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100results about How to "Improve shrinkage" patented technology
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Automobile transmission shaft with kinetic energy recovery function
InactiveCN119116687Aavoid damageachieve recyclingPiezoelectric/electrostriction/magnetostriction machinesShaftsDrive wheelDrive shaft
The invention discloses an automobile transmission shaft with a kinetic energy recovery function, and relates to the technical field of vehicle transmission. The problem of torque transmission vibration energy recovery is solved. The driving shaft is in transmission connection with a vehicle driving source, the driven shaft is in transmission connection with a vehicle driving wheel, the transition shaft is used for being in transmission connection with the driving shaft and the driven shaft, and the energy recovery part is fixed to a vehicle body. The opposite sides of the driving shaft and the transition shaft are each provided with a set of pawls. The driving shaft and the transition shaft are arranged, the driving shaft and the transition shaft are meshed and matched through the pawls, meanwhile, energy conversion is conducted through piezoelectric ceramics, so that second-order vibration energy in the forklift driving or forklift driving process can be absorbed and converted, energy recovery is achieved, meanwhile, a rubber cushion block is arranged, on one hand, vibration buffering can be conducted to a certain degree, and on the other hand, the energy recovery efficiency is improved. And on the other hand, the piezoelectric ceramics can be prevented from being damaged when being driven by a relatively large torque.
Owner:四川吉利学院
Fabric and shoes
The utility model discloses a fabric and shoes, the fabric at least comprises a first knitting area and a second knitting area, the first knitting area is formed by interweaving warp yarns and weft yarns according to weft backed weave, and the second knitting area is formed by interweaving warp yarns and weft yarns according to single-layer change warp rip weave; the weft yarns of the surface-layer texture of the first weaving area are surface-layer weft yarns, the weft yarns of the inner-layer texture of the first weaving area are inner-layer weft yarns, and the shrinkage rate of the surface-layer weft yarns is smaller than that of the inner-layer weft yarns. The shrinkage rate of the surface weft yarns of the weft backed weave is smaller than that of the lining weft yarns, and due to the fact that the shrinkage rate of the surface weft yarns is low and the shrinkage rate of the lining weft yarns is high, the shrinkage rate of the lining weft yarns is large and the shrinkage rate of the surface weft yarns is small after the fabric is subjected to high-temperature setting, so that the surface weft yarns are longer than the lining weft yarns and are forced to bow up; after the weft yarns on the surface layer protrude, the fabric shows a three-dimensional effect.
Owner:ANTA (CHINA) CO LTD
Low-silver conductive paste for low-temperature curing of HJT battery and preparation method of low-silver conductive paste
PendingCN119418980AImprove linearitystrong adhesionNon-conductive material with dispersed conductive materialPhotovoltaic energy generationElectrical batteryLow temperature curing
The invention provides low-silver-content conductive paste for a low-temperature curing HJT battery and a preparation method of the low-silver-content conductive paste, and belongs to the technical field of polymer-based electronic paste materials and HJT efficient battery materials. The low-silver-content conductive paste is composed of the following components in percentage by weight: 52-80% of micron-sized silver-coated copper ball powder, 14-42% of submicron-sized spherical silver powder, 1-3% of an organic solvent, 0.5-2% of a curing agent, 2.5-4% of resin and 0-1% of an auxiliary agent. The micron-sized silver-coated copper ball powder is spherical, and the median particle size is 4-6 microns; the submicron spherical silver powder is in a spherical shape or a sheet shape or a combination of the spherical shape and the sheet shape. The median particle size of the submicron spherical silver powder ranges from 100 nm to 900 nm. The prepared HJT conductive paste can be cured at the low temperature of 150-200 DEG C and has good conductivity, printing performance and adhesive force, the silver content in the paste is only 30-50%, the production cost of a solar cell is greatly reduced, and popularization of the heterojunction solar cell is effectively promoted.
