228results about How to "Easy to spread" patented technology

The invention relates to the technical field of MOS (metal oxide semiconductor), and discloses a shallow-channel super-junction MOS device and a preparation process thereof, the shallow-channel super-junction MOS device comprises a drain electrode, a source electrode, a semiconductor epitaxial layer, a grid electrode and a grid oxide layer covering the surface of the grid electrode, and the semiconductor epitaxial layer comprises an N substrate layer and a drift layer; a P well layer, a P-layer II and an N well layer are formed in the drift layer through ion implantation; the cross section of the grid electrode is T-shaped; a first P-layer is formed in the N well layer through ion implantation, and a narrow heavily doped N layer is formed in the drift layer and located between two adjacent second P-layers through ion implantation. After the gate voltage is accessed, a charge channel is formed in the P-layer 2, so that the N-well layer and the drift layer can form a path, and the existence of the P-layer 1 can inhibit the collection of charges flowing in the N-well layer to the gate region, so that the number of parasitic charges can be greatly reduced, and the response speed of the MOS semiconductor device is improved.

The invention discloses a preparation method and sodium storage application of a sodium-enriched sodium ferric sulfate composite material. The preparation method comprises the following steps: carrying out low-speed ball milling on iron-based sulfate and dispersed CNTs (Carbon Nanotubes), carrying out vacuum drying, carrying out heat treatment, and naturally cooling to room temperature to obtain FeSO4 / CNTs; the preparation method comprises the following steps: mixing FeSO4 / CNTs and anhydrous Na2SO4 according to a molar ratio of Na to Fe of 7: 5.5, carrying out low-speed wet ball milling, carrying out vacuum drying, and grinding to obtain Na2SO4 / FeSO4 / CNTs; and compacting Na2SO4 / FeSO4 / CNTs, placing the Na2SO4 / FeSO4 / CNTs in a tubular furnace, preserving heat at 350-400 DEG C for 10-24 hours, cooling to room temperature, and grinding to obtain the Na7Fe5.5 (SO4) 9 / CNTs composite material. The Na7Fe5.5 (SO4) 9 positive electrode material disclosed by the invention has good sodium storage specific capacity, excellent rate capability and stable long cycle life.

The utility model relates to the technical field of grate coolers, and discloses a grate cooler waste heat recovery system which comprises a machine body, a feeding bin and a star-shaped discharger are arranged on the machine body, an obliquely-arranged grate plate is arranged in the machine body, the left end of the grate plate is higher than the right end of the grate plate, the left end of the grate plate is connected with the machine body in a rotating mode, and a discharging port is formed in the right side wall of the machine body. The top of the machine body is connected with an air outlet pipe; the air outlet pipe is connected with the waste heat recycling box and the cleaning box, and an air blower is connected to the outer side wall of the machine body. A coil pipe is arranged in the waste heat recycling box, the top of the coil pipe is connected with an air outlet pipe, the bottom of the coil pipe extends into the cleaning box, an air outlet branch pipe is arranged at the bottom of the inner side of the cleaning box and connected with an air outlet spray head, and the side wall of the waste heat recycling box is connected with a first water inlet pipe and a first water outlet pipe. The heat recovery efficiency is higher, heat in hot air is in full contact with water, the heat exchange efficiency is effectively improved, and the manufacturing cost is saved.

The invention relates to the field of bamboo shoot processing, in particular to high-temperature disinfection equipment for wild bamboo shoot processing, which comprises a base, a disinfection cylinder, a water outlet pipe I and the like, a disinfection cylinder is mounted on the base; a heating pipe is arranged in the disinfection cylinder; the disinfection cylinder communicates with a water outlet pipe I; an electric valve is arranged in the first water outlet pipe. Bamboo shoot strips are pressed into water through cooperation of a first plugging disc and an intercepting net, then the bamboo shoot strips are stirred through a stirring rod, bamboo shoot scraps float upwards after being separated from the bamboo shoot strips and are located above the first plugging disc, a first fan-shaped through groove is plugged through a second plugging disc, and the bamboo shoot scraps can only be located above the first plugging disc; and finally, the water and the bamboo shoot scraps above the plugging disc I flow into external storage equipment through a water outlet pipe II, so that the bamboo shoot scraps in the bamboo shoots are removed, and the situation that storage of the bamboo shoots is affected by microbial contamination, moisture transfer, enzymatic reaction, chemical reaction and other factors easily due to the boiled bamboo shoot scraps after subsequent high-temperature disinfection of the bamboo shoots is prevented. Therefore, the overall quality of the bamboo shoots is influenced.

