365results about How to "Uniform adhesion" patented technology

The invention provides a preparation method of a bipolar plate of a redox flow battery, which comprises the following steps: adding a coupling agent into resin and graphite powder, so that one end of the coupling agent is wound with the resin, the other end of the coupling agent is chemically crosslinked with the treated graphite powder to form a crosslinked net-shaped three-dimensional structure, and meanwhile, adding a conductive polymer to increase a conductive path between flexible graphite; the high-density graphite paper on the upper side and the lower side of the bipolar plate can prevent electrolyte of the flow battery from entering the bipolar plate, and the situation that the performance of the bipolar plate is reduced due to the fact that resin is in direct contact with the electrolyte is avoided.

The invention discloses riboflavin photodynamic antibacterial hydrogel for a diabetes wound dressing as well as preparation and application of the riboflavin photodynamic antibacterial hydrogel, and belongs to the technical field of biomedical materials. The hydrogel is prepared from carbomer 941, rhizoma bletillae polysaccharide and carboxymethyl chitosan through physical and chemical bi-crosslinking, glutaraldehyde and carboxymethyl chitosan are added to form dynamic imine bonds, and the stability and adaptability of the hydrogel are enhanced. Meanwhile, the photosensitizer riboflavin is introduced, so that the hydrogel is endowed with photodynamic sterilization characteristics, efficient antibiosis is realized, and rapid healing of diabetic wounds is promoted. The hydrogel has excellent wound environment adaptability and adhesion performance, and is suitable for complicated wound surfaces of diabetes mellitus. The successful research and development of the invention provide reference for the development of novel photodynamic wound dressings, have wide application prospects, provide better treatment choices for diabetics, and are helpful for accelerating wound healing, reducing infection risks and improving the life quality of patients.

The invention belongs to the technical field of keel bending, and particularly relates to an automatic bending device for a light steel joist, which comprises a conveyor, a bending assembly is arranged above the conveyor, and the device is provided with the bending assembly, so that the light steel joist can be attached to the surface of the bending assembly to be subjected to pre-deformation bending treatment; the light steel joist is subjected to small-angle deformation before formal bending treatment, so that the resilience after edge folding can be reduced, the residual stress in the light steel joist can be released, the possibility of quality problems such as deformation and cracking caused by stress concentration is reduced, the structural strength and durability of the light steel joist are enhanced, and the service life of the light steel joist is prolonged. The stability and reliability of the whole structure are guaranteed, the internal stress distribution is more uniform and reasonable, so that the machining precision and the product quality are improved, the bending consistency of the light steel keel is guaranteed, manual intervention is not needed, the automation degree of the bending process is greatly improved, the labor intensity is relieved, and the production efficiency is improved.

The invention discloses a gene engineering exosome and a slow release method and application thereof, the gene engineering exosome is derived from human adipose-derived stem cells, si-tgfbr2 is loaded in the gene engineering exosome, the si-tgfbr2 is specific siRNA aiming at a Tgfbr2 gene, and the gene engineering exosome can regulate and control proliferation of VSMCs, inhibit transformation of the VSMCs from a contraction phenotype to a synthetic phenotype when the VSMCs are stimulated, and inhibit the growth of the VSMCs. According to the present invention, the gene engineering exosome can be used to maintain the normal structure and the function of the blood vessel, and the sustained release effect of the content in the gene engineering exosome can be achieved by wrapping the gene engineering exosome in the PHA biodegradable material, such that the local treatment concentration can be easily stabilized, the drug administration frequency can be easily reduced, the lasting time of the treatment effect can be easily prolonged, and the treatment gene can be effectively delivered to the target cell; the treatment effect is improved; when being used for modifying a small-caliber artificial blood vessel, the small-caliber artificial blood vessel can be improved in biocompatibility and functionality, and can be prevented from being implanted into the blood vessel for remodeling unbenign hyperplasia stenosis; the invention not only provides a new thought and method for the treatment of vascular diseases, but also has important clinical application value and popularization prospect.

