34results about How to "Improve surface topography" patented technology

The invention relates to synthesis of a heterogeneous Fenton catalyst and application of the heterogeneous Fenton catalyst to degradation of PFAS, and belongs to the technical field of environmental engineering water treatment. The preparation method comprises the following steps: roasting an MOF material in a non-oxidizing atmosphere to obtain a carbonized MOF material, taking the carbonized MOF material as a template, synthesizing FeS2 by taking FeSO4, Na2S2O3 and elemental sulfur as raw materials through a hydrothermal method, and preparing to obtain the heterogeneous Fenton catalyst. Then, a three-electrode system is constructed, FeS2-MOF (at) C is used as a catalyst for efficiently degrading PFAS, and the heterogeneous Fenton catalyst has the advantages of being stable in crystal structure, high in electron transfer efficiency, excellent in catalytic performance and the like and is suitable for being used for removing various organic pollutants difficult to degrade.

The invention discloses an electrocatalyst material for in-situ production of hydrogen peroxide through oxygen reduction as well as a preparation method and application of the electrocatalyst material, and belongs to the field of organic wastewater treatment. MoS2 / Fe porous conductive particles and a high-molecular polymer are adopted as main components, and ethanedioate and polyacrylamide are combined as a dispersion auxiliary solvent and a pore-forming agent to form a three-dimensional composite conductive catalyst material; through ultralow-temperature freeze drying and microwave radiation technologies, the material structure is optimized, the catalytic reaction active sites are improved, and efficient electrocatalytic oxygen reduction for in-situ production of hydrogen peroxide is realized; the MoS2 / Fe porous conductive particles not only optimize the performance of the catalyst, but also realize high-valued utilization of solid wastes; the electrocatalyst material has excellent conductivity, catalytic activity and organic wastewater degradation capability, is stable in removal effect before and after use, can be repeatedly used for multiple times, reduces the use cost, and provides a wide application prospect for the fields of environmental protection, energy and the like.

The invention relates to the field of hydrogen production by alkaline electrolysis of water, and discloses a cerium-doped ferronickel-based composite catalytic material and a preparation method and application thereof, the cerium-doped ferronickel-based composite catalytic material comprises a foamed nickel substrate and a cerium-doped ferronickel-based electrode layer coating at least part of the foamed nickel substrate; the mass ratio of a cerium element to a nickel element to an iron element in the cerium-doped nickel-iron-based electrode layer is 1: (60-75): (20-40); and the average pore diameter of the cerium-doped nickel-iron-based electrode layer is 1-3 microns. The attenuation rate of an electrode layer of the cerium-doped ferronickel-based composite catalytic material is smaller than or equal to 0.05 mV / h under 1000 h, the precipitation amount of a nickel element is smaller than or equal to 2 micrograms / L under 1000 h, the precipitation amount of an iron element is smaller than or equal to 100 micrograms / L, and the cerium-doped ferronickel-based composite catalytic material has excellent oxygen evolution activity and stability.

The invention discloses a pretreatment method for efficient sludge dewatering and antibiotic resistance gene reduction, and relates to the technical field of pollutant harmless treatment, and the pretreatment method comprises the following steps: adding ferrate and periodate into sludge, and uniformly stirring and mixing to obtain pretreated sludge. The ferrate and periodate pretreatment method for the sludge has the remarkable technical advantages that high-valence strong iron oxide ions can be generated and stabilized without adjusting a treatment system to be acidic, and the efficient and continuous oxidation process is ensured; the method comprises the following steps of: reducing the abundance of actinomycetes and chloromentholum bacteria carrying ARGs by regulating a two-component regulation and control system, quorum sensing and a IV-type secretion system through microorganisms, promoting transfer of antibiotic resistance genes from inside to outside of cells, exposing the antibiotic resistance genes in an external environment of sludge, and promoting removal of the ARGs in the sludge; the surface morphology of the sludge is optimized, regulated and controlled, the high dehydration performance of the sludge is guaranteed through particle dispersion and aggregation, and efficient dehydration and resistance gene reduction in the sludge pretreatment process are achieved.