The invention discloses an organic silicon composition, a preparation method and a thermal interface material, and relates to the technical field of thermal interface materials. The organic silicon composition comprises a polysiloxane matrix, a heat-conducting inorganic filler, a catalyst and a tackifier, the polysiloxane matrix is prepared from divinyl terminated polydimethylsiloxane and polydimethylsiloxane containing hydrogen at the end side; the content of vinyl in the polysiloxane matrix is Xmol; the content of hydrogen atoms bonded with silicon atoms in the polysiloxane matrix is Ymol; the mass percent of the heat-conducting inorganic filler and the polysiloxane matrix is 70%-100%; the ratio of the mass of the catalyst to the sum of the mass of the polysiloxane matrix and the mass of the tackifier is 0.1%-1%; the tackifier comprises a hydrogen-containing silicon resin grafted acrylic ester tackifier; the content of vinyl from the tackifier in the composition is Zmol; wherein the ratio of X to Y is 1: (1.5-6), and the ratio of Z to (Y-X) is (0.01-0.6): 1. The organic silicon composition provided by the invention has high bonding performance and high thermal conductivity after being cured.

The utility model belongs to the technical field of down filling machines, and particularly relates to an automatic down filling machine which comprises a down filling machine body, a down drawing pipe is arranged on one side of the down filling machine body, a down outlet pipe is arranged on the side face of the down filling machine body, and an observation window is formed in the upper side of one side of the down outlet pipe of the down filling machine body. Supporting rods are symmetrically arranged on the two sides of the down filling machine body, fixing rods are arranged on the upper sides of the supporting rods, clamping rods are arranged on the lower sides of the fixing rods, inserting rods are symmetrically arranged on the upper sides of the clamping rods, the inserting rods penetrate through the fixing rods to the upper sides and are provided with springs, and handle rods are arranged at the upper ends of the inserting rods. A quilt is clamped between the supporting rod and the clamping rod, the spring pulls the handle rod, the handle rod pushes the inserting rod downwards, the inserting rod pushes the clamping rod downwards to press the quilt, the side of the quilt is adjusted, the quilt is overall unfolded, manual unfolding is not needed, filling is convenient, down feather can spread in the quilt conveniently, people only need to conduct auxiliary smoothing on the quilt, and the down feather filling efficiency and effect are improved.

The utility model relates to the technical field of fertilizer application devices, and provides a tea planting fertilizer application device which is convenient for spreading granular fertilizer, has better fertilizer application effect and stronger flexibility, and comprises a fertilizer application barrel, a bottom plate, universal wheels with locks, a screen, an anti-adhesion component, a blanking hopper, a blanking pipe, a blowing component, a fertilizer application pipeline, an extension pipeline and an adjusting component, the bottom plate is fixedly connected to the fertilizing barrel, the universal wheels with the locks are fixedly installed on the bottom plate, the screen is fixedly connected to the inner side wall of the fertilizing barrel, the anti-adhesion assembly is arranged on the fertilizing barrel and used for preventing granular fertilizer from being adhered into blocks, the discharging hopper is fixedly connected to the fertilizing barrel, and the discharging pipe communicates with the discharging hopper. The material blowing assembly is arranged on the bottom plate and used for blowing granular fertilizer for discharging, the fertilizing pipeline is communicated with the discharging pipe, the fertilizing pipeline penetrates through the fertilizing barrel and extends to the outside, the extending pipeline is arranged on the fertilizing pipeline in a sliding and sleeving mode, and the adjusting assembly is arranged on the fertilizing barrel.

