238 results about "Oxygen plasma" patented technology

The invention provides a composite acrylic acid low-surface-energy antifouling coating, a preparation method and application, and belongs to the technical field of marine antifouling materials, the composite acrylic acid low-surface-energy antifouling coating comprises a three-layer composite structure, the three-layer composite structure comprises a bottom layer, a middle layer and a surface layer from bottom to top, the bottom layer is capsaicin-loaded polymethyl methacrylate, and the middle layer is a polymethyl methacrylate surface layer. The bottom layer is made of capsaicin, the middle layer is made of pressure-sensitive adhesive activated by oxygen plasma, the surface layer is made of dihydroxyl-terminated polydimethylsiloxane, the mass ratio of the bottom layer to the middle layer to the surface layer is (23-25): 1: (23-25), and the mass content of capsaicin in the bottom layer accounts for 5.82-5.75% of the total mass; based on the bonding strength change of the pressure-sensitive adhesive generated by oxygen plasma jet and the capsaicin for effectively inhibiting biological growth, polyacrylic acid is used as a self-polishing reservoir to continuously release an environment-friendly antifouling agent; the pressure-sensitive adhesive adheres to the polydimethylsiloxane layer through the adhesive force change generated by oxygen plasma to achieve the low-surface-energy antifouling effect, synergistic gain is achieved, the composite material intervenes into the biological fouling process from multiple aspects, and the composite material copes with the marine biological fouling process jointly.

The invention relates to the technical field of micro-fluidic biological detection, and discloses a micro-fluidic chip for rapidly detecting bacteria based on multi-mode detection, a preparation method and a detection method.The chip comprises a PDMS runner layer and a glass substrate layer which are sequentially arranged from top to bottom; the PDMS flow channel layer comprises an injection area used for receiving a to-be-detected sample and carrying out pretreatment; the focusing area is used for realizing three-dimensional fluid focusing of the detected particles through a coupling effect of viscoelasticity and an inertial effect; the detection area is used for performing electrical impedance detection and fluorescence detection on the focused particles; the outflow area is used for collecting and outputting the detected sample; the PDMS flow channel layer and the glass substrate layer are bonded through oxygen plasma to form a sealed channel structure, and the sealed channel structure is used for realizing electrical impedance and fluorescence dual-mode synchronous detection of microbial particles in a single flow channel. By optimizing the fluid focusing structure and the electrode design, high-precision synchronous detection of the microbial particles is realized.

The invention belongs to the technical field of separation membrane materials, and discloses a graphene oxide modified hollow fiber membrane for oily wastewater treatment and a preparation method of the graphene oxide modified hollow fiber membrane. Firstly, a hollow fiber base membrane is prepared through a phase inversion method; then performing oxygen plasma pretreatment to activate the surface; immersing the activated base membrane into a Tris-HCl buffer solution of dopamine and polyethyleneimine, and forming a polydopamine intermediate layer on the surface of the membrane through auto-polymerization of dopamine; and finally, firmly loading the graphene oxide nanosheets on the surface of the base membrane by using the intermediate layer to form a graphene oxide functional surface layer, and carrying out vacuum drying to obtain a final product. A three-layer gradient structure of'base membrane-polydopamine middle layer-graphene oxide surface layer 'is constructed, the hydrophilicity of graphene oxide is utilized to form a water membrane on the surface of the membrane, oil drops are repelled, the anti-pollution performance of the membrane is improved, the problem that the coating is easy to fall off is solved by means of the adhesion of polydopamine, and the preparation process is simple and controllable and is suitable for large-scale production.

