vinyl chain unit copolymers. By adjusting the use amount of a polar unit and a non-polar unit relative to a vinyl unit, the inventor finds that the polar copolymer is controlled to have a wide-range adjustable glass transition temperature, the formation of an amorphous structure can be promoted, the generation of a crystalline chain segment is avoided, and the improvement of optical characteristics is further promoted; the copolymer application range is expanded.

The invention provides a high-transparency copolymerization type fluorine-containing polyimide thin material and a preparation method of the high-transparency copolymerization type fluorine-containing polyimide thin material. The polyimide thin material has good solubility and firm forming property; a prepared polyimide thin film has excellent optical transparency and good thermal performance. The preparation method of the high-transparency copolymerization type fluorine-containing polyimide thin material comprises the following steps: under nitrogen protection, dissolving an aromatic diamine monomer containing a bistrifluoromethyl structure, a non-fluorine-containing monomer and a tetracarboxydiphthalic ether dianhydride monomer into an organic solvent according to a certain metering ratio; adding a certain amount of a catalyst and raising temperature to 170 DEG C to 190 DEG C; carrying water through a nitrogen gas flow; after stirring and reacting for 8h to 12h, finishing reaction; precipitating, filtering and drying to obtain fiber-shaped copolymerization type fluorine-containing polyimide resin; furthermore, coating a film on flat plate glass through a polymer solution of the fiber-shaped copolymerization type fluorine-containing polyimide resin, and drying to obtain the high-transparency polyimide film.

The invention discloses a method for preparing a homogeneous-phase ion exchange membrane of an all-vanadium battery by use of a slurry coating method. The method comprises the following steps: adding styrene, divinylbenzene, chlorinated polyethylene and benzoyl peroxide to a reaction kettle and stirring evenly to obtain a slurry; secondly, spreading a polyester thin film on a smooth polished aluminum plate and placing long-filament polyvinyl chloride fiber cloth on the polyester thin film, pouring the slurry onto the long-filament polyvinyl chloride fiber cloth, and finally, covering with another polished aluminum plate, putting into a press, pressurizing and heating, cooling, taking out, and stripping to obtain a base film; putting the base film in concentrated sulfuric acid containing silver sulfate for sulfonating, cooling, and then taking out the base film and soaking the base film into the aqueous solution of sulfuric acid; putting the base film in chloromethyl ether for reacting for 8 hours at 40-50 DEG C in an airtight state, thereby obtaining a chloromethyl film; soaking the chloromethyl film in the aqueous solution of trimethylamine for reacting for 8-10 hours at 30-35 DEG C, taking out, and washing by use of purified water to obtain a strong base quaternary ammonium anion-exchange membrane. With the method, large-size homogeneous-phase ion exchange membranes can be prepared, and the chemical stability and the like of the ion exchange membranes can be improved.

The invention discloses a fluorescent probe having a hydrogen peroxide (H2O2) detection function and a preparation method and application thereof. The fluorescent probe is a novel fluorescent probe prepared by using 4-pyridine formaldehyde, dithiooxamide and 4-bromomethyl phenylborate pinacol ester as raw materials. Further studies show that the probe can achieve rapid and sensitive detection of H2O2. Compared with existing fluorescence detection technologies, the fluorescent probe obtained by means of the method has the advantages that the selectivity to H2O2 is high, there are no organic solvent residues, the response is sensitive, a synthesis route is simple, and a detection method is simple. The preparation method is applicable to practical production application and has a great application prospect in the technical fields of analytical chemistry, medicine, life science, environmental engineering and the like.

The invention discloses a tetrahydrofuran benzodihydropyran polycyclic compound shown as a formula (I). The tetrahydrofuran benzodihydropyran polycyclic compound is prepared by the following steps: performing 3+2 cycloaddition on isatin diazo, ortho-substituted benzaldehyde and nitrophenyl alkene under the catalysis of rhodium acetate to construct a multi-substituted tetrahydrofuran intermediate; adding a base and performing intramolecular Michael addition to further cyclize so as to synthesize the tetrahydrofuran benzodihydropyran polycyclic compound. The compound has excellent inhibitory activity on histone deacetylase.

The invention discloses a preparation method of gamma-valerolactone spice and an application method in cigarettes. The preparation method comprises the steps: using levulinate as a raw material; reacting for 3 to 5 hours at normal temperature and normal pressure in NaOH solution under the action of KBH4; decompressing for steaming out ethanol; regulating the pH of mother solution by dilute sulphuric acid; then extracting by ethyl acetate; drying by anhydrous sodium sulfate; standing over a night; decompressing; condensing; and obtaining the spice. The obtained spice is added to cigarette tobacco or tobacco groups by the dosage of 0.05% to 0.2% for smoking and commenting by sense organs. The spice increases and regulates cigarette fragrance and increases complete degree, mellow feel, fluency and sweet feel of the cigarette fragrance.

The invention relates to a preparation method of a UV (ultraviolet) curing polythiophene derivative conductive polymer material, and belongs to the technical field of a conductive polymer material. According to the preparation method, a thiophene derivative monomer with a UV curing photosensitive group is prepared through a reaction of diisocyanate and a thiophene derivative, and then the thiophene derivative monomer is polymerized, so that a product of the UV curing polythiophene derivative conductive polymer material is obtained. The conductive polymer material fills up the blank of the UV curing conductive polymer material, further, an adopted preparation process is simple and easy to operate, a catalyst and a reaction medium solvent have a wide selection range, the processing condition is mild, and the requirement for reaction equipment is not high; and moreover, a reversible reaction is not caused easily, the yield is higher than 65%, and favorable conditions are provided for industrialization of the material and the preparation method in the future.