Owner:DK ELECTRONICS MATERIALS INC
Die-casting die
The utility model relates to a die-casting die, which belongs to the field of die-casting dies and comprises a movable die component and a static die. Die-casting cavities are respectively formed in the opposite surfaces of the static die and the movable die assembly; an injection nozzle communicated with the die-casting cavity is arranged on the static die; a U-shaped cooling water cavity is formed in the injection nozzle; the movable mold assembly comprises a movable mold base, a push plate, a push rod fixing plate, a cylindrical push rod, a reset push rod, a demolding push rod and a movable mold body; the die-casting cavity is formed in the movable die body; the push rod fixing plate, the push plate and the movable mold base are sequentially arranged on the movable mold body from inside to outside; according to the injection nozzle structure disclosed by the utility model, the structures of the movable mold assembly and the static mold are combined, so that the technical problems that the injection nozzle is easy to strain and pock marks occur are effectively solved, the service life of the injection nozzle is prolonged, the bonding between a die casting and the static mold is reduced, the demolding efficiency is improved, and the integrity of the casting is ensured.
Owner:YUNNAN CHIHONG RESOURCE COMPREHENSIVE UTILIZATION CO LTD
Underwater electrostatic hydraulic transparent driver, soft propeller and mute unmanned aerial vehicle
ActiveCN119348794Areduce volumereduce weightPropulsive elements of non-rotary typeUnderwater vesselsThin membraneSilicone tape
The invention provides an underwater electrostatic hydraulic transparent driver, a soft propeller and a mute unmanned aerial vehicle. The underwater electrostatic hydraulic transparent driver comprises a liquid bag, a wire, a hydrogel electrode, a first layer of transparent light curing adhesive, a PET adhesive tape and a second layer of transparent light curing adhesive, a hydrogel electrode is pasted on the outer side of the liquid bag, and a wire is arranged between the hydrogel electrode and the liquid bag; the periphery of the hydrogel electrode is coated with a first layer of transparent photo-curing adhesive, PET adhesive tapes are adhered to the outer sides of the hydrogel electrode and the first layer of transparent photo-curing adhesive, and the periphery of the PET adhesive tapes is coated with a second layer of transparent photo-curing adhesive. After the flexible thruster is powered on, films on the two sides of the liquid bag attract each other due to the electric charge effect, internal silicone oil is extruded to the connecting position of the square plate and the fin-shaped structure, the driver shrinks, and under the positive and negative alternating current effect, the flexible thruster driving arm swings regularly to drive the whole to float upwards or steer.
Owner:SHANGHAI JIAOTONG UNIV
Low-temperature high-adhesion conductive silver paste and preparation method thereof
PendingCN119480213Agood adhesionImprove mechanical propertiesNon-conductive material with dispersed conductive materialPhotovoltaic energy generationSide chainAcrylonitrile
The invention discloses low-temperature high-adhesion conductive silver paste and a preparation method thereof, and the conductive silver paste comprises the following raw materials in parts by weight: 10-15 parts of modified polyurethane, 8-10 parts of methyl methacrylate, 3-5 parts of isobornyl acrylate, 1-1.5 parts of acrylonitrile, 1-1.5 parts of KH570, 0.1-0.3 part of a photoinitiator, 55-65 parts of silver powder and 10-15 parts of ethyl acetate. A polyurethane acrylate molecular side chain generated after the conductive silver paste is cured contains cyano groups, the cyano groups have high polarity, then the shrinkage performance of the molecular chain is enhanced, the distance between the silver powder is shortened, the silver powder is adsorbed, dispersion of the silver powder is facilitated, meanwhile, a stable conductive path can be formed in the silver paste through addition of the modified filler, and the conductive performance of the silver paste is improved. The mechanical property of the material after the silver paste is cured is improved, and the service life is prolonged.