The invention belongs to the technical field of synthetic leather, and particularly discloses breathable stripping-resistant water-based / solvent-free polyurethane synthetic leather and a preparation method thereof.The synthetic leather comprises base cloth, a solvent-free polyurethane layer and a water-based polyurethane surface layer, and the solvent-free polyurethane layer and the water-based polyurethane surface layer are sequentially arranged on the base cloth; modifying and activating the base cloth by a wide plasma cleaning machine; the solvent-free polyurethane layer slurry is prepared from a carbon dioxide-based polyether type A material prepolymer, a polyether type B material prepolymer, color paste, a dispersing agent, isocyanate modified aerogel and nano filler; the waterborne polyurethane surface layer slurry is prepared from epoxy resin modified carboxylic acid type waterborne polyurethane emulsion neutralized by triethylamine, epoxy modified aerogel, waterborne color paste, a defoaming agent and a thickening agent. The modified aerogel is introduced into the solvent-free polyurethane layer and the waterborne polyurethane surface layer, and oxygen plasma pretreatment activation on the base cloth is cooperated, so that the obtained waterborne / solvent-free polyurethane synthetic leather has an excellent breathable function and high peel strength, and has a wide market prospect.

The invention belongs to the technical field of bionic cilium sensors, and particularly discloses a magnetic bionic cilium and vesicle complex and a preparation method and application thereof.The preparation method comprises the following steps that S1, a cilium array male mold is prepared; then carrying out oxygen plasma treatment, silanization and curing stabilization; s3, injecting the magnetic composite precursor into a polydimethylsiloxane female die, applying pressure, and striking off; and S4, coating the mold surface with an Ecoflex precursor, performing thermocuring forming, performing magnetization treatment, and performing stripping to obtain the magnetic bionic cilia. According to the magnetic bionic cilia, the vesicle complex and the preparation method and application of the magnetic bionic cilia, the vesicle complex and the preparation method and application of the magnetic bionic cilia, high-magnetic signal output is achieved while the deformability of the cilia is guaranteed, the magnetic bionic cilia is used for non-contact real-time hemodynamic monitoring, meanwhile, specific response release of the vesicle complex is achieved, and a new thought is provided for design of responsive vascular implants.

The invention discloses porous carbon with a gradient structure, a preparation method of the porous carbon and application of the porous carbon in a negative electrode of a lithium ion battery. The porous carbon has a gradient structure with compact micropores on the surface and loose macropores inside. The preparation method of the porous carbon comprises the following steps: carrying out oleophylic modification on SiO2 to obtain hydrophobic SiO2; carrying out hydrophilic coating on NH4Cl to obtain PVP (Polyvinyl Pyrrolidone) coated NH4Cl; the preparation method comprises the following steps: mixing coal pitch, methylbenzene, oleic acid, hydrophobic SiO2 and PVP (at) NH4Cl to form a suspension; preparing a spherical precursor by a micro-fluidic emulsification method; and carbonizing, sequentially carrying out oxygen plasma treatment and HF solution etching, and removing the template to obtain the porous carbon with the gradient structure. The gradient distribution of the template and the pore-forming agent is realized through surface modification difference and a microfluidic technology, the pore structure and the particle size can be accurately regulated and controlled, the process is simple, the compatibility is high, the prepared porous carbon can be used as a substrate for a silicon-carbon composite negative electrode material, the volume expansion of silicon can be effectively buffered, and the service life of the silicon-carbon composite negative electrode material is prolonged. And the first coulombic efficiency, the specific capacity and the cycling stability of the lithium ion battery are improved.

The invention discloses antibacterial and antiskid PU leather and a preparation method and application thereof, and belongs to the technical field of PU leather.The preparation method comprises the steps that a ZIF-8 / g-CNcomposite photocatalyst is obtained through an in-situ growth method, silver-doped nano-hydroxyapatite is prepared through an ion replacement method, the ZIF-8 / g-CNcomposite photocatalyst and the silver-doped nano-hydroxyapatite are compounded through liquid phase adsorption, and the antibacterial and antiskid PU leather is obtained. The preparation method comprises the following steps: preparing composite antibacterial powder, uniformly dispersing the composite powder into acrylamide, Arabic gum and polyethylene glycol methyl ether methacrylate serving as monomers, initiating polymerization to form composite coating slurry, performing oxygen plasma activation on PU leather, blade-coating the composite coating slurry, and curing to obtain the antibacterial antiskid PU leather. The material integrates the functions of self-cleaning, antibiosis, skid resistance and wear resistance.

