36results about How to "Volatile" patented technology

The invention relates to a fungus strain with a broad-spectrum antibacterial effect, preparation of antibacterial products of the fungus strain and application of the fungus strain in control of postharvest diseases of fruits and vegetables. According to the present invention, the classification name of the fungus is Pichia kluyveri, the Latin literature name is Pichia kluyveri, and the VOCs produced by the strain can inhibit a variety of pathogenic bacteria. The antibacterial product contains at least one compound of phenethyl acetate, ethyl acetate or phenethyl alcohol.

The invention relates to the technical field of aquaculture methods, in particular to a breeding method for preventing and treating ichthyophthiriasis of leiocassis longirostris fries. According to the technical scheme, the first system and the second system are adopted for sequential circulation treatment, and finally the third system is adopted for treatment, so that prevention and treatment of ichthyophthiriasis are achieved. The three systems are all subjected to heating treatment, and the first system contains sodium chloride and formaldehyde, so that rapid falling of insect bodies is promoted, and development of larvae is inhibited; the second system contains povidone iodine, so that body surface infection can be prevented; the third system consolidates the treatment effect; in the treatment process, unhatched cysts and dead polypides are discharged by changing water. A physical heating measure is adopted, so that osmotic stress of salinity on the freshwater fish is reduced. The adopted medicines are all easy to metabolize, are free of heavy metal ions, and have ideal ecological safety and food safety. According to the technical scheme, the technical problem that in the prior art, a safe and effective breeding method for preventing and treating the Leiocassis longirostris ichthyophthiriasis is lacked can be solved, and the method has ideal application and popularization prospects.

The invention discloses a quartz fiber with an yttrium oxide coating and a preparation method of the quartz fiber, and belongs to the field of preparation of wave-transparent ceramics. Aiming at the problem that the performance of the existing quartz fiber is reduced at a high temperature, the invention provides the preparation method of the quartz fiber with the yttrium oxide coating, which comprises the following steps: impregnating the quartz fiber by using yttrium oxide sol, and drying and sintering the impregnated quartz fiber to obtain the quartz fiber coated with the yttrium oxide coating on the surface; the preparation process of the yttrium oxide sol comprises the following steps: sequentially adding a coordination agent and a stabilizer into a yttrium nitrate solution, stirring and dissolving to form a mixed solution, adding a pH regulator to adjust the pH value of the mixed solution to 7-8, heating to a target temperature, and cooling to obtain the yttrium oxide sol. The yttrium oxide coating covers the surface of the quartz fiber, so that the high-temperature sintering resistance of the quartz fiber can be greatly improved; the preparation process of the yttrium oxide sol is simple in technology and low in cost, the prepared yttrium oxide sol is good in stability and can be better attached to the surface of the quartz fiber, and the dipping effect is improved.

The invention discloses a low-temperature-resistant cable sheath material, which is prepared from the following raw materials in parts by weight: 40 to 60 parts of modified chlorinated polyethylene, 30 to 50 parts of silicon rubber, 5 to 6 parts of zinc oxide, 5 to 6 parts of magnesium oxide, 1.5 to 3 parts of calcium stearate, 1 to 3 parts of accelerant NA-2, 2 to 4 parts of gamma-aminopropyltriethoxysilane, 15 to 17 parts of liquid chlorinated paraffin with the chlorine content of 54 percent and 45 to 55 parts of calcined clay. The flame-retardant coating is prepared from the following components in parts by weight: 22 to 27 parts of high-wear-resistance carbon black, 11 to 13 parts of active kaolin, 3 to 6 parts of dicumyl peroxide, 0.5 to 2 parts of N, N-m-phenylene maleimide, 0.5 to 1.5 parts of trimethylolpropane trimethacrylate and 6 to 8 parts of organic phosphorus flame retardant. A fluorine-containing monomer and an acrylate copolymer are introduced into a modified chlorinated polyethylene structure, so that the low temperature resistance, toughness and waterproofness of the material are enhanced. And the used organophosphorus flame retardant is green and environment-friendly and has good compatibility with the resin, so that the heat resistance of the material is enhanced.