The invention discloses a modified coal gangue powder filled polyolefin flame-retardant composite material and a preparation process, and belongs to the technical field of polyolefin flame-retardant composite material preparation. The weight ratio of the modified coal gangue powder to the polyolefin in the composite material is (10-60):100, and the modified coal gangue powder contains a cyclotriphosphazene derivative, which has a novel structure and can be used as a surface modifier and a flame retardant. The coal gangue powder modified by cyclotriphosphazene is easy to disperse uniformly in apolyolefin matrix, wherein the interface bonding force between the coal gangue powder and the polyolefin matrix can be enhanced, so that the mechanical properties of the composite material are remarkably improved, and the composite material has a relatively good flame-retardant property. The novel composite material has the advantages of high coal gangue filling amount, low polyolefin consumption, no need of calcining the coal gangue powder, energy saving and low cost. The composite material has the advantages of excellent comprehensive mechanical properties, obvious flame retardancy, simplepreparation technique, no use of strong acids or alkalis in the preparation process, and no environmental pollution.

A preparing method of flurbiprofen is disclosed and belongs to the technical field of medicine preparation. A Suzuki coupling reaction is adopted. 2-(3-fluoro-4-chloro-phenyl)-propionic acid and a phenylboronic acid reagent are subjected to the palladium catalyzed Suzuki coupling reaction in an organic solvent under existence of an alkali to obtain the flurbiprofen, wherein the mole ratio of the 2-(3-fluoro-4-chloro-phenyl)-propionic acid to the phenylboronic acid reagent is 1:(0.9-1.1). The method is simple. The prepared flurbiprofen is high in yield and high in purity.

The invention relates to the technical field of organic luminescent materials, and in particular, relates to an organic light-emitting compound and a preparation method thereof and an organic electroluminescent device. The structural formula of the compound is shown in the specification; the compound has good thermal stability and a simple preparation route, and the organic electroluminescent device containing the compound has excellent luminous efficiency and long service life, is an organic electroluminescent compound with excellent performance, and has simplicity, maturity and repeatabilityin preparation.

The invention discloses a hierarchical porous carbon block material for formaldehyde purification and a preparation method and application thereof. The preparation method includes: drying a wood material with a quasi-ordered tunnel shaped biological biomorphic structure, directly carbonizing and activating in a certain gas atmosphere to obtain the hierarchical porous carbon block material high inspecific surface area. The process is simple, the obtained carbon block material has a unique hierarchical distribution porous structure and is in a blocky structure macroscopically, great in mechanical performance and flexible and convenient to cut, BET specific surface area is 726-1107m<2>/g, Langmuir specific surface area reaches 974-1591m<2>/g, and pore volume is 0.36-1.07cm<3>/g. Processes ofefficient adsorption, separation and the like can be completed by placing the carbon block material in a space contaminated by formaldehyde gas for a period of time and then taking away.

The invention discloses a method for preparing positive electrolyte of an all-vanadium redox flow battery through a chemical synthesis method. Through the method, a high-valence oxide which is insoluble in water is reduced to a low-valence vanadium ion which is easily soluble in water through redox reaction. The adopted chemical synthesis method mainly comprises the following steps of (1) preparing with vanadium ores; (2) preparing by reducing V2O5 through sulfur dioxide; (3) preparing by reducing V2O5 through elemental sulfur; and (4) preparing by reaction of oxides of different valences of vanadium. The activated V2O5 is diluted and reduced to pure blue VOSO4 solution, and the pure blue VOSO4 solution is just dehydrated and dried under the temperature condition of 100 DEG C. The electrolyte prepared by the method has good charge and discharge performance, and is an ideal vanadium battery electrode active material.

The invention discloses self-repairing polyurethane based on boroxine and a preparation method of the self-repairing polyurethane, belonging to the technical field of material science. The preparation method comprises the following steps: firstly, preparing an isocyanate-terminated polyurethane prepolymer, and then subjecting the isocyanate-terminated polyurethane prepolymer to reacting with boroxine having different terminal groups under different conditions to prepare the self-repairing polyurethane based on the boroxine. According to the invention, the boroxine with a three-foot structure and dynamic reversible performance is introduced into a polyurethane chain as a cross-linking agent, so the cross-linking density of polyurethane is improved, and the self-repairing polyurethane with more excellent mechanical performance is prepared; and through combination with the advantages of designability of polyurethane and adjustability of soft and hard segments of polyurethane, the preparation route of the method is simple, the complexity of the system in design and processing is reduced, and an effective way is expected to be provided for solving contradiction between high mechanical strength and good repairing performance of a polyurethane material.

The invention discloses a preparation method and an intermediate of gossypol and derivatives thereof. The preparation method comprises the following steps: in a solvent, under the action of alkali, apalladium catalyst and a chiral ligand, carrying out a coupling reaction shown in the specification on a compound 6 and a double-boron reagent to obtain a compound (+)-7, wherein the structure of thechiral ligand is shown as a formula L1. The preparation method is simple, easy to operate and suitable for industrial production.