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Ground material for ground of ground throw field and preparation method of ground material
InactiveCN119663706AImprove sound insulationImprove creep resistanceSynthetic resin layered productsPaving detailsPolymer scienceInsulation layer
The invention belongs to the technical field of court ground materials, and particularly relates to a ground material of a ground throw court and a preparation method thereof. The ground material of the ground throwing field comprises the anti-skid surface layer, the elastic buffer layer and the sound insulation layer from top to bottom, and has excellent sound insulation, impact resistance and wear resistance. The polyvinyl butyral bonded acrylic sound insulation felt and the jute fiber board are used as a sound insulation felt composite material to be laid on the surface of the base layer, so that the sound insulation effect of the ground of the ground throwing field is enhanced, boric acid and phenylboronic acid are compounded to react with siloxane, and reinforced gel prepared by adding a reinforcing material has excellent shear hardening and thermal stability, so that the sound insulation effect of the ground of the ground throwing field is improved. An elastic reinforcing material is prepared by compounding alkali-treated straw fibers and a reinforcing body prepared by compounding the alkali-treated straw fibers and a hydrophobically modified sponge framework, and has remarkable creep resistance and excellent impact hardenability, and the esterified straw fibers prepared by reacting the alkali-treated straw fibers with citric acid are used as a toughening agent to be added into wear-resistant elastic microspheres prepared by rubber, so that the wear-resistant performance of the wear-resistant elastic microspheres is greatly improved. The material has excellent wear resistance, light weight and aging resistance.
Owner:GUANGZHOU JIAMU SPORTS DEV CO LTD
Migration-resistant anti-aging agent as well as preparation method and application thereof
PendingCN119661376AGood anti-aging performanceslow migrationOrganic compound preparationAmino compound preparationPtru catalystNitration
The invention relates to a migration-resistant anti-aging agent as well as a preparation method and application thereof, the method comprises the following steps: taking a substance as shown in a formula I and nitric acid as reactants, condensing H in an amino para-position group-CH-H and nitryl to obtain a nitrated substance, and carrying out hydrogenation reduction on the nitryl of the nitrated substance under the action of a catalyst to obtain an intermediate product. And carrying out hydrogenation on the intermediate product and ketone under the action of a catalyst to obtain a final product, namely the migration-resistant anti-aging agent II. The raw materials are convenient to purchase and transport, the product yield is high, the cost is low, the operation is simple, and the environmental pollution is small, so that the method has an industrial development prospect. # imgabs0 #
Owner:SHANDONG YANGGU HUATAI CHEM
Nickel-carbon conductive shielding foam
InactiveCN119662140AGuaranteed smoothnessImprove electromagnetic shielding performanceFilm/foil adhesivesMagnetic/electric field screeningPtru catalystCross linker
The invention provides nickel-carbon conductive shielding foam. The nickel-carbon conductive shielding foam sequentially comprises a conductive layer, foam, a bonding layer and an isolating layer from top to bottom, the foam comprises 25 to 40 parts of nickel-carbon nanotube-cerium oxide composite powder, 1 to 5 parts of an ionic liquid dispersant, 10 to 25 parts of organic silicone oil, 20 to 40 parts of silicone rubber, 5 to 10 parts of polyfuran, 5 to 10 parts of maleimide, 0.5 to 3 parts of a silane coupling agent, 0.01 to 0.1 part of a platinum catalyst and 0.2 to 1.5 parts of a cross-linking agent. The conductive foam can effectively restrain high-frequency electromagnetic interference generated in modern electronic equipment and ensure normal work of the equipment. A self-repairing system is constructed by adding polyfuran and maleimide. When the foam generates cracks under the action of mechanical stress or thermal cycle in the using process, the self-repairing material can automatically repair a conductive network through a reverse Diels-Alder reaction, and the shielding performance and the conductivity of the material are recovered.
