1505results about How to "Reduce shedding" patented technology

The invention discloses a composite rubber material with wear resistance and high tear strength and a preparation method of the composite rubber material, and belongs to the technical field of rubber material processing. The technical problem that the enhancement effect of the filler on the wear resistance, tear resistance and mechanical strength of a rubber matrix needs to be further improved exists in the prior art. The composite material comprises the following components in parts by weight: 100-110 parts of internal mixed rubber, 1-2 parts of a vulcanization accelerator and 2-3 parts of a vulcanizing agent, modified polybutadiene is reinforced by aramid pulp, modified carbon black and modified graphene to prepare composite polybutadiene, and then styrene butadiene rubber is reinforced and modified by the prepared composite polybutadiene and silicone rubber to prepare the composite material. By improving the degree of crosslinking between material molecules and optimizing material composition, the wear resistance and tear resistance of the composite rubber material are effectively improved, and the mechanical property of the composite rubber material is also improved.

The invention provides an unmanned aerial vehicle RGB image cotton yield prediction method based on an attention mechanism. The unmanned aerial vehicle RGB image cotton yield prediction method comprises the steps of 1, selecting a proper prediction object; and step 2, spraying a defoliating agent with a reasonable dosage. And step 3, obtaining test data. And 4, constructing a yield prediction model. And 5, predicting the cotton yield. And step 6, evaluating the model. According to the method, the unmanned aerial vehicle carries the visible light camera to collect the cotton canopy RGB image, the problem that the prediction precision of a single feature is not high is solved, image color features and texture features are extracted and combined, data are processed through a principal component analysis method, a CNN-Bi LSTM cotton yield prediction model based on an attention mechanism is established, and the cotton yield prediction precision is improved. And comparing and analyzing a plurality of deep learning yield prediction models of different cotton varieties, and screening out an optimal prediction model, so as to provide reference for rapidly predicting the cotton yield by using the unmanned aerial vehicle.

The invention provides a quick-charge and quick-discharge type lithium battery and a preparation method thereof, and belongs to the technical field of lithium battery preparation. The preparation process comprises the following steps: preparing a fluorinated carbon nanotube based on biomass carbon; preparing a positive electrode plate; preparing the dendritic mesoporous silicon dioxide nano particles; preparing a cerium oxide-loaded two-dimensional hierarchical porous composite material; preparing a negative electrode plate; and assembling the lithium battery. According to the preparation method, the eutectic and the carbon fluoride nanotubes are added in the preparation of the positive electrode plate, and the cerium oxide-loaded two-dimensional hierarchical porous composite material and the carbon fluoride nanotubes are added in the preparation of the negative electrode plate, so that the prepared positive electrode plate and the prepared negative electrode plate have relatively high conductivity; and moreover, the ion transmission efficiency is improved, the rapid ion transmission is beneficial to reducing the polarization phenomenon of the battery, improving the charging and discharging rate and the power performance of the battery, enhancing the structural stability of the electrode, improving the performance and the safety of the battery, and being more beneficial to rapid charging and rapid discharging.

The invention belongs to the field of cosmetics, and discloses a composition with an anti-hair-loss effect and application thereof.The composition is prepared by mixing a cacumen biotae extract, a radix polygoni multiflori extract, an oil control factor and soybean milk fermentation liquor, and the anti-hair-loss effect of the cacumen biotae extract and the radix polygoni multiflori extract is further enhanced through the oil control factor and the soybean milk fermentation liquor; in addition, the invention further discloses a cosmetic which contains 1-10 wt% of the composition.