The invention belongs to the technical field of wire manufacturing, and discloses an energy-saving fireproof durable copper alloy wire, which comprises a sheath and a conductor, and the sheath comprises the following components: 95-98 parts of polyethylene raw material; 1-3 parts of a composite antioxidant; 1-3 parts of a flame retardant; the composite oxidizing agent comprises aluminum oxide-magnesium oxide-composite xerogel and a hindered phenol antioxidant. The invention has the following effects: the hindered phenol antioxidant is small in molecular weight and easy to volatilize, so that the aluminum oxide-magnesium oxide-composite xerogel is researched and prepared, and the novel metal gel material has a pore structure and a large number of active groups, can adsorb, constrain and limit the volatilization of the hindered phenol antioxidant, and also has the advantages of low cost and high efficiency. The anti-oxidation effect of the hindered phenol antioxidant is not affected, volatilization of the hindered phenol antioxidant is effectively reduced when the electric wire works, especially works in a high-temperature environment, and the effects of aging resistance, durability, low manufacturing cost and industrial application and popularization value are achieved.

The invention discloses an efficient hydrogen dissolving material and a preparation method thereof, and relates to the technical field of hydrogen dissolving materials. The quality problem of dissolved hydrogen is solved. Specifically, the PES, the binding agent, the solvent, the dispersing agent, the cellulose, the anticoagulant and the organic pore-forming agent are prepared from PES, the binding agent, the solvent, the dispersing agent, the cellulose, the anticoagulant and the organic pore-forming agent. The material is prepared from the following specific components in parts by mass: 7 parts of polyethersulfone resin, 32 parts of polyurethane, 9 parts of acetone, 5 parts of hydroxypropyl methacrylate, 6 parts of protein fibers, 11 parts of polylactic acid-polyethylene glycol copolymer and 16 parts of gamma-butyrolactone. Hydrogen permeates into water on the other side from one side through the micropores, formed hydrogen water has the advantages of being high in hydrogen value, good in normal pressure stability, high in hydrogenation efficiency and the like, a membrane or a hollow fiber membrane with the thickness of 40-100 micrometers is made of the material, pores of 1-5 micrometers are formed, the difference of passing air pressure reaches 0.5-4 bar, and the quality of hydrogen water absorbed in the human body is guaranteed.

The present invention discloses a micro-positive pressure lossless oil storage tank, comprising a tank body, wherein the tank body is a cylindrical hollow cylinder structure, wherein the upper end thereof is provided with a tank top, and the lower end thereof is provided with a tank bottom; the load-bearing rod runs through the interior of the tank body, one end of which is connected to the tank top, and the other end of which is connected to the tank bottom; the gas phase port is provided at the tank top; and the liquid phase port is provided at the bottom of the tank body. Compared with the prior art, the present invention has the following beneficial effects: while the tank body is in a micro-positive pressure state, the tank body itself will not be deformed, and the oil is not easy to evaporate and lose, the hoisting and transportation are convenient, and the floor space occupied is small, and at the same time, the phenomenon of oil loss will hardly occur during the oil transportation process.

The invention discloses a flexible three-dimensional hard carbon material and a preparation method and application thereof.The method comprises the steps that polyamide acid sol is synthesized in situ, then a nickel net is evenly coated with the polyamide acid sol, and faint yellow polyimide, namely a polyimide-nickel net composite material, is formed through thermal imidization after drying; the composite material is dried after being subjected to a nickel net removing procedure, finally, the flexible three-dimensional hard carbon material is obtained through carbonization, the method is easy to operate and efficient in reaction, the three-dimensional net structure is obtained, and the material has good capacity performance, rate performance and cycling stability.

