380results about How to "Prevent volatilization" patented technology

The invention relates to the technical field of lithium battery cell disassembly and recovery, in particular to a lithium battery cell disassembly and recovery device. Comprising a bottom plate, a transparent shell is arranged at the top of the bottom plate, a baffle is arranged on the transparent shell in a sliding mode, and a feeding mechanism is arranged on the bottom plate and used for feeding waste lithium batteries into the transparent shell. The transparent shell is filled with nitrogen through the gas transmission mechanism, then the waste lithium battery is fed into the transparent shell through the feeding mechanism, the waste lithium battery can be automatically disassembled through cooperation of the clamping type conveyor, the ceramic saw blade, the push block, the detection mechanism and the absorption mechanism, electrolyte is automatically collected, time and labor are saved, and the working efficiency is improved. The method is simple in process and high in efficiency, electrolyte in the waste lithium battery can be prevented from volatilizing and combusting by disassembling the waste lithium battery in the nitrogen environment, the safety of the disassembling process is improved, and meanwhile, chemical reaction can be inhibited and generation of harmful gas can be reduced by utilizing the inert characteristic of nitrogen.

The invention discloses a preparation method of a flame-retardant anti-aging polyolefin plastic, and belongs to the technical field of polyolefin material processing.The preparation method comprises the steps that a modified anti-aging agent is mixed with a DOPO-based flame retardant modified by introducing isocyanate and epoxy groups, the mixture is added into a polyolefin material, during combustion, carbon formation is promoted by the phosphorus element, and the flame-retardant anti-aging polyolefin plastic is obtained. The flame retardant and nitrogen element synergistically play a flame-retardant role, meanwhile, epoxy groups in the flame retardant and carboxyl of polypropylene are subjected to a ring-opening reaction, the crosslinking degree of the material is enhanced, the modified anti-aging agent can effectively capture free radicals and inhibit oxidative degradation, and the mechanical strength and flame-retardant effect of the material are improved. According to the modification method, the anti-aging, high-temperature-resistant and flame-retardant properties of the polyolefin plastic are remarkably improved, the stability of the polyolefin plastic in high-temperature and severe environments is enhanced, the service life is prolonged, and the mechanical property and the thermal stability of the polyolefin plastic are improved.

The invention relates to the technical field of seawater desalination, in particular to a seawater desalination reverse osmosis membrane, a preparation method and application. The seawater desalination reverse osmosis membrane is prepared by the preparation method. The preparation method comprises the following steps: immersing the prepared support layer into a water phase solution, and then taking out the support layer adsorbing the water phase solution; immersing the support layer adsorbing the water phase solution into a first oil phase solution, and forming a primary reverse osmosis membrane through a first interfacial polymerization reaction; then, taking out the primary reverse osmosis membrane, and carrying out first drying treatment under a steam condition; and immersing the primary reverse osmosis membrane into a second oil phase solution, and carrying out a second interfacial polymerization reaction to form the seawater desalination reverse osmosis membrane. The application refers to the application of the reverse osmosis membrane for seawater desalination in the aspects of reclaimed water reuse, seawater desalination and brackish water desalination. According to the invention, the seawater desalination reverse osmosis membrane which simultaneously meets high desalination rate and high water flux can be prepared.

The invention relates to a manufacturing method of a novel high-temperature high-performance piezoelectric ceramic material, the manufacturing method is improved on the basis of a lead zirconate titanate piezoelectric ceramic material, the prepared ceramic material is suitable for a high-temperature environment through doping and process optimization, and the manufacturing method comprises the following steps: burdening and mixing, pre-sintering, secondary ball milling, granulating and forming, glue discharging and sintering. And machining, silver electrode firing and polarization testing are carried out. According to the manufacturing method of the piezoelectric ceramic material, components of the lead zirconate titanate piezoelectric ceramic are optimized, and neodymium oxide is doped into the lead zirconate titanate piezoelectric material, so that the performance of the ceramic is improved. By doping neodymium oxide, volatilization of the piezoelectric ceramic in lead can be effectively inhibited, deformation of the ceramic is reduced, and the piezoelectric ceramic is suitable for application and industrial production. Meanwhile, the Curie temperature of the ceramic is not obviously reduced, so that the preparation of the high-temperature piezoelectric ceramic is realized.

