1009 results about "Autoclave" patented technology

The invention provides a vacuum bag packaging method for composite material forming, and belongs to the technical field of aero-engine nacelle composite material autoclave forming. After the prepreg is laid, a layer of strippable cloth is laid on the prepreg; air-permeable felt strips fixed to the upper surface of the mold are arranged between the side edges of the prepreg and the air exhaust holes, air-permeable wool top felts are arranged on the two sides of the prepreg, the length direction of the air-permeable felt strips extends in the length direction of the prepreg, and the upper surfaces of the air-permeable felt strips and the side faces, back to the prepreg, of the air-permeable felt strips are covered with first adhesive demolding cloth; the upper surface of the mold is covered with a vacuum bag, the vacuum bag is covered with prepreg, breathable felt strips, strippable cloth and air exhaust holes, and the surface of the vacuum bag is connected with the upper surface of the mold in a sealed mode; and placing the mold in an autoclave for molding. By means of the treatment scheme, the maintenance cost of the mold air exhaust hole is reduced.

The invention provides a 3D printing foaming part and a preparation method and application thereof, and belongs to the technical field of 3D printing. According to the method for 3D printing of the foaming part, polyamide powder serves as a raw material, the 3D printed part is prepared, then the 3D printed part is subjected to supercritical fluid kettle pressure foaming, and the 3D printed foaming part is obtained. By controlling the melting point and the average particle size of the polyamide powder, the printing temperature and the solubility of supercritical fluid in the 3D printing foaming part, the 3D printing foaming part with high rebound resilience, bending resistance and hydrolysis resistance is obtained, and the 3D printing foaming part has wide application prospects in the field of foaming shoe materials.

A system, method, and process for direct, precise measurement of extension / strain of a metallic round or flat tensile specimen or measurement of crack growth rates on a metallic CT specimen under control forces of extreme temperature, pressure and adverse environment are applied to a pre-crack metallic specimen within an autoclave.

The invention discloses a fuel rod cladding surface corrosion product deposition test device and method, and belongs to the field of nuclear power. The fuel rod cladding surface corrosion product deposition test device comprises a water supply section and a test section, the test section comprises a high-pressure kettle and a cladding pipe contained in the high-pressure kettle, and a heater is arranged in the cladding pipe to simulate heating of a fuel rod; the water supply section is used for providing circulating solution for the test section and comprises a coolant water tank, a dirt source water tank, a heating device, a pump set and a circulating pipeline, the coolant water tank circularly intervenes in the circulating pipeline to provide circulating simulated coolant, the dirt source water tank is used for injecting simulated dirt liquid into the circulating pipeline, the pump set is used for providing driving force, and the heater is used for heating. The device can accurately control the hydrochemical conditions of the dirt deposition test, keeps the consistency and repeatability of the test conditions in the test process, effectively improves the simulation test precision, and optimizes the test efficiency.

A vertical high-temperature coating autoclave, comprising an autoclave body (1), a heat recovery device (2), a driving assembly (3), a supporting frame (4) and a stirring assembly (5), wherein the heat recovery device (2) is used for absorbing the heat from high-temperature flue generated by a reaction in the autoclave body (1), the absorbed heat is used for heating cold water, and a high-temperature and high-pressure gas-liquid mixture is used to complete cleaning of the kettle body (1) and self-cleaning of the stirring assembly (5) in combination with the rotation and vibration of the stirring assembly (3), so as to clean up high-melting-point residues and dust; a wall-scraping stirring device (51) is used for scraping the dust in a non-stirring area, and to shake the dust off in combination with vibration; a spiral mixing device (52) is used for uniform stirring to make small agglomerates break apart under impact and agitation, and driving finished products to rotate downward, so as to achieve rapid discharge and prevent a bottom discharge port from being blocked; a stirring and flushing device (53) is used for integrated stirring, autorotation stirring and raw-material upturning; and the inner wall of the autoclave body (1) is scraped by using a scraper rod (531), so as to prevent raw materials from sticking to the inner wall of the autoclave body (1).

