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62results about How to "Control thickness" patented technology

Space-adjustable coating head for vertical coating machine

ActiveCN224114368UEasy to adjust the distanceDosage controlLiquid surface applicatorsCoatingsElectric machineStructural engineering
The utility model relates to the technical field of vertical coating machines, and discloses a distance-adjustable coating head for a vertical coating machine, which comprises a base, the front end of the base is fixedly connected with a motor I, the driving end of the motor I is connected with a connecting plate through a lifting component so as to drive coating rollers on two sides to adjust the distance, and the connecting plate is connected with a motor II through a lifting component. The inner ends of the connecting plates are rotationally connected with rotating cylinders, the inner walls of the rotating cylinders are slidably connected with pulling plates, the bottom ends of the pulling plates are connected with coating rollers through buckle assemblies so as to be used for disassembling and assembling the coating rollers, the inner wall of the connecting plate on the front side is fixedly connected with a second motor, and the driving end of the second motor is fixedly connected to the front end of the rotating cylinder on the front side. According to the utility model, the coating rollers on the two sides are driven to lift, so that the distance between the coating rollers on the two sides is convenient to adjust, the use amount of paint and the thickness of a coating are effectively controlled, the thickness of the coating is ensured to accord with the accurate specification of a product, and the performance, the stability and the quality of the product are improved.
Owner:GLARUI NEW MATERIALS (SUZHOU) CO LTD

Composite current collector for zinc-iodine battery, preparation method thereof and zinc-iodine battery

The application provides a composite current collector for a zinc-iodine battery, a preparation method thereof and a zinc-iodine battery, and provides a conductive plastic substrate as a support layer; a metal conductive layer is formed by depositing titanium on at least one side surface of the conductive plastic substrate by using a magnetron sputtering technology, so that the composite current collector for the zinc-iodine battery is obtained. The application realizes the synergistic improvement of the light weight and the corrosion resistance of the current collector.
Owner:XI AN JIAOTONG UNIV

A method for manufacturing a gypsum nog

The present application relates to a kind of preparation methods of gypsum keel, the method is in the scheduling, monitoring of joint operation center with two production lines according to different technical routes to produce the gypsum keel of same quality.Solve the problem of the easy rust corrosion of light steel keel, steel plate rib web, the difficulty of marking bar, the insufficient strength, pressure resistance and impact resistance of column body in the spray construction type composite wall.
Owner:SHANGHAI KENAI NEW MATERIAL TECH CO LTD

Gum dipping mechanism for processing environment-friendly bowling lane plate

The utility model discloses an impregnation mechanism for processing an environment-friendly bowling lane plate, which comprises a base, a motor I fixedly connected to the side surface of the base, a conveying shaft I fixedly connected to the output end of the motor I, a motor II fixedly connected to the side surface of the base, and a conveying shaft II fixedly connected to the output end of the motor II. The inner side face of the base is rotationally connected with a second auxiliary shaft, the side surface of the base is fixedly connected with a third motor, the output end of the third motor is fixedly connected with a third conveying shaft, the side surface of the base is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a screw, and the side surface of the screw is in threaded connection with a sliding block. The side surface of the sliding block is rotationally connected with a rotating roller. Through the components, after the decorative paper is conveyed to the impregnation pool in the base for impregnation, the rotating roller rotates along the surface of the decorative paper to enable the glue solution to be evenly smeared, then the distance between the rotating roller and the third conveying shaft is adjusted through the servo motor, the screw rod and the sliding block, and the thickness of the glue solution can be conveniently controlled according to actual requirements.
Owner:CHANGZHOU TIANRUN WOOD IND CO LTD

Cable copper core high-uniformity wrapping device based on winding thickness automatic control

