30results about How to "Realize large-scale production applications" patented technology

The invention belongs to the technical field of building materials and particularly relates to low-shrinkage, low-viscosity and ultrahigh strength concrete. Based on a single formula proportional dosage, the low-shrinkage, low-viscosity and ultrahigh strength concrete comprises the following components by weight: 250-300kg of cement, 120-180kg of microspheres, 90-120kg of mineral powder, 820-860kg of machine-made sand, 950-1000kg of gravels, 7-11kg of a water reducer and 115-125kg of water. The components are mixed with stirring for 1.5-2 minutes to obtain a concrete mixture. The concrete provided by the invention is less in binding material use, the total shrinkage percentage is less than (0.03-0.04per mill), the emptying time of an inverted slump cone is 5-10 seconds, the viscosity of mortar in same proportion is 20-28 Mp.s, the 28d compressive strength is 110-130MPa, and the 56d compressive strength is 120-135MPa. The concrete has the characteristics of being low in bonding material use, short in stirring time, excellent in working performance and low in comprehensive cost, and can be produced on a large scale and has a broad application prospect.

The invention belongs to the technical field of solar cells and specifically discloses a planar heterojunction perovskite solar cell and a preparation method thereof. The planar heterojunction perovskite solar cell comprises a transparent conductive electrode, an electron transmission layer, a perovskite luminous absorption layer, a cavity transmission layer and a method electrode in sequence from down to up. The electron transmission layer is a TiO2 compact layer. The perovskite luminous absorption layer is made of a chloride-ion-doped perovskite material. According to the invention, a TiO2 mesoporous layer in a conventional sensitized solar cell is rejected, and the device structure and the preparation technology are simplified; the chloride-ion-doped perovskite material is used as the luminous absorption material, the film forming ability of a film is improved, and the diffusion and separation of carriers are facilitated; aimed at the processing of the transparent conductive electrode and the TiO2 compact layer, an oxygen plasma processing technology is provided, and the film forming effect is improved; and aimed at the thickness control problem of the perovskite luminous absorption layer, a layer-by-layer spin coating technology is adopted, and the photoelectric performance of the luminous absorption layer and the integral cell is regulated and controlled.

The invention discloses a method for breeding aphidius gifuensis within a short cycle. The method comprises the steps of: host plant cultivation, pest species breeding, and aphidius gifuensis large-scale breeding. A breeding cycle of the whole process is 29-40 days. Each dish of brassica chinensis can breed more than 12000 of aphidius gifuensis, a parasitism rate of the aphidius gifuensis is 95%, a formation rate of stiff aphids is 60%, and stiff aphids of the aphidius gifuensis in each dish can be used for controlling 10-15 mu of aphid-damaged farmland. Brassica chinensis of a vegetable variety is adopted as a host plant with high strong adaptability and fast growth; and the brassica chinensis a host plant variety with a shortest cultivation cycle in current breeding technology of sphidius gifuensis, thereby reducing a breeding cycle of the aphidius gifuensis, and improving breeding efficiency of the aphidius gifuensis. The method adopts a flotation breeding method for cultivating the host plant, is simple in process step and solves the problems such as high breeding energy consumption, a tedious technical process, poor activity of the aphidius gifuensis, and irregular formation of the stiff aphids of the aphidius gifuensis, and can increases a utilization rate of the aphidius gifuensis for wide application in agriculture and forestry industry, thereby enabling the aphidius gifuensis to have better feasibility of production, promotion, and application.

The invention discloses a preparation method of a super heavy oil refined oil-soluble efficient electro-desalting demulsifying agent, which comprises the steps of synthesizing phenol amine resin; performing condensation reaction of the phenol amine resin with epoxy propane and ethylene oxide sequentially to obtain block polyether; synthesizing thermoplastic phenolic resin by use of phenol, hydrochloric acid and formaldehyde; finally, performing a phenolic resin graft modification reaction between the obtained thermoplastic phenolic resin and the block polyether to obtain a product of super heavy oil refined oil-soluble efficient electro-desalting demulsifying agent. By adopting the preparation method disclosed by the invention, the oil-soluble efficient electro-desalting demulsifying agent can be efficiently prepared, the production cost is reduced, and the utilization rate of raw materials is improved; the demulsifying agent produced by the method can remarkably increase the desalting and dehydration speed of super heavy oil, saves the limited time and can effectively compensate for the shortcomings of a super heavy oil treatment process of a processing device.