Owner:SUZHOU WANHE ELECTRONICS CO LTD
Embedded steel bar connecting sleeve and assembly thereof
The utility model discloses a pre-embedded steel bar connecting sleeve and component, the connecting sleeve comprises a sleeve body, the sleeve body comprises a plurality of sections of cylindrical inverted cone-shaped circular truncated cones which are integrally formed, and a transition cone-shaped step of which the diameter is small at the upper part and large at the lower part is arranged at the connecting position of two adjacent cylindrical inverted cone-shaped circular truncated cones. The outer surface of the cylindrical inverted-cone-shaped circular truncated cone on the sleeve is in an inverted cone shape, compared with a sleeve with the circular surface, the contact area between the sleeve and concrete can be increased, the binding force and the bond stress between the sleeve and the concrete are improved, and the uplift resistance between the sleeve and the concrete can be improved through the transition cone-shaped step with the diameter being small in the upper portion and large in the lower portion. And the stability of the embedded sleeve embedded in the concrete is ensured.
Owner:CHINA RAILWAY ENG CONSULTING GRP CO LTD +1
Anti-aging cable
ActiveCN222600530UGood insulation performanceGood anti-aging performanceClimate change adaptationInsulated cablesStructural engineeringElectric cables
The utility model relates to the technical field of cables, and discloses an anti-aging cable which comprises a shell body, eight air bags are evenly and fixedly arranged on the inner side of the shell body, sliding blocks are fixedly arranged on the opposite sides of every two of the eight air bags, coils are fixedly arranged on the inner sides of the eight air bags, and four wires are arranged on the inner sides of the coils. The shell body comprises an inner protective layer, a waterproof layer is arranged at the lower end of the inner protective layer, a base layer is arranged at the lower end of the waterproof layer, and an outer protective layer is arranged at the lower end of the base layer. According to the anti-aging cable, the air bag in the middle of the anti-aging cable can increase resistance when the cable is extruded, the sliding blocks can maintain the air bag, protect the cable and reduce cable damage, the cable is provided with a plurality of protective layers, and the protective layer material has an anti-aging effect, can insulate heat, water and insulate, and can prolong the service life of the cable; the cable can be better protected, and resource waste is reduced.
Owner:ZHEJIANG OUMEI CABLE TECH CO LTD
Deep protection operating lever
ActiveCN222636547UImprove convenienceRealize card connectionControlling membersStructural engineeringMechanical engineering
The utility model relates to the technical field of operating levers, in particular to a deep protection operating lever. The dust-proof device comprises a mounting seat assembly, a swing rod assembly and a dust-proof cover mounted between the swing rod assembly and the mounting seat assembly, the mounting seat assembly comprises a fixed base for mounting the swing rod assembly and a base mounted at the bottom of the fixed base, and a circuit board is mounted at the bottom of the inner side of the base. The circuit board is fixed on the base, the upper surface of the circuit board and a mounting gap between the circuit board and the base are wrapped with a lower protective glue layer, the bottom of the fixed base is provided with an inwards-concave mounting glue injection groove with a downward groove opening, the Hall chip is fixed in a groove cavity of the mounting glue injection groove, and an upper protective glue layer is arranged at a gap between the Hall chip and the groove cavity of the mounting glue injection groove. The Hall chip is connected with the circuit board through a flexible printed circuit (FPC). According to the utility model, even if the dustproof cover is damaged, good waterproof and dustproof effects on the circuit board and the Hall chip can still be maintained.
Owner:SHANGHAI JINGCHUAN ELECTRONIC TECH CO LTD
Modified polytetrafluoroethylene sealing ring and preparation method thereof
PendingCN119613896AImprove mechanical propertiesGood anti-aging performanceGlass fiberTetrafluoroethylene
The invention relates to a modified polytetrafluoroethylene sealing ring and a preparation process thereof, and belongs to the technical field of polytetrafluoroethylene sealing rings. The composite material is prepared from the following raw materials in parts by weight: 70-85 parts of polytetrafluoroethylene, 10-15 parts of pretreated glass fibers, 15-25 parts of rubber-plastic alloy rubber, 5-9 parts of polystyrene, 3-5 parts of modified graphite, 3-5 parts of a wear-resistant agent, 5-10 parts of a reinforcing agent and 3-5 parts of a silane coupling agent. According to the invention, polytetrafluoroethylene is used as a substrate material, rubber-plastic alloy rubber and polystyrene are added to improve the mechanical properties of the material, and the modified graphite subjected to anti-aging treatment and the glass fibers subjected to modification treatment are added and combined with other raw materials, so that the mechanical properties of the material are improved. The polytetrafluoroethylene sealing ring with excellent aging resistance and wear resistance is prepared by mixing, melting, cold press molding and roasting.