The invention relates to the technical field of fiber reinforced resin-based composite materials, and discloses a basalt fiber epoxy resin composite material as well as a preparation method and application thereof. Comprising the following steps: carrying out oxygen plasma treatment and dopamine bionic liquid deposition treatment on basalt fibers, dipping the basalt fibers in a mixed coupling agent solution, and coating the basalt fibers with nano TiO2 sol to obtain nano roughened basalt fibers; mixing bisphenol A epoxy resin, hydrogenated bisphenol A epoxy resin, hyperbranched polyesteramine and ionic liquid modified boron nitride nanosheets to obtain resin A; mixing an epoxy curing agent with a curing accelerator to obtain resin B; and mixing the resin A and the resin B to obtain a mixed material, and infiltrating the nano roughened basalt fibers in the mixed material to obtain the basalt fiber epoxy resin composite material. After the basalt fiber is subjected to bionic multi-stage interface treatment, the basalt fiber is matched with the modified epoxy resin, so that the interface strength, the mechanical property and the weather resistance of the composite material are remarkably improved, and the composite material has a relatively good application scene.

The invention discloses a preparation method of a lithium aluminum titanium phosphate solid electrolyte nano powder material, which comprises the following steps: S1, weighing a lithium source, an aluminum source, a titanium source and a phosphorus source, and preparing a sol precursor; s2, performing microwave treatment to obtain a gelatinous intermediate; s3, carrying out annealing treatment after grinding to obtain nano titanium aluminum lithium phosphate powder; s4, placing the substrate in a plasma enhanced atomic layer deposition reaction cavity, vacuumizing, and introducing plasma activation gas; alternately pulse trimethylaluminum and titanium tetrachloride precursors, and depositing to obtain a gradient oxide intermediate layer; s5, introducing oxygen plasma to oxidize the residual precursor to form a gradient oxide coating layer; and S6, carrying out annealing treatment to obtain the lithium titanium aluminum phosphate solid electrolyte nano-powder material. According to the preparation method disclosed by the invention, the side reaction of the LATP powder and lithium metal is effectively inhibited, the interface stability and the ionic conductivity are improved, and the high-performance requirement of an all-solid-state lithium ion battery on a solid electrolyte material can be met.

A polyelectrolyte hydrogel coating with strong substrate binding performance and a method of manufacturing the same are provided. The method includes: 1) activating a substrate by applying oxygen plasma; and 2) dissolving a polycationic polymer, a polymeric monomer, a silane coupling agent and an initiator to obtain a precursor solution, vacuumizing the precursor solution to remove air bubbles, applying the vacuumized precursor solution to a surface of the substrate activated by the oxygen plasma, and performing an in-situ polymerization and curing process under nitrogen or rare gas atmosphere. The polymeric monomer includes at least one of: acrylamide, acrylic acid, hydroxyethyl methacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid, polyethylene glycol (diol) diacrylate, 2-methacryloxyethylphosphocholine, 3-[[2-(Methacryloyloxy)ethyl]dimethylammonio]propane-1-sulfonate, and 3-[[2-(methacryloyloxy)ethyl]dimethylammonium] propionate. The silane coupling agent has a carbon-carbon double bond functional group.

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.