The invention relates to a preparation method of a carbide-loaded noble metal monatomic catalyst, and belongs to the technical field of electro-catalytic materials. The technical problems of high preparation cost and low metal utilization rate of a noble metal catalyst for an electrochemical hydrogen production reaction at present are solved. In the synthesis process of a metal organic framework precursor, noble metal ions are introduced to be complexed with heteropolyacid and embedded into an organic framework pore channel in a self-assembly mode, and the precursor is subjected to high-temperature heat treatment and acid etching to obtain the carbide-loaded noble metal monatomic catalyst. The result shows that the loaded noble metal is uniformly dispersed on the carbide nanoparticles in a monatomic form. The catalyst shows good activity in alkaline electrochemical hydrogen evolution reaction. The preparation process of the catalyst is simple and easy to implement, the utilization rate of precious metal is remarkably increased, the cost of the electrocatalyst is effectively reduced, and the catalyst has wide application prospects.

The invention relates to an anti-aging photoelectric displacement sensor, which comprises a semiconductor substrate, an Al ZnO-doped film on the surface of the semiconductor substrate and two indium point electrodes on the surface of the film. The anti-aging photoelectric displacement sensor on the basis of lateral photovoltaic effects can be obtained by depositing the Al ZnO-doped film on the Si substrate through ultrasonic cleaning to replace a metal film layer in a metal- oxide-semiconductor structure. The nonlinear rate of the sensor can be controlled to be 3.22%, and the position sensitivity can reach 41.85mV/mm. As the Al ZnO-doped target material is directly used, the manufacturing technology is simple, and large-scale preparation in actual production can be realized.

The invention discloses an epoxy resin-organic bentonite-metal oxide composite material. The epoxy resin-organic bentonite-metal oxide composite material is formed by dispersing and compounding nano particles formed by mixing organic bentonite and ZnO-ZrO2 metal oxides in an epoxy resin matrix material; the preparation method of the composite material comprises the following steps of: uniformly dispersing nano particles of organic bentonite and ZnO-ZrO2 metal oxides into epoxy resin liquid by a mechanical mixing method; finally obtaining a novel epoxy resin-organic bentonite-ZnO-Zr2O2 metal oxide composite material by a series of stirring, adding and processing. In a preparation process, a leveling agent and a defoaming agent are not used, and therefore, preparation cost of the material is further lowered. An anti-corrosive coating material disclosed by the invention has good corrosion resistance and can be applied in marine engineering architectures and structural steel or a reinforcing steel bar in a relatively special industrial production condition; the preparation method of the composite material is simple in process, does not need a special device, and can realize large-scale production and application.

The invention discloses a method for producing amylase by using transgenic maize. The method comprises the following steps of transferring an encoding gene of amylase into a maize genome under the action of a GT1 promoter to construct amylase-producing transgenic maize. According to the transgenic maize, high expression of amylase is realized in endosperm, and the activity of the produced amylaseis extremely high and reaches 8000 units per gram of seeds or above; the amylase produced by the transgenic maize does not need to be separated and concentrated, and can be directly applied to the production processes of feed production, food processing, textile industry and the like; and a maize bioreactor is used for producing amylase, the production cost is low, and the method is an environment-friendly production mode.

The invention relates to a simple preparation method of honeycomb porous carbon with a high specific surface area. The preparation method comprises the following steps: mixing zinc acetate with glycerol for reaction to obtain an organic complex containing glycerol acetate and zinc glyceroxide; and calcining and cracking the organic complex precipitate containing glycerol acetate and glycerozinc athigh temperature to remove the soft template glycerol acetate, cleaning with dilute acid to remove zinc oxide, and collecting to obtain the honeycomb porous carbon. The method is novel in thought andsimple and convenient to operate, the preparation of the honeycomb porous carbon with the high specific surface area is controllably prepared by an in-situ dual-template strategy through a simple one-step method, and the obtained porous carbon is high in specific surface area and relatively uniform in pore structure.