The invention belongs to the technical field of polymer-based heat-conducting interface materials, and particularly relates to a nano-silver modified carbon fiber coated organic silicon heat-conducting composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: modifying oxidized pitch-based carbon fibers by using a silane coupling agent to obtain silane coupling agent modified carbon fibers, fixing nano-silver on the silane coupling agent modified carbon fibers to obtain nano-silver modified carbon fibers, and filling the nano-silver modified carbon fibers into organic silicon to obtain the nano-silver modified carbon fiber-organic silicon heat-conducting composite material. Under the low filling amount of the heat-conducting filler, the asphalt-based carbon fiber is modified by adopting the silane coupling agent and the nano-silver, so that the dispersity of the asphalt-based carbon fiber in organic silicon is improved, the heat-conducting property of the asphalt-based carbon fiber can be improved by fixing the nano-silver, the interface thermal resistance between the asphalt-based carbon fiber filler is reduced, and the thermal conductivity of the asphalt-based carbon fiber is improved. The heat-conducting property of the nano-silver modified carbon fiber coated organic silicon heat-conducting composite material is greatly improved.

The present invention relates to the field of textile chemicals and high-performance fiber technology, and specifically to a polyacrylonitrile spinning solution, a preparation method thereof, and an application thereof. The preparation method of the polyacrylonitrile spinning solution comprises the following steps: (1) mixing a polyacrylonitrile resin with a first sodium thiocyanate aqueous solution at a temperature of 10 to 25°C, and dispersing and beating at a temperature of 15 to 25°C to form a slurry mixture; (2) mixing the slurry mixture with a second sodium thiocyanate aqueous solution at a temperature of 100 to 140°C, and then high-speed shearing at a temperature of 80 to 90°C to obtain a polyacrylonitrile spinning solution; the polyacrylonitrile resin has a number average particle size of 2 to 9 um, a particle size distribution index of 1.5 to 2.8, and a sedimentation value of 3.0 to 4.2. According to the preparation method of the present invention, the slurry viscosity in the preparation process of the polyacrylonitrile spinning solution is low, the fluidity is good, and it can be used for continuous production, and the prepared polyacrylonitrile spinning solution has a high solid content, a low viscosity, and good extrusion uniformity and stability.

The invention provides an aluminum ring-pull can cover material passivating agent for water-based paint. The aluminum ring-pull can cover material passivating agent is prepared from the following raw materials in percentage by weight: 0.5-5% of a chromium source, 1-5% of a reducing agent, 1.5-6% of a film-forming agent, 1-5% of a silane coupling agent and the balance of deionized water. The invention is applied to water-based paint, the dyne value of a passive film is increased, a surface on which the water-based paint can be quickly wetted and spread is provided, the stability of a passivated film-forming structure is improved, and the abnormal coating performance of the water-based paint caused by the unstable structure of the passive film in the long-term use process is avoided. And the compactness and wear resistance of a passivation film are improved, and the problem that after passivation treatment, a passivation layer is damaged and abraded after the aluminum plate strip passes through a conveying roller and a steering roller is solved. Meanwhile, the passivation film-forming temperature is reduced, and it is guaranteed that a compact passivation film is rapidly formed under the condition that an existing technology is changed and energy consumption is not increased through passivation.

The invention provides an oxygen-containing compound adsorbent and a preparation method thereof. The oxygen-containing compound adsorbent comprises an active component; the active component comprises a first metal-modified modified molecular sieve and a binder attached to the surface of the modified molecular sieve; the binder is modified activated aluminum oxide modified by second metal; metal elements related to the first metal modification and the second metal modification are independently selected from any one or more of transition metal elements, alkaline earth metal elements and rare earth metal elements. The oxygen-containing compound adsorbent has high selectivity and high adsorption capacity on oxygen-containing compounds in C4-C12 Fischer-Tropsch synthetic oil, the content of the oxygen-containing compounds in the Fischer-Tropsch synthetic oil raw material can be reduced to 1 ppm or below, and meanwhile, a raw material is provided for a downstream polyolefin product production process.

The invention provides a photoresist composition and a preparation process thereof. The photoresist composition is prepared from the following raw materials in parts by weight: 80.0 to 100.0 parts of solvent, 20.0 to 40.0 parts of resin, 3.0 to 5.0 parts of photoinitiator, 1.0 to 3.0 parts of light stabilizer, 1.5 to 2.5 parts of tackifier, 1.0 to 1.5 parts of monomer, 1.0 to 2.0 parts of acid diffusion inhibitor and 0.5 to 2.0 parts of flatting agent. Wherein the acid diffusion inhibitor is prepared from perfluorocyclohexane, benzo-15-crown ether-5 and L-ethyl lactate, and the mass volume ratio g / mL of the perfluorocyclohexane to the benzo-15-crown ether-5 to the L-ethyl lactate is (2-3): (1-2): (1-2). According to the acid diffusion inhibitor disclosed by the invention, through the combined action of different mechanisms of the perfluorocyclohexane, the benzo-15-crown ether-5 and the L-ethyl lactate, the diffusion speed of acid is slowed down, so that the boundary between an exposure region and a non-exposure region is clearer, and the resolution ratio of photoresist is improved. By modifying the methacrylic resin, the surface energy and polarity of the methacrylic resin are changed, and the solubility of the resin after exposure is remarkably changed, so that the photoresist is easier to remove in a developing solution, and the definition and resolution of a pattern are improved.