Owner:NANJING HUAYAOLING TECHNOLOGY CO LTD
Unmanned aerial vehicle-mounted radar hanger structure with damping function
ActiveCN224075781UUniform supportUniform cushioningNon-rotating vibration suppressionAlighting gearMarine engineeringDamping function
The utility model discloses an unmanned aerial vehicle-mounted radar hanger structure with a damping function, which relates to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle body, a base net rack and a pull net rack. The base net rack is connected to the bottom surface of the unmanned aerial vehicle body through bolts, and the lower part of the base net rack is provided with a sunken upper mounting groove; the pull net rack is arranged below the base net rack, the edge of the pull net rack is connected with the base net rack through a plurality of elastic connecting pieces, the upper portion of the pull net rack is provided with a sunken lower installation groove, and the lower installation groove corresponds to the upper installation groove and is used for being connected with the airborne radar in a clamped mode. Through the elastic connecting pieces between the base net rack and the towing net rack and the elastic supporting pieces on the towing net rack, vibration and impact generated in the flying process of the unmanned aerial vehicle can be effectively absorbed and buffered, precise equipment such as airborne radar can be protected, the performance of the unmanned aerial vehicle is improved, and the service life of the unmanned aerial vehicle is prolonged.
Owner:NO 15 INST OF CHINA ELECTRONICS TECH GRP
An impact-resistant polyether ether ketone-based engineering plastic and a method for producing the same
The application relates to the technical field of high polymer materials, in particular to an impact-resistant polyether ether ketone-based engineering plastic and a preparation method thereof; the polyether ether ketone-based engineering plastic is prepared from the following raw materials in parts by weight: 90-140 parts of PEEK resin, 12-20 parts of carbon fibers, 8-15 parts of basalt fibers, 3-5 parts of a silane coupling agent, 6-10 parts of a compatilizer, 5-8 parts of a composite antibacterial agent, 1.5-2.5 parts of an antioxidant, 2-3 parts of a lubricant and 1.5-2 parts of N-phenyl maleimide; the polyether ether ketone-based engineering plastic prepared by the application not only has excellent antibacterial performance and impact resistance, but also has good anti-aging performance and wear resistance, thereby prolonging the service life of the polyether ether ketone-based engineering plastic to a certain extent and ensuring the quality of the polyether ether ketone-based engineering plastic.
Owner:TANGYUAN COUNTY HERITAGE ENG PLASTICS CO LTD
High-resolution transmission device for flexible flat cable (FFC)
ActiveCN224067973Usmooth entryRelieve bending stressRelieving strain on wire connectionFlat/ribbon cablesRubber materialControl theory
The utility model discloses an FFC flexible flat cable high resolution transmission device, which relates to the FFC flat cable technology field, and comprises a connector main body and an interface slot, the interface slot is provided with a flat cable main body, and the joint of the flat cable main body and the interface slot is provided with a flat cable protection mechanism. The flat cable protection mechanism comprises a contraction cylinder, a straight cylinder and an expansion cylinder which sleeve one end, close to the interface slot, of the flat cable main body, the contraction cylinder and the expansion cylinder are positioned on two sides of the straight cylinder and are arranged in a mirror image manner, and the longitudinal sections of the expansion cylinder and the straight cylinder are semicircles which are gradually reduced towards the straight cylinder; according to the utility model, a progressive protection channel is formed through the flat cable protection mechanism composed of the contraction cylinder, the straight cylinder and the expansion cylinder, the diameter of the inlet end of the contraction cylinder is large, flat cables can enter smoothly, and the semi-arc-shaped raised lines on the inner wall of the straight cylinder are made of elastic rubber materials, so that the frictional wear between the flat cables and the channel is reduced, and the service life of the flat cables is prolonged. And the outlet end of the expansion cylinder is gradually expanded, so that the bending stress of the flat cable is effectively relieved.
