80results about How to "With large-scale production" patented technology

The invention discloses a preparation method for a graphene / aramid fibre 1414 nano-fibre composite membrane, comprising the following steps of: performing nano-fibrillation on aramid fibre 1414 yarns via the solution system of dimethyl sulfoxide and potassium hydroxide; slowly adding dimethyl sulfoxide solution for oxidizing graphene, sequentially centrifuging, dispersing, performing suction filtration and film formation, and thus obtaining oxidized graphene / aramid fibre 1414 nano-fibre composite membrane; and reducing via hydroiodic acid, washing, drying, and thus obtaining the graphene / aramid fibre 1414 nano-fibre composite membrane. The tensile strength and the Young modulus of the graphene / aramid fibre 1414 nano-fibre composite membrane obtained by the preparation method disclosed by the invention can achieve 209.4 Mpa and 29.5 GPa respectively, thus showing excellent mechanical property; simultaneously, the conductivity of the graphene / aramid fibre 1414 nano-fibre composite membrane can achieve 175 S / m, thus being excellent in conductance; and a thermogravimetric analysis shows that the graphene / aramid fibre 1414 nano-fibre composite membrane is good in heat stability.

The invention discloses a superconducting quantum computing chip integrated package structure and method. The integrated package structure comprises a superconducting quantum computing chip, and a flip chip packaged together with the superconducting quantum computing chip. An insulation substrate of the superconducting quantum computing chip has a plurality of mutually-coupled superconducting quantum bits and first communication lines connected with the superconducting quantum bits and used for carrying out control and readout on the superconducting quantum bits. The flip chip has a pluralityof superconductive resonant cavities. The superconductive resonant cavities are corresponding to the superconducting quantum bits and the first communication lines, and are used for carrying out magnetic shielding on each superconducting quantum bit and each first communication line. Magnetic shielding can be carried out on each superconducting quantum bit and each first communication line, so that crosstalk between input and output leads and influence on quantum bits are reduced, de-coherence time of the quantum bits is improved, and requirement for large-scale quantum computation is reached.

The invention discloses a preparation method of a highly dispersed nanocatalyst. The method comprises the following steps: (1) respectively preparing a metal salt solution and a precipitant solution,continuously dropwise adding the metal salt solution into the precipitant solution under continuous stirring, continuing the stirring, performing a primary low-temperature hydrothermal reaction, filtering, washing and drying the obtained product, performing a secondary low-temperature hydrothermal reaction, and performing filtration and vacuum drying on the obtained reaction product to obtain a metal oxide carrier rich in oxygen vacancies; and (2) loading a noble metal on the metal oxide carrier by adopting an impregnation technology, and performing temperature-programmed reduction in a hydrogen atmosphere to obtain the highly dispersed nanocatalyst. The method has the advantages of low cost, rich and easily available raw materials, mild preparation conditions and strong universality; andthe highly dispersed nanocatalyst prepared by using the oxygen vacancy supported noble metal has the advantages of good catalytic activity, good product selectivity and great potential industrial catalytic application potential.

The invention discloses a method for preparing a titanium product through titanium hydride powder. The method comprises the following steps that firstly, blank manufacturing is carried out, and the titanium hydride powder is manufactured into a blank material through mold pressing; secondly, dehydrogenation is carried out, the blank material is heated under the protective atmosphere, the temperature rise rate is maintained in 50-200 DEG C / min till the temperature of the blank material is increased to 900-1,200 DEG C, and insulating is carried out for 5-20 minutes; thirdly, molding is carried out, the heated blank material is moved in an extrusion device, extrusion is carried out under a certain pressure and extrusion ratio, and the blank material is molded and solidified to obtain the titanium product through an extrusion mold with a specific inner cavity shape; and fourthly, cooling is carried out, and after extrusion is finished, the titanium product is cooled to the room temperature at the speed of 10-100 DEG C / min and then taken out. The method has the beneficial effects that the cost of raw materials is low, the dehydrogenation speed is high, and the production efficiency and product purity are high; and the technological process is simple, and the large-scale production potential is achieved.