The utility model discloses a multi-wedge belt wheel for conveying a roller, which relates to the field of logistics transportation and comprises a multi-wedge belt wheel main body which is integrally formed and arranged, the multi-wedge belt wheel main body comprises a transmission end and a connecting end, a plurality of trapezoidal holes are formed in one side of the connecting end, and every two adjacent trapezoidal holes are spaced to form a supporting partition plate. The trapezoid holes are matched with the supporting partition plates to support the rollers. The trapezoid holes effectively reduce the mass of the connecting ends, meanwhile, the trapezoid holes are matched with the supporting partition plates to enable the connecting ends to be of a hollow structure, the hollow structure can effectively buffer impact force of heavy objects on the roller, the trapezoid holes are of a quadrilateral structure, and compared with a triangular structure, the quadrilateral structure has the performance of variability, and the service life of the quadrilateral structure is prolonged. When the roller bears the pressure of a heavy object, the roller synchronously applies the pressure to the connecting end, and at the moment, the trapezoidal hole elastically deforms to achieve buffering, so that the impact force borne by the multi-wedge belt wheel is effectively reduced, the multi-wedge belt wheel is prevented from being damaged, and then the service life of the multi-wedge belt wheel is prolonged.

The utility model relates to the technical field of cleaning, in particular to a water treatment system and device.The water treatment system comprises a water flow channel, a weakening module, an ozone generation module and a micro-nano bubble generation module which are sequentially arranged in the water flow direction of the water flow channel, the alkalescence module can make water become alkalescent, and the micro-nano bubble generation module can generate micro-nano bubbles into the water flow channel, so that ozone generated by the ozone generation module can be stored in the micro-nano bubbles. According to the utility model, water can be weakly alkalized, and the solubility of ozone in water can be increased through the cooperation of the micro-nano bubble generation module and the ozone generation module, so that the sterilization and decontamination capabilities are improved.

The invention provides a microsystem integrated packaging device and a preparation method thereof, and relates to the technical field of microsystem integrated packaging. A microsystem integrated packaging device comprises a substrate, the surface of which is provided with a plurality of electronic devices; the radiator comprises a main body module and a plurality of branch modules; the main body module and the plurality of branch modules are integrally formed, the plurality of branch modules are located on one side of the main body module, and the plurality of branch modules are correspondingly attached to the surfaces of the plurality of electronic devices respectively; the plastic packaging layer is used for plastic packaging of the substrate and the radiator; and the metal layer is deposited outside the radiator and the plastic packaging layer. According to the embodiment of the invention, the heat dissipation area can be increased through the radiator, and heat generated by the electronic device is easy to volatilize.

The utility model discloses a circulation system applied to a polyolefin elastomer, and relates to the technical field of high polymer material production and processing, the circulation system comprises a devolatilization device and a separation device, the devolatilization device comprises a devolatilization chamber and a plurality of screws arranged in the devolatilization chamber, the plurality of screws are axially arranged side by side, the thread directions of the adjacent screws are opposite, and the threads are staggered; a plurality of vacuum ports are formed in the devolatilization chamber, and each vacuum port is connected with a vacuum pump, so that a vacuum section with a corresponding vacuum degree is formed in the devolatilization chamber, and corresponding volatile components are pumped out; the separation device comprises a rectifying tower, a plurality of temperature zones and a plurality of gas phase outlets are formed in the rectifying tower, and a corresponding separation temperature is set for each temperature zone; the reaction kettle is used for introducing a separated substance obtained by separation, and leading out a reaction product to a material inlet. According to the circulating system, the multistage vacuum extraction design is configured in the devolatilization device, and a polymer enters the devolatilization device and is subjected to devolatilization treatment under different vacuum degrees, so that quick removal of volatile components is ensured, and the devolatilization efficiency is improved.