To provide a method of manufacturing a substrate structure capable of suppressing peeling of a protective film.SOLUTION: A method of manufacturing a substrate structure including an organic film and a silicon substrate, the method comprising: performing an ashing process on the substrate structure at a first temperature while applying a first bias; performing an ashing process on the substrate structure subjected to the first ashing process at a second temperature higher than the first temperature while applying a second bias lower than the first bias or without applying a bias; and forming a protective film on the substrate structure subjected to the second ashing process.SELECTED DRAWING: Figure 2

This invention belongs to the field of electrocatalytic materials and water electrolysis for hydrogen production, and discloses a Ni-RuO x Modified catalytic materials and their preparation methods, OER catalytic applications, and water electrolysis devices are disclosed. The preparation method of the catalytic material involves treating a mixture containing a ruthenium source, a nickel source, and potassium bromide with oxygen plasma to obtain a modified Ni-RuO2 precursor. The oxygen plasma treatment process is carried out at a temperature of 150-200℃ and a power of 100-150 W. The modified Ni-RuO2 precursor is then thermally annealed under a protective atmosphere at a temperature of 200-300℃ to obtain the Ni-RuO2 precursor. x Modified catalytic materials. This invention demonstrates that the preparation method described herein can achieve in-situ uniform doping of nickel in the RuO2 lattice, precise control of oxygen vacancies, and directional construction of discrete nanoparticles. This invention also demonstrates that the preparation method can significantly improve the OER performance of the prepared materials.

The application relates to the field of optical films, in particular to a preparation method of an optical diffusion film. The preparation method of the optical diffusion film comprises the following steps: uniformly mixing a curing agent with polydimethylsiloxane, curing, then performing oxygen plasma treatment and room temperature aging treatment to obtain a polydimethylsiloxane flat plate; dissolving PET particles and PMMA particles in a solvent to obtain a polymer solution; placing the polydimethylsiloxane flat plate above the polymer solution and standing to obtain the optical diffusion film. In the application, PMMA is used as a high glass transition temperature component to be blended with PET, the overall glass transition temperature of the blended system is improved, and the practicability of the optical diffusion film in a high-temperature environment is improved; strong scattering is provided by the difference between the refractive indexes of air holes and a polymer phase, a refractive index gradient is formed by using the refractive index difference between PET and PMMA, a secondary scattering interface is formed, high haze is ensured, light absorption is reduced, and high transmittance is maintained.

A hydrogen evolution electrode preparation method based on a three-period minimal curved surface structure belongs to the technical field of new energy electrolytic hydrogen production and fluid transportation, and comprises the following steps: constructing a three-dimensional model of the required three-period minimal curved surface structure; performing image slicing processing on the three-dimensional model by using slicing software; printing a required three-period minimal curved surface structure by using a plane projection micro-stereolithography 3D printer; a nanometer ultraviolet lamp is adopted to circularly irradiate the three-period extremely-small curved surface structure; soaking in a sulfuric acid solution and carrying out ultrasonic oscillation; carrying out vacuum drying and carrying out oxygen plasma hydrophilic treatment; depositing a nickel-based compact conductive layer on the three-period minimal curved surface structure by using chemical deposition; depositing a nickel-iron alloy catalyst on the three-period minimal curved surface structure of the nickel substrate by using electro-deposition; and carrying out ultrasonic oscillation with ethanol and vacuum drying. According to the application, collaborative design of catalyst distribution and a macro-microstructure is realized, and a new way is provided for preparation of a high-performance water electrolysis hydrogen production electrode.

The application belongs to the technical field of lithium ion battery cathode material, and provides a kind of plasma assisted in-situ construction lithium ion conductor coated high nickel ternary cathode material and its preparation method and application.The application forms oxygen plasma active group by high pressure ionization oxygen, the active group generated interacts with the gas generated by the thermal decomposition of the added solid source, can consume high nickel ternary cathode surface residual alkali and form a thin, continuous and dense lithium ion conductor coating layer on the surface of high nickel ternary cathode material in-situ, which helps to promote the development of high nickel ternary cathode material of lithium ion battery.The high nickel ternary cathode material prepared by the application shows high specific capacity, excellent cycle stability, rate performance and first charge-discharge efficiency.At the same time, the preparation method provided by the application is simple, fast, efficient and convenient, and the cost is low, which can effectively remove the residual alkali on the surface of high nickel ternary cathode material and improve the structural stability of high nickel ternary cathode material.