The invention provides a visible-light-induced photocatalyst, and a preparation method and application thereof. The invention first provides a carbon-modified zeolitic material. The carbon-modified zeolitic material comprises carbon existing in the form of being doped into a zeolitic framework and/or attached to interiors of pores, wherein the content of carbon is 0.01%-90% based on 100% of the total weight of the zeolitic material. According to the preparation method, an organic template agent in parent zeolite can be converted into carbon by regulating and controlling calcining conditions inthe preparation process of zeolite, so the carbon is doped into the framework of the zeolite and/or attached into zeolite holes, and thus, the energy band gap width of the zeolite is effectively reduced, and the zeolite is converted into a visible-light-induced photocatalyst from a non-visible-light-induced material. The carbon-modified visible-light-induced zeolite photocatalyst provided by theinvention is safe to use, free of biotoxicity and excellent in photocatalytic performance, has the potential of large-scale production and application, and can be widely applied to the fields of air purification, water pollution prevention and control, sterilization and disinfection, deodorization and the like.

The invention relates to a photocatalytic reduction waste gas integrated circulating treatment device and a use method thereof. The photocatalytic reduction waste gas integrated circulating treatment device comprises a gas fractionator, a sublimation chamber, a pressure chamber, a liquid phase reaction chamber and a waste gas recovery device, wherein an outlet of the gas fractionator is connected with the sublimation chamber, the sublimation chamber is connected with the pressure chamber, the pressure chamber is connected with the liquid phase reaction chamber, the liquid phase reaction chamber is connected with the waste gas recovery device, the waste gas recovery device is connected with a gas inlet of the gas fractionator, and the gas fractionator is further provided with a waste gas inlet. Carbon dioxide and nitrogen oxide can be efficiently separated from industrial waste gas, carbon dioxide and nitric acid existing in a solution can be fully reacted in the liquid-phase reaction chamber to generate methanol, nitrogen, oxygen and other products, internal circulation of carbon dioxide can be achieved in the device, and the nitrogen oxide can be efficiently separated from the industrial waste gas. Other gas products generated by the photocatalytic reduction reaction are separated, so that the recycling rate of carbon dioxide in the industrial waste gas is increased.

The invention discloses a tin disulfide-black phosphorus composite material as well as a preparation method and an application thereof, which belong to the field of material preparation. The preparation method of the tin disulfide-black phosphorus composite material comprises the following steps: 1) dispersing black phosphorus nanosheets into absolute ethyl alcohol, and sequentially adding tin tetrachloride pentahydrate and cysteine to obtain a precursor solution; and 2) transferring the precursor to a polytetrafluoroethylene reaction kettle, carrying out a solvothermal reaction, and carryingout centrifugal cleaning and drying on the obtained reaction product to obtain the tin disulfide-black phosphorus composite material. The tin disulfide-black phosphorus composite material prepared bythe preparation method disclosed by the invention is uniform in morphology and stable in performance. The tin sulfide-black phosphorus composite material is applied to an NO2 gas sensor as a gas sensitive material, has obvious and rapid response and good selectivity to ppb-grade NO2 at room temperature, and has a great application prospect in the field of gas sensing.

The invention discloses a high-power LED and a preparation method thereof, and relates to the field of semiconductor illumination, the high-power LED comprises a silicon carbide substrate, one side of the silicon carbide substrate is provided with an AlN buffer layer, one side of the AlN buffer layer is provided with an InGaN buffer layer, one side of the InGaN buffer layer is provided with a non-doped InGaN layer, an n-type doped InGaN layer, an InGaN/GaN multi-quantum well layer, an In component gradient zigzag electron barrier layer and a p-type doped GaN film. The GaN-based blue light LED is prepared by taking silicon carbide as the substrate of the LED, the In component gradually-changed zigzag electron blocking layer is adopted, the electron and hole concentration of the LED adopting the zigzag electron blocking layer is higher than that of an LED adopting a conventional single-component electron blocking layer, and the carrier concentration distribution is relatively uniform; and the leakage of electrons can be effectively reduced, and the injection of holes is increased, so that the recombination rate of current carriers is improved, and the optical performance of the LED is improved.