100results about How to "Informative and accurate data" patented technology

The invention relates to a method for quickly preparing carbon quantum dots emitting blue light and carbon quantum dots emitting green light. According to the method, an environmentally-friendly hydrothermal synthesis method is adopted, L-ascorbic acid and ethidene diamine serve as raw materials, deionized water serves as solvent, the carbon quantum dots emitting the blue light and the carbon quantum dots emitting the green light are formed by quick synthesis of the L-ascorbic acid at different temperatures, the purity of products reaches 99%, the water solubility reaches 99.5%, the particle diameter of the carbon quantum dots emitting the blue light is smaller than or equal to 6 nm, the particle diameter of the carbon quantum dots emitting the green light is smaller than or equal to 6.2 nm, and the carbon quantum dots are good in dispersity, good in water solubility, good in fluorescence, capable of being applied to fluorescence probes, biomedical imaging, printing inks and photovoltaic devices; the preparation method is advanced in process, precise and detailed in data, high in preparation speed, good in product purity and stable in light-emitting performance and is a very ideal method for quickly preparing the carbon quantum dots emitting the blue light and the carbon quantum dots emitting the green light.

The invention belongs to the technical field of nonferrous metal alloy preparation, and in particular, relates to a preparation method of a reinforced AlCoCrFeNi2 high-entropy alloy base neutron absorbing material. The preparation method comprises the following steps: the ball milling and the mixing are performed on Al powder, Co powder, Cr powder, Fe powder and Ni powder according to a mole ratioof 1: 1: 1: 1: 2 to prepare AlCoCrFeNi2 high-entropy alloy powder; the ball milling and the mixing are performed on the AlCoCrFeNi2 high-entropy alloy powder, the Al powder and B4C powder according to a volume ratio of 6: 3: 1; a plasma discharge sintering technology is adopted to sinter under the conditions of vacuum, resistance heating and pressurization to prepare the reinforced AlCoCrFeNi2 high-entropy alloy base neutron absorbing material; B4C particles are uniformly distributed in a basal body; through adding of the Al powder, the plastic deformation capacity of the material can be further improved; the oxidation of the material can be effectively prevented in the vacuum environment; through plasma discharge quick sintering, the growth of grains in the material can be prevented; local high temperature is generated by particle tip discharge to improve the interface connecting strength of the material; the preparation method is advanced in process and precise and accurate in data;the compactness of the AlCoCrFeNi2 high-entropy alloy base neutron absorbing material can reach 98%; the hardness can reach HV0.5=563.3; and the tensile strength can reach 340 MPa.

The invention relates to a preparation method of a magnesium base composite doped with SiC grains. Due to the fact that the mechanical property of a magnesium alloy is poor, the ceramic SiC grains are doped in a smelting process of the magnesium alloy to prepare a reinforced magnesium alloy block material through smelting, doping, gas shielding, casting, and extruding; the strength and the hardness of a magnesium alloy ingot are improved largely; the Vickers hardness of the composite reaches 70.1, and is increased by 30% compared with a common magnesium alloy; the tensile strength reaches 183 MPa, and is increased by 103.3% compared with the common magnesium alloy; the preparation method is advanced in process, detailed and accurate in data, and is an ideal method of preparing the reinforced magnesium base composite.

The invention relates to a preparation method of a tough polylactic acid composite fiber. Hydroxylated multiwalled carbon nanotubes are added in polylactic acid fibers and are subjected to surface modification, polymerization grafting, masterbatch preparation and melt spinning, so as to prepare the tough polylactic acid composite fiber for solving the problems of low intensity and poor toughness of the polylactic acid fiber. The preparation method has advanced technology, the data is accurate and detailed, the prepared tough polylactic acid composite fiber can reach 4.98cN/dtex in breaking strength, is 37.3% in elongation at break and has breaking strength improved by 32% and elongation at break improved by 22%, the application range of the polylactic acid composite fiber is expanded, and the method is ideal for preparing the tough polylactic acid composite fiber.