The invention discloses a liquid phase growth method of n-type silicon carbide crystals, and belongs to the technical field of semiconductors. By changing the formula of a growth raw material for silicon carbide growth, the growth raw material is configured to be SixCryMz, the molar ratio x of Si to the raw material is 40-70%, the molar ratio y of Cr to the raw material is 20-60%, and the molar ratio z of M to the raw material is 1-10%; m is one or more of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Ce, La, Tb, Nd, Ta and Pr. According to the method, other elements M are doped on the basis of a Si-Cr system, the liquid growth method is matched to replace an Al element to improve the crystal morphology, meanwhile, evaporation of solution components can be inhibited, and the growth system can be kept stable for a longer time, so that the n-type silicon carbide crystal with more uniform surface steps can be grown.

The application provides a microcapsule, a composite fabric, a preparation method of the composite fabric and a summer quilt. The preparation method of the composite fabric comprises the following steps: A1, treating the top surface and the bottom surface of a moisture-permeable layer by using oxygen plasma; A2, adding microcapsules and a crosslinking agent into water to obtain a sticky liquid; coating the sticky liquid on the bottom surface and the top surface of the moisture-permeable layer in a dotted form, bonding the moisture-permeable layer and a moisture-removing and air-permeable layer by taking the top surface of the moisture-permeable layer as a bonding surface, bonding the moisture-permeable layer and a skin-friendly cool layer by taking the bottom surface of the moisture-permeable layer as a bonding surface, drying and hot pressing; the microcapsule comprises a core material and a shell covering the outside of the core material, the core material comprises a glue, and the glue is selected from glue A or glue B or a combination of the two, the glue A is a solvent-free moisture curing reaction type polyurethane hot melt adhesive, and the glue B is an acrylate with an epoxy group and / or a urethane group. The application can guarantee the moisture permeability and air permeability of the composite fabric.

The utility model discloses a wafer carrying system, including, workstation, be provided with transfer station, rough grinding station and fine grinding station on the workstation, bearing platform, set up in the workstation for carrying wafer and will wafer transfer between transfer station, rough grinding station and fine grinding station, cleaning unit, be provided with the workstation, with the interval setting of bearing platform, transfer unit, will the wafer after grinding be directly transferred from the bearing platform of transfer station to cleaning unit. Wafer carrying system disclosed in the utility model, after rough grinding and fine grinding to wafer, directly transfer to cleaning unit and clean, simplify the transfer process, in time through the corrosion damage layer, release residual stress, prevent the wafer after thinning from breaking due to damage stress, and optimize wafer surface topography.

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 invention discloses a 3D printing porous medical titanium alloy and a preparation process thereof, and relates to the technical field of medical titanium alloys, and the preparation process comprises the following operation steps: S1, cleaning a 3D printing porous titanium alloy sample piece to obtain a 3D printing porous titanium alloy prefabricated piece; s2, primary micro-arc oxidation is conducted, specifically, the 3D printing porous titanium alloy prefabricated part is placed in electrolyte to be subjected to primary micro-arc oxidation, and a 3D printing porous titanium alloy prefabricated part A is obtained; s3, the 3D printing porous titanium alloy is subjected to acid treatment, and a 3D printing porous titanium alloy prefabricated part B is obtained; s4, secondary micro-arc oxidation is conducted, specifically, the 3D printing porous titanium alloy prefabricated part B is placed in electrolyte to be subjected to secondary micro-arc oxidation, and a 3D printing porous titanium alloy prefabricated part C is obtained; s5, the 3D printing porous titanium alloy prefabricated part C is cleaned; transferring into a fibroin solution, and taking out; and irradiating for 8-15 minutes under an ultraviolet lamp, cleaning and drying to obtain a finished product.

The invention relates to the field of carbon dioxide capture and conversion utilization, and discloses a base material which comprises a base CO2 adsorption component and a CO2 catalytic activity component, wherein the basic group CO2 adsorption component is selected from zirconate; the CO2 catalytic active component is selected from at least one of VIII group metals. The base material has the characteristic of high CO2 adsorption-catalytic cycle stability.