The invention provides a Chinese arborvitae twig and folium artemisiae argyi lotion and a preparation method and application thereof, and relates to the technical field of alopecia prevention, the Chinese arborvitae twig and folium artemisiae argyi lotion is prepared from the following traditional Chinese medicines: Chinese arborvitae twig, rhizoma drynariae, folium artemisiae argyi, chrysanthemum, mint, schizonepeta, divaricate saposhnikovia root, ligusticum, wrinkled gianthyssop herb, rhizoma nardostachyos, fructus viticis, radix polygoni multiflori preparata and garden balsam stem, and the Chinese arborvitae twig and folium artemisiae argyi lotion is prepared by soaking and decocting the traditional Chinese medicines in distilled water and filtering out traditional According to the prepared folium artemisiae argyi lotion, the medicinal materials are reasonably matched, the traditional Chinese medicinal materials are combined together according to the compatibility of monarch, minister, assistant and guide, the effects of stimulating hair follicle conversion, inhibiting the activity of 5-alpha reductase, adjusting the scalp microenvironment, relieving scalp greasiness and the like are achieved, heat clearing, dampness eliminating, liver and kidney nourishing and blood cooling and nourishing can be achieved, meanwhile, blood circulation promoting and collateral dredging can be achieved, and the effect of removing blood stasis is achieved. The traditional Chinese medicine composition has a good effect on androgen alopecia, alopecia areata, scalp seborrheic dermatitis or scalp psoriasis with symptoms such as alopecia, more oily hair, scalp desquamation or itching and the like.

The invention relates to the technical field of cement-based anticorrosive materials, and particularly discloses a modified magnesium phosphate cement anticorrosive material as well as a use method and application thereof. The anticorrosive material comprises the following components in parts by weight: 100 parts of modified magnesium phosphate cement, 3-15 parts of a retarder, 1-10 parts of an epoxy resin glue solution, 0.5-5 parts of metakaolin and 15-20 parts of water. The modified magnesium phosphate cement comprises dead burned magnesium oxide and modified phosphate in a mass ratio of (1-4): 1. The modified phosphate is prepared from the following raw materials: nano aluminum oxide, sodium citrate and phosphate in a mass ratio of (0.5-1.5): (0.5-1.5): (20-25). The epoxy resin glue solution comprises uncured epoxy resin glue and a curing agent. The anti-corrosion material provided by the invention has the technical advantages of strong adhesive property and excellent anti-corrosion property, and can better provide protection for a steel structure serving in a marine environment.

The invention belongs to the technical field of coatings, and particularly relates to a UV-LED curing coating for coating a new energy automobile as well as a preparation method and application of the UV-LED curing coating. The coating is prepared from the following components in parts by mass: 30 to 50 parts of modified epoxy acrylate resin, 10 to 20 parts of polyurethane acrylate resin, 10 to 20 parts of modified polydimethylsiloxane, 5 to 10 parts of a mixed photoinitiator, 1 to 3 parts of a photosensitizer, 1 to 3 parts of a flatting agent, 1 to 3 parts of an anti-aging agent, 1 to 3 parts of a de-foaming agent and 10 to 40 parts of water. The coating combines the advantages of a UV-LED light source, and adopts a specially designed resin system and photoinitiator formula, so that the adhesive force and mechanical property of the coating are improved, the curing efficiency of the coating is improved, meanwhile, the coating also has good electrical insulation property, and the quality and efficiency of automobile coating are remarkably improved.

The invention discloses a transformer with a leading-out mechanism, and relates to the technical field of transformers. The transformer comprises a transformer body, a plurality of high-voltage wire outlet ends are fixed to one side of the top of the transformer body, a plurality of low-voltage wire outlet ends are fixed to the other side of the top of the transformer body, a protective shell is fixed to the top of the transformer body, and a plurality of vertical plates are fixed to the top of the transformer body; and an opening for accommodating the vertical plate is formed in one side of the protective shell. Through the arrangement of the anti-dragging device, the screw rod, the arc clamping plate and the limiting rod are matched to drive the arc clamping plate to clamp and fix the guide wire, so that the guide wire can be firmly fixed at a specified position, and the situation that the guide wire is loosened or falls off due to external force (such as collision or dragging of a worker during operation) is reduced; therefore, the stability of electrical connection can be ensured, and the problem of electrical failure or poor contact is avoided.

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power generation device adaptive to illumination angle adjustment, which comprises a plurality of mounting frames, one side wall of each mounting frame is provided with a T-shaped groove, the other side wall of each mounting frame is fixedly provided with a T-shaped block, and the adjacent T-shaped blocks are matched with the T-shaped grooves in an inserted manner. The top surfaces of the mounting frames are rotatably connected with photovoltaic power generation panel bodies through hinge shafts, overturning assemblies are fixedly arranged in the middles of the mounting frames, protective blocks are arranged on the overturning assemblies, the mounting frames are mounted on the top surfaces of tripods, supporting pieces are fixedly arranged on the bottom surfaces of the tripods, and the lower ends of the supporting pieces are rotatably connected with bases; wherein a cleaning assembly is arranged on one mounting frame, and a cleaning roller is arranged on the cleaning assembly. The number of the photovoltaic power generation panel bodies can be conveniently increased or decreased to adapt to power generation requirements of different scales, assembly, disassembly and maintenance of the photovoltaic power generation panel bodies are facilitated, the use convenience and flexibility are improved, and the operation cost is reduced.