The invention belongs to the technical field of electrode materials, and particularly relates to an electrode foil, a preparation method thereof and an aluminum electrolytic capacitor, and the preparation method of the electrode foil comprises the steps: carrying out the formation of a corrosion foil, and forming an aluminum oxide film on the surface of the corrosion foil; forming a nano-porous silicon dioxide film on the surface of the aluminum oxide film to obtain an electrode foil with an aluminum oxide-silicon dioxide double-layer composite oxide film; and sequentially carrying out phosphating treatment and annealing treatment on the electrode foil. According to the preparation method, after the corrosion foil is subjected to formation treatment to form the Al2O3 film, the nano-porous SiO2 film is formed on the surface of the Al2O3 film, the SiO2 film is subjected to phosphating treatment to contain phosphorus elements, the phosphorus elements are uniformly diffused into the SiO2 film, a double-layer composite oxidation film with the Al2O3 inner layer and the SiO2 outer layer is obtained, and the specific volume, the hydration resistance and the corrosion resistance of the low-voltage electrode foil are improved.

The invention relates to the technical field of solar cell materials, in particular to a perovskite film, a preparation method thereof and a perovskite solar cell. The preparation method of the perovskite film comprises the steps that a divalent inorganic salt aqueous solution is prepared, divalent inorganic salt in the divalent inorganic salt aqueous solution is inorganic salt corresponding to perovskite divalent cations, and the divalent inorganic salt aqueous solution contains a cationic surface active agent; performing film-forming treatment on the divalent inorganic salt aqueous solution to obtain a divalent inorganic salt film; and converting the divalent inorganic salt in the divalent inorganic salt film into organic-inorganic hybrid perovskite to obtain the perovskite film. Based on the action of the cationic surface active agent, the surface tension of the divalent inorganic salt aqueous solution is reduced, spreading is easy in the film forming process, nucleation-growth of the divalent inorganic salt is optimized, the pinhole generation risk of the divalent inorganic salt film is reduced, and finally the smooth and compact perovskite film can be obtained.

The invention relates to the technical field of soldering flux processing, in particular to a high-humidity type halogen-free soldering flux and a preparation method. The high-humidity type halogen-free scaling powder is prepared from, by weight, 20%-30% of a film-forming agent, 4%-8% of an active agent, 5%-10% of palm wax, 0.5%-1% of a corrosion inhibitor, 2%-5% of a thixotropic agent, 0.2%-0.6% of dimethylamine hydrochloride, 1%-2% of chlorinated rare earth salt, 5%-10% of a modifier and the balance solvent, and the modifier is obtained by mixing castor oil, octadecanamide and glycerin. The wettability of the halogen-free soldering flux prepared through the compound formula in the welding process is greatly improved, a molten pool is more stable, and welding defects are reduced. Meanwhile, due to the introduction of the modifier, especially the mixture of castor oil, octadecanamide and glycerol, the thermal stability of the scaling powder is improved, the risk that a traditional active agent is decomposed at high temperature is reduced, release of harmful gas and formation of residues are reduced, and the welding quality is guaranteed.

The invention relates to the technical field of high polymer materials, and discloses a fluorine-containing fire extinguishing microcapsule and a preparation method thereof. A micro-suspension polymerization system is adopted, a reversible addition fragmentation chain transfer free radical polymerization technology is applied, and the fluorine-containing fire extinguishing microcapsule with a SiO2 / polymer composite shell layer wrapping a low-boiling-point fluoride core material is prepared. Reversible addition fragmentation chain transfer free radical polymerization adopted by the invention changes the dynamic characteristics of traditional free radical polymerization, a large number of low-molecular-weight oligomer chains are formed at the beginning of polymerization, the oligomer chains are easily diffused to an oil / water interface under thermodynamic driving, formation of a regular core-shell structure is promoted, and the uniformity of a shell chemical cross-linked network can be improved; therefore, the coating effect on the low-boiling-point fluoride core material is improved, toxic gases such as formaldehyde in the product can be avoided in the preparation process, and the preparation method has a wide application prospect.

