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Preparation method of spongy graphene-based stretchable gas sensor
InactiveCN104807861APrecise control of growth temperatureDefect peak lowMaterial nanotechnologyMaterial resistanceElastic substrateGas phase
The invention relates to a preparation method of a spongy graphene-based stretchable gas sensor. Firstly, a spongy graphene material is prepared on nickel foam with a chemical vapor deposition method, the prepared graphene / nickel foam is immersed in an etching solution and slowly reacts, accordingly, most of nickel metal is replaced chemically, the nickel metal is turned into small nickel particles, a spongy graphene / nickel particle mixing structure is fished out of the etching solution with a seal type fishing method and then is cleaned and dried, a prestretching elastic substrate is slowly recovered to the original length or area, electrodes are prepared at two ends of the graphene / nickel particle mixing structure, and the stretchable gas sensor is obtained. The gas sensor has high conductivity and good gas sensitive characteristic, is low in cost and controllable and can realize large-area growth.
Owner:SHANDONG NORMAL UNIV
Nitrile resin monomer, nitrile resin polymer and preparation method of nitrile resin monomer and nitrile resin polymer
InactiveCN102976972ALow viscosityReduce liquidityCarboxylic acid nitrile preparationOrganic compound preparationPolymer scienceResin matrix
The invention discloses a nitrile resin monomer, a nitrile resin polymer and a preparation method of the nitrile resin monomer and the nitrile resin polymer, belonging to the technical field of organic polymer materials. The nitrile resin monomer is a tetraphthalonitrile resin monomer containing benzoxazine cycle, and the nitrile resin polymer is a product obtained by heating polymerization of the nitrile resin monomer. The nitrile resin monomer has a low viscosity, a good mobility and the processing performances of low-temperature curing and the like at a low temperature. The nitrile resin polymer has the good curing performances of self-flame resistance, adhesion, heat stability and the like. The resin monomer has the good processing performances of benzoxazine resins, and the resin polymer has the high-temperature resistance of nitrile resins, thus reducing the curing processing temperature and being capable of being used in a high-temperature temperature, namely, having the advantages of low temperature processing, medium temperature formation and high temperature use; and the resin monomer and the resin polymer can be used in the fields of coatings, adhesives, electronic packaging materials, aeronautics, astronautics, ships, resin matrix composites and the like. The preparation method is simple and easy to control, low in reaction temperature, energy-saving, and suitable for industrialized production.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Conductive rubber material for flexible sensor and preparation method and application of conductive rubber material
InactiveCN105482176ANarrow resistance distributionReduce pollutionForce measurementRubber materialEngineering
The invention is applicable to the field of flexible sensors and provides a conductive rubber material for a flexible sensor and a preparation method and application of the conductive rubber material. The conductive rubber material comprises, by weight, 100 parts of rubber base bodies and conductive filler, wherein the conductive filler comprises, by weight, 5-50 parts of conductive black and / or 20-100 parts of silver-containing conductive filler bodies; the conductive rubber material is made in the mode that the conductive filler is dispersed in the rubber material, and radiation crosslinking is conducted through electron beams or gamma rays.
Owner:SHENZHEN HUIRUI ELECTRONICS MATERIALS
Electroluminescent display with organic and inorganic mixed luminescent layer and preparation method of display
ActiveCN105304681AImprove efficiencyExtend your lifeSolid-state devicesSemiconductor/solid-state device manufacturingQuantum dotGreen-light
The invention provides an electroluminescent display with an organic and inorganic mixed luminescent layer suitable for the technical field of panel display. The display comprises a TFT array backboard, the TFT array backboard is provided with a first electrode, and the first electrode is connected with a source or drain electrode of the TFT array backboard; the first electrode is provided with a pixel defining layer, the pixel defining layer comprises multiple pixel units, the pixel units comprise three sub pixel pits isolated from one another, and the sub pixel pits are placed on the first electrode so that part of the first electrode is exposed out of the pixel defining layer; the part, exposed out of the pixel defining layer, of the first electrode is provided with the organic and inorganic mixed luminescent layer which comprises a red light quantum dot luminescent layer, a green light quantum dot luminescent layer and a blue light organic luminescent layer; and a second electrode is arranged on the organic and inorganic mixed luminescent layer.