The invention belongs to the technical field of ceramic pigments, and concretely relates to a compound type ultrafine yellow ceramic pigment and a preparation method thereof. The preparation method concretely comprises 1) dissolving nickel titanate in water to obtain a solution A; 2) uniformly mixing butyl titanate and anhydrous ethanol being 2-3 times by volume of butyl titanate, so as to obtain a solution B; 3) adding the solution B into the solution A under the stirring condition, stirring at room temperature for 5 h or more, and then standing for ageing for 24-48 h, so as to obtain an opaque gel; and 4) drying and grinding the opaque gel obtained in the step 3) to obtain a loosen precursor powder, then transferring into a muffle furnace, and roasting at 400-500 DEG C for 4-6 h, so as to obtain the yellow ceramic pigment. The compound type ultrafine yellow ceramic pigment obtained through the preparation method combines excellent performances of NiTiO3 and TiO2, and possesses advantages of bright color, no color variation at high temperature, and the like.

A method for making a strip shaped graphene layer includes the following steps. First, a graphene film is located on a surface of a substrate is provided. Second, a carbon nanotube structure is disposed on the graphene film. The carbon nanotube structure includes a plurality of carbon nanotube segments and a plurality of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the graphene film exposed by the strip-shaped gaps is removed by a reactive ion etching method.

The invention discloses a method for synthetizing chiral cyclic alkyl amino acid by amino transferase. The commercialized material ketonic acid or corresponding soluble ketonic acid salt compound in the market is selected as an initial material; the initial material is dissolved into phosphate buffer, and added to an amino supply body; pyridoxal phosphate (PLP) and amino transferase main enzyme are added to a system containing the amino supply body and main material ketonic acid or corresponding soluble ketonic acid salt compound to react under constant temperature, and obtaining a product with a high ee value, wherein n is equal to 1, 2, 3, 4, 5, or obtaining a product wherein n is equal to 0 and 1. The method is stable in technological condition, simple to operate, high in yield, low in cost, and suitable for large-scale production, and beneficial for environmental protection; and a novel train of thought and a method are provided for the preparation of chiral cyclic alkyl amino acid compound.

The invention discloses a simple and universal method for preparation of a superhydrophobic material. The method includes: firstly placing the matrix of a superhydrophobic material under the action of ozone and ultraviolet lamp irradiation for 0.2-5h, or putting the matrix of the superhydrophobic material in a dopamine aqueous solution to react for 3-24h to hydroxylate the matrix surface; then placing the matrix in an organic solvent solution of chlorosilane with a volume fraction of 0.1%-2% and performing stirring for 0.1-3h; and finally putting the matrix in an oven to perform drying at 20-120DEG C, thus obtaining the superhydrophobic material. According to the invention, the solution stirring method with the characteristics of environmental friendliness, easy large scale production, low cost, wide range of application and simple preparation process is employed to modify the raw material surface and prepare the material with super-hydrophobic performance, and has the advantages of no need for any special and expensive instrument and equipment and accurate test conditions.

The invention provides an in-situ preparation method for capsules with amino resin as wall forming monomer. The method comprises the following steps that firstly, the alkanol etherified amino resin with different carbon chain lengths and an oil soluble substance are mixed and stirred fully to be dissolved, and a uniform oil phase is obtained; secondly, the prepared uniform oil phase is added into a water solution containing an emulsifier, the mixture is stirred fully, sheared and emulsified, and emulsion droplets with the particle size ranging from 1 micron to 100 microns are obtained; thirdly, a water-soluble polymer solution and the emulsion are mixed and jetted, and a composite ball containing uniform dispersion emulsion is prepared; fourthly, the mixed solution of the composite ball and a salt solution is slowly heated, the pH value is adjusted, the emulsion droplets of the etherified amino resin inside the composite ball are subjected to a polymerization curing reaction, and a capsule wall of a microcapsule for wrapping the oil phase is formed; fifthly, after filtering and washing, the composite ball containing the self-assembly microcapsule is obtained, and the particle size of composite balls is uniform. The synthetic process is simple, energy consumption is low, the requirements for equipment is low, reaction conditions and the particle size are easy to control, and the method has a prospect of mass production. The simple encapsulation method has very wide application prospects in the fields of pesticide, cosmetics and intelligent heat accumulation thermoregulation products.