The utility model discloses an essential oil sterilizing, cooling and recycling device, which relates to the technical field of essential oil production devices and comprises a shell, a feed port is arranged at the left position of the top of the shell, a sterilizing cylinder is fixedly connected to the upper surface of the inside of the shell, and the feed port is communicated with the inside of the sterilizing cylinder. The surface of the sterilization cylinder is sleeved with a heating resistance wire, the heating resistance wire is electrically connected with an external power source, a heat insulation plate is fixedly connected to the position, located below the sterilization cylinder, of the inner side wall of the shell, and a first discharging opening is formed in the bottom of the sterilization cylinder. According to the scheme, essential oil in the sterilization cylinder is firstly heated and sterilized through a heating resistance wire, a scraping ring is driven by a motor to move up and down, residual essential oil on the inner side wall of the sterilization cylinder is scraped off, the essential oil is rapidly discharged out of the sterilization cylinder, the treatment efficiency is improved, the essential oil is rapidly cooled through a cooling pipe, and the treatment effect is good. And subsequent recovery treatment of the essential oil is facilitated.

The invention belongs to the field of energy materials, and discloses a preparation method of a lithium metal negative electrode of a lithium metal battery and a product and application of the lithium metal negative electrode of the lithium metal battery, and the preparation method comprises the following steps: using a conductive substrate as a working electrode, using an electrode composed of a lithium-containing substance as a counter electrode, and performing electro-deposition on the working electrode in a pure solvent or a low-salt solution to obtain the lithium metal negative electrode of the lithium metal battery. The correspondingly obtained working electrode is the lithium metal negative electrode. By using a pure solvent or a low-salt solution, high-efficiency electrochemical deposition of lithium can be carried out without participation of a traditional electrolyte of high-content lithium salt, correspondingly, the metallic lithium elementary substance (or lithium alloy) deposited on the working electrode is high in density, and the performance of the lithium ion battery is improved. The obtained electrode deposited with the lithium metal can be particularly used as a negative electrode to be applied to a lithium ion battery, and has the advantages of being simple in method, low in cost, controllable, expandable, high in industrial adaptability and convenient for large-scale operation.

The invention discloses a method for directionally adjusting the crystal face orientation of a perovskite film, and the method comprises the following steps: weighing perovskite precursor powder which comprises a perovskite material with the structural formula of ABX3; adding a mixed solvent of 2-ME, NMP, DMPU and DMSO into the perovskite precursor powder to prepare a perovskite precursor mixed solution with the concentration of 1.0 M; preparing a uniform perovskite solution wet film on the TCO substrate by using the perovskite precursor mixed solution through blade coating equipment or slit equipment to obtain a wet film substrate; and placing the wet film substrate in vacuum drying equipment, rapidly volatilizing the solvent through rapid vacuum pumping, and simultaneously introducing process steam to crystallize the perovskite to form the film. Therefore, the crystal face orientation of the perovskite thin film can be directionally adjusted, and the crystal face orientation is specifically optimized towards a higher carrier mobility direction and towards a lower defect state density direction. The photoelectric conversion efficiency of perovskite industrialization can be improved, and the method has a very considerable application prospect.

The invention discloses a preparation method of whitening, freckle-removing and anti-wrinkle essence oil, which is characterized in that a water milling accelerant is supplemented when plant raw materials are squeezed by water milling, so that the stability of an extraction process is enhanced while the component analysis quantity of the essential oil is increased; meanwhile, beta-cyclodextrin is modified, so that the water solubility of beta-cyclodextrin is enhanced, and meanwhile, the amount and variety of essential oil included by beta-cyclodextrin are increased; the antioxidant of the essence oil is enhanced by compounding dipropyl thiodiacetate and vitamin E as a composite antioxidant, and the viscosity of the essence oil is also reduced, so that the essence oil is fresher to use.

The application discloses a DASA molecular switch photochromic film and application thereof. Z ,4 E )-2-hydroxy-5-((2-hydroxybenzyl)(pyridine-2-methyl)amino)pent-2,4-dien-1-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione is dissolved in 1,1,1,3,3,3-hexafluoro-2-propanol, and a photochromic film is formed after the solvent is volatilized. The photochromic film of the application breaks the limitation of DASA molecular concentration dependence, realizes photochromism in a solid film state by means of intramolecular Michael addition and provides bicyclic isomers, and has application prospects in drug delivery, temperature sensors, chemical detectors, surface chemistry and photothermal driving.