The invention discloses an electro-catalysis electrode which is used for purifying dye wastewater and comprises a metal substrate, and a SnO2-Sb2O4-La composite material layer is attached to the metal substrate; the technical problems that in the prior art, an electrode material adopted by an electrochemical oxidation method is prone to passivation, low in current efficiency, high in processing energy consumption and the like, and then the electrocatalytic activity is weak, and the service life of an electrode is short are solved. Compared with an electro-catalysis electrode not doped with La, the catalytic electrode attached with the SnO2-Sb2O4-La composite material layer disclosed by the invention can increase the effective contact area with dye wastewater, increase the active sites on the surface of the electrode active layer, accelerate the electron transfer rate between the surface of the electrode active layer and the interface of the dye wastewater, and improve the catalytic activity of the dye wastewater. Compared with the prior art, the preparation method has the advantages that the electro-catalytic activity of the electrode is improved, the degradation efficiency of dye wastewater is improved, in addition, the doping of La can effectively prevent the dye wastewater from immersing into the coating to be in contact with the substrate, the falling of the SnO2-Sb2O4-La composite material layer deposited on the surface of the substrate due to passivation of the substrate is prevented, and the service life of the electrode is prolonged.

The invention discloses a magnesium alloy surface treatment method, a magnesium alloy part and application of the magnesium alloy part, and belongs to the technical field of material surface treatment. The surface treatment method of the magnesium alloy comprises the following steps: S1, preparing a micro-arc oxidation film layer on the surface of the magnesium alloy; s2, preparing a conductive coating; the conductive coating comprises a conductive high-molecular polymer or a carbon nano tube; and S3, coating the surface of the micro-arc oxidation film layer obtained in the step S1 with the conductive coating obtained in the step S2 to obtain the composite film layer. The prepared magnesium alloy conductive corrosion-resistant layer can reduce the surface interface contact resistance of the bipolar plate and enhance the corrosion resistance, and compared with the existing metal materials such as aluminum, nickel, titanium and stainless steel, the magnesium alloy conductive corrosion-resistant layer can greatly reduce the weight of the proton exchange membrane fuel cell.

The invention belongs to the field of chromatographic stationary phase materials, and particularly relates to a hollow spherical carbon superstructure derived from a covalent organic framework as well as preparation and application of the hollow spherical carbon superstructure. The invention provides a covalent organic framework-derived hollow spherical carbon superstructure which is formed by taking PCP-CHO as a construction unit to be subjected to an aldehyde amine condensation reaction with TAPD-NH2 under a solution heat condition to obtain small spherical particles (COF-S), and performing self-assembly on an oil-water interface and then performing heat treatment. The invention not only introduces a new method for constructing a carbon superstructure with a controllable form, but also provides a blueprint for obtaining NCA177Lu and separating lanthanide metal ions with similar physical and chemical properties, and highlights the further development potential of material science, especially in the aspects of chromatography and ion separation technologies.

The application discloses a boron nitride van der Waals epitaxial gallium nitride microwave material and a growth method. An ammonia-rich aluminum nitride nucleation layer is introduced on the surface of a boron nitride two-dimensional material, thereby providing high-density nucleation sites for the growth of a subsequent gallium nitride transition layer. The aluminum nitride nucleation layer is subjected to annealing treatment to block grain boundary dislocations. A gallium nitride transition layer with low temperature and high V / III ratio is introduced to promote a lateral epitaxial mode in the initial growth of the gallium nitride, thereby accelerating the turning and blocking of threading dislocations. The growth process of a gallium nitride buffer layer is high-temperature and low-V / III-ratio, thereby promoting the gallium nitride buffer layer to be in a layered epitaxial mode, improving the material surface morphology and crystal quality. A gallium nitride channel layer with high temperature and high V / III ratio is introduced to improve the electron transport characteristics. The technical scheme is based on a material growth method such as MOCVD, and the material is developed through one-time epitaxy technology. Through epitaxy technology improvement and process control, the material with high surface flatness, crystal quality and electron transport characteristics is developed.

A welding method for reducing residual stress and improving surface morphology in thick steel plates is disclosed, relating to the field of welding. The method includes the following steps: applying a large-diameter impact head to the target area of ​​the weld joint on the thick high-strength steel plate using full-coverage ultrasonic impact treatment; and applying a small-diameter impact head to the target area of ​​the weld joint on the thick high-strength steel plate using full-coverage ultrasonic impact treatment. This method utilizes the deep strengthening function of the large-diameter impact head and the surface finishing function of the small-diameter impact head to achieve a synergistic effect, reducing residual stress in the thick high-strength steel plate while simultaneously lowering surface roughness.