The invention relates to a GH5605 cobalt-based high-temperature alloy and a manufacturing method thereof, and belongs to the technical field of metal smelting. The GH5605 alloy comprises the following chemical components: 0.05%-0.15% of C, less than or equal to 1.0% of Si, 1.0%-2.0% of Mn, less than or equal to 0.03% of S, less than or equal to 0.03% of P, 19.0%-21.0% of Cr, 9.0%-11.0% of Ni, 14.0%-16.0% of W, less than or equal to 3.0% of Fe and the balance of Co and other inevitable impurities. According to the manufacturing method, the GH5605 electrode bar is smelted through a vacuum induction furnace, refining and argon protection processes are adopted, and it is ensured that the Mn element content of the electrode bar is qualified. And in the vacuum consumable remelting process, argon with the pressure of 2000-3000 Pa is filled, so that the vacuum degree is reduced, Mn element volatilization is effectively inhibited, and section component uniformity is achieved. Detection shows that the Mn content at the edge, the 1 / 2 radius and the central part of the steel ingot meets the technical standard. The process is simple and efficient, the quality of molten steel is not affected, the performance consistency and production stability of the GH5605 steel ingot are remarkably improved, and the process is suitable for the high-end application field.

The present invention relates to the technical field of forestry equipment, and specifically to a uniform fertilization device for garden tree maintenance, comprising a fertilization frame, wherein a fertilization component is provided at the top left end of the fertilization frame; the fertilization component comprises a guide plate fixedly installed inside the fertilization frame, wherein a telescopic square groove is provided through the top of the guide plate downward, and a telescopic square bar is slidably installed inside the telescopic square groove. A plurality of fertilizer injection rods of the fertilizer distribution component are inserted into the soil around the tree trunk by a driving component, and a fertilizer supply pump is started to transport the fertilizer inside the fertilizer box through a fertilizer pipe and a fertilizer supply pipe to the inside of the fertilizer distribution tank, and then the fertilizer is input into the inside of the plurality of fertilizer injection rods through a plurality of fertilizer distribution holes, and output from the plurality of fertilizer injection holes to the soil around the tree trunk, thereby completing the fertilizer application. Compared with the existing device, applying the fertilizer to the soil around the tree trunk can avoid the volatilization of the fertilizer, which is helpful for better absorption by the tree.

The invention provides a petroleum-based adhesive for a prebaked anode and a preparation method of the petroleum-based adhesive, and relates to the technical field of prebaked anode production. The preparation method of the petroleum-based adhesive comprises the following steps: mixing residual oil with an activating agent, then heating to carry out a first polymerization reaction, and cooling after the reaction to obtain a modified adhesive; and mixing the obtained modified binder with a fraction obtained after reduced pressure distillation of catalytic slurry oil, heating and melting, sealing, heating, carrying out a second polymerization reaction, and cooling after the reaction to obtain the petroleum-based binder for the prebaked anode. A two-stage thermal polymerization method is adopted, the first stage is a medium and low temperature thermal polymerization method, small molecules in residual oil are subjected to medium and low temperature thermal polymerization modification, and the carbon residue rate of asphalt can be increased; the second-stage thermal polymerization mainly enables part of unreacted groups of the first-stage modified adhesive to continue to be subjected to thermal polymerization reaction with the treated catalytic slurry oil at high temperature, and the high-residual-carbon low-viscosity adhesive coal pitch for the prebaked anode is obtained.