The invention relates to a wear-resistant HDPE (high-density polyethylene) pipe and a preparation method thereof.The wear-resistant pipe comprises an inner-layer pipe and an outer-layer pipe, the inner-layer pipe contains high-density polyethylene resin, pretreated aluminum oxide filler and antibacterial particles, and the pretreatment process comprises oxygen plasma treatment, metal organic framework coating treatment and titanate coupling agent treatment; the filler dispersity and the interface bonding strength are effectively improved. The preparation method comprises the steps of raw material mixing, extrusion molding, foaming agent spraying, outer layer covering and cooling shaping. By optimizing filler pretreatment and the pipe structure, the wear resistance, pressure resistance, impact strength and environmental adaptability of the pipe are remarkably improved, and the pipe is suitable for harsh working conditions and water purification pipes.

The invention relates to the technical field of microelectronic manufacturing, and discloses a preparation method and a transfer method of a bearing support plate for transferring a miniature LED chip, and the preparation method comprises the steps: carrying out the cleaning and oxygen plasma activation of a bearing support plate base material; a five-layer structure composite membrane material is prepared by adopting a roller blade coating process, and the composite membrane material comprises a PET base material layer, and a first silica gel layer and a second silica gel layer which are respectively coated on two sides of the PET base material layer; after curing, the second silica gel layer side of the composite membrane material is attached to the bearing carrier plate base material; according to the transferring method, chip transferring is achieved through the steps of contact attaching, laser stripping and thermocompression bonding by means of the bearing carrier plate. According to the invention, the thickness uniformity of an adhesive layer is improved, precise adhesive force regulation and control of chip picking and releasing are realized, the high-temperature process of a traditional spin coating process on a carrier plate is avoided, the problems of chip fragmentation, displacement and the like are effectively solved, and the yield, efficiency and precision of Micro LED mass transfer are greatly improved.

The invention relates to a method for preparing a substrate activation-assisted aerosol deposition film, which comprises the following steps of: activating a substrate before the aerosol deposition film, namely sequentially performing plasma activation treatment of argon, oxygen and nitrogen at 25 + / -1 DEG C and under the pressure of 50-100Pa, removing organic matters on the surface by argon plasma activation, and removing organic matters on the surface by nitrogen plasma activation. A weak boundary layer is removed to form a certain rough structure, so that the surface area is increased; oxygen plasma generates a large number of polar groups such as hydroxyl on the surface of the substrate; nitrogen plasma nitrides the base material to generate Al-N bonds, so that the surface energy is improved, and a strong interface is formed; experiments prove that compared with an unactivated base material, the bonding strength of the coating subjected to aerosol deposition and the surface of the base material is improved to 33.5 MPa from 17.2 MPa, and an SEM pattern shows that the interface between the activated base material and the coating is clear, the coating is uniform, and the porosity is low.

The invention discloses a carbon material rich in intrinsic defects as well as a preparation method and application thereof, and belongs to the technical field of catalysts, fullerene or fullerene derivative carbon cages adopted by the invention have a pi conjugated structure, so that relatively strong pi-pi interaction force exists among molecules. Fullerene or a fullerene derivative is used as a raw material, a macroscopic crystalline material, namely a fullerene condensed state precursor, is obtained through self-assembly based on intermolecular acting force, the fullerene condensed state precursor is subjected to pre-etching treatment through oxygen plasma, surface modification is conducted on the fullerene condensed state precursor, and the fullerene or fullerene derivative is obtained. The preparation method comprises the following steps: preparing a fullerene condensed state precursor, performing two-stage temperature programming heat treatment of low-temperature pre-etching treatment and high-temperature roasting in ZnCl2 molten salt, endowing the fullerene condensed state precursor with five-membered ring topological defects and carbon intrinsic defects of boundaries and curvatures, so as to obtain the carbon material rich in intrinsic defects, and endowing the carbon material with good electro-catalytic performance by the intrinsic defect sites.