The invention provides a preparation method and application of sodium formate, and relates to the technical field of preparation of sodium formate materials. According to the invention, the purified sodium formate is obtained by improving the process, improving the impurity adsorption efficiency and introducing the modified activated carbon and the modified filter membrane, and is applied to the drilling fluid, so that various properties of the drilling fluid are improved.

The invention provides a positive electrode slurry preparation method, a positive electrode slurry, a battery positive electrode and a lithium battery, and the method comprises the following steps: mixing a lithium-rich manganese oxide positive electrode material, a conductive agent, a dispersant, a binder, phosphoric acid and phosphate to form the positive electrode slurry; wherein the pH (Potential of Hydrogen) of the positive electrode slurry is 7.5 to 8.0. The phosphoric acid and the phosphate can reduce the pH value of the positive electrode slurry and maintain the positive electrode slurry in a weakly alkaline state, so that corrosion of the positive electrode slurry to a current collector is inhibited, and the stability and the cycle performance of the battery are improved. The phosphate ester can generate a good synergistic effect with phosphoric acid, the stability of the positive electrode slurry is improved through other mechanisms besides the reduction of the pH value of the positive electrode slurry, and the improvement effect on the electrical performance of the battery is ensured. The phosphate and the phosphoric acid can improve the surface appearance and stripping force of a battery positive electrode prepared from the water-based positive electrode slurry, and effectively improve the coating loading capacity of the water-based positive electrode slurry, so that the mechanical property and the electrical property of the water-based slurry can be superior to those of oil-based slurry.

The application relates to the technical field of dental implants, in particular to a trans-zygomatic implant and a processing technology thereof, and the processing technology comprises variable-distance multi-stage sand blasting and acid etching surface treatment on an anchoring part with threads of the trans-zygomatic implant and electrochemical polishing surface treatment on an extension part without threads. The trans-zygomatic implant is treated by variable-distance multi-stage sand blasting combined with acid etching, so that a uniform micron-level rough base and a multi-stage micropore structure can be formed on the titanium surface, osteoblast adhesion and differentiation are facilitated, the early bone combination speed is accelerated, the combination strength is improved, the early implant loosening risk is reduced, the extension part of the trans-zygomatic implant is treated by electrochemical polishing, a smooth surface can be obtained, plaque adhesion and bacterial colonization are greatly reduced, the implant peri-implantitis risk is reduced, and soft tissue adhesion is promoted; the dual optimization of bone anchoring and tissue adhesion is realized, and the long-term function and health of the trans-zygomatic implant under complex stress are guaranteed.

The invention relates to a poly-L-lactic acid microsphere used for a drug delivery system and having a controllable degradation rate and a preparation method and application thereof.The preparation method comprises the steps that an oil-phase organic solution is added into an emulsifier aqueous solution through an SPG film to be stirred for a reaction, and a poly-L-lactic acid microsphere crude product is obtained; sequentially mixing and reacting the L-polylactic acid microsphere crude product with a sodium hydroxide solution and a polylysine solution, washing and freeze-drying to obtain L-polylactic acid microspheres; a solute in the oil-phase organic solution comprises poly-L-lactic acid and a lactic acid-glycolic acid-polyvinyl alcohol block copolymer. The poly-L-lactic acid microsphere material obtained through a specific preparation process has good stability and biocompatibility, is controllable in degradation rate, and is suitable for preparing a drug delivery system, so that the drug curative effect is improved, and the drug administration frequency is reduced.

The invention discloses a perovskite composite disulfide thin film material as well as a preparation method and application thereof. The perovskite composite disulfide thin film material is an ABX3-MY2 composite thin film, wherein A is one or more + 1 valence or + 2 valence metal or organic cations; b is one or more + 2 or + 4 metal or organic cations; x is one or more of-1-valent or-2-valent nonmetal or organic anions; m is a IV-VI group transition metal, and Y is a chalcogenide element. The perovskite material is doped in the layered transition metal disulfide compound material, so that the crystallinity, the crystal orientation, the microstructure and the surface appearance of the disulfide compound in the film can be effectively improved, the tribological performance of the film in a vacuum environment is further improved, and the film has a certain application prospect in the field of space lubrication.