Owner:GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
Preparation method of metal-oxide dual-interface catalyst
InactiveCN105817270AOptimal Control StructureControllable interfaceCatalyst activation/preparationMetal/metal-oxides/metal-hydroxide catalystsFiberNanoparticle
A preparation method of a metal-oxide dual-interface catalyst includes the steps that nanofibers and ethyl alcohol are mixed and dispersed to form uniform suspension, and the surface of a glass sheet is coated with the suspension to obtain a matrix; an oxide film or nanoparticles or a polymer film is deposited on the surface of nanofibers of the matrix through atomic layer deposition, the organic polymer film is removed through heat treatment, and the metal-oxide dual-interface catalyst is obtained .The preparation method has the advantages that the particle size is controllable, dispersion is uniform, and metal-oxide interfaces are controllable.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
Conductive rubber material for flexible sensors and preparation method and application thereof
InactiveCN105647030ANarrow resistance distributionReduce pollutionNon-conductive material with dispersed conductive materialRubber materialEngineering
The invention is suitable for the field of flexible sensors and provides a conductive rubber material for flexible sensors and a preparation method and application thereof. The conductive rubber material is prepared from, by weight, 100 parts of rubber matrixes and 5-200 parts of conductive filler. The conductive rubber material is prepared in the mode that the conductive filler is dispersed in a rubber material and subjected to radiation crosslinking of electron beams or gamma rays.
Owner:SHENZHEN HUIRUI ELECTRONICS MATERIALS
Preparation method of double-interface catalyst for one-process hydrogen production-hydrogenation coupling reaction and application of catalyst
InactiveCN105903480AImprove isolationDoes not hinder deliveryOrganic compound preparationHydrocarbon by hydrogenationFiberOrganic film
The invention provides a preparation method of a double-interface catalyst for a one-process hydrogen production-hydrogenation coupling reaction. Needed metal nano particles, metal oxide and an organic film are deposited on nano fibers in sequence by utilizing an atom-layer deposition technology; and then, after heat treatment and reduction, a controllable multi-interface and multifunctional catalyst is obtained. The double-interface catalyst has the advantages of controllable particle sizes, uniformity in dispersion and controllable metal-oxide interfaces.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
Carbon-based magnetic mesoporous composite microsphere and preparation method thereof
InactiveCN102110506AAchieving Magnetic Field ManipulationImprove adsorption capacityInorganic material magnetismMicroballoon preparationMicrosphereDrug carrier
The invention provides a carbon-based magnetic mesoporous composite microsphere and a preparation method thereof, belonging to the technical field of the preparation of an inorganic composite material. The diameter of the carbon-based magnetic mesoporous composite microsphere particle is 3-6 microns, the specific surface area of the microsphere is 270-315 m2 / g, the pore diameter is 4-8 nanometers, and the pore volume is 0.15-0.31 cm3 / g. The preparation method comprises the following steps: firstly, synthesizing an FexOy / carbon-based composite microsphere; and then, preparing the gamma-Fe2O3 / carbon-based magnetic mesoporous composite microsphere. The invention has the following obvious advantages: the FexOy / carbon-based composite microsphere is synthesized in one step, the activation and magnetization are synchronously carried out, and the obtained material has a simplex magnetic component, is in a mesoporous structure and has a large specific surface area. The preparation method of the mesoporous carbon-based magnetic composite microsphere is simple and easy to control magnetically, can be used as a micro adsorbent or magnetic targeted drug carrier, and has potential application value in delivery and separation processes.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Self-adaptive neural network automatic berthing control method and equipment for underactuated ship and medium
ActiveCN108563130ARealize automatic berthing controlReduce conservatismAdaptive controlModel dynamicsSelf adaptive
The invention provides a self-adaptive neural network automatic berthing control method for an underactuated ship. According to the method, an additional control method is adopted for solving the difficulty of design of an underactuated controller; uncertain ship model dynamic parameters and unknown disturbance vectors are reconstructed by utilizing a neutral network self-adaptive method of navigation dynamic depth information, the neutral network weight, approximate error and disturbance quantity are taken as complex uncertain parameters to be estimated on line, the problem that since disturbance and approximate error are separated to be processed, the unknown disturbance input cannot directly approach and the coupling property to the system is neglected is solved, the uncertain couplingproperty is considered, also the design conservatism is reduced, and also the system computation load is reduced; the input saturation of rudder and paddle executors are considered in the controller,and dynamic technology and minimum study parameter methods are introduced, so that the provided control method is more convenient, and the engineer is easy to realize.