ActiveCN224123195UEasy to limitAvoid affecting the wrapping effectCable/conductor manufactureDrive wheelElectric machine
The utility model discloses a cable copper core high-uniformity wrapping device based on winding thickness self-control, relates to the technical field of wrapping device structures, and aims to solve the problem that the wrapping effect of a cable copper core is affected due to the fact that the cable copper core cannot be conveniently limited when the cable copper core is wrapped by an existing wrapping device. According to the technical scheme, the wrapping machine comprises a base, a wrapping device is installed above the base, a driven wheel is installed on one side of the outer wall of the wrapping device, a driving wheel is installed below the driven wheel, a rotating device is installed at the front end of the wrapping device, a first supporting frame is installed on one side of the wrapping device, and a second supporting frame is installed on the other side of the wrapping device. A rotating disc is mounted on one side of the first supporting frame, a mounting frame is mounted on one side of the rotating disc, a second motor is mounted in the mounting frame, a rotating shaft is mounted at one end of the second motor, a baffle is mounted on one side of the rotating shaft, and a fixing device is mounted on one side of the first baffle.
Owner:GUANGDONG NANYANG CABLE CO LTD

Isolation and interconnection based copolymer organic semiconductor devices and methods of fabrication

The application discloses a kind of copolymer organic semiconductor devices based on isolation and interconnection and preparation method, including substrate, photoetching blocking layer, insulating isolation layer, N organic field effect transistor and N-1 interconnection line;Photoetching blocking layer includes isolation layer and inorganic dielectric layer;Isolation layer is opened with N longitudinal through isolation groove along length direction;Inorganic dielectric layer includes lower dielectric layer and upper dielectric layer;Lower dielectric layer is located in N isolation, and upper dielectric layer is laid on the top of isolation layer and lower dielectric layer;Each organic field effect transistor includes semiconductor layer, source, drain and gate;Semiconductor layer is laid in the isolation groove at the bottom of corresponding lower dielectric layer section, and its material is organic copolymer.The application effectively utilizes isolation groove and photoetching blocking layer, and the semiconductor layer of different semiconductor materials is wrapped and isolated, so as to realize the integration of different organic field effect transistors on the same substrate, and the organic field effect transistor can realize effective interconnection.
Owner:NANJING UNIV OF POSTS & TELECOMM +1

Rotor assembly, motor and vehicle

The utility model provides a rotor assembly, a motor and a vehicle, and belongs to the technical field of motors. The rotor assembly comprises a hollow shaft; the corner jig is arranged on the hollow shaft in a sleeving mode, the inner diameter of the corner jig is larger than the outer diameter of the hollow shaft, and a plurality of sets of hollow holes are formed in the corner jig in the axial direction of the hollow shaft; the plurality of hollow holes in each group of hollow holes are distributed at intervals along the circumferential direction of the hollow shaft; and the plurality of magnetic steels are respectively embedded into the hollow holes in a one-to-one correspondence manner and are fixed on the hollow shaft, so that the corner jig is fixed on the hollow shaft. The rotor assembly reduces the influence of the press-fitting iron core on the size of the hollow shaft, and improves the precision of the hollow shaft.
Owner:SHANGHAI FUTIAN ELECTRIC TECH

Floor system core mold structure convenient to pour

The utility model discloses a floor system core mold structure convenient to pour, which relates to the field of floor system plate construction, and adopts the technical scheme that the floor system core mold structure comprises a plurality of groups of hollow mold boxes, each group of hollow mold boxes comprises two cuboid mold boxes which are independently distributed in parallel and a plurality of connecting pieces, and two cushion columns are respectively arranged at the bottom of each cuboid mold box; a gap is reserved between the opposite inner side walls of the two cuboid mold boxes, the opposite inner sides of the two cuboid mold boxes are provided with an isolation column and a positioning groove respectively, and the end of the isolation column of one cuboid mold box is matched with the positioning groove of the other cuboid mold box; a plurality of clamping grooves are formed in the tops or the side portions of the two cuboid mold boxes respectively, hooks hung in the clamping grooves are arranged at the two ends of the connecting pieces respectively, and the cuboid mold boxes in the same group are tensioned together through the connecting pieces. Due to the fact that the gap is reserved in the middle, air can be exhausted smoothly, hollowing in the middle is avoided, the construction quality is improved, the gap between the two cuboid mold boxes can form a rib supporting structure, and the supporting strength is improved.
Owner:CHONGQING HEBANG ENVIRONMENTAL PROTECTION TECH CO LTD