The invention belongs to the technical field of composite material, and relates to a polyformaldehyde composition and a preparation method thereof. The polyformaldehyde composition consists of the following materials by weight: 100 parts of polyformaldehyde, 5-20 parts of green silicon carbide, 0.1-0.2 part of white oil, 0.2-0.4 part of calcium stearate, 0.3-0.6 part of a main antioxidant, 0.3-0.6 part of an auxiliary antioxidant, 0.5-1part of a formaldehyde absorbent, 0.2-0.4 part of a formic acid absorbent and 0.1-0.3 part of a nucleating agent. Compared with the prior art, the polyformaldehyde composition prepared by the invention has the advantages that abrasion index is low, and the hardness is increased significantly.

A method for making a strip shaped graphene layer includes the steps of: first, a graphene film is located on a surface of a substrate is provided. Second, a drawn carbon nanotube film composite is disposed on the graphene film. The drawn carbon nanotube film composite includes a polymer material and a drawn carbon nanotube film structure disposed in the polymer material. The drawn carbon nanotube film structure includes a plurality of carbon nanotube segments and a plurality of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the polymer material is partly removed to expose the plurality of carbon nanotube segments. Forth, the plurality of carbon nanotube segments and the graphene film covered by the plurality of carbon nanotube segments is etched. Fifth, the remained polymer material is removed to obtain the strip shaped graphene layer.

The application discloses yttrium lithium fluoride-doped scintillating microcrystal and a preparation method thereof. The yttrium lithium fluoride-doped scintillating microcrystal has a chemical formula shown as formula I: LiM10.02M2xY0.98-xF4, wherein M1 and M2 are selected from rare-earth elements, and 0.01<x<0.06. The yttrium lithium fluoride-doped scintillating microcrystal is 8-15 mu m in size that is of micrometer level, has good transparency and good size uniformity, has good scintillating property, has the potential of large-scale production, and has the potential application value inthe field of high-energy ray detection.

The invention discloses an onion sauce can, and belongs to the field of canned food processing. An onion sauce comprises the following raw materials in parts by weight: 1,000 parts of shredded onion, 350-450 parts of fermented soybean sauce, 350-450 parts of edible oil, 70-90 parts of soybean sauce, 40-60 parts of white granulated sugar, 10-30 parts of seasoning, 0.3-0.5 part of potassium sorbate, 0.1-0.3 part of acesulfame, 0.1-0.2 part ethyl malt flour and 0.6-1 part of disodium nucleotide. The onion sauce can has the characteristics of being safe, healthful, good in taste, long in quality guarantee period and the like, and can be put into large-scale production; the processing method of the onion sauce can is capable of reducing the damage to onion nutrient substances to the maximal extent; in addition, the whole production process is rapid and efficient; and the entire assembly line work is facilitated.

A method for making a strip shaped graphene layer includes the following steps. First, a carbon nanotube structure on a surface of a metal substrate is provided. The carbon nanotube structure includes at least one drawn carbon nanotube film. The at least one drawn carbon nanotube film includes a number of carbon nanotube segments, each of the number of carbon nanotube segments being substantially parallel to each other and separated from each other by a strip-shaped gap. Second, carbon ions are implanted into the metal substrate through the strip-shaped gaps. Third, the metal substrate is annealed to obtain the strip shaped graphene layer.