Owner:DONGGUAN DOMAL ELECTRONICS SCI & TECH
High-performance heat-treatment-free recoverable gravity or low-pressure casting aluminum alloy and manufacturing method
PendingCN119320898Aguaranteed liquidityImprove shrinkageProcess efficiency improvementPressure castingUltimate tensile strength
The invention discloses a high-performance heat-treatment-free recoverable gravity or low-pressure casting aluminum alloy and a manufacturing method thereof. The aluminum alloy comprises the following elements in percentage by mass: 3-10wt% of Zn; 0.25 to 3 wt% of Mg; 0.5 to 3 wt% of Ca; si: 0.05 to 2 wt%; fe: 0.05 to 2 wt%; not more than 0.15 wt% of unavoidable inclusions; and the balance of Al; the gravity / low-pressure casting as-cast state yield strength of the alloy is larger than or equal to 210 MPa, the tensile strength is larger than or equal to 280 MPa, the ductility is larger than or equal to 5%, the mechanical property of an industrial A356 cast aluminum alloy T6 in a heat treatment state is achieved, high-performance components can be manufactured without heat treatment, energy conservation and cost reduction benefits are remarkable, meanwhile, the alloy has the high-speed rail tolerance limit and recoverability, and the production cost is reduced. And the method has a huge application prospect in lightweight, green and low-cost manufacturing of key structural parts in the fields of automobiles and aviation.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
55SiCr spring steel hot-rolled wire rod and method for improving uniformity of cleaning rod structure and mechanical property of 55SiCr spring steel hot-rolled wire rod
The invention discloses a 55SiCr spring steel hot-rolled wire rod and a method for improving the uniformity of the cleaning rod structure and the mechanical property of the 55SiCr spring steel hot-rolled wire rod. According to the method for improving the uniformity of the cleaning rod structure and the mechanical property of the 55SiCr spring steel hot-rolled wire rod, element segregation is improved, spinning and air cooling processes are optimized, and the uniformity of the cleaning rod structure and the mechanical property of the 55SiCr spring steel hot-rolled wire rod is improved. After the temperature difference between the lap joint point and the non-lap joint point of the wire rod is reduced, the uniformity of the structure and the mechanical property of the hot-rolled wire rod can be improved, and the overall mechanical property of the wire rod can be improved; the tensile strength fluctuation of the prepared 55SiCr spring steel hot-rolled wire rod is smaller than or equal to 20 MPa, and the percentage reduction of area fluctuation is smaller than or equal to 3%.
Owner:SGIS SONGSHAN CO LTD
Moisture-absorption quick-dry spandex-free elastic knitted fabric and preparation method thereof
ActiveCN119194718AImprove antibacterial propertiesreduce crystallinityWeft knittingFilament/thread formingPolymer sciencePolyethylene terephthalate glycol
The invention relates to the technical field of chemical fibers and textiles, in particular to a moisture-absorption quick-dry spandex-free elastic knitted fabric and a preparation method thereof.The fabric is formed by weaving polyester fibers and polyester filament yarns, the mass of the polyester fibers accounts for 50%-70% of the total fabric, and the mass of the polyester filament yarns accounts for 30%-50% of the total fabric; the polyester fibers are hydrophilic quick-dry composite elastic antibacterial polyester fibers formed by carrying out composite spinning processing on PTT (Polytrimethylene Terephthalate) and antibacterial PET (Polyethylene Terephthalate); and the polyester filament yarns are high-shrinkage antibacterial polyester filament yarns with cross sections and the like. The high-shrinkage antibacterial polyester yarn adopts a special high-molecular polymer and has the advantages of high temperature resistance and good antibacterial property, the isophthalic acid modifier assists in reducing the crystallinity and improving the contractibility, the spinning performance is not influenced, the two modified fibers are reasonably interwoven and exert respective advantages, the prepared moisture-absorbing quick-drying spandex-free elastic knitted fabric has the advantages that the fibers are subjected to copolymerization modification, and the moisture-absorbing quick-drying spandex-free elastic knitted fabric has good moisture-absorbing and quick-drying effects. And the fabric has a cotton-like characteristic, does not need to be added with spandex, and has various excellent properties after being treated.
Owner:QINGYUAN INNOVATION LABORATORY +1
Ceramic sand-based light ultra-high performance concrete and preparation method thereof
PendingCN119285293Alow apparent densityImprove shrinkageSolid waste managementCeramicwareHigh densityStructural engineering
The invention relates to pottery sand light ultra-high performance concrete and a preparation method thereof, aims to solve the problems of large density and large shrinkage of traditional ultra-high performance concrete, and prepares the light ultra-high performance concrete with apparent density of 2000kg / m or less and strength of 110MPa or more by adopting pottery sand as a light aggregate and optimizing grain composition of the pottery sand and a cementing material. According to the technical scheme, the preparation method comprises the following steps: selecting cement, fly ash, silica fume and multi-particle-size pottery sand in a specific proportion, determining an optimal mixing proportion through Andriasen and a compressible stacking model, and adding copper-plated steel fibers to improve mechanical properties; the material cost, self weight and shrinkage rate are effectively reduced, and the prepared concrete has good fluidity and volume stability, is environment-friendly and energy-saving, improves the construction efficiency and structural durability, has wide building application prospects, is especially suitable for the engineering field sensitive to self weight and requiring high strength, and has wide application prospects. And a new path is provided for promoting light-weight and high-performance development of building materials.