Catheter

PendingCN121775290AImprove mechanical propertiesImprove delivery capacityMedical devicesCatheter
The invention provides a catheter, which at least comprises a polymer layer, the polymer layer at least comprises a transition structure, the transition structure is a tubular structure, the transition structure comprises a single material area and a mixed material area, any one continuous closed area in the single material area is called as a first sub-area, and any one continuous closed area in the mixed material area is called as a second sub-area. Any one continuous closed area in the mixed material area is called as a second sub-area, any section of the transition structure in the axial direction comprises at least one second sub-area, and the starting section or the ending section of the transition structure comprises at least one first sub-area and at least one second sub-area; the edge of one end of the mixed material area is an inclined surface which forms an inclination angle with the axial direction of the conduit, and the edge of the other end is a right-angle surface perpendicular to the axial direction of the conduit.
Owner:MICROPORT NEUROTECH SHANGHAI

Adjustable special-shaped module forming die

The utility model relates to the technical field of special-shaped module forming dies, and discloses an adjustable special-shaped module forming die which comprises a lower die pressing plate, an upper die pressing plate is arranged above the lower die pressing plate, a base plate and the lower die pressing plate are arranged between the lower die pressing plate and the upper die pressing plate, two lower inlaying holes are formed in the bottom face of the lower die pressing plate, and two lower inlaying holes are formed in the bottom face of the lower die pressing plate. An upper inlaying hole is formed in the top face of the upper mold pressing plate, and a cushion groove is formed in the lower inlaying hole. According to the utility model, the gasket is arranged at the position of the gasket groove, so that the thinner extension part of the lower insert is cushioned on the gasket, and the distance between the radiating fin and the lower insert surface is adjusted by increasing or reducing the gasket, thereby controlling the thickness of the radiating fin, and effectively preventing the problem that the thickness of the radiating fin is difficult to determine due to larger production tolerance of a substrate; the problems that the radiating fins cannot be exposed when being too thin, the radiating performance is influenced, and the radiating fins are too thick to extrude the components, and the components are damaged are solved.
Owner:SHANDONG SENSPIL SEMICON CO LTD

Electromechanical engineering wire cutting device

The utility model relates to the technical field of mechanical and electrical engineering line cutting technology discloses a kind of mechanical and electrical engineering line cutting device, including workbench, mobile groove is set in workbench side, two groups of line cutting knives are installed in mobile groove by pushing assembly, line cutting groove is set in the middle of two groups of line cutting knife inboard, and wire is distributed between two groups of line cutting groove.The utility model technical scheme is rotated by driving second motor to drive bidirectional screw, and the moving block of thread connection on the two sides of bidirectional screw can push line cutting knife on mounting frame synchronous center movement, wire is cut, and when operator needs to remove the outer wall of wire, the thickness of two groups of line cutting knife can be controlled to wire cutting, after waiting two groups of line cutting knife cutting to wire outer skin, first motor is driven again to drive second transmission gear reverse rotation, clamping wire reverse movement can make two groups of line cutting knife cutting wire outer skin automatically from wire separation.
Owner:郓城旭阳能源有限公司

Solid-state electrolyte-lithium assembly, method of making the same, and solid-state battery comprising the same

Disclosed are a solid-state electrolyte-lithium assembly, a preparation method thereof, and a solid-state lithium battery comprising the same. The solid-state electrolyte-lithium assembly comprises: a solid-state electrolyte having a first major surface and an opposite second major surface, wherein at least the first major surface has a plurality of uniformly sized holes arranged in an array form, the spacing between adjacent holes is no more than 10 microns, the distribution density of the holes is 10 5 ‑10 9 cm 2 −1, and the depth of the holes does not penetrate to the opposite surface; and a layer of metallic lithium or lithium alloy compounded on the first major surface, the metallic lithium or lithium alloy filling the holes on the first major surface and forming a layer with a thickness of 1-100 microns on the first major surface. The solid-state electrolyte-lithium assembly of the present application can greatly reduce the interface impedance between the solid-state electrolyte and the metallic lithium.
Owner:CHINA ENERGY LITHIUM