The invention relates to a preparation method of a perovskite film blue light gain medium, and the method comprises the following steps: S1, raw material blending: dissolving a perovskite precursor and polyacrylonitrile (PAN) in ultra-dry dimethyl sulfoxide to obtain a mixed solution; wherein the mass ratio of the polyacrylonitrile (PAN) to the perovskite precursor is (0.3-0.4): 1; and S2, spin-coating film formation: taking the mixed solution on a glass substrate, and performing spin-coating film formation in an inert gas environment by using a spin-coating method to obtain the perovskite thin film blue light gain medium. The perovskite thin film prepared by the method can realize blue light lasing with low threshold and high optical gain, and has good stability in a high-humidity environment.

The present invention discloses a method for changing the surface morphology and surface flatness of a wafer after single-sided polishing. The method comprises the following steps: (1) producing concentric circle adhesive according to the size of a ceramic disc; (2) preheating the ceramic disc and attaching the concentric circle adhesive to the surface of the ceramic disc; (3) attaching a suction cup pad to the surface of the ceramic disc with the concentric circle adhesive and applying pressure for pressing; (4) using the ceramic disc for single-sided polishing of the wafer to obtain wafers with different surface morphologies and surface flatness after polishing. The present invention changes the force applied to the wafer during single-sided polishing by attaching concentric circle adhesives with different inner diameters to the interlayer of the suction cup pad, thereby improving the surface morphology and surface flatness of the wafer after single-sided polishing. The present invention has strong practicality and can design adhesives with different inner diameters according to the required surface morphology and surface flatness. The process flow is simple, the cost is low, the effect is obvious, and it has good application prospects in the semiconductor field.

This invention discloses an ultrasonic vibration-assisted full-domain transient cladding device and method in the field of surface strengthening technology for components. The cladding chamber is equipped with an inert gas cylinder, an ultrasonic generator, and a vacuum pump on its exterior. Inside the cladding chamber, from top to bottom, are arranged an ultrasonic vibrating head, a perforated graphite felt, coating powder, a workpiece, and a third telescopic motor. The top surface of the workpiece is covered with a layer of coating powder. The perforated graphite felt has through-holes, and an ultrasonic vibrating head extends into one of the holes in the perforated graphite felt. Using air as a carrier, ultrasonic vibration is transmitted to the cladding layer. The workpiece itself does not vibrate, allowing the metal dendrites in the cladding layer to fracture during metal crystallization, promoting the growth of new crystal nuclei and achieving grain refinement. After the cladding layer is formed, the DC power supply is turned off, but the ultrasonic vibrating head continues to operate. The cladding layer of the workpiece impacts the ultrasonic vibrating head, forging the cladding layer and further improving its plasticity and mechanical properties.

The present invention provides a preparation method and application of sodium formate, and relates to the technical field of sodium formate material preparation. The present invention improves the process and improves the impurity adsorption efficiency, introduces modified activated carbon and modified filter membrane, thereby obtaining purified sodium formate, and applies it to drilling fluid to improve various properties of drilling fluid.

The invention discloses a small special numerical control thread grinding machine, belongs to the grinding machine technology, and aims to solve the problems that the existing thread grinding machine grinds a single grinding wheel every time, is low in efficiency and is not suitable for large-batch small screw machining. The first grinding wheel and the second grinding wheel are arranged on the two radial sides of the part, and the first grinding wheel and the second grinding wheel can conduct rough grinding and fine grinding at the same time; the axial leads of the grinding dressing wheel, the part and the power head for driving the part to rotate are parallel and are arranged on a longitudinal carriage between the first grinding wheel and the second grinding wheel, and the longitudinal carriage can drive the part, the dressing wheel and the like to axially move back and forth; the first grinding wheel and the second grinding wheel are arranged on the first transverse carriage and the second transverse carriage respectively and can transversely move left and right on the two radial sides of the part. Through numerical control grinding linkage and finishing linkage of the machine tool, precise grinding and efficient grinding of the small screw are achieved.