The invention belongs to the technical field of rock mechanics and oil and gas development, and particularly relates to a deep shale rock mechanics and fracture evolution characteristic collaborative testing system and method.The system comprises a full-diameter triaxial autoclave, a hydraulic fracturing experiment mechanism, a high-temperature fracture experiment mechanism, a strain monitoring mechanism and an acoustic emission signal monitoring mechanism; the method comprises the following steps: carrying out a mechanical property test, a thermal cracking characteristic experiment and a hydraulic fracturing experiment on the same shale, analyzing a thermal cracking process and a hydraulic fracturing process, analyzing and speculating generation positions, generation time and complexity of thermal cracking cracks and hydraulic fracturing cracks of the shale, and the like. According to the invention, the real occurrence environment of the deep shale reservoir is simulated, the shale mechanical property test is carried out, the generation of high-temperature shale thermal cracking micro-cracks and the crack extension or development state in the hydraulic fracturing process are monitored, a crack evaluation method is provided, and data support is provided for improving the high-temperature thermal cracking and hydraulic fracturing effects of the deep shale.

The present invention relates to the field of carbon fiber material molding, and specifically to a carbon fiber material molding autoclave. The carbon fiber material molding autoclave includes a tank body, an oil tank, an oil tank heating mechanism and an air heating mechanism. The tank body is provided with a pressurizing channel for pressurizing the inside thereof, and is provided with an air temperature monitoring device for detecting the air temperature in the tank body; the oil tank is located in the tank body, is filled with oil, and is provided with an oil temperature monitoring device for detecting the oil temperature, the surface of the oil is covered with soft silicone for wrapping a workpiece, and the outer ring of the soft silicone is sealed and connected to the oil tank; the oil tank heating mechanism is installed in the oil tank, and is used to work according to the oil temperature monitored by the oil temperature monitoring device; the air heating mechanism is installed in the tank body, and is used to work according to the air temperature monitored by the air temperature monitoring device. The present invention can keep the temperature constant during the material molding process to improve the quality of the workpiece.

The invention belongs to the technical field of telegraph pole manufacturing, and particularly relates to steam curing equipment for cement telegraph pole manufacturing and a steam curing method of the steam curing equipment. Comprising a steam curing tank used for steam curing of an injection molded telegraph pole; the outer shell is used for installing the supporting assembly and integrally moving; the rotating assembly is used for adjusting the rotating angle of the supporting assembly; the supporting assembly is used for placing a plurality of telegraph poles; the moving assembly is used for driving the air injection assembly to reciprocate; the air spraying assembly is used for spraying steam to maintain the telegraph pole; the ventilation assembly is used for feeding external steam into the air injection assembly; a first motor is matched with a first driving gear and an inner gear ring, a worker can conveniently adjust the angle of a mounting ring, then the position of each set of supporting plates is adjusted, reasonable placement of telegraph poles is facilitated, and the situation that due to the fact that a traditional steam-curing chamber lacks a structure for reasonably placing the telegraph poles, the telegraph poles cannot be placed easily when steam-curing is conducted on the telegraph poles is avoided. And the problem of disordered placement is solved.

The invention relates to a textured KCu7S4 thermoelectric material and a preparation method thereof, and the method comprises the steps: sequentially adding a prepared KOH aqueous solution, CuCl2. 2H2O and Na2S. 9H2O into a high-pressure kettle, and fully stirring for dissolving; dropwise adding an N2H4.H2O aqueous solution into the mixed solution, fully stirring, sealing, transferring to a microwave chemical synthesis instrument, heating, keeping stirring, and reacting at a target temperature and self-generated pressure to generate a KCu7S4 nanowire preferentially growing along a [001] crystal orientation; and after the reaction is finished and natural cooling is carried out, a product is collected through centrifugation, full cleaning and vacuum drying are carried out, and then the KCu7S4 thermoelectric material with [001] preferred orientation in the direction perpendicular to the pressure direction is obtained through spark plasma sintering. According to the method, a surfactant and an organic solvent are not used, and macro, rapid, efficient and controllable preparation of the KCu7S4 nanowire is realized through a low-temperature, low-cost and low-energy-consumption microwave-assisted hydrothermal process.