The invention relates to silver paste, a preparation method thereof and a photovoltaic cell. The silver paste can be used for the photovoltaic cell. The preparation method of the silver paste comprises the following steps: adding composite resin into a solvent to form an organic carrier; adding silver powder and a cross-linking curing mixing agent into the organic carrier, and stirring to obtain initial silver paste; adjusting the viscosity of the initial silver paste and / or the fineness of the initial silver paste to obtain silver paste; wherein the composite resin comprises hydroxyl modified polyester resin. The silver paste prepared through the preparation method of the silver paste has high adhesive force, the working stability of a photovoltaic cell can be improved, and the service life of the photovoltaic cell can be prolonged.

A preparation method of a carbon black-based composite conductive agent for an automobile lithium battery belongs to the technical field of new energy automobile lithium batteries, and comprises the following steps: depositing conductive carbon black on the surface and gaps of MOF-Ni3 (HITP) 2 by adopting a vapor deposition method to obtain MOF-Ni3 (HITP) 2 loaded carbon black, and then carrying out surface modification on the MOF-Ni3 (HITP) 2 loaded carbon black by adopting a spraying agent to obtain the carbon black-based composite conductive agent for the automobile lithium battery. The carbon black-based composite conductive agent is obtained. The spraying agent is prepared from water, polyvinyl alcohol, waterborne polyurethane, behenamidopropyl dimethylamine and fatty alcohol-polyoxyethylene ether. The carbon black-based composite conductive agent prepared by the invention can greatly improve the dispersibility of the conductive agent, improve the conductivity and the conductive stability in long-term use, has very good high-rate charge-discharge efficiency, and improves the rate capability of a lithium iron phosphate battery.

The invention relates to the technical field of electronic-grade sulfuric acid, and discloses a method for preparing electronic-grade sulfuric acid. Industrial-grade liquid sulfur trioxide is subjected to gasification, demisting, dehumidification and purification to prepare ultra-pure sulfur trioxide; absorbing sulfur trioxide by using electronic-grade sulfuric acid to prepare an electronic-grade sulfuric acid crude product; the electronic-grade sulfuric acid crude product is subjected to degassing, hydrogen type macroporous cation resin modification and continuous multi-group high-efficiency membrane combined filtration to obtain electronic-grade sulfuric acid; according to the modified hydrogen type macroporous cationic resin disclosed by the invention, the surface characteristics of the resin are changed through acylation reaction, so that the modified hydrogen type macroporous cationic resin shows better selectivity and affinity in the subsequent metal ion adsorption process; the introduced multi-sulfydryl functional group provides more adsorption sites for the resin, and the sites and metal ions can form a stable complex, so that the metal ions in a solution are effectively adsorbed and removed, and metal ion impurities in electronic-grade sulfuric acid are further reduced; the purity of the prepared electronic-grade sulfuric acid is 99.9999999%, the content of metal ions is only 5 ppt, and the electronic-grade sulfuric acid can meet the quality requirement of semiconductor-grade G5 of an ultra-large integrated circuit.

The invention discloses a chlorine-resistant polyamide composite nanofiltration membrane and a preparation method thereof. The composite nanofiltration membrane is composed of a polysulfone-based membrane, and a catechol intermediate layer and a polyamide desalination layer which are sequentially arranged on the polysulfone-based membrane, wherein the catechol middle layer comprises a plurality of catechol self-polymerization layers, and catechol is subjected to oxidation self-polymerization and then is constructed on the polysulfone base membrane layer by layer to obtain the catechol self-polymerization layers; and the polyamide desalination layer is constructed on the catechol intermediate layer through an interfacial polymerization reaction. The chlorine-resistant polyamide composite nanofiltration membrane comprises a polysulfone base membrane, a catechol middle layer and a polyamide desalination layer, the catechol self-polymerization middle layer is formed through a layer-by-layer construction technology, certain chlorine resistance is provided, meanwhile, the possibility that the middle layer falls off is reduced, and the stability of the composite nanofiltration membrane is enhanced; the tannic acid is added into a water-phase solution, so that the performance of the polyamide composite nanofiltration membrane is adjusted, and the polyamide composite nanofiltration membrane is endowed with relatively high chlorine resistance.