The application provides an inconel alloy plate and a surface control method thereof. The surface control method of the inconel alloy plate comprises the following steps: a thinning step, which comprises rolling the incoming material by at least two passes using a first work roll and rolling oil with a first kinematic viscosity, so as to obtain a thinned plate; in the rolling process, the rolling oil between the first work roll and the incoming material forms an oil film with a first thickness; a smoothing step, which comprises rolling the thinned plate by at least one pass using a second work roll and rolling oil with a second kinematic viscosity; in the rolling process, the rolling oil between the second work roll and the thinned plate forms an oil film with a second thickness; the oil film with the second thickness extrudes the surface of the thinned plate to form a plurality of oil pits, so as to obtain the inconel alloy plate. The oil pits obtained by extrusion of the oil film have a small planar area and a shallow depth, and the AOI defect detection rate in the subsequent precise metal mask manufacturing process can be reduced.

The invention belongs to the technical field of electro-catalysis, and particularly relates to a method for synthesizing an acetamido aromatic compound through electro-reduction of nitryl and application of the acetamido aromatic compound. According to the invention, a transition metal electro-catalytic material is firstly prepared, and the material is used as a cathode material for preparing the acetamido aromatic compound through electro-catalytic reduction. The preparation method comprises the following steps: putting a nitro compound, an anhydride compound and an electrolyte into an aqueous solution, reducing the aromatic nitro compound at a cathode, and coupling acetylation reaction to prepare the acetamido aromatic compound. The method comprises the following steps: by taking water as a hydrogen source, reducing a nitro compound through an electro-catalytic hydrogenation reaction, and combining with an acetylation reaction to obtain an acetamido aromatic compound; the method has the advantages of high reaction chemical selectivity, high yield, strong universality, simple operation, mild reaction conditions, low energy consumption and easy product separation. Meanwhile, the electrocatalyst material is simple to prepare, low in cost, recyclable and capable of being prepared on a large scale, and has a wide industrial application prospect in the fields of industrial electrocatalytic organic synthesis and new energy.

The invention belongs to the technical field of metal semiconductor thin films, and discloses a method for preparing a porous ZnO film, wherein zinc acrylate and 2-methylimidazole are added to acrylic acid to obtain a mixed solution after magnetic stirring and ultrasonic oscillation; then benzil and a photoinitiator are added to the mixed solution to uniformly form a zinc-based photocurable resin precursor after magnetic stirring and ultrasonic oscillation again; a spin coater is used to uniformly spin-coat the zinc-based photocurable resin precursor onto a silicon wafer, and long-wave ultraviolet rays are used to irradiate to generate an organic film of zinc acrylate-acrylic acid copolymer; a thermal treatment method is used to convert the organic film of zinc acrylate-acrylic acid copolymer into a porous ZnO film. The method has a simple preparation process, a high utilization rate of raw materials, almost no side reaction products and industrial waste, and the thickness of the prepared porous ZnO film is uniform and controllable, and has a good surface morphology.

The present invention relates to a semiconductor structure and a method for forming the same. A transition layer is formed between a tungsten layer and a pad metal layer, the transition layer is attached to the upper surface of the tungsten layer, and the pad metal layer is attached to the upper surface of the transition layer. The transition layer plays a transition role between the tungsten layer and the pad metal layer, can reduce the influence of the rough tungsten layer surface on the morphology of the pad metal layer, optimize the surface morphology of the pad metal layer located on the tungsten layer, help reduce the difficulty of the subsequent sealing and testing process, and improve the accuracy of sealing and testing.

The invention discloses a high-performance hollow fiber membrane which is prepared by the following steps: firstly preparing a spinning solution, preparing a primary membrane of a polyether sulfone / polysulfone hollow fiber membrane by adopting wet spinning, and then performing post-treatment for 30 seconds to 5 minutes at the relative humidity of 10 to 70 percent and the temperature of 160 to 250 DEG C, so as to obtain the high-performance hollow fiber membrane. By adjusting the relative humidity during annealing, the damp-heat synergistic effect is achieved, stress generated in the phase change process can be quickly released, hot steam can conveniently and completely intrude into pores of a membrane, the interior of fiber is treated, and the mechanical strength is improved; meanwhile, a polymer chain is helped to reach the position with the minimum Gibbs free energy through rearrangement, smoothness of the inner surface, the outer surface and the pore surface of the membrane is facilitated, adsorption of platelets and the like on the surface of the fiber membrane is further reduced, the blood coagulation effect is improved, and the blood compatibility is improved.