The invention relates to the field of bag-type dust collectors, in particular to a bag-type dust collector for fiberboard production, which comprises a dust collector body, a top cover mounted at the top of the dust collector body, a dust collecting box mounted at the bottom of the dust collector body, a bag mounting plate mounted on the inner side of the dust collector body, and a dust collecting bag mounted at the bottom of the bag mounting plate. An air inlet pipe is mounted on the side face of the bottom end of the dust remover body, an air outlet pipe is mounted on the side face of the top cover, back-blowing dust removal mechanisms capable of moving up and down are mounted on the inner side and the outer side of the dust removal cloth bag, and a back-blowing lifting mechanism located on the inner side of the dust removal cloth bag is mounted at the bottom of the cloth bag mounting plate; a cloth bag bottom plate is installed at the bottom of the dust collection cloth bag, a bottom plate connecting rod is connected between the cloth bag bottom plate and the inner wall of the dust collector body, and a beating vibration mechanism located on the inner side of the dust collection cloth bag is installed at the top of the cloth bag bottom plate. While back-blowing dust removal is carried out, the primary layer can be repaired, and the situation that the primary layer is damaged and the filtering effect is affected is avoided.

The invention relates to a preparation method and application of a wall coating type enzyme-loaded microchannel reactor. The method comprises the following steps: mixing tetramethyl orthosilicate, methyltrimethoxysilane and methanol to obtain a solution A; deionized water, polyethylene glycol, a sodium fluoride aqueous solution and a dialyzed lipase solution are mixed to obtain a solution B, the solution B and the solution B are mixed for 3-10 minutes in an ice bath environment to obtain a solution C, the solution C is introduced into the pretreated microchannel through an injection pump, after incubation is conducted for 10-60 minutes, nitrogen is adopted for purging, redundant sol-gel is removed, and then the solution C is put into a drying oven to be dried; the catalyst is used for hydrolysis reaction of grease and various ester exchange and esterification reactions. The method can be carried out in a mild environment, and has higher conversion rate and shorter reaction time.

The invention provides a sandwich structure MCMB-Si-C silicon-carbon negative electrode material and a preparation method and application thereof.The preparation method comprises the steps that 1, pitch serves as a raw material to prepare mesocarbon microbeads, by means of solid-liquid interface pushing force in the mesocarbon microbead growth process, uniform attachment of nanometer silicon to the surfaces of the mesocarbon microbeads is achieved through a one-step self-assembly method, and the mesocarbon microbeads are formed; the MCMB (at) Si silicon-carbon negative electrode material taking the mesocarbon microbeads as the core is obtained. And (2) coating the surface of the silicon-carbon negative electrode material with a layer of carbon material to construct the MCMB-Si-C silicon-carbon negative electrode material with a sandwich structure, and forming a compact carbon layer on the outermost layer after high-temperature carbonization treatment by using a liquid-phase coating process, so that the double functions of a buffer layer and a conductive layer can be achieved. The composite material is composed of mesocarbon microbeads as a core, nano silicon as an intermediate layer and a compact carbon layer as an outermost layer. The sandwich type buffer structure effectively improves the volume change of the negative electrode in the lithium intercalation / lithium removal process, endows the silicon-carbon negative electrode material with the sandwich structure with excellent cycle stability and rate capability, and is beneficial to formation of a more stable solid electrolyte membrane.

The invention discloses automatic temperature control reflow soldering equipment for a circuit board, and belongs to the technical field of circuit element soldering equipment.The automatic temperature control reflow soldering equipment comprises a solder joint mechanism, the solder joint mechanism comprises a box body fixed to a bottom plate, a dispensing needle cylinder connected with a driver is arranged on the box body, and a first motor is fixedly installed at the bottom end of the inner wall of the box body; an output shaft of the first motor extends to the reciprocating lead screw, the two ends of the reciprocating lead screw are each provided with a first sliding block which moves in the opposite direction in a spiral transmission mode, a movable plate connected with an air cylinder is installed at the top end of each first sliding block, and a piston rod on the air cylinder sequentially extends to the protruding part and the X-axis telescopic rod; the two ends of the protruding part are connected with the second sliding blocks through swing rods. The technical problems that in the prior art, a reflow soldering heating furnace does not have the function of soldering a special-shaped circuit board, the cooling adjusting performance is poor, the reflow soldering quality is not improved, and the working efficiency is improved can be solved.