Owner:CHINA THREE GORGES UNIV
Preparation and application method of pine needle organic compost
InactiveCN119528647AImprove adsorption capacityImprove disease resistanceBioloigcal waste fertilisersMicroorganism based treatmentSoil scienceOrganic manure
The invention discloses a pine needle organic compost preparation and application method, and belongs to the technical field of organic fertilizers, and the pine needle organic compost preparation and application method comprises the following steps: mixing potassium sulfate, plant ash, modified attapulgite, borax, pine needles and rape seed cakes, uniformly stirring, grinding, and carrying out puffing treatment to obtain a puffed material; uniformly mixing the puffed material, potassium citrate and a composite strain, fermenting, and drying to obtain a fermented material; mixing the leavening, the seaweed extract, the modified cellulose and the lignin aqueous dispersion to obtain a compound microcapsule; mixing the compound microcapsules, the reinforcing filler and the organic fertilizer to obtain a mixture, and dehydrating, granulating, screening and packaging the mixture to obtain the organic compost. The compound microcapsules avoid the loss of beneficial components of the leavening and the organic fertilizer in the processes of dehydration, granulation, screening and packaging, and the compound microcapsules provide a living space for composite strains in the leavening; the reinforcing filler has a porous structure, so that the adsorption of the fertilizer is improved.
Owner:HENGYANG COUNTY BRANCH HENGYANG COMPANY OF HUNANTOBACCO
Application of 2-ME in preparation of medicine for preventing or treating sepsis cardiomyopathy
PendingCN119424395Arestore activityReduce apoptosis rateSulfur/selenium/tellurium active ingredientsAntiinfectivesCardiac muscleApoptosis
The invention discloses application of 2-ME in preparation of a medicine for preventing or treating sepsis cardiomyopathy, low-dose 2-ME can recover the activity of myocardial cells damaged by sepsis, reduce the apoptosis rate of the myocardial cells and enhance the contractility of the myocardial cells, so that the heart function is improved; the 2-ME can significantly inhibit cell death, reduce accumulation of disulphide in cells and prevent occurrence of disulphide death, and has potential application prospects in myocardial protection and prevention and treatment of sepsis myocardial injury.
Owner:GENERAL HOSPITAL OF PLA
Switching equipment rod piece and sealing device for plugging hole
Owner:XIAN RAILWAY SIGNAL +1
Telescopic and foldable vibrating rod capable of being expanded at multiple points and construction method
ActiveCN119572019AImprove the vibration effectEasy to stretchBuilding material handlingGear driveGear wheel
Owner:CHINA FIRST METALLURGICAL GROUP
Bottom label shrinking mechanism for sleeve labeling machines
ActiveCN112623419BImprove shrinkagehigh utility valueLabelling short rigid containersLabelling machinesThermodynamicsBottle
The present invention discloses a bottom labeling shrinking mechanism for a sleeve labeling machine, comprising a bottom plate, an inclined plate, a bottle clamping mechanism, and a heating device. The bottle inlet end of the inclined plate is butted against the outlet of the container conveying line, the bottle outlet end of the inclined plate is connected to the bottle inlet end of the bottom plate, the bottle inlet end of the inclined plate is lower than the bottle outlet end, the bottle clamping mechanism is arranged above the inclined plate, and is used to clamp the container and convey it horizontally to the bottom plate, and the heating device is arranged at the lower end of the bottle inlet end of the bottom plate, and is used to heat the bottom of the container conveyed to the bottom plate. When the clamped and conveyed container passes through the inclined plate, the container and the label slide on the inclined plate, the inclined plate pushes the container upward, the label retains the original position relative to the bottom of the container, the electric heating hair dryer under the bottom plate is started to heat the bottom of the container above it, the label shrinks due to the heat, and the bottom shrinking work of the container is completed. The present invention has a simple structure and is easy to operate, improves the shrinking effect of the container label, and also reduces the labor intensity.