The invention discloses a sausage casing repairing component, which belongs to the technical field of sausage casing repairing, and comprises a U-shaped bracket, and a repairing sleeve piece is arranged at one end of the U-shaped bracket; a cavity channel of the repairing sleeve part is internally provided with a repairing annular inner supporting air bag which can extend to a broken hole in an inner cavity of the casing part and is expanded through blowing of an air compressor gun to apply force to the broken hole of the casing part for inner supporting; the outer wall of the peripheral side of the repairing sleeve part is sleeved with a repairing annular outer supporting air bag in a clearance mode, and the repairing annular outer supporting air bag can move to a broken hole in the position, aligned with the repairing annular inner supporting air bag, of the peripheral side of the casing part and expands through blowing of an external air pump to apply force to wrap and support the outer portion of the casing part broken hole patch. An overturning transmission mechanism for overturning a to-be-repaired broken hole of the casing piece to a position convenient to repair is arranged outside one end, far away from the casing piece, of the repairing sleeve piece. Through the design of inner and outer clamping and supporting, bonding between the patch and the casing piece is firmer, and the quality of the casing is improved.

The invention discloses an anti-fouling etching AG glass coating material and a preparation method thereof, and relates to the technical field of anti-fouling coating materials. A coating material of the anti-fouling and anti-etching AG glass consists of composite modified silicon dioxide sol and a high-performance polyurethane coating raw material, the composite modified silicon dioxide sol is prepared from graphene oxide modified particles, dispersed silicon dioxide sol and a low-surface-energy solution, graphene oxide modified particles and a low-surface-energy solution are used for synergistically modifying dispersive silicon dioxide sol to obtain composite modified silicon dioxide sol, then under the action of a high-performance polyurethane coating raw material, the wear resistance and the hydrophobic antifouling property of the coating material are further enhanced, and meanwhile, the coating material also has good light transmittance and is suitable for being used in the field of coating materials. And the excellent treatment effect on AG glass spraying is achieved.

The invention discloses a wire hanging device suitable for unmanned aerial vehicle power pay-off, and relates to the technical field of unmanned aerial vehicle power pay-off, the wire hanging device comprises an unmanned aerial vehicle body and a support, and a pay-off assembly is arranged in the support. When the device is used, a first forward and reverse motor is started, a connecting rod and a long gear are driven to rotate, two toothed plates are driven to move relatively, a first wave clamp and a second wave clamp move relatively, two arc-shaped clamps move relatively, an electric wire is clamped, and double clamping and fixing of the electric wire are achieved. The wave-shaped characteristic of the first wave clamp and the second wave clamp can generate more contact points, the wave crests and the wave troughs can be tightly attached to the surface of the electric wire, the friction force to the electric wire is remarkably increased, the effects of buffering and dispersing external force can be achieved, and the possibility that the electric wire falls off is reduced. The rubber nails and the rubber gaskets effectively increase tightness and play a role in protection, and meanwhile the two sets of wire guide wheels limit the electric wire.

The invention provides a metal organic framework composite adsorbent, a preparation method thereof and a hemoperfusion device, and belongs to the technical field of blood purification adsorption materials. The metal organic framework composite adsorbent provided by the invention is a metal organic framework material-polysulfone material composite sphere, the metal organic framework material has excellent adsorbability to various toxins, and the polysulfone material has good biocompatibility, mechanical strength, processing adaptability and sterilization capability; therefore, the metal organic framework composite adsorbent has good blood compatibility and toxin adsorbability, is less in adsorbent particle falling, and is suitable for the field of whole blood perfusion. The result of the embodiment shows that the metal organic framework composite adsorbent provided by the invention has excellent adsorption performance on p-cresol sulfate, indoleacetic acid, bilirubin, bile acid and endotoxin, and shows excellent blood compatibility.