The invention discloses an oil smoke reverse suction prevention device for an internal thread copper pipe, which relates to the technical field of non-ferrous metal processing and is used for being mounted on an annealing purging rod, an air inlet is formed in the annealing purging rod, the annealing purging rod comprises an air guide head, a conical air separation cover and a spring, the air guide head is arranged on the annealing purging rod, and the conical air separation cover is arranged on the air guide head. A gas guide head inlet and a gas guide head inner hole which are communicated with each other are formed in the gas guide head, the gas guide head inner hole is communicated with the gas inlet, the conical gas insulation cover is arranged in the annealing purging rod, one side of the conical gas insulation cover is over against the gas inlet, and the other side of the conical gas insulation cover is connected with the inner wall of the annealing purging rod through a spring. By arranging the oil smoke suck-back prevention device for the internal thread copper pipe on the air inlet of the finished annealing purging rod, inert protective gas can be conveniently guided into the annealing purging rod, meanwhile, oil smoke gas in the atmosphere in a furnace in the annealing process can be effectively prevented from being sucked back into the inner wall of the copper pipe after inert gas purging is completed, and the service life of the copper pipe is prolonged. Oil smoke is prevented from entering the copper pipe for secondary cooling condensation, so that the residual oil value of the inner wall of the copper pipe is reduced.

The application provides a printable mesoscopic perovskite solar cell and a preparation method thereof, and the solar cell has a layered structure framework. By adding an alcohol ether to a precursor solution, the permeability of the precursor solution is effectively improved, and the fill factor, short-circuit current and stability of the solar cell are significantly improved, so that the technical problem that the existing perovskite precursor is not filled sufficiently in the porous membrane framework, resulting in poor photoelectric performance, is solved.

The invention discloses high-elasticity and high-weather-resistance modified asphalt and a preparation method thereof. The preparation method comprises the following steps: performing high-speed shearing swelling on paraffin-based matrix asphalt, hydrogenated nitrile rubber powder and nano silicon dioxide powder to obtain an asphalt mixture; the preparation method comprises the following steps: mixing an ethylene-vinyl acetate copolymer, cycloundecane and ethylene glycol monoethyl ether acetate to obtain an ethylene glycol monoethyl ether acetate solution, and emulsifying an asphalt mixture and the ethylene glycol monoethyl ether acetate solution to obtain the high-elasticity and high-weather-resistance modified asphalt. The asphalt and the ethylene-vinyl acetate copolymer form a new chemical bond through an emulsification reaction, and cycloundecane improves the density and hardness of hydrogenated butadiene-acrylonitrile rubber and fills gaps in the asphalt, so that the crystallization ability between rubber molecules and asphalt molecules is improved, the crystallinity of the asphalt is improved, and the mechanical property of the asphalt is improved. The cohesive force and elasticity of the asphalt can be enhanced, so that the elasticity and weather resistance of the asphalt are improved, and the defects of insufficient elasticity and weather resistance of the asphalt in the prior art are overcome.

This invention relates to an injection molding structure and demolding process for producing two-color liquid silicone ejector pins in the field of injection molding technology. It includes a frame, a heating device, an injection molding device, a molding device, and a main control panel. One end of the lower mold assembly is equipped with an atomizing spray gun. The surface of the atomizing spray gun is connected to an air inlet for compressed gas and a liquid inlet for mold release agent. The lower mold assembly contains a demolding device to assist in cooling and demolding. This invention improves upon traditional ejection methods that easily cause product tearing, deformation, or residue by adding an atomizing spray gun to uniformly spray the agent onto the surface of the cavity and core under gas pressure, forming a micron-level isolation film, achieving a non-destructive demolding process. This structure automatically sprays the mold release agent before mold opening. After mold opening, the demolding device with a cooling effect first cools the ejected part of the product, allowing the stressed part of the product to cool and solidify before being smoothly ejected, reducing the need for traditional steps requiring complete cooling or air cooling.