The invention provides a tungsten and titanium nitride / titanium selective etching solution which comprises the following components in percentage by mass: 5%-30% of an oxidizing agent, 0.5%-10% of an alkaline etching agent, 0.1%-1% of a tungsten corrosion inhibitor, 0.01%-0.05% of a surfactant and the balance of deionized water. According to the etching solution disclosed by the invention, the etching on W can be reduced while the high etching rate of TiN / Ti is maintained.

The invention relates to the technical field of culvert pipe hoisting equipment, in particular to anti-cracking reinforced concrete culvert pipe machining hoisting equipment which comprises a hoisting platform, the hoisting platform is provided with a cage body hoisting mechanism for rapidly transferring a culvert pipe reinforcement cage, and the cage body hoisting mechanism is provided with an anti-shaking deviation rectifying mechanism for keeping the stability of the reinforcement cage. An anti-corrosion soaking mechanism for soaking the reinforcement cage to improve the corrosion resistance is arranged on the hoisting platform, a cage body conveying mechanism is arranged on the side face of the hoisting platform, the anti-shaking deviation correcting mechanism comprises a fixed protruding block fixedly installed at the end of a steel wire sling, and a plurality of branch steel cables are arranged on the fixed protruding block in the circumferential direction in an array mode. According to the device, the anti-shaking deviation rectifying mechanism is arranged, and a limiting convex block and a telescopic round pipe are matched with each other, so that a steel wire sling can be continuously and effectively limited in the hoisting process, the culvert pipe reinforcement cage can be effectively prevented from greatly swinging due to inertia, and a worker does not need to carry out auxiliary limiting on the culvert pipe reinforcement cage below.

The invention discloses a plaster coating device and method with a cooling function, and relates to the technical field of coating machines. A supporting plate is arranged at the center of the top of the base, a stabilizing frame is arranged at the top of the base, a pressing roller assembly is arranged on the right side of the top of the base, a fixing plate is arranged on the edge of the right side of the top of the base, and a collecting roller is arranged in the fixing plate. A spray gun is promoted to spray plaster raw materials to the top of plaster base cloth in a wave shape to avoid center accumulation, so that the raw materials are conveniently and uniformly dispersed at the top of the base cloth when the compression roller assembly rotates and extrudes the plaster raw materials, and the raw material allocation difficulty of the compression roller assembly is reduced; the overall use effect of the finished product is reduced due to non-uniform distribution of plaster raw materials on the surface of the base cloth.

The invention belongs to the technical field of resin polymerization additives, and particularly relates to an antioxidant type suspended emulsion terminator for PVC (polyvinyl chloride) and a preparation method thereof, the antioxidant type suspended emulsion terminator comprises the following raw material components in parts by mass: 5-30 parts of phenolic antioxidant; 5 to 20 parts of a thioester antioxidant; 0.1-5 parts of an ultraviolet light absorber; 0.1 to 5 parts of a chain terminator; 1-10 parts of a heat stabilizer; 0.1 to 7 parts of a stabilizer; 0.1 to 5 parts of an emulsifier; 0.1-5 parts of a wetting dispersant; according to the invention, through the combination of the selected main and auxiliary antioxidants and the combination of the ultraviolet light absorber and the heat stabilizer, the defect structure of PVC is improved at the end of PVC polymerization, and meanwhile, the combination of the main and auxiliary antioxidants can quickly decompose peroxide and hydroperoxide at the later stage of processing; compared with the prior art, the whiteness and thermal stability of PVC in the early stage are good, the anti-yellowing effect and the long-term aging resistance of PVC in the later processing are more emphasized, the performance of PVC in the dynamic thermal stability is improved, and the volume impedance and the initial coloring are low.