Owner:SHENZHEN WENXIN ELECTRONICS
Aromatic amine compound as well as preparation method and application thereof
ActiveCN119661377Ahigh molecular weightGood anti-aging performancePreparation by reductive alkylationPolymer sciencePlasticizer
The invention discloses an aromatic amine compound and a preparation method and application thereof.The aromatic amine compound is large in molecular weight, not prone to migration to the surface when used in rubber and other products, good in compatibility with rubber, not prone to blooming, good in anti-aging effect and capable of achieving the same or even better anti-aging effect compared with an existing anti-aging agent product, and the aromatic amine compound has the good anti-aging effect. The product can be used as an industrial anti-aging agent and a plasticizer.
Owner:SHANDONG YANGGU HUATAI CHEM
Polyphenyl ether modified EVA hot melt adhesive and preparation method thereof
InactiveCN119614102AImprove cohesionHigh mechanical strengthNon-macromolecular adhesive additivesMacromolecular adhesive additivesPolymer scienceHot melt
The invention relates to the technical field of polymer composite material processing, and discloses a polyphenyl ether modified EVA (Ethylene Vinyl Acetate) hot melt adhesive and a preparation method thereof. The hot melt adhesive is prepared from the following components in parts by weight: 35 to 50 parts of EVA (Ethylene Vinyl Acetate) resin, 5 to 20 parts of polyphenyl ether, 30 to 60 parts of tackifying resin, 5 to 20 parts of wax and 0.4 to 0.8 part of composite antioxidant. EVA and PPE in a specific ratio are selected as base materials (wherein EVA is the main base material), and a proper amount of tackifying resin is added into the system to modify the EVA hot melt adhesive, so that the melt viscosity of the system is reduced, the cohesion of the hot melt adhesive and the wettability of the hot melt adhesive on a bonding interface are improved, the bonding strength is enhanced, and the performance is further improved; the tackifying resin is low in volatile matter, and the softening point of the tackifying resin is higher than that of EVA resin, so that the softening point of the hot melt adhesive can be further improved, and the low-temperature resistance, mechanical property and ageing resistance of the hot melt adhesive are improved.
Owner:HUNAN HENGYI NEW MATERIAL CO LTD
A method for preparing a neodymium-iron-boron nano-coating material
ActiveCN116053035BImprove coating surface tensionImprove pull strength
The present application relates to a kind of preparation methods of coating material, in particular to a kind of preparation methods of neodymium iron boron nano coating material.It includes the following steps: substrate pretreatment;Coating preparation: spray preparation nano coating, the binder of nano coating belongs to silicon-titanium modified polymer system, coating thickness is controlled at 20-25 μm, curing process: 50-70 ℃ surface dry 5-20 min, 160-200 ℃ baking and curing 40-60 min;Coating plasma treatment: plasma treatment 2-4 times.The present application nano gray coating can significantly improve surface tension after plasma treatment, the durability of coating surface tension treated under the condition that air is gas source is obviously superior to nitrogen, surface tension is still above 50 mN / m after room temperature is placed and naturally aged 6 months;After coating surface plasma treatment, drawing strength is also improved simultaneously.