Automobile trunk lid

The utility model relates to an automobile trunk lid which comprises a trunk lid outer plate. The trunk lid inner plate is fixed on the inner side of the trunk lid outer plate; the hinge reinforcing plates are arranged on the two sides of the trunk lid inner plate; the lock catch reinforcing plate is arranged at the bottom of the trunk lid inner plate; the structural adhesive is arranged between the trunk lid outer plate and the trunk lid inner plate and used for connecting the trunk lid outer plate and the trunk lid inner plate; the glue blocking ribs are arranged on the two sides of the structural glue. Compared with the prior art, the utility model has the advantages of effectively controlling the thickness of the structural adhesive, ensuring the connection strength and the sealing property of the product and the like.
Owner:YANFENG PLASTIC OMNIUM SHANGHAI AUTOMOTIVE EXTERIOR SYST CO

An infrared camouflage composite yarn, its preparation method and application

ActiveCN117802650BReduce or even avoid transfersReduce or even avoid structureYarnYarnAl powder
This invention discloses an infrared camouflage composite yarn, its preparation method, and its application. The preparation process involves first preparing a preform, then dispersing aluminum powder and tin-doped indium oxide powder on a softened film to form an infrared-resistant film. The infrared-resistant film is then coated onto the preform using a layered structure design to prepare a composite preform. Combined with heat treatment, the yarn is then hot-stretched to obtain the improved infrared camouflage composite yarn. The infrared camouflage composite yarn prepared by this invention not only possesses excellent infrared camouflage capability and durability, but the addition of functional particles does not significantly affect the yarn's mechanical properties, such as breaking strength. The functional particles maintain uniform dispersion, improving the uniformity of infrared camouflage performance. This method is suitable for preparing infrared camouflage products, such as military jackets, tents, and backpacks.
Owner:苏州市意轩坤纺织整理有限公司

A magnetron system for large area thin film production

ActiveCN117344279BChange deposit spot sizeThe concentration of argon atoms increasesVacuum evaporation coatingSputtering coatingSputteringReactive gas
This invention belongs to the technical field of magnetron sputtering thin film deposition and discloses a magnetron sputtering system for large-area thin film preparation. The magnetron sputtering system includes a deposition substrate and a moving target, with the substrate and target positioned opposite each other. The moving target includes a target material, a gas supply ring, and a dynamic magnet. The target material is connected to an electric field cathode, making it the cathode target for magnetron sputtering. The gas supply ring provides reactive gas to the area around the target material. The dynamic magnet, located within the moving target, provides an adjustable magnetic field around the target material. When the center of the moving target is on the same horizontal line as the center of the deposition substrate, the magnetic field range is minimized, resulting in the smallest deposition spot area on the substrate. As the moving target moves away from the center of the deposition substrate along its radius, the magnetic field range gradually increases, and the deposition spot area on the substrate gradually increases. This invention solves the problem of difficulty in controlling the deposition uniformity in large-area thin film preparation in existing technologies.
Owner:HUAZHONG UNIV OF SCI & TECH

An electronic component uniform coating device

PendingCN122665723APrecisely adjust the fit gapcontrol thickness
This invention relates to the field of coating technology and discloses a uniform coating device for electronic components, including a frame, a mounting beam, a coating assembly, a guide roller assembly, and a chip collection and conveying assembly. The mounting beam is fixedly installed on the upper part of the frame, and the coating assembly is fixedly installed on the mounting beam for coating electronic components. This uniform coating device uses a doctor blade that closely contacts the outer surface of the coating roller. During the rotation of the coating roller, excess, floating, and accumulated slurry on the roller surface is scraped off in real time, leaving only a quantitative thin layer of slurry within the doctor blade gap for coating. Simultaneously, an adjustable fixing seat at the end allows for fine-tuning and locking of the doctor blade installation spacing and clamping force. Operators can precisely adjust the fit gap between the doctor blade and the coating roller according to process requirements, thereby controlling the thickness of the coating on the roller and avoiding problems such as material accumulation, thick edges, and slurry clumping.
Owner:XUZHOU KANGZHIHONG ELECTRONICS CO LTD