Owner:SHANDONG JIAOTONG UNIV
Porous core-shell nano auriferous alloy and preparation method for same
InactiveCN102581273ALarge specific surface areaImprove catalytic performanceMaterial nanotechnologySingle crystalNanostructure
The invention discloses a porous core-shell nano auriferous alloy and a preparation method for the same. The alloy comprises an Au (gold) core and a metal shell of a porous structure, the thickness of the shell ranges from 25nm to 35nm, and components of the shell consist of Au, Pd (palladium), Pt (platinum) and alloy of Au, Pd and Pt. Compared with the prior art, the method is used for preparing a porous core-shell auriferous alloy nano structure by using low-valence (univalent or divalent) noble metal saline solution as raw materials. The method is simple, controllable, high in reproducibility and generally applicable, and purity approximates 100%. Compared with a monocrystal core-shell nano structure, the porous core-shell auriferous alloy nano structure is larger in specific surface area and more excellent in catalysis, and can be used for heterogeneous catalysis and used as electrode materials for electro-catalysis and fuel cells.
Owner:ANHUI NORMAL UNIV
Self-extinction type modified water-borne polyurethane coating material and preparation method and application thereof
InactiveCN106750080AHigh modulusHigh hardnessPolyurea/polyurethane coatingsLeather surface finishingCross-linkEpoxy
Owner:FOSHAN CENT FOR FUNCTIONAL POLYMER MATERIALS & FINE CHEM
Micro-droplet control method based on laser direct writing technology
ActiveCN107937915AHigh resolutionStrong flexibilityNanotechnologyMetallic material coating processesShape controlImage resolution
The invention discloses a micro-droplet control method based on a laser direct writing technology. The micro-droplet control method includes the steps that a Ti film deposited on a substrate reacts with a NaOH aqueous solution to form a Ti film with a porous rough structure, then a layer of fluorine silane is modified on the Ti film, and a super hydrophobic film is obtained; finally, the laser direct writing technology is used to make patterns of various shapes on the surface of super hydrophobic film, and micro droplets on the super hydrophobic film are controlled through the patterns; the high temperature action of laser makes the hydrophobic and porous surface of the pattern positions smelt, and the roughness of the surface is changed, so that parts which are not machined by laser on the pattern position and the super hydrophobic film form wetting contrast; and therefore, operation such as micro-droplet shape control, directional driving and collection can be conducted on the microdroplets by designing different patterns, furthermore, the laser direct writing technology is high in machining resolution and high in flexibility, and the micro droplets of the nano-liter level.
Owner:SHENZHEN TECH UNIV
Preparation method for ionic liquid gel with high elongation rate and adjustable elastic modulus
InactiveCN103788284AModulus of elasticity adjustableAdjustable tensile modulusTensile strainSilica gel
The invention discloses a preparation method for ionic liquid gel with high elongation rate and adjustable elastic modulus. The preparation method comprises the steps of adding an acrylic monomer into imidazole ionic liquid, adding an acrylic crosslinking agent and a light initiator, stirring and fully mixing, pouring the mixed liquid into a glass plate mold clamped with a silica gel pad, putting the glass plate mold into an ultraviolet crosslinking instrument and irradiating for 1-10 hours to obtain the ionic liquid gel with high elongation rate and adjustable elastic modulus. According to the preparation method, the acrylic monomer is crosslinked into the ionic liquid in situ to solidify the ionic liquid to prepare the ionic liquid gel with high elongation rate and adjustable elastic modulus. The method is simple and controllable; compared with the conventional ionic liquid solidifying method, the preparation method disclosed by the invention has the advantages that the tensile modulus (2-50kPa) and the tensile strain (the elongation rate is 3-22 times) of the prepared ionic liquid gel are adjustable; the application range of the ionic liquid serving as a biomaterial, an energy storage material, a driver material and the like is expanded.
