Patents
Literature
15results about How to "Few preparation steps" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
A device and method for in-situ deformation of micro-nano samples in an electron microscope
ActiveCN116678901Bfew preparation stepsSave time and costElectric discharge tubesPreparing sample for investigationMicro nanoNanowire
The application discloses a device and method for bending and deforming micro-nano samples in-situ in an electron microscope, and belongs to the field of scanning / transmission electron microscope accessories and micro-nano material mechanical property measurement research. The device comprises four parts, namely a supporting part, a driving part, a bending loading part and a sample stage part. One end of the nano material is fixed to a suspended part at the front end of the sample stage, and the other end is a free end. The free end of the nano material is pushed by the bending loading part driven by the heating and bending bimetallic strip, so that the nano material achieves the bending and deformation effect. The application separates and fixes the bimetallic strip and the sample, solves the problems of poor mechanical stability and easy movement of the sample in the deformation process of the in-situ bending nano material, improves the stability of the fixed sample and in-situ imaging, realizes the bending and deformation of the sample, and simultaneously observes the structural evolution of the material in the deformation process. While realizing the bending and deformation of single / multiple nano wire shafts, the structural evolution of the material in the deformation process is observed in-situ.
Owner:BEIJING UNIV OF TECH
Thin-wall special-shaped light shield as well as preparation method and mold thereof
PendingCN119567468Areduce weightfew preparation stepsCamera filtersStructural engineeringMechanical engineering
Owner:CHANGCHUN CHANGGUANG AEROSPACE COMPOSITE MATERIALS CO LTD
Portable microalgae content detection equipment
PendingCN121762469AReduce detection stepsImprove detection efficiencyTransmissivity measurementsColor/spectral properties measurementsComputer hardwareProcess engineering
The invention relates to the technical field of microalgae content detection, in particular to portable microalgae content detection equipment, and solves the problem that the detection efficiency of the equipment is further delayed due to the fact that the detection method is relatively complicated and the pre-preparation step of the detection operation takes relatively long time when large-scale detection operation is carried out. Comprising a handheld cuvette detector body, and a convenient rotary detection mechanism is mounted on the lower end face of the handheld cuvette detector body. According to the invention, a plurality of cuvettes can be sequentially moved to a position between two optical detection assemblies for detection operation through the convenient rotation detection mechanism, the cuvettes can be firstly rotated through the microalgae mixing vortex-eliminating colorimetric detection mechanism to uniformly mix a microalgae-containing to-be-detected liquid, and then the flowing of the microalgae-containing to-be-detected liquid is forcibly cut off, so that the resting speed of the microalgae-containing to-be-detected liquid is accelerated, and the detection efficiency is improved. According to the technical scheme, the steps of detecting a large batch of microalgae-containing liquid to be detected by the equipment are reduced, and meanwhile, the detection efficiency of the equipment is improved.
Owner:JILIN PROVINCIAL ACADEMY OF FORESTRY SCIENCES JILIN
Amphoteric polymer material containing pyridine cations and sulfonate radicals, preparation method of amphoteric polymer material and application of amphoteric polymer material in ion exchange membrane of all-vanadium redox flow battery
ActiveCN119638959Areduce penetrationImprove Coulombic efficiencyRegenerative fuel cellsPolymer scienceElectrical battery
The invention relates to the technical field of ion exchange membrane materials in energy storage batteries, in particular to an amphoteric polymer material containing pyridine cations and sulfonate radicals, a preparation method of the amphoteric polymer material and application of the amphoteric polymer material in an ion exchange membrane of an all-vanadium redox flow battery, and solves the problem that an existing membrane material causes cross contamination of vanadium ions or poor ion conductivity. The polymer containing pyridine cations and sulfonate radicals is a poly (aryl-3-acetylpyridine) zwitterionic polymer; the preparation method I comprises the following steps: carrying out polymerization reaction on an aromatic monomer, zwitterionic 3-acetylpyridine and a non-ionized 3-acetylpyridine monomer under the catalysis of an organic solvent I and acid to prepare a poly (aryl-3-acetylpyridine) zwitterionic polymer containing pyridine cations and sulfonate radicals; the preparation method II comprises the following steps: polymerizing an aromatic monomer and 3-acetylpyridine, and then carrying out ionization reaction in an organic solvent III by using a sulfonating reagent and taking potassium carbonate as a catalyst to prepare the poly (aryl-3-acetylpyridine) zwitterionic polymer containing pyridine cations and sulfonate radicals.