The utility model relates to a target material fixing device for a vacuum coating machine, relates to the technical field of vacuum coating, and aims at solving the problem that a traditional fixing device is poor in flexibility. The target material fixing device comprises a bottom frame, two fixing bases are arranged on the bottom frame and oppositely arranged on the bottom frame, and a target material fixing area is formed between the two fixing bases; a driving mechanism used for synchronously driving the two fixing seats is arranged on the bottom frame, the driving mechanism comprises a supporting plate, a bidirectional lead screw and a servo motor, the supporting plate is connected to the bottom frame, the bidirectional lead screw is rotationally connected to the supporting plate, the output end of the servo motor is connected to the end of the bidirectional lead screw, and the output end of the servo motor is connected to the end of the bidirectional lead screw. The two-way lead screw is provided with two threaded ends opposite in rotating direction, the two fixing seats are in threaded connection to the two threaded ends of the two-way lead screw respectively, each fixing seat is slidably connected to the supporting plate, and the bottom frame is further provided with a translation mechanism used for moving the position of a target material. The application has the effect of improving operation flexibility and adjustability.

The invention discloses a probiotic hot air non-woven fabric and a preparation method thereof, and belongs to the technical field of non-woven fabrics, the key point of the technical scheme is that the probiotic hot air non-woven fabric is formed by compounding a hot air non-woven fabric and a probiotic microcapsule, the probiotic microcapsule is composed of a core material prepared from probiotic powder and a wall material wrapping the core material, and the wall material wraps the hot air non-woven fabric. The wall material is prepared from the following raw materials in parts by weight: 2 to 6 parts of sodium alginate, 2 to 8 parts of carboxymethyl-beta-cyclodextrin, 2 to 4 parts of dopamine, 0.15 to 0.32 part of sodium tripolyphosphate and 100 parts of water. The technical effect of improving the adhesive force between the probiotic microcapsule and the hot air non-woven fabric is achieved.

The invention belongs to the technical field of solid-state batteries, and discloses a preparation method of an all-solid-state battery. The preparation method comprises the following steps: preparation of a positive pole piece: preparing the positive pole piece from SIBS and a positive active material; preparing a negative pole piece: preparing the negative pole piece by using SIBS and a negative active material; preparing an electrolyte membrane: preparing the electrolyte membrane from the SIBS and an electrolyte; and pressing and packaging the positive pole piece, the electrolyte membrane and the negative pole piece to obtain the all-solid-state battery, and in the electrolyte membrane, the mass percent of the SIBS is 3-10%. In the preparation process of the all-solid-state battery, specific SIBS with good elasticity is selected as a binder, and the content of the SIBS in an electrolyte membrane is not less than 3%, so that volume expansion of an electrode in the charging and discharging process can be effectively relieved, pulverization and falling of an electrode material are reduced, and the stability of an electrode structure is maintained, thereby remarkably improving the cycling stability of the all-solid-state battery.

The invention relates to the technical field of gardening planting, in particular to a gardening seedling planter and method.The planter comprises a mounting frame, a seedling throwing part is mounted at the upper end of the mounting frame, a guiding part is arranged at the lower end of the mounting frame, a planting part is arranged at the lower end of the guiding part in a communicating mode, and a first frame is arranged on the right lower side of the planting part; three rectangular rods are arranged at the upper end of the first frame, the other ends of the three rectangular rods are slidably connected to the lower end of the mounting frame, the three rectangular rods are slidably connected with the front end, the rear end and the left end of the planting part respectively, a ditching part is arranged at the lower end of the mounting frame, and a folding part is mounted at the lower end of the mounting frame. According to the design, soil adhered to the outer ends of the three movable plates can be cleaned in time, the phenomenon of soil accumulation at the outer ends of the movable plates is effectively avoided, the probability that a large amount of soil at the edge of a planting pit is lost is effectively reduced, the probability that roots of planted seedlings are not completely buried is effectively reduced, and the planting effect is effectively guaranteed.

The utility model belongs to the technical field of medical supplies, and particularly relates to a bottle cap which comprises a cap body, at least one containing cavity is formed in the top of the cap body, the containing cavity penetrates through the top of the cap body, a rubber block is arranged in the containing cavity, and the end, located on the inner side of the cap body, of the rubber block is a convex arc face. The convex arc-shaped face protrudes out of the inner top face of the cover body, and the thickness of the top of the cover body is 0.5-2 mm. According to the utility model, the rubber block is arranged in the accommodating cavity, so that the probability that the needle head is possibly contacted with hard plastic in the puncturing process is reduced; the end of the inner side of the rubber block is arranged to be the convex arc-shaped face, so that the height of the rubber block is increased, the probability that the rubber block falls off is reduced, the contact area between the rubber block and liquid medicine is increased, the pressing force between the rubber block and the needle head is improved, and leakage of the liquid medicine is avoided.