The application relates to the technical field of plant extracts, and discloses a forsythia suspense leaf extract and application thereof. The preparation method of the forsythia suspense leaf extract is as follows: (1) forsythia suspense leaves are treated by killing green, drying and crushing, and then sprayed with a sodium hydroxide-ethanol solution and sealed and placed, followed by drying and steam explosion to obtain solid A; (2) solid A is extracted by refluxing with an ethanol solution, and then subjected to solid-liquid separation and concentration to obtain concentrated solution A, anhydrous ethanol and an additive are added into the concentrated solution A, stirred, placed, subjected to solid-liquid separation, concentrated into a paste, and then water is added into the paste, mixed, and concentrated to obtain concentrated solution B; (3) concentrated solution B is placed at room temperature, subjected to solid-liquid separation, and the collected solid is dried to obtain the forsythia suspense leaf extract. The preparation method of the forsythia suspense leaf extract in the application can effectively extract forsythoside in the forsythia suspense leaves, and the content of forsythoside in the extract can reach more than 60%.

The present invention relates to a preparation for rapidly promoting the germination and rooting of Tamarix chinensis cuttings and a preparation method thereof. The raw material formula is: 500-1000 mg / L of indolebutyric acid, 250-500 mg / L of cytokinin, and the rest is double distilled water. Under the treatment of the preparation, the survival rate of Tamarix chinensis cuttings can be rapidly improved, the growth of the aboveground part and the root system can be promoted, and the cutting propagation rate of Tamarix chinensis branches can be significantly improved.

This invention provides a copper-zinc-tin-sulfur-selenium thin film, its preparation method, and a semiconductor device thereof. The preparation method includes: fully dissolving at least one metal source of copper, zinc, tin, sulfur, and selenium in a ligand solvent; then adding a main solvent, other metal sources, and a sulfur or selenium source; and thoroughly mixing to obtain a copper-zinc-tin-sulfur-selenium precursor solution based on a mixed solvent system. The ligand solvent is a small-molecule solvent with carbonyl or amine coordinating groups that provide lone pairs of electrons to metal cations. The precursor solution is then coated onto a substrate surface to prepare a precursor thin film. The precursor thin film is further subjected to post-selenization or post-sulfurization treatment to obtain the copper-zinc-tin-sulfur-selenium thin film. By introducing a small-molecule solvent with specific coordination ability to form discrete metal-ligand structural units with the metal precursor, metal clusters or oxygen bridge network structures are effectively suppressed. High homogenization of the precursor solution is achieved at the molecular scale, significantly improving the thickness and compositional uniformity of the copper-zinc-tin-sulfur-selenium precursor thin film.

This utility model discloses an odor sample preparation device, including an odor source storage chamber and bases disposed at the four corners of the lower side of the odor source storage chamber. The odor source storage chamber has a storage space inside, and an anti-volatility sealing cover is provided on the rear exterior of the storage space. A temperature control module is disposed inside the upper rear left side of the odor source storage chamber, a suction pump is disposed inside the left side of the odor source storage chamber, and a controller is disposed on the upper right front side of the odor source storage chamber. This device supports the rapid replacement of different types of adsorption materials (such as activated carbon and molecular sieves) to meet the directional enrichment needs of diverse odor samples (such as explosives, plant fragments, food, etc.), avoiding the limitations of a single material. The temperature control module is electrically connected to the external heating structure and can flexibly adjust the heating mode according to the odor source form (solid or liquid), improving the volatile efficiency of odor molecules while supporting standardized and streamlined operation.