The present application belongs to the technical field of two-dimensional material preparation and device preparation, and more particularly to a method for preparing star-shaped molybdenum disulfide monocrystals with controllable morphology and application thereof. The present application provides a method for preparing star-shaped monolayer molybdenum disulfide with controllable morphology based on oxygen plasma pretreatment and chemical vapor deposition. By introducing a novel oxygen plasma assisted technology, the growth substrate is pretreated by oxygen plasma, the growth environment of TMDs is improved, and the chemical vapor deposition is coordinated to realize large-scale preparation of high-quality star-shaped molybdenum disulfide monocrystals. The defects of low pattern regulation precision, poor repeatability and insufficient hetero-integration capability in the prior art are solved, and a reliable material basis is provided for its application in high-speed and high-precision electronic devices.

The utility model relates to heating platform structure technical field especially relates to a kind of heating platform structure for vacuum cavity.Its technical scheme includes vacuum cavity and with the lower cavity component of vacuum cavity moulding, the lower cavity component includes lower cavity plate and heating plate component, vacuum joint and at least one group of collar joint are fixedly installed on lower cavity plate, oil passage is equipped in the heating plate component, temperature measuring thermocouple component is fixedly installed on lower cavity component, and the temperature measuring thermocouple component real-time monitoring heating plate component's temperature.The utility model improves the temperature of reaction cavity to suitable range, makes the active particle movement speed of oxygen plasma accelerate, and the chemical reaction rate of photoresist is significantly improved, realizes the uniform distribution of cavity temperature, and promotes to ensure the plasma reaction consistency of each area of workpiece surface.

The invention provides a solar cell and a preparation method thereof, and a photovoltaic module, and the preparation method of the solar cell comprises the following steps: providing a solar cell substrate, the surface of which is provided with a transparent conductive layer; forming a mask layer with a patterned through hole on the transparent conductive layer; performing oxygen plasma treatment, ammonia plasma treatment or oxygen-ammonia mixed plasma treatment on the transparent conductive layer in the region corresponding to the patterned through hole; removing the mask layer; and preparing a metal electrode on the transparent conductive layer in an area corresponding to the patterned through hole. The preparation method is beneficial to improving the photoelectric conversion efficiency of the solar cell.

The application belongs to the technical field of display, and particularly relates to an IGZO thin film transistor based on gradient gallium doping and hydrogen plasma treatment and a preparation method thereof. The application adopts ALD technology to construct a three-section linear gradient Ga-doped active layer, the bottom low Ga area ensures efficient carrier transport, the migration rate can reach 58.7 cm 2 Vs, the top high Ga area uses the high electronegativity of Ga-O bond and the wide band gap characteristics to inhibit the back channel defects, the Delta Vth under NBITS test is as low as 2.2 V, and the stability is improved by more than 5 times compared with the undoped device. In-situ hydrogen / oxygen plasma composite treatment is carried out in the ALD chamber, the saturation dangling bond is compensated, the interface state density is controlled to be ≤10 12 cm ‑2 eV ‑1 , and the sub-threshold swing is optimized. Periodic pauses are introduced in the active layer deposition, the film surface roughness is ≤0.5 nm; a two-step method is used for contact hole etching, and the top high Ga layer is ≥5 nm. The comprehensive performance meets the high-end application requirements such as high-resolution display and flexible display, and the application value and market competitiveness are remarkable.

A method of manufacturing a semiconductor package (100) is disclosed. In this method, for example, the surface of an insulating resin layer (20) on a substrate (10), i.e., a printed wiring board, is irradiated with oxygen plasma (plasma P) to perform surface treatment. The insulating resin layer (20) is formed from, for example, a solder resist containing an inorganic filler. The inorganic filler (22) deposited on the surface of the solder resist by irradiation of the plasma (P) is removed by ultrasonic cleaning. Then, a plating layer (30) is formed on the solder resist from which the inorganic filler (22) has been removed by electroless plating. According to this method, since the inorganic filler that affects the electroless plating is removed, the electroless plating can be reliably deposited on the surface of the solder resist.