Owner:XI AN JIAOTONG UNIV
Soft TPO material for automobile interior decoration as well as preparation method thereof
InactiveCN109159513AHas a soft feelSoft feel lowSynthetic resin layered productsSuperstructure subunitsElastomerWater based
The invention provides a soft TPO material for automobile interior decoration as well as a preparation method thereof. The soft TPO material comprises a back coating, a foaming agent, a soft TPO layerand a water-based coating layer sequentially from bottom to top, wherein the back coating is a polyurethane type coating agent or a polyolefin coating agent; the foaming agent is a polypropylene foamlayer; the soft TPO layer comprises the following components in parts by weight: 20 to 60 parts of TPO, 10 to 40 parts of ethylene propylene diene monomer rubber, 5 to 20 parts of polyolefin elastomer, 5 to 15 parts of modified polypropylene, 0 to 5 parts of light stabilizer, 0 to 5 parts of heat stabilizer and 4 to 8 parts of pigment; and the water-based coating agent is a water-based polyurethane coating agent. The preparation method of the soft TPO material for automobile interior decoration comprises the following steps: extruding soft TPO skin by an extruding method, performing surface treatment, compounding the foaming agent and finally preparing the soft TPO material. The soft TPO material prepared by the method has soft hand feeling and soft touch feeling, is comfortable to use, has the advantages of low odor and low VOC, and is recoverable, green and environmentally-friendly.
Owner:SUZHOU RUIGAO NEW MATERIAL CO LTD
Process for preparing stretchable supercapacitor based on highly conductive graphene/nickel particle mixed structure
InactiveCN104882297APrecise control of growth temperatureDefect peak lowHybrid capacitor electrodesTransportation and packagingCvd grapheneCapacitance
The invention relates to a process for preparing a stretchable supercapacitor based on a highly conductive graphene / nickel particle mixed structure. Firstly, a chemical vapor deposition method is used for preparing spongy graphene material on a nickel foam, and the prepared graphene / nickel foam are immersed in an etching solution for slow reaction so that most of the nickel metal can be chemically displaced into various small nickel particles; secondly, the spongy graphene / nickel particle mixed structure is fished out from the etching solution by using a seal-type fishing method, cleaned and dried, and a pre-stretched elastic substrate slowly returns back to the original length or area; and thirdly, the prepared stretchable graphene / nickel particle mixed structure is used as electrode material, and an all-solid-state stretchable supercapacitor is prepared according to the elastomer / electrode / solid electrolyte / electrode / elastomer structure. According to the invention, the capacitance of a conventional capacitor is increased, contact resistance is reduced, the stretching stability, frequency and performance are excellent, the cost is low, and the method is controllable and suitable for mass production.
Owner:SHANDONG NORMAL UNIV
Preparation method for metallic oxide loaded activated carbon
InactiveCN107413329AGood combinationNot easy for catalyst to fall offCatalyst carriersCatalyst activation/preparationBiomassActivated carbon
The invention relates to a preparation method for metallic oxide loaded activated carbon. The preparation technology is characterized by comprising the following preparation steps: step 1 of smashing and screening biomass and carbonizing the biomass by high temperature; further smashing the carbide, then putting the carbide into diluted mineral acid, boiling refluxing, and filtering washing to neutral; putting the carbide processed by the acid into an alkali metal hydroxide solution, and boiling refluxing; filtering washing to neutral and drying; step 2 of weighing an additive and adding deionized water to prepare an additive solution; adding metal salt into the additive solution to be completely dissolved; step 3 of taking the carbide and the alkali metallic oxide treated in the step 1 and jointly smashing by a smashing machine; adding the solution prepared in the step 2 and stirring to prepare a pretreated raw material; step 4 of putting the raw materials in the step 3 into an inert atmosphere to be roasted; step 5 of smashing the roasted product in the step 4, washing to neutral and completely drying to obtain the metallic oxide modified biomass loaded activated carbon material. The preparation technology has the advantages of simpleness and easiness in control, safety, low cost and easiness in scale production.
Owner:CHINA FIRST AUTOMOBILE
Method for preparing silica antireflective film
InactiveCN101995589ALow refractive indexThe control method is simple and convenientCoatingsOptical elementsDicarbonateCITRATE ESTER
The invention provides a method for preparing a silica antireflective film, which comprises the following steps of: a) uniformly mixing a tetraethoxysilane and absolute ethyl alcohol-containing system, and preparing silica sol under the alkaline condition through a sol-gel method, wherein the system also comprises one or more of soluble carbonate, bicarbonate, citrate, tartrate and oxalate; and b) coating the silica sol prepared in the step a) and performing heat treatment so as to prepare the silica antireflective film. By the provided preparation method, an antireflective film with the refractive index of 1.18 to 1.32 and the light transmittance of 97 to 99 percent can be stably prepared, the technology is simple and controllable, and the repeatability is high.