The utility model relates to a pest repelling device which comprises a device shell, an unwinding roller and a repellent storage tank are arranged on the device shell, a repellent discharging opening is formed in the lower end of the repellent storage tank, a repellent discharging roller is rotationally assembled at the position of the repellent discharging opening, a repellent dipping groove is formed in the periphery of the repellent discharging roller, and the repellent dipping groove is connected with the unwinding roller. A guiding channel is arranged between the repellent discharging port and the device shell, a shell belt outlet is formed in the device shell, and a repellent releasing belt which passes through the guiding channel and then is led out of the shell belt outlet is wound on the unwinding roller. The repellent release belt is in contact friction fit with the lower end of the repellent discharging roller so as to drive the repellent discharging roller to rotate when the repellent release belt is led out of the belt outlet of the shell, and in the rotating process of the repellent discharging roller, a repellent in a repellent dipping groove in the lower side of the repellent discharging roller flows to the repellent release belt. The technical problem that in the prior art, workers need to move pest repellents, and the workload is large is solved.

The utility model relates to the technical field of experiment table disinfection, in particular to a pharmaceutical experiment table disinfection device. The technical problems that when an experiment table is disinfected, an experimenter usually uses a rag to make contact with alcohol or a disinfectant to wipe and disinfect the experiment table, due to the fact that the experiment table needs to be disinfected in time after being used, the skin of the hands of the human body is prone to being injured when the palms make contact with irritant liquid such as the alcohol or the disinfectant frequently are solved. According to the technical scheme, the pharmaceutical experiment table disinfection device comprises an experiment table assembly, a driving assembly, a disinfection assembly, a cleaning assembly, a collecting assembly and an air drying assembly; compared with a traditional test bed disinfection mode, the disinfection device is installed on the test bed, after an experiment is completed, disinfectant is sprayed on the test bed by moving the disinfection device, and the surface of the test bed is wiped and cleaned after redundant disinfectant is scraped off, so that the hand is prevented from being in contact with the disinfectant, and the test bed is convenient to use. And the hand skin is prevented from being injured.

The invention provides a polyoxyalkylene ether macromonomer, a preparation method and application of the polyoxyalkylene ether macromonomer in preparation of a polycarboxylate superplasticizer, the polyoxyalkylene ether macromonomer is obtained by performing ring-opening polymerization reaction on an initiator and an alkylene oxide monomer under the action of a deprotonation reagent, and the initiator is allyl mercaptan or methyl and phenyl substituted allyl mercaptan. The polycarboxylate superplasticizer is obtained by free radical copolymerization reaction of an acid monomer and the polyoxyalkylene ether macromonomer under the action of an initiator and a reducing agent. Allyl sulfide is easy to generate uniform cracking of carbon-sulfur bonds in the polymerization process, polyoxyalkylene ether sulfydryl free radicals are generated, chain transfer is achieved, in the chain transfer process of the polyoxyalkylene ether macromonomer, a transferred chain still retains terminal double bonds and can participate in polymerization again, and the polyoxyalkylene ether macromonomer has a good polymerization effect. Therefore, polycarboxylic acid synthesized by using the polyoxyalkylene ether macromonomer has a certain branched topological structure, and cement paste dispersed by the polyoxyalkylene ether macromonomer has better workability.

The invention discloses a hot drawing machine for antibacterial polymer fiber production and a drawing method, relates to the technical field of antibacterial polymer fiber production, and solves the problems that the temperature distribution of hot air entering an air duct becomes non-uniform, the fiber fineness becomes non-uniform, and the production efficiency is improved due to the fact that mixing is non-uniform after an existing hot drawing machine is heated. And the overall strength is reduced. Comprising a base and a treatment bin arranged at the upper end of the base, and inlet-outlet grooves are formed in the two sides of the treatment bin in a penetrating mode; the treatment mechanism comprises a preheating assembly and a heating mechanism; a preheating cavity, a hot drafting cavity and a cooling cavity are formed in the treatment bin; by means of the design, fibers can be evenly heated, and uneven temperature distribution of hot air entering the air duct is effectively avoided; and when the fibers are longitudinally clamped and fixed and transversely stretched, the fibers can be limited, so that the fibers can be effectively prevented from deviating in the stretching process, and the production quality of the antibacterial polymer fibers is improved.