Owner:JIANG SU MEI MIAO CHU NENG KE JI YOU XIAN GONG SI
Membrane material low in cost and easy to prepare and method for separating oil-water emulsion by using membrane material
PendingCN119488815Aeasy to separateReduce processing costsSemi-permeable membranesFatty/oily/floating substances removal devicesOil and greaseEcological environment
The invention relates to a low-cost easy-to-prepare membrane material which comprises a substrate and a separation membrane, the separation membrane covers the substrate, and the substrate is office paper; the separation membrane is sodium alginate hydrogel coated with nano particles. And the nano particles in the separation membrane are nano SiO2 or nano TiO2. Experiments prove that the membrane material can realize efficient separation of oil and water in grey water, can be used for solving the problem of pollution of grease in grey water to a water body, and protects the water body and the ecological environment. Reagents and materials used in the preparation process of the membrane material are common materials, the preparation steps are few, the treatment efficiency of grey water is high, the membrane material can be degraded after being discarded, and economic benefits and environmental benefits are good.
Owner:TECH CENT FOR SOIL AGRI & RURAL ECOLOGY & ENVIRONMENT MINIST OF ECOLOGY & ENVIRONMENT
A kind of weathering steel for railway bogie containing vanadium and its preparation method
ActiveCN116695025Bhigh strengthaccelerated corrosionProcess efficiency improvementBogiesBogieChemical composition
The invention discloses a vanadium-containing weathering steel for railway bogies and a preparation method thereof. The weathering steel has the following chemical compositions: C: ≤0.10%, Si: ≤0.40%, Mn: ≤2.10%, S: ≤0.010%, P: ≤0.015%, Al: 0.015-0.050%, V: 0.05-0.15%, N: 0.008-0.020%, Cr: 0.30-0.70%, Ni: 0.20-0.60%, Cu: 0.10-0.50%, Mo: 0.10-0.50%, Ti: 0.006-0.02%, and the remainder is Fe and impurities; and the structural composition of the weathering steel is fine-grained polygonal ferrite, acicular ferrite and granular bainite or fine-grained polygonal ferrite, acicular ferrite, granular bainite and lath bainite. This weathering steel is resistant to atmospheric corrosion and has good comprehensive strength and toughness properties. It does not require preheating before welding and does not require heat treatment after welding.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Perovskite thin films, perovskite devices and their fabrication methods
ActiveCN115148912Bmake up for lossesReduce voltage loss
This invention discloses a perovskite thin film, a perovskite device, and a preparation method thereof. The preparation method of the perovskite thin film includes: coating a perovskite precursor solution onto a substrate to form a liquid film; removing at least a portion of the solvent from the liquid film using a vacuum process to form an intermediate phase film; and performing an annealing treatment to form the perovskite thin film; wherein the perovskite precursor solution contains an excess of A-site cations. The preparation method provided by this invention effectively compensates for the loss of A-site cations during the vacuum process, inhibits the formation of residual B-site cation salts, reduces device voltage loss, increases the grain size of the perovskite thin film, improves carrier transport and extraction, and increases the short-circuit current of the device; it is simple and easy to implement, low in cost, and requires no additional steps, making it suitable for the preparation of large-area perovskite thin films; it reduces the number of steps in perovskite device preparation, lowers material costs, and facilitates industrial development.
Owner:KUNSHAN GCL OPTOELECTRONIC MATERIAL CO LTD
A fluorine-erbium co-doped tin oxide film and its preparation method and application
ActiveCN116334557BSolution to short lifeHigh electroluminescence efficiencyFinal product manufactureVacuum evaporation coating
The present invention discloses a fluorine-erbium co-doped tin oxide film, a preparation method thereof, and an application in the field of near-infrared electroluminescence. The preparation method comprises: introducing a mixed gas of argon and oxygen under vacuum, and using a radio frequency magnetron sputtering method to co-sputter and deposit a thin film on a fluorine-doped tin oxide target and an erbium oxide target; the mass percentage of stannous fluoride in the fluorine-doped tin oxide target is not more than 20%; in an oxygen or nitrogen atmosphere, heating the film obtained by co-sputtering deposition to above 200°C for high-temperature heat treatment, and cooling to obtain a fluorine-erbium co-doped tin oxide film. After the film of the present invention is used to make an electroluminescent device, under the condition of applying a reverse bias, strong electroluminescence can be achieved based on the electron impact ionization effect occurring in the space charge region.