The invention provides a multi-field auxiliary metal fuse additive melt directional transfer device and method. The device comprises a laser energy source system, a metal wire feeding system, a constant magnetic field system, an electric field system, a coaxial protective gas system, an ultrasonic generator, a multi-axis motion platform and a forming substrate. The forming base plate is fixedly installed above the multi-axis motion platform, and multi-degree-of-freedom motion of the forming base plate in space is achieved through the multi-axis motion platform. The laser energy source system is fixed above the forming substrate, so that laser emitted by the laser energy source system is irradiated to the upper surface of the forming substrate; the metal wire feeding system is fixed to the side face of the laser energy source system and conveys metal wires to the size range of laser spots. The constant magnetic field system, the electric field system and the ultrasonic generator are respectively fixed on the metal wire feeding system; the multi-axis motion platform comprises four degrees of freedom of X-axis motion, Y-axis motion, Z-axis motion and platform rotation. A specific field is applied to the end of the metal wire by distributing the installation position of the auxiliary field.

The invention discloses a preparation method of superfine high-moisture-absorption ES hollow fibers, and relates to the technical field of textiles. According to the invention, polyethylene terephthalate is used as a core layer, steric hindrance of a molecular chain of polyethylene terephthalate is increased through 5-methyl isophthalic acid, diffusion and adsorption of water molecules are facilitated, hygroscopicity is realized, then sulfonated sodium dioctyl succinate is compounded with anionic and cationic surfactants to form a hydrophilic finishing agent, moisture retention of the fiber is realized, and then the fiber is subjected to hydrophilic finishing to form a hydrophilic finishing agent. An inorganic filler is added and is coated through the physical adsorption and chemical reaction effects of stearic acid ester, the number of gaps is increased and channels of water molecules are increased by virtue of the incompatibility of the filler and resin, then during spinning, the hydrophilic finishing agent has an overall anionic property, so that a matrix is assisted to reduce friction, and in a high-speed stretching process, the hydrophilic finishing agent has a hydrophilic property. The chemical fibers are prevented from generating tows which are dispersed and are not easy to wind, and the fibers form a certain physical-mechanical property and a stable structure through secondary stretching.

The utility model discloses a lithium battery pack with a fire extinguishing function in the technical field of lithium battery packs, which comprises an explosion-proof shell, a cover plate and a battery component, a connecting plate is fixedly connected to the upper end of the explosion-proof shell, the middle of the connecting plate is hollow and is communicated with the explosion-proof shell in a penetrating manner, and a motor component is arranged in the explosion-proof shell and is fixedly connected with the cover plate. And the cover plate is connected to the upper end of the explosion-proof shell. The lithium battery protection device has the advantages that the protection plates are arranged between the lithium batteries, the dry powder is arranged in the protection plates, the protection plates are hot-melted after a fire breaks out to enable the dry powder to be emitted to extinguish the fire, meanwhile, inert gas is arranged in the gas storage shell at the upper end of the cover plate, and eruption extinguishment is conducted through sensing of the smoke sensor. And the lower end of the anti-explosion shell can promote oxygen in the mounting groove to be erupted and discharged out of the mounting groove, inert gas is promoted to be dispersed in the mounting groove for fire extinguishing, and practicability is high.

The invention discloses efficient closed-pore high-stability slurry and a preparation method thereof, a lithium ion battery and electric equipment, and relates to the technical field of lithium batteries, the efficient closed-pore high-stability slurry comprises water, core-shell microspheres, a heat stabilizer, a wetting auxiliary agent and a dispersing auxiliary agent, the core-shell microspheres comprise first core-shell particles and second core-shell particles, the core of the first core-shell particle is a mixture of a heat conducting agent and a flame retardant, or a composition of any one or more of the heat conducting agents, and the shell of the first core-shell particle is a mixture of a thermosensitive accelerator and a thermosensitive main agent, or a composition of any one or more of the thermosensitive accelerators; the core of the second core-shell particle is a mixture of a heat conducting agent and a flame retardant, or a composition of any one or more of the flame retardants, and the shell of the second core-shell particle is a mixture of a thermosensitive accelerator and a thermosensitive main agent, or a composition of any one or more of the thermosensitive main agents. The material has the advantages of early quick and synchronous response to temperature change, excellent thermal stability and excellent flame retardancy.