Owner:BYD CO LTD
Manufacturing method of SU-8 nano fluid system
The invention discloses a manufacturing method of an SU-8 nano fluid system, which is characterized by comprising the following steps of: manufacturing a photoetching-stamping combined template by utilizing a holographic exposure technology, applying the photoetching-stamping combined template to the processing of the SU-8 nano fluid system and realizing the manufacture of the nano fluid system by utilizing the different functions of different parts contained in the photoetching-stamping combined template and combining a bonding technology. The method has simple operation, realizes the synchronous molding of a sample pool and a nanochannel, has low manufacturing cost and does not need harsh equipment. Shown by the result of a fluid filling test for the manufactured nano fluid system, the system has no layering or blockage, the boundary of the channel is clear, the interface of bonding also can not be seen, and good quality is showed.
Owner:HEFEI UNIV OF TECH
Method for preparing graphene fine wires
ActiveCN103889158AHigh sensitivityImprove performanceConductive pattern formationCvd graphenePhotoresist
The invention is applicable to the technical field of graphene application and provides a method for preparing graphene fine wires. The method includes the steps of cleaning graphene films, coating the graphene films with photoresist, carrying out exposure treatment, and carrying out development treatment, etching treatment and film stripping treatment. The method has the advantages of being simple in process and low in cost, and the graphene fine wires prepared through the method are good in performance.
Owner:SHENZHEN SUCCESS ELECTRONICS LTD
Method for preparing high-conductivity stretchable sponge graphene-based electrode material
InactiveCN104827021APrecise control of growth temperatureDefect peak lowElastic substrateCvd graphene
The invention relates to a method for preparing a high-conductivity stretchable sponge graphene-based electrode material. A chemical vapor deposition method is adopted to grow sponge graphene on a foam metal substrate; then, the prepared graphene / foam metal is soaked into an etching solution, and the concentration and the temperature of the etching solution are controlled so as to obtain a graphene / metal particle mixing structure; then, the prepared graphene / foam metal is fished out of the etching solution to be cleaned; pre-stretching 3M stretchable rubber tape is used for covering the surface of graphene, and the graphene is fished out and naturally dried; a pre-stretching elastic substrate covering a flexible graphene / metal particle mixing structure slowly recovers to the original length or area, so that the self-assembling crumpled stretchable graphene / metal particle mixing structure electrode material is prepared. The electrode material is excellent in stretching performance, good in stability, high in conductivity, low and controllable in cost, and capable of being produced in a large-scale manner, and has the great application value.
Owner:SHANDONG NORMAL UNIV
Molybdenum disulfide/gold nanoparticle mixed structure biosensor material and preparation method thereof
ActiveCN106525812AEnhanced chemisorptionEnable separation and detectionRaman scatteringChemisorptionMolybdenum disulfide
The invention discloses a molybdenum disulfide / gold nanoparticle mixed structure biosensor material and a preparation method thereof. The molybdenum disulfide / gold nanoparticle mixed structure biosensor material comprises a glass fiber paper substrate, two-dimensional molybdenum disulfide adhered to the glass fiber paper substrate and gold nanoparticles adhered to the two-dimensional molybdenum disulfide. Molybdenum disulfide growth temperature is accurately controlled. Grown molybdenum disulfide has low defect peak and high crystalline quality. Grown molybdenum disulfide size is only limited by CVD cavity, and large-area growth of molybdenum disulfide can be realized. The molybdenum disulfide / metal particle mixed structure with grown metal particles has extremely high chemisorption and physical strengthening mechanisms. By the etching method for growth of gold particles, etching time can be controlled to accurately control size of the gold particles. In addition, the gold particles can uniformly grow on the whole material, which is beneficial to detection of biomolecules. The prepared biosensor can simultaneously realize separation and detection of biomolecules. The method is simple and controllable, is low-cost, and has high application value.
Owner:SHANDONG NORMAL UNIV
Preparation of carbon nano-tube array
ActiveCN101209832AIncrease scan frequencyThe control method is simple and convenientNanostructure manufactureFibre chemical featuresGalvanometerCarbon nanotube
The invention relates to a preparation method of carbon nanotube arrays. The method comprises the steps: a base is provided; one surface of the base is provided with a layer of catalyst; the mixed gas of carbon source gas and carrier gas flows across the surface of the layer of catalyst; laser beams are focused on the base after passing through a galvanometer scanning system, thus growing the carbon nanotube arrays.