The invention discloses full-automatic noodle making equipment and a noodle making method, and relates to the technical field of noodle makers. The full-automatic noodle making equipment comprises a frame body, a flour stirring barrel is fixed to one end of the frame body, a first driving motor is installed at the lower end of the flour stirring barrel, the first driving motor extends into the flour stirring barrel to be fixedly connected with a flour stirring frame, and a barrel cover is installed at the upper end of the flour stirring barrel; a discharging pipe is fixed to one side of the lower end of the flour stirring barrel and corresponds to the flour pressing rollers, the multiple flour pressing rollers are installed in the frame body, two symmetrical cutting rollers are installed on the side, away from the flour pressing rollers, of the frame body, cutting gears are fixed to one ends of the cutting rollers and meshed with the cutting rollers, and adjusting assemblies are arranged between the cutting rollers and the flour pressing rollers. A flour scattering mechanism is arranged between the conveying belt II and the frame body. Through the flour scattering mechanism, uniform contact and attachment of noodles and flour are facilitated, the situation of adhesion of the noodles and the conveying belt or mutual adhesion of the noodles is reduced, uniform attachment of the noodles and the flour is facilitated, adhesion is reduced, and processing and production of the noodles are facilitated.

The invention relates to the technical field of coatings, in particular to a fluorescent wear-resistant coating as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, putting silicon carbide powder into an ethanol solution containing a silane coupling agent, stirring and reacting, and after the reaction is completed, sequentially cleaning and drying to obtain activated silicon carbide; s2, mixing the activated silicon carbide with fluorescent powder, adding water and a dispersing agent, and stirring and grinding to obtain silicon carbide composite slurry; and S3, mixing waterborne polyurethane, the silicon carbide composite slurry and an auxiliary agent, performing dispersion treatment to obtain slurry, and grinding the slurry to obtain the fluorescent wear-resistant coating. The prepared fluorescent wear-resistant coating can keep a fluorescent effect for a long time and has excellent wear resistance.

The invention discloses a method for improving the bonding fastness of an aramid fiber rope, which comprises the following steps: S1, after secondarily twisted aramid fiber passes through a first drafting unit by a yarn storage frame, dipping the aramid fiber in a bath glue solution, and then passing through a drying oven H1 of 100-130 DEG C; s2, after coming out of the drying oven H1, sequentially passing through a second drafting unit, two-bath glue solution dipping and a drying oven H2 with the temperature of 180-200 DEG C; and S3, after being discharged from the drying oven H2, sequentially passing through a drying oven H3 at the temperature of 200-240 DEG C, a fourth drafting unit, three-bath glue dipping, a drying oven H4 at the temperature of 120-180 DEG C and a fifth drafting unit, and finally entering a winding machine. Through the multi-step and multi-factor synergistic treatment method, the bonding fastness of the aramid fiber rope and the rubber is successfully improved, and remarkable effects are achieved in the aspects of adhesive force, glue scraping and the like.

The invention relates to a laser micro-hole machining method and laser micro-hole machining device.The laser micro-hole machining device comprises a workbench, a removing module, clamping assemblies and a drilling device.The two clamping assemblies can clamp and fix a workpiece and determine the drilling position, a sealing assembly ascends, deformation adjustment is conducted according to the shape of the bottom of the workpiece, and then the workpiece is removed; a coating area of a workpiece is surrounded, a material spraying unit conducts self-adjusting fixed-distance spraying on the coating area, then drilling equipment conducts laser drilling on the coating area of the workpiece, laser drilling can generate adhering slag on the bottom face of the workpiece, and the adhering slag can be attached to the surface of a chemical coating. The wiping unit wipes the chemical solvent on the inner side wall of the sealing assembly and the coating area, the adhering slag is cleaned up while the chemical coating is wiped, and finally the cleaning operation of the wiping unit is completed through the washing assembly, the water spraying assembly and the compression assembly.