The invention discloses a long-service-life gear oil abrasion particle detection device and a detection method thereof, and relates to the field of gear oil detection, in particular to the long-service-life gear oil abrasion particle detection device and the detection method thereof. The abrasion particle plane trapping device and the abrasion particle three-dimensional trapping device are sequentially arranged on one side of the detection pipe from top to bottom, and the execution ends of the abrasion particle plane trapping device and the abrasion particle three-dimensional trapping device extend into the detection pipe; the three-dimensional wear particle trapping device comprises a moving plate vertically arranged on the outer wall of the detection pipe, three-dimensional filter plates sequentially arranged on the outer wall of the moving plate from top to bottom, and negative-pressure suction components arranged at the bottoms of the three-dimensional filter plates, wherein one ends of the three-dimensional filter plates penetrate through the detection pipe and extend into the detection pipe. According to the detection device and the detection method, the abrasion particles are obtained in a plane filtering and three-dimensional filtering mode, the gear oil pollution condition can be rapidly known, and meanwhile the distribution condition of the abrasion particles in the gear oil can be known.

The utility model discloses a micro-video support frame for live video broadcasting, which is characterized in that two groups of clamping plates are arranged in the vertical direction, a connecting plate is connected between the two groups of clamping plates, the top of the clamping plate at the top end of the connecting plate is connected with an air guide pipe, one end of the air guide pipe is connected with a fan box, and the other end of the air guide pipe is connected with a fan; the fan box and the air guide pipe are arranged at the top of the clamping plate, an air inlet notch is formed in the position, corresponding to an air outlet of the air guide pipe, of the top of the clamping plate, and heat dissipation through grooves are formed in the two sides of the interior of the connecting plate in a penetrating mode. And the air inlet notch is long and narrow, so that cooling air flow can be quickly dispersed to the surface of the shooting equipment such as a mobile phone by using the air inlet notch, active heat dissipation treatment on the shooting equipment is realized, heat can be quickly taken away and discharged by matching with the heat dissipation through groove, stable and continuous operation of the shooting equipment is ensured, and the actual service life of the shooting equipment is prolonged.

The invention provides a semiconductor structure and a forming method thereof, and the method comprises the steps: providing a substrate which comprises a substrate and a channel layer located on the substrate; forming a control grid electrode and a polar grid electrode on the channel layer, wherein the control grid electrode is located at one side of the polar grid electrode; forming a source-drain doped region in the channel layer exposed out of the other side of the polar grid electrode by adopting an ion implantation mode; forming a metal material layer on the channel layer exposed out of the other side of the polar grid electrode, and executing first annealing treatment to form a metal silicide layer; and after the source-drain doped region and the metal silicide layer are formed, performing second annealing treatment, and performing phase change to form a target metal silicide layer. By adopting the technical scheme, the performance of the semiconductor structure can be improved.

The present invention discloses a highly breathable super absorbent diaper pad and a preparation method thereof, which belongs to the technical field of diaper pads, and comprises a protective layer, an absorption layer and an anti-reverse osmosis layer from top to bottom, wherein the protective layer is composed of antibacterial modified soybean protein viscose fiber, polyester fiber and ES fiber, the absorption layer is composed of super absorbent fiber and antibacterial modified soybean protein viscose fiber, and the anti-reverse osmosis layer is composed of super absorbent fiber and antibacterial modified soybean protein viscose fiber. The present invention adopts a three-layer non-woven fabric structure with gradual changes in pore size, hydrophilicity and disorder, which can accelerate urine absorption and prevent reverse osmosis; the present invention treats soybean protein to improve hydrophilicity, antibacterial property and air permeability, and the amphiphilicity can make urine diffuse and be absorbed faster and adjust water absorption balance; the present invention utilizes mannitol, hexafluorobutyl methacrylate and other ingredients to make the fiber have excellent water absorption, reduce surface energy, and form a network structure with block copolymer and sodium polyacrylate to improve water absorption and air permeability.