Owner:MINCEN INTELLIGENT TECH (SHANGHAI) CO LTD
Silicon nitride high-thermal-conductivity insulating composite material and preparation method thereof
PendingCN119264597AGood compatibilityImprove mechanical propertiesSecuring/insulating coupling contact membersInsulating bodiesFiberAnti oxidant
The preparation method comprises the following steps: carrying out surface modification on nano silicon nitride and montmorillonite by using a surface modification coupling agent to obtain a modified inorganic filler, and blending homopolyformaldehyde, an initiator, an antioxidant and a release agent to obtain pasty resin; the silicon nitride fibers and the modified inorganic filler are added into the pasty resin and uniformly mixed to form a resin mixture, heating and pressurizing are performed until curing molding is performed, and then demolding is performed to obtain a composite insulating material finished product, so that the manufacturing difficulty and cost can be reduced, high thermal conductivity and bending strength of the material are considered, and the fracture toughness and dielectric property of the composite material are further improved; the bending strength is larger than 395 MPa, the fracture toughness is larger than 10 MPa / m < 0.5 >, the thermal conductivity is larger than 25 W / m.k, and the volume resistivity is larger than 1013 omega.cm, so that the problem of high temperature caused by large resistance at the bus duct joint is effectively solved, and the durability and the safety of equipment are improved.
Owner:SUZHOU YUANZHI HIGH-TECH MATERIALS TECHNOLOGY CO LTD
Proton ceramic fuel half cell containing transition layer, cell and preparation method
ActiveCN119518046AImprove mechanical propertiesImprove shrinkageFuel cellsElectrical conductorFuel cells
The invention provides a proton ceramic fuel half cell containing a transition layer, a cell and a preparation method. Belongs to the technical field of solid oxide fuel cells. The transition layer is compounded on the oxygen ion conductor supporting layer, and the transition layer is prepared from cerium-based ceramic powder; the anode functional layer is made of a proton conductor material and is compounded on the transition layer; and the electrolyte layer is compounded on the anode functional layer. The NiO / cerium oxide-based transition layer is designed between the fuel electrode supporting layer and the fuel electrode functional layer, so that a difficult-to-sinter phase is prevented from being generated between the supporting layer and the functional layer, and the problems that the cell is difficult to sinter and the catalytic activity of the functional layer is reduced due to the generation of a zirconium-rich oxide layer are effectively solved.
Owner:NORTH CHINA ELECTRIC POWER UNIV
Plugging and separating device for oil way hole in speed regulator
ActiveCN119508487Aeasy to makelow costMeasurement of fluid loss/gain rateEngine sealsElectrical and Electronics engineeringSpeed regulator
The invention discloses a blocking and separating device for an oil way hole in a speed regulator, and relates to the technical field of speed regulator pressure maintaining tests. A strip-shaped hole is formed in one outer wall face of a speed regulator body, and a plurality of oil passing channels in the speed regulator body penetrate through and communicate with the strip-shaped hole; the communication positions of the multiple oil passing channels and the strip-shaped hole are arranged at intervals in the length direction of the strip-shaped hole, and the device comprises an expansion cylinder, and a plurality of sealing convex rings capable of expanding and shrinking in the radial direction are coaxially arranged on the peripheral wall of the expansion cylinder; the multiple sealing convex rings are arranged at intervals in the axial direction of the expansion cylinder. One end of the expansion plug rod can be inserted from a barrel opening in the top end of the expansion barrel, so that the barrel wall, inserted into the strip-shaped hole, of the expansion barrel expands, and then the multiple sealing convex rings are all plugged in the strip-shaped hole; a plurality of communicating channels communicating with the oil passing channels in a one-to-one correspondence mode are formed between the outer wall of the expansion cylinder and the inner wall of the strip-shaped hole and between any two adjacent sealing convex rings. The device is simple in structure, convenient to mount and dismount, resistant to high pressure, reliable and stable.
Owner:AVIC HUIYANG AVIATION PROPELLER
Household multifunctional washstand
ActiveCN222640362UFlexible useImprove convenienceWash-standsDomestic plumbingWheelchairMechanical engineering
The utility model discloses a family type multifunctional washstand which comprises a cabinet body and a wash basin assembly arranged above the cabinet body, the front face of the cabinet body is an inclined face, the inclined face and the ground form a space used for containing a wheelchair, a drawer assembly is arranged on one side of the inclined face, and the drawer assembly comprises a plurality of drawers and layer plates which are arranged in a stacked mode. The drawers and the shelf boards are connected with the cabinet body in a sliding mode, the adjacent drawers are separated through the shelf boards in the vertical direction, the wash basin assembly comprises a wash basin mechanism and a faucet mechanism, and the wash basin mechanism comprises a first wash basin and a second wash basin which are distributed in a stepped mode. The water faucet mechanism comprises a first water faucet and a second water faucet which are respectively arranged above the first water basin and the second water basin; according to the utility model, the wash basin mechanisms are distributed in a stepped manner and have different heights, so that the use requirements of different family members are met, the two wash basins can be used at the same time, and the wash basin mechanisms distributed in the stepped manner enrich the functions of the wash table, so that the family members can wash safely and comfortably.