Waterproof membrane sound transmission assembly

ActiveCN224192008UShorten the processing flowcontrol thicknessTransducer detailsSilicone tapeAcrylic adhesive
The utility model provides a waterproof membrane sound transmission assembly, which comprises a dustproof gauze, a connecting adhesive tape, a waterproof sound transmission membrane and a bonding layer, the dustproof gauze and the waterproof sound transmission membrane are bonded together through the connecting adhesive tape, the waterproof sound transmission membrane is bonded on an acoustic product through the bonding layer, a support material layer is bonded on the upper surface of the dustproof gauze, and the bonding layer is an AB double faced adhesive tape. The surface A of the AB double-faced adhesive tape is silica gel, the surface B of the AB double-faced adhesive tape is acrylic adhesive, the silica gel of the surface A is bonded with the acoustic product, and the acrylic adhesive of the surface B is bonded with the waterproof sound-transmitting film. The bonding layer is the AB double-faced adhesive tape, a traditional multi-layer structure is replaced, the processing flow can be reduced, and the thickness of the product can be better controlled; meanwhile, the dustproof gauze and the supporting material layer are additionally arranged outside the waterproof sound-transmitting membrane, the dustproof gauze has a good dustproof effect, pollution of dust to the waterproof sound-transmitting membrane can be effectively reduced, impact force is effectively reduced when water flow impact exists, and the waterproof effect is improved.
Owner:SUZHOU XIAOYIJIA PHOTOELECTRIC TECH CO LTD

A high-efficiency gluing machine for corrugated paperboard production

ActiveCN224687190Ueasy to transportEasy to flattenPaperboardAdhesive glue
The utility model belongs to corrugated paperboard production technical field, specifically is a kind of corrugated paperboard production efficient gluing machine, including conveying frame, the inside of conveying frame is provided with conveying belt, the upper end of conveying frame is provided with rack, another side of the upper end in rack is equipped with installation rail, the surface of installation rail is movably equipped with two sliding seats, the lower end of sliding seat is installed with glue spraying frame, the inside of glue spraying frame is movably installed with moving plate, the upper end of moving plate is installed with telescopic link, the lower end of moving plate is installed with glue nozzle, when glue falls on the corrugated paperboard of conveying belt by glue nozzle, after scraping plate, glue can be scraped into the same thickness, it is convenient for better adhesion in later period, prevent the uneven glue on the surface of corrugated paperboard, affect adhesion effect, rotate lifting screw simultaneously, under the action of screw thread, along lifting screw and slide bar moving block moves, it is convenient for adjusting the height of scraping plate lower end, it is convenient for the thickness control of glue.
Owner:CHONGQING SHUNLIYONG PAPER PROD PACKAGING CO LTD

Tea cake forming device for green tea processing

ActiveCN224234630UOvercome the problem of tea loose cake easily occurringQuick ejectionPre-extraction tea treatmentFood shapingGreen teasProcess engineering
The utility model relates to a tea cake forming device for green tea processing, in particular to the technical field of tea processing equipment. Comprising a bottom plate, a mounting block, a clamping mechanism, a pressing block, a cake pressing cylinder, a cake pressing bottom plate and a push plate. The tea cake pressing device solves the problem that an existing tea cake pressing device cannot automatically take materials, so that the tea cake scattering phenomenon is likely to happen. And an existing tea cake forming device is difficult to meet the processing requirements of tea cakes with different specifications.
Owner:FUJIAN NINGDE CHIXI TEA CO LTD

Transparent grinder with integrated grinding cover structure

The utility model particularly relates to a grinder with a transparent integrated grinding cover structure, which comprises an upper grinding cover and a lower grinding cover, the upper grinding cover and the lower grinding cover are fixedly mounted in a matched manner through a positioning buckle, the upper grinding cover rotates on the lower grinding cover, a grinding core is arranged in the upper grinding cover, and the upper grinding cover and the lower grinding cover are fixedly connected through the positioning buckle. A thickness adjusting screw and a thickness adjusting nut are arranged in the middle of the grinding core, and the thickness adjusting screw is in threaded connection with the thickness adjusting nut and used for adjusting a gap between the thickness adjusting nut and the grinding core. The utility model has the advantages of simple structure, few accessories and lighter whole set of product. The product is lower in cost, basically has no selectivity on grinding contents and is wider in application, the grinding process is visualized by arranging the transparent grinding lower cover, a user can visually observe the material grinding state, and the interestingness and practicability of the product are improved.
Owner:YANGJIANG HENGMAO PACKAGING PROD CO LTD