Owner:ZHEJIANG UNIV
Preparation method of amidated pyrido [4, 3, 2-gh] phenanthridine compound
PendingCN119462651Aeasy to makefew preparation stepsOrganic chemistryPhotocatalytic reactionPyridinium
The invention relates to the technical field of organic synthesis, in particular to a preparation method of an amidated pyrido [4, 3, 2-gh] phenanthridine compound. The preparation method comprises the following steps: mixing an N-(2-cyano-1, 1 '-biphenyl) acrylamide compound, N-amido pyridinium salt, a photocatalyst, alkali and a solvent, and carrying out a photocatalytic reaction at room temperature by using visible light as an energy source to obtain the amidated pyrido [4, 3, 2-gh] phenanthridine compound. According to the invention, a pyridine ring and a phenanthridine ring are fused as a parent, and one-step synthesis of the amide-substituted pyrido [4, 3, 2-gh] phenanthridine compound is realized through free radical addition / CN insertion / cyclization cascade reaction. The preparation process is simple, the reaction condition is mild, the application range is wide, and various phenanthridine derivatives can be prepared at medium to good yield.
![Preparation method of amidated pyrido [4, 3, 2-gh] phenanthridine compound](https://images-eureka.patsnap.com/patent_img/cd87821a-1594-453a-baf4-38b23b9084d3/SMS_8.png "Preparation method of amidated pyrido [4, 3, 2-gh] phenanthridine compound")
![Preparation method of amidated pyrido [4, 3, 2-gh] phenanthridine compound](https://images-eureka.patsnap.com/patent_img/cd87821a-1594-453a-baf4-38b23b9084d3/SMS_9.png "Preparation method of amidated pyrido [4, 3, 2-gh] phenanthridine compound")
![Preparation method of amidated pyrido [4, 3, 2-gh] phenanthridine compound](https://images-eureka.patsnap.com/patent_img/cd87821a-1594-453a-baf4-38b23b9084d3/SMS_10.png "Preparation method of amidated pyrido [4, 3, 2-gh] phenanthridine compound")
Owner:HENAN UNIV OF CHINESE MEDICINE
Small-diameter flange welding tool
ActiveCN121649682BWill not distort the situationlow experience requirementWelding/cutting auxillary devicesAuxillary welding devicesFlangeManufacturing engineering
This application discloses a welding fixture for small-diameter flanges, belonging to the technical field of small-diameter flanges. It mainly includes a drive cylinder with an output shaft; an adjusting plate; a sliding groove formed on the adjusting plate, in which a slider is slidably connected, connected to the output shaft, and the drive cylinder used to drive the slider to move laterally; a locking mechanism comprising: two sets of circularly opposed arc plates rotatably connected to the slider, with a chuck mounted at the other end of the two sets of arc plates, the lateral movement of the slider suitable for moving the two sets of arc plates and the chuck; a support plate rotatably connected to one side of the adjusting plate, with baffles mounted on both the upper and lower sides of the support plate; and a support mechanism for supporting the connecting pipe. The locking mechanism and the support mechanism are coaxially arranged. This small-diameter flange welding fixture reduces pre-welding preparation steps, ensures coaxial arrangement of the pipe diameter and flange, prevents flange misalignment, and enables rapid batch processing.
Owner:XIAN ALPS ENVIRONMENTAL PROTECTION TECH CO LTD
Single-phase full-bridge intelligent power module based on gallium nitride power chip and manufacturing method
ActiveCN115296507Breduce overvoltageReduce current oscillation
Single-phase full-bridge intelligent power module based on gallium nitride power chip and manufacturing method, including ceramic substrate, power chip, drive chip, power copper surface, decoupling capacitor, printed circuit board and shell; a plurality of power copper surfaces are arranged on the ceramic substrate, gaps are left between adjacent power copper surfaces, the decoupling capacitor and the power chip are arranged on the power copper surface; the printed circuit board is covered on the ceramic substrate, and a plurality of drive chips are arranged on the printed circuit board; the ceramic substrate, the power chip, the drive chip, the power copper surface, the decoupling capacitor and the printed circuit board are arranged in the shell. The processing flow designed by the application is easy to realize the automation of power module processing and preparation, effectively reduces the preparation steps of the power module, improves the yield of the power module preparation, and the raw material cost of processing and use is low, effectively controls the production cost of the power module. At the same time, the preparation process can guarantee the electrical insulation performance and the reliability of the electrical bonding connection in the power module.