Owner:南昌理工学院
Preparation method of tough polyrotaxane hydrogel humidity brake and prepared tough polyrotaxane hydrogel humidity brake
The invention discloses a preparation method of a tough polyrotaxane hydrogel humidity brake and the prepared tough polyrotaxane hydrogel humidity brake. The preparation method of the tough polyrotaxane hydrogel humidity brake comprises the steps that under the conditions of a photoinitiator and ultraviolet irradiation, the tough polyrotaxane hydrogel humidity brake is prepared; acrylic acid as a monomer, vinyl polyrotaxane as a cross-linking agent and vinyl triethoxy siloxane as a reinforcing agent are subjected to a polymerization reaction to obtain the tough polyrotaxane hydrogel humidity brake, and the tough polyrotaxane hydrogel humidity brake shows a super-shrinkage behavior when meeting moisture, so that PHFB has the capability of being used as the humidity brake and can lift an object under the driving of moisture. The PHFB tough polyrotaxane hydrogel humidity brake is large in mechanical strength, high in toughness, high in contractibility and high in power capability, and can be used as a powerful fiber humidity brake.
Owner:HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
Novel double-sided same-color hot reel pipe embroidered sheet and production process thereof
PendingCN119189536AImprove shrinkagevalid packageDecorative surface effectsThermographyPolyurethane adhesiveHigh heat
The invention relates to a novel double-sided same-color hot rolling pipe embroidery sheet and a production process thereof, and relates to the field of hot rolling pipes, and the novel double-sided same-color hot rolling pipe embroidery sheet comprises a high-temperature thermosetting resin color layer, a vacuum aluminum plating layer, an aluminum layer connecting resin color layer, a PET layer, an adhesive layer and a shrinkage layer which are arranged in sequence. The production process comprises the following steps: sequentially preparing an aluminum layer connecting resin color layer, a vacuum aluminum plating layer and a high-temperature thermosetting resin color layer on the surface of a PET layer to obtain a layer I; carrying out corona treatment on one side, far away from the color layer, of the I layer and one side, far away from the contraction layer, of the I layer, coating a polyurethane adhesive on the surface of the corona layer of the I layer to obtain an adhesive layer, attaching the surface of the corona layer of the contraction layer to the adhesive layer, and curing to obtain the novel double-sided same-color hot reel pipe embroidery sheet. The double-sided same-color embroidery sheet has the effect of improving the hot rolling performance and the interlayer bonding strength of the hot rolling pipe embroidery sheet, the defective rate can be effectively reduced through the double-sided same-color design, the production process is simplified, and the production efficiency is improved.
Owner:SHANGHAI JINWU IND CO LTD
Polyester film, and heat-shrinkable label and packaging material comprising same
PendingEP4368661A4satisfies both thermal properties and chemical resistance propertiesimproved in thermal property and chemical property
A polyester film according to one embodiment has improved thermal properties and chemical properties by controlling the crystallinity of a copolymerized polyester and, particularly, exhibits excellent shrinkage per unit temperature as well as adhesiveness by means of a solvent, and thus is suitable for a heat-shrinking process and a seaming process. Therefore, the polyester film according to said embodiment can be usefully applied, as a heat-shrinkable label or packaging material, to containers of various products comprising drinks or food.
Owner:MICROWORKS CO LTD
Heat shrink tube for bonding silica gel cable
The utility model relates to a heat shrink tube for bonding a silica gel cable, which comprises a tube wall, a hot melt adhesive layer and a butyl adhesive bonding layer, the hot melt adhesive layer covers the inner side of the tube wall, the butyl adhesive bonding layer is bonded on the surface of the hot melt adhesive layer, and the butyl adhesive bonding layer is bonded on the inner side of the tube wall. The butyl adhesive bonding layer at least covers the surface of the hot melt adhesive layer at the bonding position in the pipe wall, and the bonding position corresponds to the cable structure layers on the two sides of the cut-off position of the silica gel cable shielding layer. According to the utility model, good bonding between the heat shrink tube and the silica gel cable can be realized, so that the problem that no special heat shrink tube for sealing the silica gel cable exists at present is solved.