The invention discloses a preparation method of a graphene / molybdenum disulfide / cadmium sulfide composite sensing material. The preparation method includes: preparing graphene oxide; adopting a hydrothermal process to synthesize a graphene oxide-molybdenum disulfide composite material; adopting a hydrothermal process to synthesize the graphene-molybdenum disulfide-cadmium sulfide composite material. Compared with the prior art, the preparation method has the advantages that sensing performance of the graphene-molybdenum disulfide-cadmium sulfide composite material prepared by the method is excellent, and responding time and restoring time to low-concentration NO2 gas are less than 30s. The composite sensing material obtained by applying the hydrothermal process is orderly in structure andhigh in thermostability; a simple method is applied to effectively reduce graphene oxide, and novel graphene / molybdenum disulfide / cadmium sulfide composite heterojunctions are formed. The method is environment-friendly, convenient for operation and low in cost. Therefore, the preparation method has the advantages that conventional methods do not have and has potential in large-scale production.

The invention discloses an OMS-2 type composite material with a mixed crystal phase as well as a preparation method and application of the OMS-2 type composite material. The preparation method comprises the following steps: enabling a uniformly mixed reaction system, which contains potassium permanganate, a divalent manganese salt, an additive and nitric acid, to react for 5-24h at 25-100 DEG C toobtain the OMS-2 type composite material with the mixed crystal phase; wherein the additive comprises any one kind or more than two kinds of combinations of tungstic acid, sodium phosphotungstate, sodium tungstate, sodium metatungstate, sodium phosphate, potassium phosphate, monopotassium phosphate and disodium hydrogen phosphate. The operation method of the OMS-2 type composite material is simple, high in yield and good in repeatability, the obtained OMS-2 type composite material has a two-phase crystal phase of Mn2O3.H2O / OMS-2 as well as substantially improved specific surface area and oxidative activity, and the OMS-2 type composite material has excellent catalytic oxidation activity in the selective catalytic oxidation application of organic compounds such as benzyl alcohol compounds,amine compounds, saturated nitrogen heterocycles, thiols and thioethers.

The invention relates to a full-aromatic phenol-amine copolymer containing multifunctional groups and a preparation method and application thereof. The method comprises the steps that a phenylenediamine monomer solution reacts with a benzenediol monomer solution under the action of an oxidizing agent solution to obtain the full-aromatic phenol-amine copolymer containing the multifunctional groups, and the copolymer is used for adsorbing antibiotics in water. Compared with the prior art, copolymerization is performed on the benzenediol monomers and the phenylenediamine monomers to obtain the aromatic nucleus copolymer which contains a large number of amino groups, imine groups and hydroxyl groups and is rich in pi electrons, the copolymer can have an adsorption reaction with most organic substances, then the copolymer can efficiently remove the antibiotics such as ciprofloxacin in the water, and the ciprofloxacin removing rate can be more than 99 percent; the prepared full-aromatic phenol-amine copolymer containing the multifunctional groups has the advantages of being simple, convenient and efficient, low in cost and higher in yield and has the scale production potential, and the highest yield can reach 95.6 percent.

The invention provides an organic photochromic material based on diarylethene, and a preparation method and an application thereof in ion regulation and molecular recognition. A structural formula ofthe material is shown as a general formula I, wherein X is selected from a halogen atom (Cl, Br, I), H, a C1-C12 alkyl group, or a phenyl group. The preparation method of the material includes the following steps: reacting a diarylethene-based monoaldehyde compound having the photochromic performance with 3-hydroxy-2-naphthoic acid hydrazide at the temperature of 20-120 DEG C for about 1-24 hours,forming precipitation in a solution and after the reaction is stopped, and subjecting the precipitate to filtration, washing, and purification to obtain a novel Schiff base photochromic compound based on the diarylethene. The ion regulation switching spectral properties and ion recognition properties of the organic photochromic material of the invention have very important functions in the fieldof photoelectric information, such as preparation of multi-addressing photoelectric molecular switches, molecular conducting wire components, photochromic light-emitting devices, and the like.