The utility model relates to an anti-loose joint, in particular to a primary and secondary nut compression type anti-loose joint. A primary and secondary nut pressing type anti-loosening connector comprises a tubular connector body with two through ends, an outer limiting ring is circumferentially arranged in the middle of the outer wall of the connector body, a threaded connecting hole is formed in the connector body in a through mode, and an inner limiting ring is circumferentially arranged in the middle of the threaded connecting hole. The two ends of the inner wall of the connector body are each provided with a notch in the circumferential direction, the two ends of the threaded connecting hole are symmetrically and sequentially provided with a sealing ring, a gasket and an opening ring from inside to outside along the inner limiting ring, and the two sealing rings are embedded into the corresponding notches respectively. The utility model aims to provide a primary and secondary nut compression type anti-loose joint which is simple in structure, convenient to install and good in anti-loose effect.

The utility model provides an assembly type building curtain wall, which relates to the technical field of building curtain walls, and comprises a support frame, a connecting seat, a curtain wall body and a curtain wall body, a connecting hole is formed in the left end of the connecting seat; a threaded hole is formed in the connecting hole; stroke grooves are formed in the upper side and the lower side of the interior of the connecting base; a clamping piece is installed in the stroke groove in a sliding mode. A driven plate is fixedly mounted at the right end of the inner side of the clamping piece; a driven groove of an inclined structure is formed in the driven plate. Through mutual cooperation of the two structures, the stability degree of the suction cup assembly installed on the connecting base can be fully guaranteed, the probability that the suction cup assembly falls off is reduced, the stability of the curtain wall after assembly is improved, and the problems that a point support is usually installed on a support through a main bolt, the fixing mode of the point support is simple, and the installation cost is low are solved. Therefore, the problem that the stabilizing effect of the point support is ordinary is solved.

The invention discloses a method for preparing a polyphenylene sulfide-based membrane electrode in situ, which comprises the following steps: carrying out plasma treatment on polyphenylene sulfide cloth, soaking the polyphenylene sulfide cloth in an acid solution or an alkaline solution, cleaning and drying to obtain a hydrophilic polyphenylene sulfide membrane; then, a layer of PAN or PVP solution doped with rare earth ions or iron element ions is poured on the surface of the hydrophilic polyphenylene sulfide diaphragm, and after drying, the composite polyphenylene sulfide diaphragm is obtained; and performing laser engraving on the PAN or PVP polymer layer containing rare earth ions or iron-series element ions in the composite polyphenylene sulfide diaphragm by utilizing carbon dioxide laser engraving to form rare earth ion or iron-series element ion doped graphene, thereby obtaining the polyphenylene sulfide-based membrane electrode for alkaline electrolyzed water. The method has the advantages of low requirement on temperature, simplicity, feasibility, safety, controllability and low energy consumption, the electrode material is generated on the surface of the membrane in situ, and the possibility that the electrode falls off in the later use process is reduced.

The invention relates to the technical field of metal corrosion prevention, and particularly discloses a titanium alloy bolt surface aluminum coating coating method capable of improving corrosion resistance. A titanium alloy bolt surface aluminum coating coating method capable of improving corrosion resistance comprises the following steps that a titanium alloy bolt is subjected to cleaning and sand blasting pretreatment; the preparation method comprises the following steps: adding the aluminum powder and the benzaldehyde resin into the solvent, mixing and stirring, continuously adding the polytetrafluoroethylene micro powder, the diluent and the self-repairing microcapsule prepared in advance, and continuously stirring until the mixture is uniform, the prepared anti-corrosion aluminum coating is sprayed to the surface of the titanium alloy bolt, after the surface of the coating is dried, curing is conducted for 55 min to 65 min at the temperature of 180 DEG C to 200 DEG C, and the aluminum coating is obtained; the self-repairing microcapsule is prepared by mixing a microcapsule A and a microcapsule B, wherein the microcapsule A is prepared by wrapping a polyurethane prepolymer with polyvinyl butyral as a shell layer, and the microcapsule B is prepared by wrapping a curing agent support with polyvinyl butyral as a shell layer. The aluminum coating prepared through the method has the advantages of being good in corrosion resistance and durability.