The invention provides a steel slag stability detection method based on full-particle-size-range steel slag aggregate concrete. The steel slag stability detection method comprises the following steps: step 1, preparing steel slag aggregate; step 2, preparing a concrete test piece and detecting compressive strength; 3, autoclaving treatment: carrying out autoclaving treatment on the steel slag-doped aggregate concrete test block by using an autoclave, and naturally cooling after the autoclaving treatment is finished; 4, comparing strength, and calculating the compressive strength change rate of the steel slag aggregate-doped concrete before and after autoclaving; and 5, evaluating the stability of the steel slag, namely evaluating the stability according to the compressive strength change rate in the step 4, if the compressive strength change rate of the steel slag aggregate-doped concrete before and after autoclaving is smaller than a rated ratio, determining that the stability of the steel slag is unqualified and cannot be used as an aggregate to prepare concrete, otherwise, determining that the steel slag is qualified. The method can quickly, effectively, accurately and reliably detect the stability of the steel slag aggregate as the concrete, and promotes the resource utilization of the steel slag as the concrete aggregate.

The invention discloses a two-dimensional metal oxide composite reduced graphene oxide burning rate catalyst, which is prepared by the following steps: uniformly grinding glucose, ammonium nitrate and transition metal nitrate, calcining at high temperature to generate a two-dimensional metal oxide nanosheet, mixing the two-dimensional metal oxide nanosheet with surfactant modified reduced graphene oxide powder, and sintering at high temperature to obtain the two-dimensional metal oxide composite reduced graphene oxide burning rate catalyst. And transferring into a high-pressure hydrothermal kettle for solvothermal reaction, so that the reduced graphene oxide and the two-dimensional metal oxide nanosheet are compounded to form the composite burning rate catalyst with a 2D-2D structure. Two two-dimensional materials are compounded through a solvothermal method, the defects of accumulation of reduced graphene oxide and aggregation of the two-dimensional metal oxide due to high surface energy are effectively avoided, meanwhile, the high conductivity of the reduced graphene oxide is utilized, the synergistic catalysis effect of the metal oxide and the carbon material is enhanced, and the performance of the composite material is improved. The composite material has a good catalytic effect on the thermal decomposition process of ammonium perchlorate.

The invention discloses a device and a method for preparing silicon nitride powder with high sintering activity by a self-propagating method. The method comprises the following steps: mixing silicon powder and silicon nitride powder to obtain a mixed raw material; putting a porous plate into a crucible, scattering magnesium powder on the porous plate, and stacking the mixed raw material on the magnesium powder; sealing and vacuumizing the crucible, then filling nitrogen, repeating the operation for a plurality of times, and keeping the nitrogen atmosphere and pressure in the crucible; igniting the magnesium powder in the crucible, and starting a self-propagating combustion reaction; and cooling the crucible to obtain the silicon nitride powder with high sintering activity. The device comprises an ignition system, a self-propagating autoclave and a temperature detection module, one end of the ignition system and one end of the temperature detection module extend into the self-propagating high-pressure kettle. According to the method and the device, a continuous ventilation low-pressure self-propagating method is adopted, sufficient nitrogen is ensured to participate in the reaction, the raw materials are completely reacted, the yield and the purity of the product are ensured, the alpha-phase content of the product is relatively high, and the self-propagating device is simple in structure and convenient to operate.

The invention discloses a preparation method of CoWO (cobalt tungsten oxide) modified NbOp-n heterojunction NbO5 / CoWO photocatalyst powder. The preparation method comprises the following steps: dissolving cobalt salt and tungsten salt in deionized water, stirring and mixing, carrying out hydrothermal reaction in an autoclave, washing and drying to obtain CoWO powder; the preparation method comprises the following steps: dissolving niobium oxalate and ammonium carbonate in deionized water, adding CoWO powder, carrying out a hydrothermal reaction in an autoclave, and carrying out washing and drying treatment to prepare NbO / CoWO photocatalyst powder. According to the method, the hydrothermal reaction temperature is regulated and controlled, and the mass ratio of raw materials is optimized, so that the catalyst forms a p-n heterojunction structure of NbOmicron flower loaded CoWOnano particles. The prepared catalyst has high norfloxacin wastewater degradation efficiency under visible light irradiation, has the advantages of simple preparation process, low reagent cost, high catalytic activity and good structural stability, and can be effectively applied to purification treatment of antibiotic polluted water.