The invention relates to the technical field of metallurgy, and discloses a preparation method of a low-nitrogen-content and low-impurity high-purity vanadium-aluminum alloy, which comprises the following steps: step 1, controlling the purity, granularity and content of raw materials; 2, baking the raw materials and mixing the raw materials; step 3, charging; step 4, smelting; step 5, coarse crushing; sixthly, sand blasting treatment is conducted; and step 7, crushing, refining, screening, detecting and packaging. According to the method, the content of the added aluminum oxide cooling material is controlled, the vacuum environment is applied to the smelting process, argon is introduced until the pressure in the furnace is-0.08 MPa after vacuumizing is stopped, volatilization of elements in the alloy is reduced, and the beneficial effect that the loss of reaction heat and the influence of impurities such as oxygen and nitrogen in air on the purity of the alloy are avoided is achieved.

The invention relates to the technical field of furniture boards, and discloses an environment-friendly shaving board and a preparation method thereof.The environment-friendly shaving board is prepared from pentaerythritol glycidyl ether, hexadecyl dimethyl tertiary amine, epoxy chloropropane and the like, an obtained polyepoxy quaternary ammonium salt cross-linking agent generates multiple bonding effects with soybean protein, polyhydroxy phytic acid and graphene oxide, and the environment-friendly shaving board is prepared. The obtained environment-friendly flame-retardant mildew-proof adhesive and bamboo wood shavings are subjected to glue mixing and hot press molding, and the environment-friendly shaving board is obtained. Polyhydroxy phosphoric acid is rich in phosphorus element and has a flame-retardant effect; the quaternary ammonium salt group has a relatively good prevention and treatment effect on molds and chromotropic bacteria; the polyepoxy quaternary ammonium salt cross-linking agent is equivalent to a physical cross-linking point in the shaving board, and is nailed and anchored together with the bamboo shavings due to an adhesive, so that microcracks are prevented from further expanding into large cracks, the board blank is denser, and the reinforcing and toughening effects are achieved; the raw materials are wide in source, non-toxic, harmless, free of formaldehyde release and environment-friendly.

The embodiment of the present invention discloses a method and system for monitoring and managing the entire process of hazardous solid waste based on the cloud, which relates to the field of chemical environmental protection technology, can solve the problem of difficult supervision of hazardous solid waste, and also take into account the anti-leakage requirements in national standards, and realize timely alarm while preventing leakage. The present invention includes: receiving a closing signal uploaded by a storage container, and obtaining the location information and status information of the storage container; if the storage container receives an unlocking signal of the storage container before reaching a preset area, an alarm is issued; after the storage container reaches the preset area, verification information is received, and when the verification information passes the verification, an unlocking key is sent, and the verification information includes the identification information of the hazardous waste disposal unit and the current status information of the storage container. The present invention is suitable for the transportation, storage and treatment of hazardous solid waste.

The invention discloses a teaching experiment device for dendrobium officinale flavone extraction and concentration, and the device comprises a separation column which is vertically fixed on the side surface of a supporting frame, and the separation column is internally provided with a reaction liquid; a plurality of groups of sampling wheels are vertically arranged on the side, away from the supporting frame, of the separation column, the axes of the sampling wheels are vertically arranged, a driving assembly is arranged on the axis sides of the sampling wheels, and sampling grooves are formed in the upper portions of the sampling wheels; according to the invention, the sampling wheels are vertically arranged on one side of the chromatographic column, and each sampling groove can accurately enter different depth areas of the chromatographic column, so that sampling is carried out in different time periods of the concentration process. According to the device, a closed concentration environment and an automatic sampling mechanism are adopted, the problem of potential safety hazards caused by frequent opening and closing of the device is avoided, meanwhile, the experiment operation difficulty is reduced, the device is particularly suitable for being used in teaching experiments, and the safety of students can be effectively protected.