Owner:ZHEJIANG SHEENSEN MAGNETICS TECH CO LTD
A modified asphalt based on recycled rubber powder using a renewable composite activator, its preparation method and application
ActiveCN122080658AEfficient interface modificationFill in the application gapPlastic recyclingBuilding insulationsPolymer sciencePerylene derivatives
This invention pertains to compositions of polymeric compounds, specifically a recycled rubber powder modified asphalt based on a renewable composite activator, its preparation method, and its application. The recycled rubber powder modified asphalt comprises a base asphalt and activated rubber powder in a mass ratio of 1:(0.2~0.3). The activated rubber powder comprises waste tire rubber powder and a composite activator in a mass ratio of 10:(0.8~1.5). The composite activator comprises an organic phase and an inorganic phase in a mass ratio of (1.5~3):1. The organic phase is a chitosan-amino acid derivative, and the inorganic phase is a layered bimetallic hydroxide. Compared with existing technologies, the rubber powder modified asphalt prepared by this invention exhibits good high-temperature storage stability and interfacial structural integrity, demonstrating excellent anti-aging properties and high-temperature rutting resistance during long-term service.
Owner:TONGJI UNIV
Aluminum chloride-based composite flocculant and preparation method thereof
The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.
Owner:WUXI BISHENG WATER TREATMENT AGENT CO LTD
Box door handle for test box
ActiveCN224173846UImprove maintenance convenienceeasy to cleanWing handlesWing knobsStructural engineeringTest chamber
The box door handle for the test box comprises a main body and a rear cover, the main body is of a hollow box-shaped structure with an opening, and the opening is formed in the outer surface of the main body; the rear cover is detachably connected with the main body and forms a sealed cavity with the opening; a plurality of reinforcing ribs are integrally formed in the main body in an injection molding manner, and extend and are distributed along the longitudinal or transverse direction of the main body; through the combination of the hollow box-shaped structure and the detachable rear cover, various technical problems existing in a traditional handle are successfully solved, firstly, the main body adopts the hollow design, materials are saved, the weight is reduced, meanwhile, the external complete shape is kept, and the attractiveness and the holding feeling are not influenced;
Owner:TIANJIN HAISHENG TECHNOLOGY DEVELOPMENT CO LTD
An ultrathin high-viscosity high-elasticity modified asphalt and a preparation method thereof
PendingCN122103917ASolve segregation and stratification problemsImprove low temperature crack resistanceBuilding insulationsElastomerPolymer science
The application belongs to the technical field of modified asphalt materials, and particularly relates to high-viscosity and high-elasticity modified asphalt for ultra-thin surface and a preparation method thereof. The high-viscosity and high-elasticity modified asphalt comprises the following components in parts by weight: 100 parts of base asphalt, 7-15 parts of SBS thermoplastic elastomer, 2-4 parts of tackifier, 4-8 parts of plasticizer, 3-6 parts of polyolefin elastomer grafted glycidyl methacrylate, and 1-2 parts of diaryl disulfide. The polyolefin elastomer grafted glycidyl methacrylate, the specific tackifier and the plasticizer are used to synergistically modify the SBS modified asphalt, so that the anti-segregation performance, low-temperature crack resistance, high-temperature stable anti-rutting capability and anti-aging property of the obtained modified asphalt can be simultaneously improved.
Owner:FUJIAN EXPRESSWAY MAINTENANCE ENG +2
High-wear-resistance and high-weather-resistance anti-frosting rubber and manufacturing method thereof
PendingCN119591949AImprove wear resistanceGood anti-aging performanceWeather resistanceEthylene-propylene-diene-monomer
The invention relates to the technical field of rubber, in particular to high-wear-resistance high-weather-resistance anti-frosting rubber and a manufacturing method thereof, and the high-wear-resistance high-weather-resistance anti-frosting rubber comprises the following raw materials in parts by weight: 70-80 parts of butadiene rubber, 10-30 parts of natural rubber, 10-20 parts of ethylene propylene diene monomer and 39.5-57 parts of mixture.