The invention discloses a method for preparing low-carbon cement based on construction wastes, which comprises the following steps: carrying out deep hydrothermal reaction on the construction wastes by using an autoclave under high-temperature and high-pressure conditions, so that silicon-aluminum minerals in the construction wastes are subjected to more thorough hydrothermal rearrangement to generate more stable hydrated silicate and aluminosilicate; the reaction activity of the clinker can be improved at the subsequent lower calcining temperature, so that the utilization rate and the high activity of complex components such as the building wastes in the cement preparation process are realized. The low-carbon cement disclosed by the invention is relatively high in later compressive strength and breaking strength, the strength grade of the low-carbon cement is 32.5, and the low-carbon cement meets building requirements and can be widely applied to the fields of buildings, roads and the like. According to the invention, closed cycle of solid waste-material is realized through waste recycling, and double innovation of material performance and ecological benefit is achieved.

The invention provides a wide pH applicable multi-biomolecule detection MOF probe, a preparation method, a detection method and application, the probe is an MIL-53 (Fe) (at) AA (at) EZ probe, and comprises a metal organic framework MIL-53 (Fe), amino acid and enzyme; the preparation method comprises the following steps: weighing terephthalic acid and ferric chloride hexahydrate, adding into N, N-dimethylformamide, mixing and stirring, pouring the mixed solution into a stainless steel autoclave, heating and reacting, naturally cooling to room temperature, centrifugally separating a product, and washing with N, N-dimethylformamide and absolute ethyl alcohol to obtain the metal organic framework MIL-53 (Fe). The preparation method comprises the following steps: mixing a metal organic framework MIL-53 (Fe) with an amino acid solution, and carrying out ultrasonic treatment and stirring to obtain an MIL-53 (Fe) coated AA solution; the method comprises the following steps: dissolving enzyme in an MIL-53 (Fe) (at) AA solution, uniformly mixing, stirring, centrifugally separating a product, taking precipitate, and drying in vacuum to obtain the MIL-53 (Fe) (at) AA (at) EZ probe. The pH application range is wide, one-step detection can be achieved, and the method has the advantages of being rapid in reaction, high in sensitivity, low in detection limit and easy and convenient to operate.

The invention belongs to the technical field of concrete prefabricated parts, and relates to an autoclaved aerated concrete composite thermal insulation wallboard and a manufacturing process thereof. The autoclaved aerated concrete composite thermal insulation wallboard is of a three-layer composite structure and comprises autoclaved aerated concrete layers on the two sides and a phenolic aldehyde board arranged between the autoclaved aerated concrete layers on the two sides. The manufacturing process comprises the following steps: carrying out high-temperature steam curing on the phenolic aldehyde plate in advance through a still kettle, then obliquely inserting and fixing the phenolic aldehyde plate by using a reinforcing mesh (the area of the reinforcing mesh is larger than that of the phenolic aldehyde plate), sinking into a mold filled with slurry for pre-curing, cutting after the composite thermal insulation wallboard is preliminarily formed, punching two sides of the wallboard, and then putting into the still kettle for autoclaved curing, thereby obtaining the composite thermal insulation wallboard. According to the manufacturing process, the phenolic aldehyde board is effectively prevented from being separated from the autoclaved aerated concrete layer, cracks are effectively prevented from occurring at the edge intersection position of the autoclaved aerated concrete and the phenolic aldehyde board, the percent of pass of the wallboard is increased, the service life of the wallboard is prolonged, and the autoclaved aerated concrete composite wallboard has wide market prospects.

The invention discloses a rock permeability testing system in a high-temperature and high-pressure environment and a using method thereof, and belongs to the technical field of geothermal development or coal in-situ gasification mining. The test system is composed of a stress loading system, a test kettle assembly and a magnetic particle imaging system. When in use, the stress loading system and the test kettle assembly provide conditions such as high temperature, high pressure, seepage fluid and the like for a test piece; and detecting the spatial distribution state of the nano magnetic induction particles added in the seepage fluid through a magnetic particle imaging system to observe the pore and crack distribution characteristics in the test piece or detecting the nano magnetic induction particles added in the pollutant solution to observe the pollutant migration condition. The test system is scientific in design, simple in structure and easy to operate and maintain, can monitor pore fracture distribution and pollutant migration conditions in the test piece in real time under high-temperature and high-pressure conditions, provides accurate dynamic observation data, and provides important technical support for reservoir assessment and optimization in a complex environment.