The invention relates to the technical field of laser precision machining, and discloses a laser machining system and method for improving FPC drilling quality and efficiency, and the system comprises a nanosecond laser used for generating ultraviolet laser; the zoom beam expander is arranged at the outlet of the nanosecond laser and is used for adjusting the spot diameter of the laser beam; the plurality of reflecting mirrors comprise a reflecting mirror I, a reflecting mirror II, a reflecting mirror III and a reflecting mirror IV; the galvanometer is used for receiving and controlling the direction of the laser beam to realize drilling path control; the field lens is used for focusing the laser beam to the surface of the FPC to be processed; the processing platform is used for fixing the position of the FPC; and the lead mode laser drilling processing path is used for controlling the laser beam to cut in according to the lead path and completing the drilling operation. By adopting the lead mode technology, the system eliminates worries about the problems of laser switch delay, jump delay and the like while improving the jump speed, so that the production process is greatly simplified, the whole drilling process is more efficient and stable, and the production efficiency of the system is greatly improved.

The utility model discloses a yarn sizing and shaping device for textile processing, which comprises a working table, two groups of supporting legs are symmetrically arranged at two ends of the lower end face of the working table, a heating device is arranged at the center of the upper end face of the working table, and a first rotary driving piece is arranged at the center of the rear end of the heating device. A slurry storage box is arranged in the top end of the heating device, a rotating shaft is arranged at the center, close to the bottom end, in the slurry storage box, two sets of stirring plates are symmetrically arranged outside the rotating shaft, and two sets of second limiting rollers are symmetrically arranged at the two ends, close to the top, in the slurry storage box. One end of the rotating shaft is connected with the first rotating driving part, so that the first rotating driving part drives the rotating shaft and the stirring plate to rotate, the stirring plate stirs the size in the size storage box, the problem of surface condensation of the size in the size storage box is solved, and the size is evenly attached to the surface of yarn.

The invention discloses a preparation method of a regenerated colored polyester fiber, the regenerated colored polyester comprises regenerated polyester and pigment, the preparation method comprises the following steps: melting the regenerated colored polyester to obtain a regenerated colored polyester melt, the regenerated colored polyester fiber is prepared from the regenerated colored polyester melt through metering, spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding, and an oil agent adopted in the oiling step at least comprises mineral oil and iso-tridecanol polyoxyethylene ether. According to the invention, the static friction coefficient mu s and the dynamic friction coefficient mu d are adjusted through the oil agent to obtain the cohesive force suitable for the fiber, so that the wear resistance of the fiber is improved, broken filaments generated by breakage of the fiber in the spinning process are reduced, and the machinability of the fiber is improved.

The invention provides a modified graphite-based composite material as well as a preparation method and application of the modified graphite-based composite material. Comprising the following raw materials in parts by weight: 100 parts of graphite powder, 20-30 parts of polyethylene dioxythiophene, 10-20 parts of modified graphene, 10-20 parts of carbon nanotubes, 10-20 parts of epoxy resin, 1-5 parts of methyl methacrylate and 0.1-0.5 part of tert-butyl peroxybenzoate. Wherein the modified graphene is polyamide-amine functionalized graphene. The modified graphite-based composite material disclosed by the invention has good conductivity, air tightness and mechanical strength when being used as a bipolar plate of a fuel cell.

The embodiment of the invention provides a glue printing screen printing plate and a photovoltaic module, the glue printing screen printing plate comprises a plate body, the plate body is provided with a plurality of glue printing hole groups, and the plurality of glue printing hole groups are distributed on the plate body in an array; each glue printing hole set comprises a first mesh and a second mesh which are arranged in the first direction in a spaced mode. The glue printing hole group is used for printing two glue points distributed at intervals on the battery piece, so that the two ends of the welding strip in the first direction are fixedly connected with the battery piece through the glue points, it is guaranteed that the connection area between the welding strip and the glue point group is large enough, the connection strength of the welding strip and the battery piece is improved, and the stability of the welding strip is improved. Therefore, the reliability of the photovoltaic module is improved, the yield of the photovoltaic module is improved, the output power of the photovoltaic module is improved, and the service life of the photovoltaic module is prolonged.