Owner:QUANZHOU PEAK SHOES
An ear clip type earphone
The utility model relates to earphone technical field discloses an ear clip type earphone, including host computer subassembly and elastic ear block, host computer subassembly includes host computer casing and connecting portion, connecting portion is located host computer casing one end, and with host computer casing integral forming, elastic ear block is located connecting portion away from host computer casing one end, and elastic ear block with connecting portion between be equipped with the fixed structure of snap -on connection. Through integral type structure's host computer subassembly and elastic ear block connection, strengthened earphone whole's mechanical stability and reliability, and elastic ear block preferably soft glue or memory sponge material, can in long -term use, bear frequent deformation and restore and not easy to appear material inside microstructure damage, simultaneously, adopt the elastic ear block of soft glue or memory sponge material, can make more close ear, not easy to drop, and soft glue or memory sponge material can also improve the wearing comfort of user, thereby improve the user's use experience feeling.
Owner:邓运
A radiation-cooled paving brick and its preparation method
PendingCN122079577AImprove mechanical propertiesImprove wear resistanceRefrigeration machinesFiberBrick
This invention belongs to the field of building materials technology and relates to a radiation-cooled paving brick and its preparation method. The radiation-cooled paving brick comprises, from bottom to top, a base layer, a functional layer, and a surface layer. The functional layer comprises, by weight, the following raw material components: 20-50 parts cement-based binder, 20-50 parts radiation-cooling functional filler, 0-30 parts aggregate, 0.5-2.5 parts admixture, and 0.1-0.5 parts reinforcing fiber. Both the functional layer and the base layer of this invention are cement-based materials, resulting in strong bonding. Through the synergistic effect of the functional filler in the functional layer and the cement hydration products with radiation-cooling function, and with the surface coated with an inorganic nano-high-hardness self-cleaning surface layer, a highly efficient and long-lasting radiation-cooling effect can be achieved.
Owner:JIANGXI YINSHAN SUPER MATERIAL TECH CO LTD
Curtain upper beam
ActiveCN224187464UEasy to installEasy to disassembleLight protection screensMechanical engineeringPhysics
Owner:ZHEJIANG YIANO SHADING TECH CO LTD
Methods for creating SMT carrier markings and SMT carriers
This application relates to the field of circuit board manufacturing technology, and discloses a method for manufacturing SMT carrier markings and an SMT carrier. The method for manufacturing SMT carrier markings includes: providing an SMT carrier with a marking area; performing an oxidation treatment on the SMT carrier to cover its surface with an oxide layer; using a first laser to engrave the oxide layer within the marking area, making the marking area white; and using a second laser to further engrave the oxide layer within the marking area to form a marking, which is black. The above-described method for manufacturing SMT carrier markings optimizes the structure of the prepared markings, creating a strong contrast between the marking and the background color of the marking area, making them easily identifiable; furthermore, the white background color of the marking area reflects radiation and lowers the surface temperature of the carrier, making it less prone to discoloration and improving recognition speed. The markings prepared by this application have strong anti-aging properties, increased strength and hardness, and are less prone to wear.
Owner:ZHUHAI ALL WINNER FPC
A new type of steel structure seismic stop block
This invention proposes a novel steel structure seismic-resistant block, fixedly installed at the bottom of a steel box girder and on the inner side of the pier support. It includes a damping plate and a stiffening plate. The damping plate is fixedly mounted on a fixed frame composed of stiffening plates, facing the pier support. The fixed frame is fixedly mounted at the bottom of the steel box girder. The damping plate includes a plate bearing and evenly distributed nails on the plate bearing. Both the plate bearing and the nails are made of neoprene rubber. This invention achieves its damping function by using a neoprene rubber damping plate instead of the original elastic structure. It serves as a primary energy-dissipating structure, with a stiffening plate behind the damping plate acting as a secondary energy-dissipating structure. This multi-layered energy-dissipating structure results in better overall damping performance, effectively absorbing and attenuating vibrations, and reducing the impact of lateral slippage of the superstructure on the pier.