The invention discloses an impregnation liquid for an iron-based alloy magnetic powder core and an impregnation method based on the impregnation liquid. The impregnation liquid is prepared from the following components in percentage by mass: 5-15% of a metal organic compound, 5-20% of resin and 65-90% of an organic solvent. The impregnation method comprises the following steps that (1) iron-based alloy powder before insulation is put into impregnation liquid to be soaked, drying is conducted after soaking, and impregnated iron-based alloy powder is obtained; (2) carrying out insulation treatment on the iron-based alloy powder by using the nano silicon oxide dispersion liquid, and preparing an iron-based alloy magnetic powder core by using a powder metallurgy process after the insulation treatment, so as to obtain the iron-based alloy magnetic powder core; the obtained iron-based alloy magnetic powder core is cleaned and dried, and a to-be-impregnated iron-based alloy magnetic powder core is obtained; (3) completely immersing the iron-based alloy magnetic powder core into the impregnation liquid for soaking, and cleaning after soaking; and (4) heating and curing the cleaned iron-based alloy magnetic powder core, and naturally cooling to obtain the impregnated iron-based alloy magnetic powder core.

The invention belongs to the technical field of coatings, and particularly relates to an epoxy anticorrosive material and a preparation method thereof. The epoxy anticorrosive material is composed of a component A and a component B, wherein the component A is prepared from the following raw materials in parts by mass: 60-65 parts of epoxy resin I, 10-15 parts of zinc powder, 5-10 parts of talcum powder and 3-5 parts of a curing agent; the component B is prepared from the following raw materials in parts by mass: 75-80 parts of epoxy resin I, 4-5 parts of 2, 2, 6, 6-tetramethylpiperidinol, 1-1.5 parts of a light stabilizer M, 0.5-0.75 part of a light stabilizer N, 5-7 parts of acetone, 3-5 parts of a curing agent and 1-2 parts of a photo-thermal conversion agent. The epoxy anticorrosive material prepared by the invention can effectively improve the aging resistance and corrosion resistance of a coated material, so that the service life of the coated material is prolonged.

The invention discloses a latex enhanced immunoturbidimetry detection reagent, and relates to the technical field of medical detection. Comprising the following components: an inorganic salt, a chelating agent, a coagulant, an excipient, a nonionic surfactant, an antibiotic, a preservative, an antibody stabilizer, a suspending aid, latex microspheres labeled with antibodies, high-purity liquid paraffin, amphoteric organic ionic salt, amino-terminated water-soluble hyperbranched polyamide, 1, 2-propylene glycol, a dispersant, a dispersant, a dispersant, a dispersant, a dispersant and a dispersant. The kit comprises 1, 3-bis ((trihydroxymethyl) methylamino) propane, hexahydro-1, 3-bis ((trihydroxymethyl) methylamino) propane, hexahydro-1, 3-s-triazine and a buffer solution. The latex enhanced immunoturbidimetric detection reagent is good in stability, high in repeatability, good in sensitivity and long in shelf life.

The invention relates to the technical field of traditional Chinese medicinal material processing, and discloses traditional Chinese medicinal material crushing processing equipment which comprises a cooling mechanism, the cooling mechanism comprises a supporting frame, supporting legs are fixedly connected to the outer wall of the bottom of the supporting frame, a crushing box is fixedly connected to the inner wall of the supporting frame, and a box door is rotationally connected to the outer wall of the crushing box through a hinge; the outer wall of the bottom of the smashing box is fixedly connected with a discharging port, in the smashing process of traditional Chinese medicinal materials, liquid nitrogen is conveyed into an annular pipe through a liquid inlet pipe, then the liquid nitrogen is evenly sprayed on the traditional Chinese medicinal materials through a spraying head fixed to the outer wall of a first fixing block, the environment temperature in the smashing box can be effectively reduced through the operation, and the smashing efficiency is improved. A low-temperature crushing condition is created for the traditional Chinese medicinal materials, so that temperature rise caused by heat generated in the crushing process is prevented, volatilization and loss of effective components such as volatile oil and heat-sensitive components in the traditional Chinese medicinal materials are powerfully avoided, and the medicinal value and efficacy of the traditional Chinese medicinal materials are reserved to the maximum extent.