The invention discloses an intravesical perfusion device and method, and relates to the technical field of bladder cancer operation recovery, in particular to an intravesical perfusion device and method.The intravesical perfusion device comprises a wrapping tube, a first air bag is installed on the outer surface of the wrapping tube, a perfusion tube is installed in the wrapping tube, and an extraction tube is installed at the side end of the perfusion tube; a second air bag is installed on the outer surface of the extraction pipe, transmission wires are installed at the side end of each first signal receiver and the side end of each second signal receiver, and the same control terminal is installed at the side end of each transmission wire. According to the intravesical perfusion device and method, the syringe, the three-way valve tube, the perfusion tube, the wrapping tube, the extraction tube, the second fixing base, the constant temperature regulator, the control terminal and other parts are designed in a matched mode, so that when the device is used, medicine can be evenly attached to the bladder wall, and therefore the adhesiveness of the medicine to the bladder wall is improved; therefore, the chemotherapy effect is improved.

This invention discloses a setting device and method for wrinkle-resistant and non-iron-feeling functional fabrics, belonging to the field of garment fabric processing technology. It aims to solve the problems of unstable fabric conveying tension, uneven dyeing, easy wrinkling during cooling, and inconvenient replacement of supporting components in existing setting devices. The device includes a frame, drive box, drying box, dyeing box, cooling box, conveyor belt, servo motor, drive shaft, and placement assembly. The dyeing box is equipped with a liquid storage chamber, hemispherical protrusions, and arc-shaped clearance grooves, which can achieve uniform dyeing of the fabric and recover excess working liquid. The cooling pipes in the cooling box form a temperature gradient to prevent a sudden drop in fabric temperature. The placement assembly can maintain stable tension as the fabric decreases and can also disconnect the supporting component from the drive shaft when little fabric remains, ensuring the conveying of the remaining fabric. It also facilitates the disassembly and replacement of the supporting component. This device is mainly used for setting processing of wrinkle-resistant and non-iron-feeling functional fabrics, improving setting quality and operational continuity, and reducing working liquid consumption.

The invention discloses oil painting rubbing auxiliary equipment, and relates to the technical field of oil painting rubbing, the oil painting rubbing auxiliary equipment comprises a box body and a mounting seat, a partition plate is fixedly arranged in the box body, a first conveying belt and a second conveying belt are arranged in the box body, and driving rollers and transmission rollers are arranged at the two ends of the first conveying belt and the two ends of the second conveying belt respectively; a plurality of mounting seats are fixedly arranged on the first conveying belt and the second conveying belt, a first placement plate and a second placement plate are arranged at the upper ends of the mounting seats at the positions, corresponding to the first conveying belt and the second conveying belt, of the first conveying belt and the second conveying belt correspondingly, and material scattering mechanisms are arranged in a first material scattering pipe and a second material scattering pipe correspondingly; paint mechanisms are arranged at the positions, corresponding to one side of the first material scattering pipe and one side of the second material scattering pipe, in the box body, through the material scattering mechanisms, toner and paint can be conveniently and evenly laid at the upper ends of rubbing paper and canvas, and then through an air drying pipe and a grinding roller, paint drying can be conveniently accelerated, and the dried paint can be evenly ground.

The utility model discloses a waterproof label coating coater which comprises a base, an unwinding wheel, a coating wheel, a cleaning sponge and an ultraviolet lamp, the unwinding wheel is arranged above the base, the coating wheel is arranged right above a conveying wheel, a coating box is arranged on the outer side of a fixing frame, the cleaning sponge is arranged on the outer side of an upper conveying roller, and the ultraviolet lamp is arranged on the outer side of a lower conveying roller. A mounting frame is arranged on one side of the coating wheel and fixedly mounted on the inner wall of the fixing frame, a carrier roller is arranged on the inner wall of the mounting frame, and an ultraviolet lamp is arranged at the top end of the interior of the mounting frame. Through the arrangement of the ultraviolet lamp, after the surface of the label is coated, ultraviolet drying is carried out through the ultraviolet lamp, it can be ensured that waterproof coating on the surface of the label is fully cured in a short time, a firm and durable waterproof layer is formed, and the waterproof performance of the label can be improved; the production efficiency can be remarkably improved, energy is saved, environment is protected, coating performance is kept, and product quality is improved.