Owner:TSINGHUA UNIV +1
Method for preparing micron frame-shaped manganese series lithium ion battery cathode material
InactiveCN102070199AImprove securityExtended service lifeManganates/permanganatesManganeseLithium-ion battery
The invention belongs to the field of energy sources, particularly relating to a method for preparing a micron frame-shaped manganese series lithium ion battery cathode material. The method is characterized by comprising the following steps of: alternately processing a MnCO3 micron square block by utilizing low-temperature calcining and pickling to form amorphous manganese dioxide with a micron frame structure, reducing at a low temperature by utilizing LiI, calcining in vacuum and crystallizing to form a micron frame of LiMn2O4. By means of the method, the prepared material has a hollow structure so shat a stress generated during the intercalation / de-intercalation of Li is weakened and the stability of the material is high and has a porous structure to provide electron / ion channels; a distance of the Li intercalation / de-intercalation is shortened by utilizing a nanoscale frame wall, thereby enhancing dynamic rate of Li intercalation / de-intercalation, improving multiplying power and cycle performances of the material, and effectively preventing phenomena that nanometer materials aggregate, pass through diaphragm and the like in a reaction; and the size and the distribution of pore diameter can be controlled by utilizing differences of calcining conditions and pickling conditions so that the lithium ion battery cathode materials suitable for different needs are easy to prepare. The method for preparing the micron frame-shaped manganese series lithium ion battery cathode material has the characteristics of simple operation, low energy consumption and the like and is suitable for large-scale preparation and production.
Owner:TSINGHUA UNIV
Liquid crystal polyester resin complex with low dielectric constant and preparation method of liquid crystal polyester resin complex
ActiveCN106633860ALow dielectric constantImprove mechanical propertiesLiquid crystal compositionsHydroxylamineHydroxylamine Hydrochloride
The invention provides a liquid crystal polyester resin complex with low dielectric constant. The liquid crystal polyester resin complex is prepared from components in parts by weight as follows: 60-90 parts of liquid crystal polyester resin, 1-10 parts of an additive and 10-40 parts of filler, wherein the liquid crystal polyester resin adopts wholly aromatic liquid crystal polyester resin which is formed by polymerizing reaction monomers, and the reaction monomers comprise at least one of free aromatic diamine and aromatic hydroxylamine, aromatic hydroxycarboxylic acid or aromatic aminocarboxylic acid, aromatic glycol and aromatic dicarboxylic acid; the additive adopts UHMWPE (ultra-high-molecular-weight polyethylene), and the number-average molecular weight of the UHMWPE is 1.15-5.9 million.
Owner:JIANGSU WATER SPECIAL MATERIAL MFG CO LTD
Nitride near infrared fluorescent material and light emitting device containing same
ActiveCN109370587AHigh chemical stabilityImprove external quantum efficiencyLuminescent compositionsSemiconductor devicesPolymer chemistryFluorescent materials
The invention provides a nitride near infrared fluorescent material. The chemical formula of the material is AxMyBzSi5N8: (aEr, bEr, cR), wherein A is selected from one or two of La, Lu and Y; M is selected from at least one of Ca, Sr and Ba; B is selected from one of Li, Na and K; and T is selected from one of Yb and Pr; in the AxMyBzSi5N8: (aEr, bEr, cR), the value ranges of x, y and z meet thefollowing conditions: x is greater than or equal to 0.1 but less than or equal to 0.2, y is greater than or equal to 1.6 but less than or equal to 1.915, and z is greater than or equal to 0.1 but lessthan or equal to 0.2; and the value ranges of a, b and c meet the following conditions: a is greater than or equal to 0.1 but less than or equal to 0.1, b is greater than or equal to 0.05 but less than or equal to 0.1 and c is greater than or equal to 0.005 but less than or equal to 0.03.
Owner:XUYU OPTOELECTRONICSSHENZHEN CO LTD
Forging processing method for TC32 titanium alloy large specific bar
ActiveCN112676503APrecise regulationSolve the problem of poor toughness matchingMetal-working apparatusMetallurgyTitanium alloy
The invention relates to the technical field of titanium alloy forging, in particular to a forging processing method for a TC32 titanium alloy large specific bar. The method comprises the steps: performing recrystallized homogenized forging after cogging forging; then performing forging at a beta transition temperature; and finally, forging a product. Tissues are regulated and controlled precisely to obtain needed mechanical properties. The consistence of flaw detection level of the bar is improved. The obtained tissues and performance are uniform, and the yield is improved.