The invention relates to the technical field of fruit tree pesticide injection, and discloses a fruit tree pest control punching pesticide injection device which comprises a cylinder and further comprises a clamp, the clamp is arranged below the cylinder, a fixing ring is fixedly installed at the top of the clamp, and the fixing ring is fixedly connected to the surface of the cylinder in a sleeving mode; a circular groove is formed in the tail end of the cylinder body, and the turntable is rotationally mounted in the circular groove; the punching assembly is arranged on the rotating disc, and the punching assembly is used for punching the fruit trees; and the medicine injection plugging assembly is arranged on the rotating disc, and the medicine injection plugging assembly is used for injecting medicine to the fruit trees and plugging the holes. According to the fruit tree punching device, a fruit tree can be punched, during punching, a drill rod can move back and forth in a reciprocating mode, waste scraps generated during punching can be rapidly moved out of punched holes, the situation that the drill rod is clamped during punching is avoided, and then the using effect of the device is improved.

The invention discloses an ingredient stirring device for injection molding of automotive upholstery. The ingredient stirring device comprises a storage module, a feeding module, a mixing module, a conveying module and a control module. The storage module is provided with a plurality of groups of storage bins for storing particles, powder and liquid materials, the material level is monitored in real time through a sensor, and continuous feeding is guaranteed; a multi-section variable-diameter spiral feeding device and a weighing type metering device of the feeding module realize accurate conveying and proportional control of materials; the mixing module is composed of a mixing chamber, a dynamic stirring system and a temperature control device, the stirring system is driven by a servo motor, efficient and uniform mixing is achieved by adjusting the angle and speed of stirring blades, and the temperature control device keeps the temperature stable in the mixing process; the conveying module conveys the mixed materials to an injection molding machine through a discharging pipeline and a detachable filtering system; the control module integrates a touch screen and a Bluetooth module and is used for real-time monitoring and remote operation. The device is high in batching uniformity and high in feeding precision, and meets the requirements of injection molding production of automotive upholstery.

The multifunctional flame-retardant anti-dripping copolyester is composed of structural units represented by I, II, III or I, II, III and IV, when the structural unit [III] is represented by a formula A-W, the number of the structural units [III] is 0.1-99% of that of the structural units [I], and the number of the structural units [IV] is 0.1-99% of that of the structural units [I]; and when the structural unit [III] is of the structure shown in the formula X, the number of the structural units [III] is 0.1-0.99% of the number of the structural units [I], and the number of the structural units [IV] is 0.1-99% of the number of the structural units [I]. The invention also discloses a preparation method and application of the compound. The copolyester disclosed by the invention not only has excellent flame retardance, molten drop resistance, smoke suppression property and mechanical strength, but also has good functions of ultraviolet resistance, bacteria resistance, cationic dyeability and the like, has a good application prospect, and is beneficial to development of high-performance and high-added-value differential polyester products.

The invention relates to the field of flush toilets, in particular to an intelligent closestool with a urine sample detection function. Comprising a closestool body, a penetrating hole is formed in the front end in the closestool body, and a conical plate is rotationally arranged at the lower end of the penetrating hole through a motor and can open the penetrating hole to allow midstream urine to penetrate through when rotating; an expansion plate for preventing urine from escaping is arranged at the lower end of the cone plate, a pressure sensor is arranged at the upper end of the cone plate, and an infrared sensor is arranged above the through hole; a urine guide mechanism is arranged on the side, away from the through hole, of the expansion plate and comprises a drainage arc plate fixedly connected with the closestool body, one end of the drainage arc plate is in movable sealing connection with the expansion plate, and a sampling pipe with two through ends is arranged below the other end of the drainage arc plate; the sampling pipe is coaxially provided with a sampling mechanism, the sampling mechanism comprises a plug which is in dynamic sealing connection with the inner wall of the sampling pipe, and the plug is coaxially provided with a probe for analyzing urine. The device can accurately collect midstream urine samples, realizes household automatic urine detection, is high in detection precision, and can effectively avoid sample pollution.