The high-safety color-changing anti-counterfeit label comprises an offset paper substrate, a protective film and a waterproof belt, the protective film adheres to the upper surface of the offset paper substrate, a waterproof groove is formed in the outer ring of the lower surface of the offset paper substrate, and the waterproof belt arranged in a matched mode adheres to the interior of the waterproof groove. Through the arrangement of the water insulation belt, the possibility that the outer edge of the label is eroded by water vapor is reduced, the probability that the label is affected with damp and falls off is reduced, the safety and stability of the label are improved, the surface of the label is pressed in the surface adhering process due to the existence of the stress strip, and the surface of the label is not prone to falling off due to the existence of the stress strip. Therefore, the waterproof belt can be better attached to the surface of a commodity, the possibility that the waterproof belt falls off is reduced, and the safety performance of the label is improved.

The utility model relates to the technical field of valves, and discloses a check valve, which comprises a valve body, a valve core, a valve core, a valve core and a valve core, the aperture of the first through hole is larger than that of the second through hole, and a step surface is formed at the joint of the first through hole and the second through hole; the support is arranged in the first through hole and is provided with a first mounting through hole which is communicated with the first through hole and is coaxial with the first through hole; the valve clack is arranged in the first through hole and comprises a valve clack body and a valve clack handle arranged on one side of the valve clack body, and the valve clack body is in lap joint with the step surface and is suitable for sealing the second through hole; the valve clack handle is movably arranged in the first mounting through hole in a penetrating manner; and the elastic piece is arranged between the valve clack body and the support. According to the check valve, the elastic piece is arranged between the valve clack body and the support, the opening pressure of the check valve can be dynamically adjusted through the elastic performance of the elastic piece, and therefore the check valve can better adapt to fluid pressure and flow changes under different working conditions, and the performance of a pipeline system is optimized.

The invention discloses battery cell liquid injection equipment and a battery cell production line, a battery cell liquid injection tool comprises a bearing tray, a base, a support and a liquid injection assembly, the bearing tray is used for bearing a battery cell to be subjected to liquid injection, the bearing tray is placed on the base, the support is connected with the base, the support comprises a base plate moving in the vertical direction, the liquid injection assembly is arranged on the base, and the base plate is arranged on the base. The liquid injection assembly comprises a liquid injection needle, the base plate drives the liquid injection needle to move in the direction close to a liquid injection hole of a battery cell to be injected, a first limiting assembly is arranged on the bearing tray, a second limiting assembly is arranged on the liquid injection mechanism, and a third limiting assembly is arranged between the bearing tray and the base. The first limiting assembly, the second limiting assembly and the third limiting assembly are used for limiting the position of the liquid injection hole of the to-be-injected battery cell relative to the liquid injection needle, and the risk that the liquid injection needle punctures a non-liquid injection hole in the to-be-injected battery cell can be reduced.

The invention discloses equipment for establishing a mouse hemorrhagic shock resuscitation model. The equipment comprises a surgery operation table, a body temperature maintaining device, a puncture module, an in-vitro blood heat preservation device, an artery puncture device, a blood transfusion / bloodletting device, a blood temporary storage device, an arterial blood pressure monitoring device and a three-way device. According to the invention, venipuncture catheterization is not needed in the blood transfusion / letting process, the purposes of blood transfusion / letting and real-time arterial blood pressure monitoring can be achieved only through arterial puncture catheterization, and the retention of veins can not only reduce the difficulty of the operation, but also ensure the backflow of tissue blood after the operation, so that the injury caused by the operation is reduced. According to the in-vitro blood heat preservation device, the in-vitro blood can be kept at a constant temperature, and the death risk of mice caused by body temperature changes can be effectively reduced. According to the blood transfusion / bloodletting device, the blood transfusion / bloodletting speed can be manually controlled, the problem that the blood transfusion / bloodletting speed cannot be controlled by manual bloodletting can be effectively solved, and heart failure caused by rapid and massive blood transfusion is avoided.