The invention discloses a perspiration breathable eight-hole fiber and a preparation method thereof, and relates to the technical field of chemical fibers. The preparation method comprises the following steps: modifying silicon nitride by using calcium lignosulphonate, respectively loading a natural high polymer material and a compound on the modified silicon nitride, preparing modified polyester fibers from the silicon nitride loaded with the natural high polymer material and a polyester material, and spraying the silicon nitride loaded with the compound on the modified polyester fibers to obtain the modified polyester fibers. The air-permeable and sweat-discharging eight-hole fiber is prepared; the preparation method comprises the following steps: embedding poly (N-isopropylacrylamide) into carrageenan to prepare a compound; certain micropores exist in a three-dimensional network structure formed by the carrageenan, the micropore structure endows the carrageenan gel with certain adsorption, embedding and other properties, the carrageenan gel can be used for bearing poly (N-isopropylacrylamide), and the breathable effect of the fiber is improved.

The invention relates to the technical field of solid-state batteries, in particular to a negative pole piece for a solid-state battery, a preparation method of the negative pole piece, the battery and an electric device. The disclosed negative pole piece for the solid-state battery comprises a current collector and an active coating which is arranged on at least one side and at least part of the surface of the current collector in the thickness direction, the active coating comprises a negative electrode active material, a binder and a densification auxiliary agent, and the number-average molecular weight of the densification auxiliary agent is smaller than that of the binder; when the pressure is less than or equal to 5MPa, the porosity of the negative pole piece is a and is dimensionless; wherein a is less than or equal to 30%. According to the negative pole piece disclosed by the invention, the friction force and the mechanical occlusion behavior at the interface can be regulated and controlled, the rearrangement and densification potential barriers of numerous particles in the charging and discharging process are reduced, the dynamic densification structure of a solid negative pole under low pressure is ensured, and the ion and electron transmission performance is improved.

The application provides a preparation method of a novel nano-enzyme high-efficiency antibacterial agent, and the specific operation steps are as follows: 1, CuAC2 is weighed and dissolved in N,N-dimethylformamide; 2, sodium phenyl dodecyl sulfonate is added, and after stirring for one hour, the mixture is moved into a reaction kettle; 3, thioacetamide is added, and after continuing to stir for 10 minutes, the mixture is sealed; 4, after constant temperature heating in a 180-degree oven for 24 hours, the mixture is taken out, cooled to room temperature, centrifuged, washed and dried, and the powder obtained is the novel nano-enzyme high-efficiency antibacterial agent. The novel nano-enzyme high-efficiency antibacterial agent prepared by the method can generate sufficient ROS (hydroxyl radicals) under the condition of no light, and is used for killing various typical drug-resistant bacteria.

The invention belongs to the technical field of traditional Chinese medicine preparations, and discloses a collateral dredging pill which comprises collateral dredging extract fine powder, an enteric coating layer and a gastric-soluble film coating layer. The invention also discloses a preparation method of the pill, which comprises the following steps of: preparing the vein and collateral dredging extract into small pills or granules, coating the enteric coating, further preparing the pills, and coating the stomach-soluble film coating to obtain the pill. Compared with traditional collateral dredging granules and pills, the collateral dredging enteric-coated pill preparation can effectively improve the drying speed of the pill, is regular in appearance, good in fluidity and small in weight difference, can reduce the bad smell of the preparation under the condition that a flavoring agent is not used, improves the medication compliance of a patient, can be accurately positioned to disintegrate, release and absorb, and has a good application prospect. Meanwhile, the stability of the medicine is improved. As an upgraded and updated new product of traditional collateral dredging granules and pills, the traditional Chinese medicine composition has a wide market development prospect.

The present application relates to rectification technical field, particularly to a kind of rectification tower system balance full-automatic separation control method, rectification tower system includes rectification I tower, control method includes to rectification I tower is carried out material balance control and gas-liquid equilibrium control, gas-liquid equilibrium control is used to control the amount of backflow of material backflow to rectification I tower;The material balance control includes: detecting the actual feed flow of rectification I tower and the actual liquid level value of the first reflux tank corresponding to rectification I tower, in combination with the overhead take-off component set point of rectification I tower and the overhead take-off component density, the overhead take-off material flow of rectification I tower is calculated and controlled in real time.By the method, the stability and efficiency of rectification tower system are improved, and the energy consumption cost and the volatility problem of product are reduced.