Owner:湖南湘投金天钛业科技股份有限公司
Method for controlling state of touch screen, touch screen, and portable touch terminal
ActiveUS20160085360A1Low costSatisfies peopleDigital data processing detailsInput/output processes for data processingCapacitanceComputer terminal
A method for controlling a state of a touch screen is provided. The touch screen includes a touch sensor and the touch sensor includes multiple touch nodes, the control method including the following steps: S1. detecting that detected capacitance values of touch nodes in a preset particular region on the touch sensor uniformly change within a preset time length; S2. obtaining a quantity of touch nodes whose change in the detected capacitance value is greater than a preset detected capacitance threshold value; and S3. when the quantity of touch nodes whose change in the detected capacitance value is greater than the preset detected capacitance threshold value is greater than a preset quantity, controlling the touch screen to perform state switching. The control method is simple and convenient and does not require any complex detection circuit. A touch screen and a portable touch terminal having the touch screen are also provided.
Owner:SHENZHEN GOODIX TECH CO LTD
Rhododendron lapponicum garden planting and management method
InactiveCN106212182APractical cultivation methodPractical management methodsFertilising methodsPlant cultivationDiseaseShoot
The invention provides a Rhododendron lapponicum garden planting and management method. The Rhododendron lapponicum garden planting and management method includes cutting shoot seedling raising, and planting and management. The cutting shoot seedling-raising includes: taking vegetative shoots of Rhododendron lapponicum as cutting shoots to perform cutting propagation in early autumn, and performing transplanting after the cutting shoots grow into complete seedling plants. The planting and management includes: planting the seedlings of the Rhododendron lapponicum in a semi-shade environment at the temperature of 10-25 DEG C and the humidity of 70-90%; and controlling the planting environment in a growth environment of the Rhododendron lapponicum according to change of seasons and an environment condition during planting, and regularly performing pruning, watering, fertilizing and disease and pest control management. The Rhododendron lapponicum garden planting and management method is feasible, and can achieve large-scale garden planting of the Rhododendron lapponicum.
Owner:HUAYUAN LANDSCAPE ARCHITECTURE CO LTD
Belt-pressure high-precision quantitative feeding system
The invention relates to a belt-pressure high-precision quantitative feeding system, which comprises a reaction tank, a liquid level control loop, a pressure control loop, a flow control loop and a temperature display and control device, wherein the liquid level control loop is used for monitoring and adjusting the liquid level height in the reaction tank; the pressure control loop is used for monitoring and adjusting the pressure in the reaction tank; the flow control loop is used for monitoring and adjusting the discharge amount of the reaction tank; the temperature display and control device is used for displaying the temperature in the reaction tank and adjusting the charging temperature; a material outlet is formed at the bottom of the reaction tank; the top of the reaction tank is communicated with a feeding pipeline; a feeding pump is arranged on the feeding pipeline; a liquid level measurer in the liquid level control loop, a pressure sensor in the pressure control loop, and a temperature sensor in the temperature display and control device are all arranged in the reaction tank; a flow meter in the flow control loop is arranged at the material outlet of the reaction tank. The belt-pressure high-precision quantitative feeding system can comprehensively monitor the feeding process, the control way is simple and quick, the quantitative precision is substantially improved, the quality of finished materials is improved, and manpower and reaction materials are saved.
Owner:SHAANXI UNIV OF SCI & TECH
Stable compound lithium ion battery negative electrode material alpha-Ga2O3 and preparation method thereof
ActiveCN107732221ALow preparation temperatureSintering conditions are simpleCell electrodesHexamethylenetetramineActive component
The invention provides a stable compound lithium ion battery negative electrode material, and the active component of the material comprises alpha-Ga2O3. Alpha-Ga2O3 is composed of a great amount of micrometer cubes, the length of cubes is 1-1.5 [mu]m, and the width and height are in a range of 200-800 nm. The preparation method comprises the following steps: adding gallium nitrate, hexamethylenetetramine, sodium sulfate, and citric acid into a container, adding deionized water, stirring until all components are dissolved; transferring the solution to a hydrothermal inner container, adding deionized water; fixing the inner container, carrying out hydrothermal reactions in a blowing drying oven to obtain a precursor; drying the precursor, and sintering the precursor in a tubular furnace toobtain alpha-Ga2O3. The alpha-Ga2O3 can be used to prepare a lithium ion battery negative electrode and has very good electrochemical characteristics and a wide application prospect.
Owner:CHINA THREE GORGES UNIV
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