Belonging to the technical field of photocatalysis, the invention in particular relates to a zinc oxide / carbon composite photocatalyst and a preparation method thereof. The preparation method includesthe steps of: S1, adding zinc acetate, starch and polyvinylpyrrolidone into water, and performing stirring to obtain a mixed solution; S2, freezing the mixed solution and then conducting vacuum freeze drying to obtain an intermediate product; and S3, carrying out pre-oxidation treatment and carbonization treatment on the intermediate product in order to obtain the zinc oxide / carbon composite photocatalyst. According to the invention, zinc oxide is anchored on a porous carbon material, the high specific surface area, high porosity and good conductivity of a porous carbon material are utilizedto increase the contact area of a photocatalyst and dye, and accelerate the photoelectron-hole separation and transmission, thereby improving the photocatalytic efficiency; moreover, the photocatalystcan be simply extracted from an aqueous solution directly for recovery, and then can be used repeatedly. Moreover, in the carbonization process, carbon is doped with zinc oxide to expand the spectralresponse of zinc oxide and make zinc oxide absorb visible light.

A preparing method of spicy fish paste having different pungency degrees is disclosed. The method includes a) weighing 10 jin of bighead carps, slicing the bighead carps, cleaning the slices and keeping the slices for later use, b) preparing plant pickling auxiliary materials, and pickling the bighead carps for 8 h or above, c) taking the fish out when the fish is drained to a degree that the water content of is 40%, and keeping the fish for subsequent stir-frying, d) mixing 4 jin of sesame oil, 4 jin of red oil and 4 jin of scallion oil to obtain mixed oil, heating the oil to 80 DGE C or above, adding the fish into a pan and stir-drying the fish, e) when the fish is light yellow, adding stir-frying auxiliary materials, and stir-frying the mixture continuously until the fish is golden yellow, f) performing low-temperature refrigeration and sterilization, g) performing deoxygenation and h) subpacking and sealing a product. The method is suitable for industrial, standardized and large-scale production.

The invention discloses a method for preparing a tetrapod-like zinc oxide nanorod. The method comprises the following steps: (1) putting a small tube filled with zinc foil into a closed big tube, introducing inert gas to evacuate the air in the big tube, then, heating the big tube, and continuing to introduce the inert gas, and simultaneously, introducing an oxygen elementary substance into the big tube, wherein the oxygen elementary substance needs to be dried by an inert drying solution before being introduced; and (2) heating up to 400-900 DEG C, stopping heating, stopping introduction of the oxygen elementary substance, and stopping introduction of the inert gas when the big tube is cooled to be less than 200 DEG C, wherein the tail gas generated in the reaction process needs to be dried by the inert drying solution. The method has the advantages of high product yield, high purity, even and steady size and excellent controllability, and has a large-scale production prospect.

The invention discloses a sodium-ion battery negative electrode SnS / C composite material and a preparation method thereof. The preparation method comprises the following steps: dissolving tin sulfide into a medium solution to obtain a solution I; adding an organic carbon source into the solution I and continuously stirring until the organic carbon source is uniformly dispersed, thereby obtaining a solution II; drying the solution II to obtain a solid powder precursor of the SnS / C composite material; roasting the solid powder precursor to obtain the porous SnS / C composite material. The tin sulfide in the composite material prepared by the preparation method has a nano structure with a controllable particle size, and a carbon layer coating the surface of the composite material is loose and porous, and is very beneficial for ion and electron transmission. According to the results, the composite material is used as a sodium-ion battery negative electrode material, has initial specific capacity of 620 mAh g<->1 under current density being 3A g<-1>, and has a specific capacity retention rate higher than 90% after 200 cycles. Compared with a conventional process for preparing stannous sulfide through thermal decomposition of tin sulfide, the preparation method has the advantages of being short in flow, simple in process, relatively low in energy consumption, high in controllable degree, easy for realizing large-scale production, and the like.