The utility model provides a gluing device for sticky note production, and belongs to the technical field of sticky note gluing. The gluing device for sticky note production comprises a gluing structure and a filling structure, the gluing structure comprises a supporting frame, a glue groove and an elastic assembly, the glue groove is formed in the supporting frame, and the elastic assembly is arranged on one side of the glue groove and connected with the supporting frame; and the filling structure comprises a glue storage box, two connecting plates, a driving assembly, a baffle, a transfer box and two communicating frames, the two connecting plates are oppositely arranged on one side of the supporting frame, the glue storage box is fixedly connected with the connecting plates, the driving assembly is connected with the glue groove, and the two communicating frames communicate with the glue storage box. According to the gluing device for sticky note production, automatic glue filling is facilitated, manual observation operation is not needed, and the workload of operators is reduced.

The invention relates to the technical field of forest cultivation, and discloses a carya illinoensis fruit forest variety configuration method which comprises the following steps: configuring a main cultivation variety and a pollination variety in a fruit forest; preparing a pollination synergistic composition; the composition is sprayed at the initial stage of stigma exposure of female flowers of a main cultivated variety. The composition comprises a phenolic acid grafted carboxymethyl chitosan derivative, low methoxyl pectin, a calcium ion cross-linking agent, sugar alcohol chelated boron and spermidine. According to the method, an interfacial film with antioxidant activity is formed on the surface of the stigma by using the grafting modified matrix, so that the stigma browning is effectively inhibited, and the pollination period is prolonged; by constructing a calcium cross-linked low-methoxyl pectin interpenetrating network, an interfacial film is endowed with an intelligent degradation characteristic of enzyme-sensitive response to pollen, and protection at ordinary times and immediate dissolution after touching flowers are realized. According to the method, pollen is captured through static electricity, nutritional factors are released in a targeted mode, the pollination and fertilization efficiency is remarkably improved, the sterility risk in the flowering phase is relieved, and the yield and quality of carya illinoensis are improved.

This utility model relates to a liquid-filled oil-free gas sealing system, comprising a primary seal and a secondary seal disposed between the floating roof and the tank wall of a storage tank, and a burst-suppressing membrane disposed between the primary and secondary seals. The primary seal includes an annular sling installed on the side of the floating roof and located between the floating roof and the tank wall; a liquid-filling pipe is disposed within the annular space between the sling and the floating roof; and a liquid-filling tube is disposed on the liquid-filling pipe. The secondary seal includes a pressure plate fixed at its lower end to the top of the outer ring of the floating roof; a sliding piece fixed at the upper end of the pressure plate and pressed against the tank wall by the elasticity of the pressure plate; and a barrier membrane disposed on the back of the pressure plate. The upper and lower ends of the burst-suppressing membrane are connected to the sliding piece and the side of the floating roof, respectively; the middle of the burst-suppressing membrane is kept parallel to the vertical tank wall by its own weight. This liquid-filled oil-free gas sealing system of the utility model has good sealing effect, low oil and gas loss, and good safety.