The invention relates to the technical field of concrete block autoclaving, in particular to an autoclaving device for producing concrete block bricks based on building waste, which comprises a pipeline I, a kettle cover, a threaded rod, a connecting block I, a convex block, a disc, an L-shaped block I, an L-shaped block II, a baffle block and a pipeline II, the connecting arm is communicated with a pipeline I; a kettle cover is fixedly connected to the pipeline I and is in contact with the still kettle; a threaded rod is screwed on the connecting arm; a first connecting block is fixedly connected to the threaded rod. The first connecting block is fixedly connected with a protruding block. The kettle cover is rotationally connected with a disc; a groove is formed in the disc, and the protruding block is located on the inner side of the groove. A worker only needs to unscrew the kettle cover according to conventional operation, excessive steam in the still kettle can be discharged through the second pipeline, the situation that the worker is scalded due to the fact that a large amount of steam gushes out when the kettle cover is opened is avoided, additional procedures are not needed for discharging the steam, the manual operation difficulty is reduced, and the efficiency is improved.

The utility model discloses a production line for preparing manganese sulfate from zinc smelting manganese-containing slag, the production line for preparing manganese sulfate from zinc smelting manganese-containing slag comprises an autoclave evaporator and at least one reaction tank, the autoclave is provided with a gas inlet and a gas outlet opposite to the gas inlet, the autoclave is suitable for accommodating a zinc anode slime mixture, the gas inlet is suitable for introducing reducing gas, and the gas outlet is suitable for introducing reducing gas; carrying out reduction leaching reaction with a zinc anode mud mixture; the reaction tank is positioned at the downstream of the high-pressure kettle and is used for performing impurity removal treatment on a solution flowing into the reaction tank; and the evaporator is positioned at the downstream of the reaction tank and is suitable for evaporating, crystallizing and drying the solution flowing into the evaporator. Therefore, through the cooperation of the autoclave, the reaction tank and the evaporator, a continuous production line for reduction leaching, purification and impurity removal, evaporative crystallization and drying is formed, the high value of manganese ions and the recycling of the zinc smelting manganese-containing slag can be optimized, the technological process and the production cost can be saved, and the production line is high in applicability and universality, environmentally friendly and capable of saving energy.

The invention discloses a grid spring fluctuation load stress corrosion test device and method. The device comprises a high-pressure kettle; an environment control system; the loading system comprises a loading tester and a loading pair, and the loading pair is used for applying constant deformation and fluctuation load to the grillage spring; the loading tester controls the loading pair to move in the high-pressure kettle until the loading pair is in contact with the grillage spring; the contact point measuring system comprises a constant voltage source and a first signal acquisition device, constant voltage is applied to the grillwork spring and the loading pair through the constant voltage source, and the first signal acquisition device monitors current abrupt change and determines a loading starting point; according to the integrity measuring system, a constant current source provides stable direct current, a current reversing device switches the current direction at a preset frequency, and a second signal collecting device monitors changes of electric signals at the two ends of the grillwork spring in real time and determines the complete state of the grillwork spring. According to the invention, accurate identification of the loading starting point of the grillage spring and real-time monitoring of the integrity state in the high-pressure environment are realized.

The invention belongs to the technical field of metal material and coating performance detection, and particularly relates to a high-pressure hydrogen permeation testing device and method.The testing device comprises a gas phase system and an electrochemical testing system, and the gas phase system comprises a high-pressure kettle, a hydrogen cylinder, a nitrogen cylinder and a vacuum treatment device; the autoclave is sealed and communicated with the hydrogen cylinder, the nitrogen cylinder and the vacuum treatment device; a first test port is formed in the upper part of the autoclave; the electrochemical testing system comprises an electrochemical workstation and an electrolytic tank; the electrolytic tank is connected to the upper part of the autoclave; the electrolytic tank is provided with a reference electrode and an auxiliary electrode, the lower part of the electrolytic tank is provided with a second test port, and the first test port and the second test port are connected with closed rubber rings and jointly clamp a sample to be tested through the closed rubber rings; the electrochemical workstation is electrically connected with the auxiliary electrode, the reference electrode and the to-be-tested sample, so that the service condition of the to-be-tested sample can be accurately simulated, the hydrogen permeation process in the actual working condition can be more truly reflected, and the accuracy of a hydrogen permeation test experiment is improved.