The invention discloses a preparation method and application of a high-dispersion metal oxide / carbon nanofiber composite material. The method is characterized by comprising the following steps: dissolving a metal precursor, a dispersing agent and polyacrylonitrile in dimethylformamide, and uniformly mixing to prepare a spinning solution; putting the spinning solution into an electrostatic spinningdevice, and preparing a fiber precursor membrane through electrostatic spinning; performing high-temperature carbonization treatment on the fiber precursor membrane in a nitrogen atmosphere to obtainthe high-dispersion metal oxide / carbon nanofiber composite material, wherein the dispersing agent is any one of malic acid, citric acid, polyvinyl alcohol, polyvinylpyrrolidone and gelatin. The high-dispersion metal oxide / carbon nanofiber composite material prepared by the invention is used as a self-supporting sodium ion battery negative electrode material; the problems that an existing composite material is large in metal oxide particle, low in dispersity, serious in agglomeration or pulverization in the charging and discharging process and the like are solved; and the composite material has the advantages of being simple in preparation process method, low in preparation cost, good in metal oxide dispersity, high in charging and discharging specific capacity, good in cycling stability and the like and has wide application prospects.

The invention discloses a device and method for large-scale continuous preparation of metal nanoparticles, and belongs to the technical field of preparation of metal nanoparticles. The device comprises a micro-flow injection pump, micro-flow channels, a Y-shaped three-way pipe, a heating plate system for reaction temperature control and a temperature control product collection pool. The channels are parallel and straight, the structure is flat and straight, the solvent circulation resistance is small, and the defect that traditional micro-flow channels are blocked is overcome; the applicability to a platform is strong, and various solvents and various metals can react; the reaction conditions are uniform; and segmented heating is achieved, multi-point accurate regulation and control are achieved, and the large-scale production capacity is achieved.

The invention relates to a compound fuel system based on ammonia gas and oxygen, and provides the system with the pure oxygen as a flame accelerator for burning the ammonia gas. Fuel for civil gas systems is replaced by the pure oxygen and the ammonia gas. According to the compound fuel system, mixing of the ammonia gas and the oxygen before a terminal burning furnace and ammonia gas-oxygen early-stage mixing are involved. Ignition modes of ammonia gas-oxygen compound gas comprise the electric spark ignition and the flame propagation, and the flame propagation is preferred. The compound fuel system can achieve zero emission of carbon dioxide of civil gas; the oxygen which has zero cost in raw material and is low in price is adopted for achieving burning of non-combustible matter, and energy is generated.

The invention discloses a method for making different special flavors of fish paste. The method comprises the steps that (a) 10 jin of freshwater fish is taken, sliced and cleaned for usage; (b) Chinese prickly ash, old ginger, celery, green Chinese onion, baijiu, mint, dried tangerine or orange peel, old and dried Chinese onion, Chinese onion heads, soy sauce and ground pepper are mixed to make a plant curing burdening, and fish flesh is salted for 6-10 hours; (c) after moisture in the fish flesh is up to 60% through drying, the fish flesh is taken out for stir-frying; (d) sesame oil, red oil and scallion oil are mixed to make mixed oil, the weight ratio of the sesame oil to the red oil to the scallion oil is 0.8 to 1 to 1.2, the oil is heated to reach the temperature of 80 degrees or above, and the fish flesh is put in a cooker for stir-frying; (e) when the fish flesh is faint yellow, special flavor seasonings and the like are added for stir-drying till the fish flesh is golden yellow; (f) low-temperature storage and sterilization are performed; (g) deoxidation treatment is performed; (h) split charging and sealing are performed. The method has the industrialized, standard and large-scale production capability.

The invention provides an elastic strain sensor and a preparation method thereof. The preparation method comprises the steps of M1 etching an MAX phase material to obtain an MXene material; M2 adding a conductive material into the MXene material to obtain an MXene composite material; M3 modifying a supporting material with the MXene composite material to form a sensitive layer of the strain sensor; M4 coating an elastic electrode supporting layer on a substrate, and patterning the elastic electrode supporting layer; M5 preparing an electrode conducting layer on the elastic electrode supporting layer by using a stripping process; M6 removing the substrate to obtain an elastic electrode; M7 casting an elastic polymer to prepare an elastic substrate, and transferring the elastic electrode to the elastic substrate; and M8 placing the sensitive layer of the strain sensor on the elastic electrode. The sensor provided by the invention adopts a structure of modifying the MXene composite material on the supporting material to measure the strain, so that the sensitivity and the stretching range of the sensor are improved, and the service life of the sensor is prolonged.