Owner:XI AN JIAOTONG UNIV +1
Display panel and display device
PendingCN122270000AGood shading effectImprove the brightness of the forward lightDisplay deviceRefractive index
The application discloses a display panel and a display device. The display panel comprises a substrate, a pixel layer arranged on one side of the substrate, the pixel layer comprising a plurality of pixel units, each pixel unit comprising at least two sub-pixels with different colors; a color resistance layer comprising at least two layers of sub-color resistance layers with different colors, each sub-color resistance layer comprising a light transmission opening and a color resistance part distributed around the light transmission opening, the color resistance part comprising a light filtering sub-part and a functional sub-part arranged around the light filtering sub-part, the light filtering sub-part being located on the side of the sub-pixel with the same color as itself away from the substrate, the functional sub-parts of the at least two layers of sub-color resistance layers with different colors being stacked to form a light blocking structure, in the two adjacent sub-color resistance layers, the light filtering sub-part of the sub-color resistance layer away from the substrate is located in the light transmission opening of the sub-color resistance layer close to the substrate, and the refractive index of the sub-color resistance layer on the side close to the substrate is smaller than that of the sub-color resistance layer away from the substrate.
Owner:HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
Liquid-phase preparation method of non-pressure crystallized superfine copper powder
PendingCN121820683AStable control of crystallization ratioreduce manufacturing costProcess efficiency improvementMetallurgyHigh energy
The invention relates to the technical field of copper powder preparation, and provides a liquid-phase preparation method of non-pressure crystallized superfine copper powder, which adopts a water-phase reduction process, and realizes stable control of crystallization proportion and particle size distribution of superfine spheroidal copper powder by accurately regulating and controlling a reducing agent, a complexing agent, a crystallization modifier and reaction conditions. The problems of harsh reaction conditions, high energy consumption, high toxicity and the like of a traditional high-temperature method are solved; the obtained copper powder is uniform and stable, is suitable for the fields of precision electronics, specific catalysis and the like, flexibly adapts to downstream requirements by adjusting the sintering temperature within the range of 250-350 DEG C, and meets the application of flexible electronics, power chip interconnection and the like. The process is simplified in steps, environment-friendly and safe, the production cost is greatly reduced, the production efficiency is improved, and large-scale industrial production is facilitated.
Owner:ANHUI NASH NEW MATERIAL TECHNOLOGY CO LTD
Preparation method of solid electrolyte membrane
PendingCN119674188Aevenly distributedimprove performanceSecondary cellsSolid state electrolyteCompression molding
The invention relates to a preparation method of a solid electrolyte membrane, and belongs to the field of solid electrolyte. The preparation method comprises the following steps: uniformly mixing active salt, a polymer, ceramic powder and an organic solvent to obtain a solid electrolyte solution; wherein the concentration of the active salt in the solid electrolyte solution is 0.5-1.5 mol / L, the mass ratio of the polymer to the ceramic powder is 1: (0.5-2), and the total mass of the active salt, the polymer and the ceramic powder accounts for 30-70 wt% of the solid electrolyte solution; placing a non-woven fabric in the solid electrolyte solution, dipping, taking out, and drying to obtain a solid electrolyte membrane blank; and performing compression molding on the solid-state electrolyte membrane blank, and performing annealing treatment under a vacuum condition to obtain the solid-state electrolyte membrane. The preparation method disclosed by the invention is simple and compact in process, can simply realize uniform distribution of the active substances in the non-woven fabric, is beneficial to reducing the preparation cost, and improves the performance of the solid electrolyte membrane.
Owner:深圳毅华新能源有限公司 +1
Electrode-free constrained annealing hafnium oxide-based ferroelectric film and preparation method and application thereof
ActiveCN119615118AImprove ferroelectric propertiesIncreased durabilityChemical vapor deposition coatingFerroelectric thin filmsThin membrane
The invention discloses an electrode-free constrained annealing hafnium oxide-based ferroelectric film and a preparation method and application thereof.Hf0. 5Zr0. 5O2 films with a set number of layers and an Al2O3 film are alternately deposited on a substrate through the ALD technology, Alx-(Hf0. 5Zr0. 5O2) y ferroelectric films with different doping concentrations are obtained, x represents the number of layers of Al2O3 deposited through ALD, and y represents the number of layers of Hf0. 5Zr0. 5O2 deposited through ALD; the obtained Al < x >-(Hf < 0.5 > Zr < 0.5 > O < 2 >) < y > ferroelectric film is subjected to high-temperature annealing, and an Al < x >-(Hf < 0.5 > Zr < 0.5 > O < 2 >) < y > ferroelectric film sample is obtained; and plating a top electrode and a bottom electrode on the obtained Alx-(Hf0. 5Zr0. 5O2) y ferroelectric film sample to obtain the hafnium oxide-based ferroelectric film. According to the invention, the performance of the annealed ferroelectric film without electrode constraint is improved, the understanding of the ferroelectric principle of the HfO2 film is deepened, and the development of the novel practical ferroelectric film field is promoted.
Owner:XI AN JIAOTONG UNIV