Owner:CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD
Traditional Chinese medicine compound and preparation for treating coronary heart disease as well as preparation method and application of traditional Chinese medicine compound and preparation
PendingCN121987718AComply with the treatment principles of traditional Chinese medicineSuitable for long-term conditioningPowder deliveryLyophilised deliveryMedicinal herbsSalvia miltiorrhiza
The invention relates to the technical field of pharmaceutical preparations, in particular to a traditional Chinese medicine compound and preparation for treating coronary heart disease and a preparation method and application of the traditional Chinese medicine compound and preparation. The traditional Chinese medicine composition is prepared from the following medicinal materials in parts by weight: 10-30 parts of astragalus membranaceus, 5-15 parts of rhodiola rosea, 10-30 parts of salvia miltiorrhiza, 5-15 parts of ligusticum wallichii, 10-30 parts of trichosanthes kirilowii maxim, 5-15 parts of allium macrostemon, 5-15 parts of folium ginkgo, 10-30 parts of radix puerariae, 10-30 parts of radix ophiopogonis, 3-10 parts of schisandra chinensis, 15-30 parts of oyster, 5-15 parts of cassia twig and 3-10 parts of liquorice. Animal experiment results show that the traditional Chinese medicine composition provided by the invention has remarkable and multi-aspect curative effect advantages in the aspect of treating a coronary heart disease rat model. The traditional Chinese medicine composition not only can enhance myocardial contractility and recover heart blood pumping function, but also can inhibit inflammatory response, relieve myocardial damage, effectively relieve myocardial structure damage and protect myocardial tissue integrity. In addition, a proportional experiment result shows that the effect of the composition provided by the invention can be obviously weakened by losing any medicine pair, so that all the medicines in the formula cannot be absent.
Owner:HEILONGJIANG UNIV OF CHINESE MEDICINE
A nitrogen surfactant composite throughput method and application
ActiveCN119163392Breduce interfacial tensionImprove efficiencyClimate change adaptationFluid removalNaturally occurring surfactantsActive agent
The present invention provides a nitrogen surfactant composite injection method and application, and relates to the field of oil production technology. The method comprises sequentially injecting a composite surfactant front plug, a nitrogen main plug, a composite surfactant rear plug, and a nitrogen rear plug into the oil reservoir, shutting the well, and opening the well for production; wherein the composite surfactant in the composite surfactant front plug and the composite surfactant rear plug comprises: a main surfactant, an auxiliary surfactant, and water; the main surfactant comprises an oil-soluble surfactant and a fatty amide propyl dimethyl amine oxide; the auxiliary surfactant comprises a fatty alcohol polyoxyethylene polyoxypropylene block copolymer and a natural surfactant. The method can greatly reduce the oil-water interfacial tension, and can effectively inhibit the occurrence of gas cross-flow in the exploitation of low-permeability fault block oil reservoirs. The reagent enters a farther well area under the high pressure of nitrogen, thereby improving the oil washing efficiency and oil increase effect.
Owner:DESHI ENERGY TECH GRP CO LTD
Super-thick heavy-load biodegradable heat shrinkage film with controllable shrinkage rate as well as preparation method and application of super-thick heavy-load biodegradable heat shrinkage film
The invention relates to the technical field of biodegradable materials, and provides a super-thick heavy-load biodegradable heat shrinkage film with controllable shrinkage rate and a preparation method and application thereof. The preparation method comprises the following steps: adding 50-90 parts by weight of poly (butylene adipate-co-terephthalate) (PBAT), 10-40 parts by weight of polylactic acid (PLA), 1-5 parts by weight of a plasticizer, 0.1-5 parts by weight of a compatilizer, 0.1-1 part by weight of an antioxidant, 0.1-1 part by weight of an anti-hydrolysis agent, 0.1-1 part by weight of a lubricant, 0.1-1 part by weight of a dispersant and the like into a high-speed mixer step by step according to a particle-liquid-powder sequence for mixing; carrying out melt extrusion and granulation through a double-screw extruder to prepare the modified material for the biodegradable heat shrinkage film; plasticizing the modified material for the thermal shrinkage film in a film blowing machine, upwards extruding and blowing to form a first film bubble with the blowing ratio of 1-4, and cooling and drafting to form a film; performing hot bath and secondary huffing to form a second film bubble with the draw ratio of 2-5; and cooling and shaping through a cold water jacket, drawing and rolling to form the biodegradable thermal shrinkage film. The biodegradable thermal shrinkage film prepared by the preparation method provided by the invention is controllable in shrinkage rate and thick in film thickness, and can be used for packaging heavy objects.