Owner:JIANGSU ZHONGSHE GRP
Electrochemical nanosensor for detecting nitric oxide in macrophages and preparation method and application thereof
This invention belongs to the field of biosensor technology, specifically relating to an electrochemical nanosensor for NO detection in macrophages, its preparation method, and its application. The electrochemical nanosensor includes a working electrode and a layer of gold nanoparticles, a layer of platinum nanoparticles, and a 5-amino-1-naphthol polymer layer sequentially modified on its surface. The 5-amino-1-naphthol polymer layer has a porous structure and can selectively permeate NO molecules while blocking interfering substances. This invention constructs an electrochemical nanosensing platform for in-situ NO detection in single cells, used for evaluating macrophage polarization phenotypes. Simultaneously, this platform was applied to a co-culture system of macrophages and cancer cells under different stress states to explore the regulatory effects of cellular immunogenic death and ferroptosis on macrophage polarization, providing single-cell level technical support and experimental evidence for the study of the tumor immune microenvironment.
Owner:SHANDONG NORMAL UNIV +1
Porcelain sand for extra-high voltage insulator production and preparation method thereof
PendingCN121974658AImprove high temperature resistanceStrong arc resistanceCeramicsClaywaresCelluloseKaolin clay
The invention discloses porcelain sand for extra-high voltage insulator production and a preparation method, the porcelain sand comprises the following components: 30-50 parts of formula mud, 13-18 parts of alumina powder, 10-15 parts of glaze powder, 4-9 parts of talc, 3-8 parts of first-class clay, 5-10 parts of second-class clay, and 4-9 parts of albite, the formula mud is prepared from the following components in parts by weight: 45 to 60 parts of kaolin, 25 to 30 parts of quartz sand, 10 to 15 parts of potassium feldspar, 8 to 10 parts of bentonite and 0.8 to 1.2 parts of carboxymethyl cellulose; the preparation method of the porcelain sand comprises the steps of ingredient grinding, magnetic separation for iron removal, filter pressing for dehydration, vacuum pugging, drying for sand making and high-temperature sintering. The porcelain sand has extremely high high temperature resistance, arc resistance and aging resistance, can be adhered to the root of an insulator blank through glue and is sintered and molded together with the blank, so that the root of the insulator can be better connected with a fitting through cement, and the overall mechanical strength and electrical performance of the insulator are improved.
Owner:HUNAN HUDIAN POWER EQUIP CO LTD
High-temperature-resistant epoxy AB adhesive and preparation method thereof
ActiveCN119505777BImprove mechanical propertiesImprove high temperature resistanceNon-macromolecular adhesive additivesEpoxy resin adhesivesPolymer scienceGraphene
The application relates to the technical field of adhesives, and discloses a high-temperature-resistant epoxy AB adhesive and a preparation method thereof.The high-temperature-resistant epoxy AB adhesive comprises an A component and a B component; the A component comprises the following raw materials: bisphenol A type epoxy resin, an ultraviolet absorber, a defoaming agent, anti-aging oxidized graphene and deionized water; and the B component comprises the following raw materials: acid anhydride silicon oil and deionized water.The anti-aging oxidized graphene and the acid anhydride silicon oil are prepared and used in the preparation process of the epoxy AB adhesive, so that the prepared epoxy AB adhesive has excellent mechanical properties, high-temperature resistance and anti-aging performance, can stably play a bonding role for a long time in a high-temperature environment, does not stick during use, does not affect the use effect, is not prone to aging and cracking, can meet the use requirements in multiple fields, and has a long service life.
Owner:ZHEJIANG RUSONG NEW MATERIAL TECH CO LTD
Waterborne heavy anti-corrosion coating for construction of rusty and residual paint film
PendingCN121950147Aimprove protectionStabilize rustAnti-corrosive paintsElectrically-conductive paintsFluorocarbon ResinsRust
The invention discloses a water-based heavy anti-corrosion coating for construction with rust and residual paint films. The coating comprises an ionic water-based modified alkyd emulsion, water-based fluorocarbon resin, deionized water, an anti-rust pigment, a filler, an anti-flash rust agent, a salt spray resistant auxiliary agent, a self-repairing auxiliary agent, a penetrant, a corrosion inhibitor, a thixotropic agent and an auxiliary agent. The coating contains the anti-rust pigment, the filler, the flash-rust inhibitor and the salt-spray-resistant additive, the four components interact with each other and can act on the steel surface and rust left on the surface to generate a stable chelate passivation layer and a complex, and the product is strongly attached to the steel surface in the form of physical bonds and chemical bonds to form a good insoluble protective film, so that the corrosion resistance of the coating is improved, and the service life of the coating is prolonged. The rust inhibitor can stabilize rust and prevent rust, inhibits the corrosion process, realizes construction with rust, and has the advantages of safety, environmental protection, construction with rust and residual paint film and the like.