A laying device for chopped glass fiber mat

ActiveCN224477646Ucontrol thicknessThickness is easy to control
The utility model provides a kind of cloth device for glass fibre short cut felt, it is related to glass fibre short cut felt production and processing technical field, the cloth device for glass fibre short cut felt includes blanking mechanism, transfer mechanism, transfer mechanism is used to receive the glass fibre conveyed from blanking mechanism, and received glass fibre is transferred to the position of base cloth;Cloth mechanism, cloth mechanism is used to receive the glass fibre conveyed by transfer mechanism, simultaneously, glass fibre is scattered on base cloth by vibrating mode, this kind of cloth device, quantitative glass fibre conveying belt guide plate can be transmitted, and by controlling the continuous vibration of guide plate, glass fibre on guide plate can be evenly clothed to base cloth, simultaneously, glass fibre can also be actively conveyed by conveying belt, the thickness of cloth is conveniently controlled, glass fibre is not needed to be filled to base cloth by special staff, and use effect is good.
Owner:JIAXING HONGYU NEW MATERIALS CO LTD

A high-precision bearing assembly and its manufacturing system

This invention discloses a high-precision bearing assembly and its manufacturing system. The high-precision bearing assembly includes an outer ring, an inner ring, and balls, and also includes an insert that is inserted into the inner ring. The insert has a fixed insertion part, and the inner ring has a slot. The insertion part is inserted into the slot. Both the inner ring and the insert have positioning holes, and the positioning holes are connected after the insert is inserted into the inner ring. During assembly, the inner ring is placed inside the outer ring, and the balls are inserted through the hole at the position of the insert on the inner ring. Then, the insert is inserted into the inner ring, and a fixing pin is inserted into the positioning hole connecting the insert and the inner ring. The fixing pin is then tightened with a nut to fix the insert. This fixes the insert. When the insert is inserted into the inner ring, the insertion part is connected to the slot, which improves the stability of the fixing pin when it is inserted into the positioning hole, thus preventing damage to the raceways of the inner and outer rings during ball assembly.
Owner:YANGZHOU JIUYING PRECISION SPINDLE CO LTD

Processing method of aluminum oxide electrostatic chuck

PendingCN121930025Aconsistent thicknessGuaranteed welding effectOxide ceramicElectrically conductive adhesive
The invention discloses a processing method of an aluminum oxide electrostatic chuck, and aims to overcome the defect that the connection failure is easy to occur when the electrostatic chuck is used for a long time. The method comprises the following steps: S1, selecting two substrates, and processing a high-voltage electrode groove on one substrate; s2, coating bonding slurry on the surface of a substrate close to the edge, and drying; s3, the two substrates are attached together and assembled into a furnace, diffusion welding is achieved after the slurry is heated, the two substrates are connected into a disc body, and an electrode cavity is formed in the high-voltage electrode groove; s4, conducting resin is poured into the electrode cavity in a vacuum mode. According to the processing of the electrostatic chuck, high-strength integration of the aluminum oxide ceramic and the internal conductive adhesive functional layer is realized, the problem of connection failure of the electrostatic chuck caused by decomposition or aging of an adhesive at a high temperature is avoided, the overall performance of the electrostatic chuck is improved, and the service life of the electrostatic chuck is prolonged.
Owner:HANGZHOU ZHIXIN SEMICON CO LTD