The invention relates to a method for preparing a boron, lead and aluminum composite board preventing X rays, gamma rays and neutron irradiation to overcome the defect that a nuclear radiation and ray shielding material is single in shielding property. According to the method, aluminum powder, boron carbide powder and lead powder serve as raw materials, ball grinding, powder processing, material mixing, microwave heating, vacuum hot pressing blank stamping, and heating rolling forming are carried out, and then the boron, lead and aluminum composite board is prepared. The preparing method is advanced in technology, data are accurate and detailed, the prepared boron, lead and aluminum composite board has a good ray and neutron irradiation shielding effect, the X-ray shielding rate is larger than or equal to 95 percent, the gamma-ray shielding rate is larger than or equal to 40 percent, the neutron absorptivity is larger than or equal to 90 percent, boron carbide is evenly distributed, particles and a base body are combined tightly, high mechanical strength is achieved, the surface microhardness reaches 186.3 HV, the bending angle is larger than or equal to 15 degrees, the tensile strength is 305 MPa, the elongation after fracture is larger than or equal to 6 percent, the mechanical property and the shielding property of the boron, lead and aluminum composite board are improved, and the boron, lead and aluminum composite board can be used for single irradiation protection and can also be used for various types of radiation protection.

The invention relates to a preparation method of white fluorescent powder containing europium terbium beryllium polymer. The method comprises the steps of: firstly, preparing red europium complex, green beryllium complex and blue beryllium complex; and carrying out polymerization reaction in a four-hole boiling flask, and washing, leaching, drying and grinding to prepare the white fluorescent powder containing the europium terbium beryllium polymer. According to the preparation method, the process is advanced, the data is accurate, the light emitting purity of the white fluorescent powder is good, and the luminous efficiency is high; chromaticity coordinates under 365nm of ultraviolet light excitation are that x is 0.3218 and y is 0.3332, and the preparation method is an ideal method for preparing the white fluorescent powder containing the europium terbium beryllium polymer.

The invention relates to a method for preparing a core-shell type flame retardant. According to the method, the stability of thermal performance of a carbon microsphere is combined aiming at the defects of a flame-retardant property of magnesium hydroxide, and the carbon microsphere is coated by the magnesium hydroxide so as to form a core-shell structure. The method comprises the following steps: preparing a carbon microsphere in a high-pressure heating furnace reaction kettle, preparing an aqueous solution of a silane coupling agent, magnesium hydroxide slurry and a carbon microsphere and ethanol mixed solution, preparing a core-shell type magnesium hydroxide coated carbon microsphere in a water bath heating, stirring and water circulation condensation state in a three-necked flask, washing, filtering, performing vacuum drying and grinding to prepare a nanoscale final product. The preparation method is advanced in process and detailed and accurate in data, the product refers to grey powder particles, the diameter of the particles is less than or equal to 700 nm, the thickness of the coating layer is 15-50 nm, the purity reaches up to 98 percent, and the core-shell type flame retardant is good in flame-retardant effect and high in matching property and can be applied to serving as a flame-retardant material in textile manufacturing, printing and dyeing and high-additional value industries.

The invention relates to a preparation method of a carbon fiber strengthened aluminum-base-layer-shaped composite board, and aims to solve the condition that the intensities of aluminum and aluminum alloy are low and the tenacity is poor. According to the preparation method, aluminum powder and carbon fiber cloth are heated, fused and combined, vibrated and pressurized so as to manufacture an aluminum base-layer-shaped composite board, the carbon fiber strengthened aluminum base-layer-shaped composite board is manufactured on a heating and vibrating press machine in a heating, pressurizing and vibrating process, so that a nine-layer structure is formed, an aluminum solution is utilized for wetting the carbon fibers under low temperature, pressure and vibration actions, and a fragility compound can not be formed, so that the organization structure is compact, the tensile strength achieves 144MPa, the elongation achieves 21.2%, the process is advanced, the data is full and accurate, the process flow path is short, and the preparation method is an ideal method for preparing the carbon fiber strengthened aluminum base-layer-shaped composite board.

The invention relates to a method for treating oxygen-bearing coalbed methane by using coal gangue. According to the method, the oxygen-bearing coalbed methane is used as raw material, and the coal gangue is used as a catalytic deoxidizing agent, and thermo-chemical treatment is conducted in a microwave oven; deoxidized and desulfurized methane liquefied gas, liquefied carbon dioxide and liquefied nitrogen are prepared through desulfurization purification, pressure swing adsorption separation and compression under the action of the coal gangue and the oxygen-bearing coalbed methane, and meanwhile, an aluminosilicate mixture is obtained through decarburization of the coal gangue; and the liquefied methane and tail gas can be used as burning energy, the liquefied carbon dioxide can be used as chemical material, the liquefied nitrogen is used as inert protective gas, and the aluminosilicate mixture can be used as the chemical material. The treating method has the advantages that process is advanced, data is full and accurate, the waste coal gangue is used, the oxygen-bearing coalbed methane is treated, coal gangue pollution and coalbed methane pollution are treated, new products are obtained, and a double-advantage of the process is achieved.