Owner:HEBEI XINGZUO NEW ENERGY TECHNOLOGY CO LTD
High strength and durable balloon catheter for deep vein
ActiveCN116726354Bgood dimensional stabilityHigh temperature resistantBalloon catheterMedical devicesVeinThermoplastic polyurethane
The application relates to the technical field of balloon catheters, in particular to a high-strength and durable balloon catheter for deep veins, which comprises a catheter and a connecting pipe, the inner wall of the catheter is movably connected with a communicating pipe, one side of the communicating pipe corresponding to the catheter is provided with an iron filament, the outer wall of the catheter is sequentially provided with a polytetrafluoroethylene layer, a toughness layer and a wear-resistant layer, one end of the catheter is fixedly connected with the connecting pipe, the outer wall of the connecting pipe is provided with a balloon main body, the upper end of the balloon main body is provided with a reinforcing layer and a thermoplastic polyurethane layer, the side close to the balloon main body of the connecting pipe is fixedly connected with a displacement section, the material of the balloon main body can be tightly combined with the thermoplastic polyurethane layer and the reinforcing layer, so that the balloon main body is not easy to fall off, the durability of the device is increased, the user can fold the catheter into a shape required by the human body, the use flexibility of the device is improved, the high-strength and durability of the device are increased, and the service life is prolonged.
Owner:ZHEJIANG TONGXUAN MEDICAL TECH CO LTD
A method for producing a high-strength water-resistant polyvinyl alcohol film
The application discloses a production method of high-strength water-resistant polyvinyl alcohol film and relates to the technical field of high polymer materials. When the high-strength water-resistant polyvinyl alcohol film is prepared, first, quaternary phosphonium salt is prepared by reacting 4-bromobutyric acid and tris(4-fluorophenyl) phosphine, then the quaternary phosphonium salt is subjected to esterification with polyvinyl alcohol to prepare modified polyvinyl alcohol; then, functionalized carbon dots are prepared by taking clove extract, branched polyethyleneimine and cysteine as raw materials, and then the functionalized carbon dots are reacted with 4-formaldehyde benzene boronic acid to prepare boronic acid functionalized carbon dots; the modified polyvinyl alcohol, the boronic acid functionalized carbon dots and sodium carboxymethyl cellulose are mixed and reacted, and after being cast into a film, the high-strength water-resistant polyvinyl alcohol film is prepared by a two-way stretching process. The high-strength water-resistant polyvinyl alcohol film prepared by the application has excellent comprehensive performance, and has good mechanical strength, water resistance and functionality.
Owner:SHANDONG SENGONG NEW MATERIAL TECH CO LTD
Contact network hardware fitting insulation protection suit and manufacturing process thereof
PendingCN119601316Aaccelerated corrosionGood anti-aging performanceInsulating bodiesForeign matterContact network
A catenary fitting insulation protection set comprises an insulation protection cover, the insulation protection cover is used for wrapping a horizontal suspension point electrified fitting, the end portion of the insulation protection cover is connected with an insulation clamp, and the insulation clamp is fixed on the horizontal suspension point electrified fitting; in conclusion, by installing the insulation protection sleeve on the overhead line system live-line equipment at the position where the space distance is limited, such as a tunnel portal, the instant grounding problem caused by birds, foreign matter and the like can be effectively prevented, the operation safety and reliability of the overhead line system equipment of the electrified railway are improved, and the practical value is high; in addition, different shapes suitable for the field can be adopted according to hardware fittings and space structures of application places, and the actual field problems are better solved.
Owner:HARBIN HAOYOU INSULATION PROD CO LTD