Vertical lifting device of trolley clamping mechanism of glue binding machine

The utility model relates to the technical field of book cementing equipment, in particular to a vertical lifting device of a cementing machine trolley clamping mechanism, which comprises a first clamping plate, a second clamping plate, a driving component, a lifting component and a lifting component, the driving component is used for driving the second clamping plate to be close to or far away from the first clamping plate, and the lifting component is used for lifting the second clamping plate. The clamping power part drives the first push-pull part and the second push-pull part to drive the second clamping plate to slide along the supporting rod, so that the second clamping plate is close to or far away from the first clamping plate, and therefore books are clamped, consistency of synchronous clamping and uniformity of clamping force are guaranteed. Therefore, the cementing effect is improved; a lifting motor drives a second bevel gear to rotate to drive a lifting screw rod to rotate, so that a linkage block moves along the lifting screw rod, lifting of a first clamping plate and a second clamping plate is achieved, and therefore the thickness of a book glue layer is controlled.
Owner:马国明

A rough carbon shell coated with Fe 3 O 4 Catalyst preparation methods and their application in the electrocatalytic reduction of nitrate to ammonia

This invention provides a rough carbon shell coated with Fe 3 O 4 The preparation method of the catalyst and its application in the electrocatalytic reduction of nitrate to ammonia. The preparation method includes the electrocatalytic reduction of Fe at room temperature. 3 O 4 Nanospheres or their dispersions, phenol, aldehyde solutions, fatty amines, and ammonia are added to a solvent and stirred to induce a reaction. After the reaction, the mixture is heated for aging. Following magnetic separation, washing, drying, and carbonization, a rough carbon shell coated with Fe is obtained. 3 O 4 Catalyst; Phenol: Fe 3 O 4 The molar ratio of nanospheres is 1:(0.5–1.5); the concentration of the aldehyde solution is 10–85 mM, and the addition rate is 0.5–2 mL / min. This invention rapidly prepares rough carbon shell-coated Fe using a simple solution synthesis method. 3 O 4 The catalyst, the conductivity of the carbon material shell and its ability to adsorb and enrich substrates enhance the Fe core. 3 O 4 The catalytic activity of nanoparticles; due to Fe 3 O 4 The synergistic effect of nanoparticles and a rough carbon shell coating enabled the prepared sample to effectively electrocatalytically reduce nitrate to ammonia.
Owner:DALIAN UNIV OF TECH

Boron nitride coated high-strength elastic ceramic nanowire aerogel as well as preparation method and application thereof

The invention discloses boron nitride coated high-strength elastic ceramic nanowire aerogel as well as a preparation method and application thereof, and belongs to the technical field of superelastic inorganic material preparation. Comprising the following steps: taking silicon carbide nanowire aerogel or silicon nitride nanowire aerogel as a framework, uniformly coating boron nitride on the surface of the framework by adopting a chemical vapor deposition method, and forming fixed boron nitride nodes between adjacent or contacted silicon carbide or silicon nitride nanowires. The strength of the prepared ceramic nanowire aerogel can reach 787.0 kPa, and the ceramic nanowire aerogel has good recovery capacity under the compression strain of 80% and is expected to be used as materials for high-temperature heat prevention and insulation, high-performance damping, heat sealing and the like in an extreme environment.
Owner:XI AN JIAOTONG UNIV

Human epidermal growth factor temperature-sensitive sustained-release gel and preparation method and application thereof

The invention discloses a human epidermal growth factor temperature-sensitive sustained-release gel as well as a preparation method and application thereof, and belongs to the technical field of biological pharmacy. The preparation method of the human epidermal growth factor temperature-sensitive sustained-release gel comprises the following steps: S1, adding poloxamer and a thickening agent into purified water, and uniformly mixing to form a gel matrix; s2, respectively preparing a human epidermal growth factor solution and a chitosan-sodium tripolyphosphate colloid, and adding the human epidermal growth factor solution into the chitosan-sodium tripolyphosphate colloid for adsorption to obtain the chitosan-sodium tripolyphosphate colloid loaded with the human epidermal growth factor; s3, adding the chitosan-sodium tripolyphosphate colloid loaded with the human epidermal growth factors, a humectant and a stabilizer into the gel matrix, and adjusting the pH value. The gel can realize stable loading and controllable slow release of the human epidermal growth factor, so that the administration frequency and repeated administration operation are reduced, and the gel has important application value in treatment of refractory wounds.
Owner:SHENZHEN WATSIN GENETECH +1