The invention relates to a remote monitoring device for water flow, which is mainly controlled by a main control computer. The remote monitoring device is provided with a plurality of terminal cases for sub-control; a GPRS wireless communication transmitter transmits water flow information to realize multi-terminal and long-distance monitoring for the water flow; a dual-shielding control circuit, an ultrasonic flow meter, a water flow sensor, a counting card socket, a sound control alarm, a liquid crystal display, an operating keyboard, an AC/DC transformer and the like are arranged on the terminal case; and the main control computer is controlled by a computer program to calculate and process. The device has the advantages of advanced and reasonable design, compact structure, safety, stability, reliability and accurate and detailed data, realizes remote monitoring and control on the flow of scattered water resources, fills the blank of the technology, is a quite ideal remote monitoring device for the water flow, and also can be used for remote monitoring and control on sites of petroleum, chemical industry, heating, food and the like.

The invention relates to a method for rapidly preparing nanocrystalline zinc-iron hydrotalcite. The method comprises the following steps of: performing solution preparation, heating, stirring, water circulation condensing, nitrogen protection and a combination reaction under oxygen oxidation with a uniform precipitation method by taking zinc sulfate and ferrous sulfate as raw materials, taking hexamethylene tetramine as a precipitating agent, taking deionized water as a solvent and a washing agent, taking absolute ethanol as a washing agent, taking nitrogen as protection gas and taking oxygen as an oxidant; and washing, performing suction filtration, drying in vacuum, grinding and screening to obtain nanocrystalline zinc-iron hydrotalcite. The preparation method has the advantages of advanced and precise process, high preparation speed, detailed and accurate data and high product purity, which can be up to 99 percent; the product zinc-iron hydrotalcite is an irregular hexagonal flaky crystal which is less than or equal to 80 nanometers in diameter, and can be matched with a plurality of chemical substances; and the method is very ideal method for rapidly preparing nanocrystalline zinc-iron hydrotalcite.

The invention relates to a preparation method of a multistage pore passage composite molecular sieve adsorbent for overcoming a phenomenon that volatile organic compounds pollute environment. Silicon sol, tetraethoxysilane, aluminum sulfate, sodium hydroxide, hydrochloric acid, hexamethonium bromide, hexadecyl trimethyl ammonium bromide and deionized water are used as raw materials, and the preparation method comprises the steps of synthesizing a ten-ring microporous molecular sieve firstly, then synthesizing a micropore-mesoporous molecular sieve, and finally performing procedures of heating in a thermostat, crystallization reaction in a reaction kettle, quenching, vacuum drying, and high-temperature roasting, thereby obtaining the multistage pore passage composite molecular sieve adsorbent. The preparation method has advanced process and accurate and full data, and the prepared multistage pore passage composite molecular sieve adsorbent has the grain diameter of less than or equal to 1.5 microns, the pore passage diameter of less than and equal to 2.83nm and the purity up to 96%; the multistage pore passage composite molecular sieve adsorbent can be directly used as a volatile organic compound adsorbent, or can be matched with multiple chemical substances to serve as an adsorbing material; the preparation method of the multistage pore passage composite molecular sieve adsorbents is ideal.

The invention relates to a preparation method of a titanium dioxide/cuprous oxide coaxial heterostructure. On the basis of photocatalytic efficiency of titanium dioxide and conductivity of cuprous oxide, an electrochemical electrolytic oxidation process is utilized to firstly prepare a titanium dioxide nanotube array substrate and then prepare the titanium dioxide/cuprous oxide coaxial heterostructure product. The preparation method has the advantages of advanced technique and accurate and complete data. The product is yellow and flaky, the cross section is rectangular, and the titanium dioxide and cuprous oxide are combined through chemical bond. The product has obvious absorption action on ultraviolet light and visible light, and the current density under the irradiation of visible light is 1.0-1.6 mA/cm<2>. The titanium dioxide/cuprous oxide coaxial heterostructure can be used in solar power generation and photovoltaic products; and the preparation method is a very ideal method for preparing the titanium dioxide/cuprous oxide coaxial heterostructure.