The dry gas sealing structure comprises a spring seat, a main shaft, a movable ring, a static ring, a shaft sleeve, an inner gland and an outer gland, the shaft sleeve is sleeved on the main shaft, the movable ring is installed on the shaft sleeve through the spring seat, the movable ring is located in a high-pressure cavity formed by the inner gland and the outer gland, the cavity is connected with a sealing gas inlet, and the sealing gas inlet is connected with a sealing gas outlet. The static ring and the moving ring are correspondingly installed in a matched mode, the static ring is fixed to the outer gland, one or more sealing assemblies are arranged on the other side of the moving ring, the sealing structure can form a nitrogen cavity with positive pressure difference to isolate media from sealing and the environment, and zero leakage of the media is guaranteed. The defects that a traditional mechanical seal for the kettle is blocked by liquid, operation is complex, sealing liquid pollutes a process medium and the service life is short are overcome, and the service life can reach 25,000 hours.

The invention discloses a preparation method of a rare earth ion doped antibacterial modified hydroxyapatite whisker material, and relates to the technical field of medical biomaterials.The preparation method comprises the steps that acetamide is dissolved in deionized water, and a solution A is obtained; dissolving calcium salt, cerium salt and ammonium salt in a certain proportion in the solution A to obtain a solution B; stirring the solution B at room temperature, performing ultrasonic dispersion, and adjusting the pH value to be acidic to obtain a solution C; and putting the solution C into a high-pressure reaction kettle, heating and reacting, aging, cleaning, carrying out suction filtration, and drying to obtain the cerium-doped hydroxyapatite whisker material. The preparation process is simple, the product is stable, and the prepared modified hydroxyapatite whisker has an obvious antibacterial effect on escherichia coli and staphylococcus aureus and can be applied to the field of bone repair antibacterial materials.

The invention belongs to the technical field of Pick rackets, and particularly relates to a Pick racket and a preparation method thereof. The preparation method of the Pick racket comprises the following steps: (1) mixing polypropylene, modified polystyrene and a compatilizer, and carrying out melt extrusion granulation to obtain premixed particles; placing the premixed particles in an autoclave, introducing carbon dioxide to discharge air in the autoclave, introducing carbon dioxide, and heating to a specified temperature and pressure; preserving heat, releasing pressure, and cooling to obtain foamed polypropylene; (2) foamed polypropylene is put into a Pick racket mold, heated and cured into a single integrated EPP inner core with holes and grooves; and (3) a carbon fiber material is attached to the EPP inner core through a hot melt adhesive, the EPP inner core is put into a Pick racket mold, hot pressing curing and cooling are conducted, then the Pick racket is taken out, a Pick racket panel is obtained, modification, coating and assembling are conducted, and the Pick racket is obtained. The Pick racket is excellent in mechanical property, high in temperature resistance, better in quality and long in service life.

The invention relates to the technical field of autoclave sampling, in particular to an accurate sampling device for an autoclave. The reaction kettle body is provided with a sampling structure for sealing and sampling an internally processed object; the sampling structure comprises an assembly shell for integrally fixing the reaction kettle body, and a pressure equalizing unit and a sampling unit which are connected with the reaction kettle body are arranged in the assembly shell; in the sampling process of the reaction kettle body, the internal air pressure is discharged to the sampling unit, and the internal pressure of the reaction kettle body and the atmospheric pressure are kept in a balanced state through the sampling unit. According to the invention, the pressure equalizing unit is matched with the sampling unit, so that the internal air pressure of the reaction kettle is balanced with the atmospheric pressure before sampling, and sample splashing or leakage caused by pressure difference is prevented; after sampling, the inside of the reaction kettle can be recovered to a normal processing pressure state, the subsequent processing flow is not influenced, and the continuity and stability of the reaction process are ensured.

A high-pressure flow-circulating hydrogen permeation test device and method, including: a base, and an autoclave body and a compressor being fixedly arranged on the base, wherein a side wall of the autoclave body is fixedly provided with a sample clamp, a first end of the sample clamp is clamped with a sample and extends into the interior of the autoclave body, a second end of the sample clamp is fixedly provided with a hydrogen permeation test device, an interior of the sample clamp is communicated with the hydrogen permeation test device, the hydrogen permeation test device contains an electrolyte in contact with the sample, and a gas inlet and a gas outlet of the autoclave body are both connected with the compressor through pipelines.