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 embodiment of the invention relates to the field of semiconductors, and provides a manufacturing method of a semiconductor structure, and the method comprises the steps: providing a substrate which comprises a plurality of grooves distributed at intervals in a first direction; performing first deposition treatment, and introducing a first silicon source gas into the groove to form a first semiconductor layer on the inner wall of the groove until the width of the remaining groove in the first direction is a preset width; and second deposition treatment is carried out, second silicon source gas is circularly introduced into the groove to form a second semiconductor layer, the second semiconductor layer covers the surface of the first semiconductor layer, the groove is filled with the second semiconductor layer, and the activity of the second silicon source gas is larger than that of the first silicon source gas. The reliability of the semiconductor structure can be improved.

The invention discloses a green liquid salt and a production process thereof, and relates to the technical field of liquid salts.The production process comprises the steps that a metal organic framework is taken and added into a Tris-HCl buffer solution, uniform mixing is conducted, dopamine hydrochloride is added, stirring, centrifuging, washing and drying are conducted, and the metal organic framework of a core-shell structure is obtained; the preparation method comprises the following steps: adding sulfonated polysulfone, a core-shell structure metal organic framework and polyvinylpyrrolidone into N-methyl pyrrolidone, stirring until the materials are completely dissolved, and carrying out ultrasonic treatment to obtain a membrane casting solution; taking the membrane casting solution, pouring on a glass plate, and performing blade coating, water bath, phase inversion and soaking to obtain a nanofiltration membrane; taking brine, adding modified charcoal, adsorbing, and performing ultrafiltration through an ultrafiltration membrane to obtain ultrafiltration filtrate; and carrying out nanofiltration on the ultrafiltration filtrate through a nanofiltration membrane to obtain liquid salt. Sulfonic acid groups introduced into the nanofiltration membrane are negatively charged, and the interception rate of the nanofiltration membrane on sulfate ions, calcium ions and magnesium ions is improved through electrostatic interaction and size screening.

The invention discloses a carbon intercalation efficient snow-melting agent and a preparation method thereof, and belongs to the technical field of functional materials and synthesis thereof. The method comprises the following steps: (1) carrying out oil bath treatment on an organic matter and molybdenum trioxide in a solution environment to obtain an intercalated molybdenum trioxide nanosheet; (2) in an inert atmosphere, performing heat treatment on the intercalated molybdenum trioxide nanosheet to complete carbonization, so as to obtain a carbon intercalated molybdenum trioxide nanosheet; (3) in an inert atmosphere, carrying out heat treatment on the carbon-intercalated molybdenum trioxide nanosheet and excessive sulfur to complete a reaction, so as to obtain a carbon-intercalated molybdenum disulfide nanosheet; and (4) adding the carbon-intercalated molybdenum disulfide nanosheet into a chlorine salt solution, and drying to remove the solvent, so that the chlorine salt is loaded, thereby obtaining the carbon-intercalated efficient snow-melting agent. The method has the advantage of convenient process, and the prepared carbon intercalation high-efficiency snow-melting agent utilizes the photo-thermal conversion characteristic of molybdenum disulfide of the carbon intercalation to synergistically enhance the ice-melting capability and slow down the corrosion of the chlorine-type snow-melting agent, and has good popularization and application prospects.

The utility model discloses a disposable multifunctional maxillofacial coronal surgical incision isolation hole towel, relates to the field of medical instruments, and aims to at least solve one of the technical problems that an existing hole towel cannot collect intraoperative liquid, the towel laying process is tedious, a tracheal catheter is inconvenient to fix, surgical instruments are inconvenient to fix and the like. According to the hole towel, the hole towel body is reasonably partitioned, so that medical staff can conveniently lay, replace and use the towel; through the arrangement of the tracheal catheter fixing structure, the tracheal catheter can be conveniently fixed so as to reduce the risk of unplanned extubation of the tracheal catheter; through the arrangement of the surgical instrument fixing structure, common instruments in the oral and maxillofacial surgical operation can be conveniently fixed; the liquid collecting bag is arranged on the front face of the head sagging area, bleeding and flushing liquid in an operation can be guided from an operation incision and collected into the liquid collecting bag, the liquid is prevented from soaking the hole towel body, and the isolation and protection effects of the hole towel are guaranteed.