The utility model provides a kind of for corn planting seed coating device, including frame body and install coating bin on frame body, the frame body is provided with stirring assembly, the stirring assembly includes driving motor and connecting shaft, spiral blade is fixedly installed on the connecting shaft, the driving motor is used to drive connecting shaft rotation.The utility model is communicated with extension ring on the upper end of cover plate, and integrates the drying structure of "blower fan+heating wire":blower fan inhales outside air downward into extension ring, heating wire heats air into hot air of suitable temperature, and hot air enters coating bin through grid plate, and seed in stirring is contacted fully, and water in coating agent is evaporated in real time, and coating agent is solidified rapidly and adhered on seed surface;Meanwhile, the air pipe on cover plate can discharge humidity and excess hot air in bin in time, maintain dry environment in bin, fundamentally avoid the problem of seed adhesion, reduce coating agent drop, guarantee coating stability.

The present invention relates to an electrode assembly bonding apparatus, comprising: a holder for holding a part of a laminated body in which a plurality of positive electrodes and a plurality of negative electrodes are alternately stacked with each other, and comprising a separator provided between each of the plurality of positive electrodes and the plurality of negative electrodes; a pressing part for bonding the laminate; and a laminate moving part for supporting or partially moving the laminate.

The invention discloses an aviation spray auxiliary agent for improving the rain wash resistance of plant protection fog drops and application of the aviation spray auxiliary agent. The invention provides a composition for plant protection aviation spraying. The composition comprises sodium dodecyl benzene sulfonate and polyethylene glycol monostearate. The invention also provides a plant protection aviation spray auxiliary agent which comprises the composition. The plant protection aviation spray auxiliary agent provided by the invention can significantly improve the rain wash resistance of fog drops on crop leaves during aviation pesticide application, thereby solving the key problems that the window period of pesticide application in rainy seasons in the south is short, and the pesticide liquid is very easy to wash away by rain water due to frequent heavy rainfall.

The present application relates to a display device and a manufacturing method thereof. The display device includes: a substrate including a display front portion, a display bending portion, a non-display bending portion, and a non-display rear portion; a display layer attached to the display front portion and the display bending portion; a member attached to the inner side of the substrate and including a connecting portion attached to the inner side of the non-display bending portion; and a window attached to the outer side of the display layer; wherein: the display layer is attached to the outer side of the substrate; at least a portion of the display bending portion forms a first substantially bending surface; at least a portion of the non-display bending portion forms a second substantially bending surface; the non-display rear portion forms a substantially flat surface; at least one of the connecting portions has a cross-sectional width that decreases in a direction away from the substrate; and at least two of the connecting portions contact each other to form a second substantially bending surface of the non-display bending portion.

The invention discloses a lignin-based liquid mulching film as well as a preparation method and application thereof, the liquid mulching film is prepared by taking lignosulfonate as a main raw material, compounding the lignosulfonate with chitosan and polyvinyl alcohol to form a basic solution, then carrying out crosslinking modification by epoxy chloropropane and complexing treatment by tetrakis hydroxymethyl phosphonium chloride, and finally adding nano kaolin and uniformly stirring. When in use, the fertilizer is diluted with water and then sprayed on the surface of soil to form a uniform covering film. According to the invention, a phenylpropane structure of lignosulfonate is fully utilized as a rigid framework of a polymer, and the obtained mulching film has good film-forming property, hydrophobicity and heat preservation and moisture conservation performance through a tackifying effect of chitosan, a toughening effect of polyvinyl alcohol and synergistic modification of the cross-linking agent and the complexing agent. The addition of the nano kaolin further enhances the infrared barrier ability of the mulching film and reduces heat loss at night.