The invention discloses a foamed polyphenyl ether bead and a preparation method thereof. The material is prepared by compounding polyphenyl ether, a styrene polymer, a three-dimensional fiber microsphere reinforcement, a CNTs coated SiO2 core-shell nucleating agent, modified resin, a flame retardant and an antioxidant according to a specific ratio. The innovation of the invention lies in that a three-dimensional reinforcement with glass beads as a core and carbon fibers as a network and a composite foaming agent with silicon dioxide coated with carbon nanotubes are introduced to synergistically improve the cellular structure and mechanical properties. The preparation process comprises the key steps of component drying, melt blending granulation, carbon dioxide physical foaming under an autoclave aqueous dispersion system and the like. Through component design and surface modification, the foamed bead has the advantages of light weight, high strength, flame retardance and uniform foam structure, and is suitable for the fields of high-end heat insulation and bearing.

The invention discloses a ZnF2 (at) FeF3. 0.33 H2O positive electrode material as well as a preparation method and application of the ZnF2 (at) FeF3. 0.33 H2O positive electrode material. The preparation method comprises the following steps: step 1, uniformly mixing ethanol and PEG-400 to obtain a mixed solvent; 2, ferric nitrate and zinc nitrate are dissolved in a mixed solvent, then an HF aqueous solution is dropwise added into the obtained solution under stirring, after stirring, the obtained mixed solution is transferred into a stainless steel high-pressure kettle to be heated in a closed mode and cooled to the room temperature, a product is washed, centrifuged and dried in vacuum, and powder is obtained; 3, the powder is placed in a tubular furnace and subjected to heat preservation treatment in the argon atmosphere, then the powder is naturally cooled to the room temperature, a product is taken out and ground, and the ZnF2-coated FeF3. 333 H2O material is obtained. By doping ZnF2, FeF3. 0.33 H2O has higher electronic conductivity and a more stable structure, and an all-solid-state lithium battery prepared from the FeF3. 0.33 H2O has higher specific capacity and better cycling stability.

The invention relates to a preparation method of a niobium pentoxide loaded molybdenum disulfide catalyst and application of the niobium pentoxide loaded molybdenum disulfide catalyst in lignin conversion. The preparation method comprises the following steps: dissolving ammonium molybdate heptahydrate and thiourea in distilled water, adding Nb2O5, and adjusting the pH value of the mixture to 0.8-1.1 by using hydrochloric acid; transferring the solution into a stainless steel autoclave for hydrothermal reaction; centrifugally separating to obtain a black precipitate, washing with water and absolute ethyl alcohol, and drying in vacuum overnight; and placing the obtained substance in a high-temperature and high-pressure reaction kettle, screwing the reaction kettle to seal the reaction kettle, discharging gas after introducing H2, discharging air in the device, pressurizing to 3-5 MPa, and reacting to obtain the catalyst Nb2O5-MoS2. The catalyst shows excellent activity of aromatic phenol and ether compound hydrodeoxygenation for aromatic hydrocarbon preparation. The invention provides the catalyst which is low in cost, simple and convenient to prepare and excellent in performance, after ten cycle experiments, the activity of the catalyst is still stable, and the indexes of the conversion rate and the yield are reduced by less than 5%.

The invention discloses an NF-loaded high-valence metal doped-high-entropy layered double hydroxide / MOF composite material, and belongs to the technical field of high-entropy catalysts. A two-step hydrothermal method is adopted, firstly, a metal organic framework material (MOF) precursor Ni-MOF is prepared through the hydrothermal method, then a metal salt solution containing iron, zinc, cerium, cobalt and the like is prepared at the room temperature, the solution is fully stirred and subjected to ultrasonic uniformization and transferred into a high-pressure kettle, the precursor Ni-MOF is added, and the metal salt solution containing iron, zinc, cerium, cobalt and the like is obtained. And carrying out hydrothermal treatment, washing and drying to obtain the high-valence metal doped high-entropy layered double hydroxide / MOF composite material loaded on foamed nickel (NF). According to the technical scheme, due to the synergistic effect of the MOF and the high-entropy LDH, the MOF / LDHs have excellent electrochemical performance, and the introduction of the high-valence metal can regulate an electronic structure and expose rich active sites, so that the electrocatalytic activity of the MOF / LDHs is improved, and excellent HER, OER and UOR activities are obtained.