The invention provides an acid etching treatment method of an aluminum alloy for anodic oxidation and the aluminum alloy subjected to acid etching treatment. The acid etching treatment method comprises the following steps: S1, carrying out dipping treatment on the aluminum alloy by adopting a surface treatment solution to obtain the dipped aluminum alloy; and S2, the aluminum alloy subjected to dipping treatment is washed, and acid etching treatment of the aluminum alloy for anodic oxidation is completed. The aluminum alloy is subjected to dipping treatment through the surface treatment liquid, a clean and uniform aluminum alloy surface is obtained, favorable conditions are created for continuous and uniform growth of a subsequent anodic oxidation film layer, and introduction of anodic oxidation defects is effectively reduced. Compared with a traditional alkali etching and bright dipping process, the acid etching treatment method for the aluminum alloy avoids the problems of large aluminum alloy loss and surface intergranular over-corrosion induced by alkali etching, the flatness and compactness of a subsequent anodic oxide film can be effectively improved, the anti-corrosion performance and surface quality of the aluminum alloy anodic oxide film layer are improved, and the service life of the aluminum alloy anodic oxide film layer is prolonged. And the production efficiency and the product quality are greatly improved.

The invention provides flame-retardant tread rubber as well as a preparation method and application thereof. The flame-retardant tread rubber is prepared from the following raw materials in parts by weight: 100 parts of matrix rubber, 24-35 parts of a composite flame retardant, 40-100 parts of filler, 1-4 parts of a silane coupling agent, 2-6 parts of an anti-aging agent, 1-3 parts of sulfur, 1-3 parts of an accelerant, 1-3 parts of stearic acid and 3-5 parts of zinc oxide, the composite flame retardant comprises a halogen flame retardant and an inorganic flame retardant, the inorganic flame retardant comprises an inorganic coating flame retardant, and the inorganic coating flame retardant comprises an antimony trioxide core and a molybdenum disulfide coating layer coating the surface of the antimony trioxide core. In the flame-retardant tread rubber disclosed by the invention, a molybdenum disulfide coating layer in the inorganic coating flame retardant can improve the stability of antimony trioxide at a high temperature, and can enhance the interfacial compatibility with a non-polar rubber matrix at the same time, and the synergistic reaction with the halogen flame retardant further improves the flame-retardant effect; therefore, the flame retardancy of the rubber is improved, and excellent mechanical properties are kept at the same time.

The present application relates to the technical field of carbon dioxide capture, and discloses a carbon dioxide capture method, which comprises the following steps: (1) contacting raw gas with a perfluorinated solvent under a pressure of 2-7 MPa to perform absorption, so as to obtain purified gas G i and absorption liquid X containing carbon dioxide and nitrogen i ; optionally, the absorption liquid X i is at least divided into A i and B i parts, wherein the A i part is returned to step (1) to be added into the raw gas; the absorption liquid X i or the B i part is subjected to desorption, so as to obtain regenerated perfluorinated solvent Z i and desorption gas J containing carbon dioxide and nitrogen i ; (2) judging the carbon dioxide concentration in the desorption gas J i , when the carbon dioxide concentration in the desorption gas J i is less than 90 wt%, the desorption gas J i is used as the raw gas, and the step (1) is repeated. The method in the present application uses the perfluorinated solvent as the carbon dioxide absorbent, and can reduce the energy consumption of regeneration by pressure reduction, and is suitable for industrial popularization.

The invention relates to a method for integrating supercritical CO2 extraction (SCE) and a microcapsule technology to be applied to citrus combined medicinal materials, the effective component is essential oil, three factors including pressure (P), temperature (T) and time (t) are optimized, and then microencapsulation is carried out. The extracted essential oil contains a plurality of pharmacological active ingredients and has a unique fragrant smell. According to the essential oil extraction optimization process of the combined medicinal material, a fitted equation with a very high correlation coefficient is obtained through optimization fitting of a total extraction rate equation, and the essential oil extraction optimization process of the combined medicinal material has a great promotion effect on essential oil extraction of the citrus combined medicinal material in a Chinese patent medicine or health-care product preparation process. The extracted essential oil of the citrus combined medicinal material can be wrapped in a multi-layer structure through a microencapsulation process, and component volatilization and oxidation are prevented.