The invention discloses a polylactic acid plasticizer and a polylactic acid film preparation process, and belongs to the field of biomass conversion materials. The bio-based plasticizer is prepared from cardanol and (Z, Z)-9, 12-octadecane dienoic acid dimer as raw materials through the steps of chlorohydrination, epoxy group reconstruction, etherification and the like, an acidic molecular sieve and KOH / ZSM-5 are preferably selected as catalysts, the feed ratio and reaction conditions are optimized, and the yield is high; in the preparation of the polylactic acid film, the compatibility of the plasticizer and polylactic acid is remarkably improved through oxygen plasma modification of the plasticizer, premixing to form a swelling layer, ultrasonic dispersion and regulation and control of the bio-based compatilizer, the tensile strength, elongation at break, water absorption and degradation rate of the obtained film are all at a higher level, and the film has excellent mechanical properties, water resistance and biodegradability; the invention is suitable for packaging and medical fields.

The invention discloses a corrosion-resistant composite material for an industrial ton bag and a preparation method of the corrosion-resistant composite material. The preparation method of the composite material comprises the following steps: firstly, carrying out plasma activation treatment on polypropylene fibers to improve the surface activity of the polypropylene fibers, then immersing the polypropylene fibers into a graphene oxide dispersion liquid, carrying out drying and heat setting to form a graphene reinforced support layer, and then carrying out plasma etching through carbon tetrafluoride and oxygen to construct a micro-nano dual-scale structure on the surfaces of the fibers so as to obtain the graphene reinforced composite material. And finally, performing high-pressure emulsification on fluorinated polyolefin emulsion containing polyethylene, fluoroelastomer, nano silicon dioxide and the like, blade-coating the surface of the fiber with the emulsified fluorinated polyolefin emulsion, and performing hot-pressing compounding. Through multi-layer synergistic modification, the mass change rate of the composite material in a strong acid and strong alkali environment is lower than 1%, the strength retention rate exceeds 89% after ultraviolet aging for 500 h, the peel strength reaches 8.2 N / 25 mm, the composite material has excellent corrosion resistance, aging resistance and interface bonding force, and the service life of the ton bag in a severe environment is effectively prolonged.

The application relates to a device and method for regenerating waste catalysts, belonging to the field of solid waste catalyst recycling. After being ground, the waste catalysts enter a plasma discharge area under the action of a blower, are in a fluidized state in a bed layer, are activated by plasma generated by an equal dielectric barrier discharge (DBD) device, enter a cyclone separator, and the separated waste catalyst powder is recycled to the plasma discharge area through a return pipeline. The device is divided into two modules. The first module utilizes argon and oxygen plasma to degrade the carbon and sulfides in the waste catalysts, effectively increasing the active area of the precious metals. The second module utilizes hydrogen to reduce the precious metal oxides in the waste catalysts, increasing the concentration of the precious metals, and thus realizing the regeneration of the waste catalysts. After the waste catalysts are treated, water vapor is introduced into the device to generate water vapor plasma to clean the device to prevent clogging, prolong the service life of the device, and improve the quality of the products.

The invention provides a composition of an environment-friendly dispersing agent for water-based paint and a preparation method of the composition, intercalation modified mica powder pretreated by oxygen plasma is used as a core component and is dispersed in deionized water, and then a polymer dispersed chain segment monomer, a functional auxiliary monomer and an initiator are introduced to prepare the environment-friendly dispersing agent for the water-based paint. And carrying out graft polymerization reaction under the action of a chain transfer agent, and finally carrying out post-treatment to obtain the product. Polymer dispersed chain segments are firmly grafted to the surface of mica through chemical bonding, mica is creatively converted into an efficient dispersing agent carrier from a traditional filler, and the obtained product can improve the dispersion stability and long-term storage stability of a coating and enhance the mechanical property of a coating film.