Owner:NINGBO INOVI NEW MATERIALS CO LTD
Self-lubricating flame-retardant epoxy resin for basalt fiber pultrusion and preparation method and application thereof
The invention discloses self-lubricating flame-retardant epoxy resin for pultrusion of basalt fibers as well as a preparation method and application of the self-lubricating flame-retardant epoxy resin, and relates to the technical field of high polymer materials. The self-lubricating flame-retardant epoxy resin is prepared from the following raw materials in parts by mass: 100 parts of a phenolic aldehyde modified epoxy resin solution, 0.5-2 parts of a silane coupling agent, 2-8 parts of modified graphite powder, 20-30 parts of modified nano aluminum hydroxide, 0.5-1.0 part of a plasticizer, 0.2-0.8 part of an accelerant and 10-15 parts of a diluent. The modified graphite powder and the modified nano aluminum hydroxide are used as inorganic inert fillers to synergistically modify the epoxy resin, so that the basalt fiber pultrusion sectional material has the characteristics of low friction coefficient, good flame retardance, high strength, good toughness and low shrinkage rate, is simple in preparation process and easy for industrial production, and has wide application prospects in the field of basalt fiber pultrusion sectional materials.
Owner:BEIJING XUANZE NEW MATERIAL TECH CO LTD
Gel silk solidification system and preparation method of ultra-high molecular weight polyethylene fiber
PendingCN119465424AGuaranteed uptimeincrease contactNew-spun product collectionFilament manufactureFiberPolymer science
The invention belongs to the technical field of high-performance fibers, and particularly relates to a gel silk solidification system and a preparation method of ultra-high molecular weight polyethylene fibers.The gel silk solidification system comprises a cooling water tank and a silk spraying assembly, the silk spraying assembly is connected with a bottom roller A through fibers sprayed by the silk spraying assembly, and the bottom roller A is connected with a bottom roller B through fibers; the bottom roller B is parallel to the bottom roller A relative to the inner bottom end of the cooling water tank, the bottom roller B is connected with two sets of three-rollers through gel threads formed after cellosilk is cooled through the cooling water tank, and the two sets of three-rollers are connected through the gel threads and connected with a silk outlet roller through the gel threads. The silk outlet roller is sequentially connected with a silk swinging rod and a silk containing barrel from top to bottom through gel silk. According to the method, the production stability, the product performance and color difference control can be remarkably improved, the production cost is reduced, the consistency of the retraction rate and the flexibility of a process window are improved, and powerful support is provided for wide application of the ultra-high molecular weight polyethylene fiber.
Owner:JIANGSU JONNYMA NEW MATERIALS CO TLD
Polypropylene-based heat shrinkable film
ActiveEP4332153A4shrinkabilitysmall natural shrinkage
Provided herein is a heat-shrinkable polypropylene film having a specific gravity of 0.95 or less, and that exhibits excellent low-temperature shrinkability, small natural shrinkage, and excellent perforation opening property. A drawn film is provided that comprises a polypropylene resin composition, wherein the drawn film is a polypropylene heat-shrinkable film satisfying the specific features.
Owner:TOYOBO CO LTD
Cement-stabilized phosphogypsum-stone chips mixture and preparation method thereof
The present invention provides a cement-stabilized phosphogypsum-stone chips mixture and a preparation method, and relates to the technical field of solid waste admixture preparation. The cement-stabilized phosphogypsum-stone chips mixture is prepared by mixing phosphogypsum, stone chips, cement, fly ash of graded particle size, modified steel slag powder, mineral powder, sodium hydroxide, composite modified fiber, water and other materials, wherein the modified steel slag powder is prepared by mixing the steel slag powder with a coupling agent after acid washing, and the composite modified fiber is obtained by blending plant fiber with polypropylene fiber after modification. The present invention overcomes the shortcomings of the prior art, can recycle industrial waste and reduce the production cost of building materials, while effectively ensuring the mechanical properties of building materials.
Owner:HUNAN RENJIAN DRY POWDER MORTAR CO LTD