The invention relates to a boron carbide particle surface nickel plating method. The surface nickel plating method is used for solving the cases of low fracture toughness, high sintering hardness, poor oxidation resistance and poor composite wettability to the interface between the boron carbide particles and metal of the boron carbide particles. By carrying out alkali washing, pickling, roughening, sensitizing, activating and surface nickel-plating on boron carbide particles, the surfaces of the boron carbide particles are uniformly plated with a nickel coating, the diameters of the nickel-plated boron carbide particles are less than or equal to 50mu m and the thickness of the nickel coating on the surfaces of the boron carbide particles is less than or equal to 30nm. After the nickel plating, the wettability and matching performance of the surfaces of the boron carbide particles are improved, the nickel plating method is an advanced boron carbide particle nickel plating method, the data are accurate and informative and the boron carbide particle surface coating is uniform in thickness and firm.

The present invention relates to a purification treatment method for nickel plating wastewater. According to the method, a microbiological method is adopted, nickel plating wastewater is simulated and prepared, microbial bacteria stenotrophomonas maltophilia is cultured, treatments of enrichment and purification are performed, then the bacteria is mixed with the nickel plating wastewater, an oscillation purification treatment is performed on heavy metals in the nickel plating wastewater, wherein the treatment purification efficiency is 98.5%, the reclaimed water standard in the national standard is reached, and the purified water can be used for washing and irrigation farmlands. The purification treatment method of the present invention has the following advantages that: the process is advanced and quick; the process is short; the data is abundant and accurate; the environmental pollution is not generated; the treatment purification efficiency on the nickel plating wastewater is high;the method is suitable for the industrial treatment, and is an ideal nickel plating wastewater purification treatment method; other wastewater containing heavy metals can further be treated and purified by the method of the present invention.

The invention relates to an equal-channel angular pressing method of iron-covered magnesium. The method aims to solve the problems that magnesium is low in strength and poor in plastic forming performance. An iron-covered magnesium combination is manufactured by the adoption of a copper mould suction casting method. Equal-channel angular pressing is carried out at the room temperature of 25 DEG C, annealing is carried out at a moderate temperature, and magnesium grain structures are refined. The manufacturing process is advanced in method, data are detailed and accurate, the iron-covered magnesium combination is organically combined, magnesium grains are refined to 200nm, compactness is good, the application range of magnesium is widened, and the method is an ideal method for room-temperature severe plastic deformation of the magnesium.

The invention relates to a method for preparing ordered needle coke through using coal tar pitch. The method which aims at the disadvantages of the chemical and physical characteristics and the mechanical performances of coal tar pitch comprises the steps of removal of quinoline insoluble substances from coal tar pitch, distillation, coal tar pitch microsphere extraction, reduced pressure distillation, high temperature charring and high temperature calcining to prepare the ordered needle coke having a purity of 99%. The method has the advantages of advanced technology, full and accurate data, high product purity and good product quality, can be used in a plurality of industrial fields, and is a very ideal method for preparing ordered needle coke through using the coal tar pitch.

The invention relates to a preparation method of a high-strength and high-conductivity aluminum-magnesium-silicon-calcium alloy. Aiming at the disadvantages that an aluminum-magnesium-silicon alloy has low strength, poor conductivity and unstable mechanical properties, a calcium element is doped in the aluminum-magnesium-silicon alloy, and vacuum melting, argon gas bottom blowing protection and pouring and ingot formation are adopted to prepare an alloy with high-strength and high-conductivity characteristics through equal-channel corner extrusion and ageing treatment; a preparation technologyprovided by the invention has an advanced method and detailed and accurate data; the prepared alloy has the yield strength of 370MPa, the tensile strength of 370MPa, the elongation percentage of 12 percent and the electric conductivity of 57.2 percent IACS; compared with the prior art, the tensile strength is improved by 17.5 percent and the electric conductivity is improved by 8.9 percent; the mechanical properties and the conductivity of the aluminum-magnesium-silicon alloy are remarkably improved and an application range is expanded; the preparation method is an advanced preparation methodfor preparing the high-strength and high-conductivity aluminum-magnesium-silicon-calcium alloy.