403 results about "Charring" patented technology

The invention provides a preparation method for preparing porous carbon based on an aerogel method, the porous carbon and application of the porous carbon, and belongs to the technical field of porous carbon material preparation. The preparation method comprises the following steps: mixing polyhydroxy phenol, aromatic aldehyde, acrylamide, graphene oxide and lithium salt according to a mass ratio of 100: (50-200): (5-30): (1-5): (1-5), carrying out hydrothermal reaction at 100-200 DEG C for 1-6 hours, and freeze-drying at-40 DEG C to obtain a hydrogel precursor; and carbonizing the precursor in organic heteroatom gas at 500-800 DEG C, mixing the intermediate with alkali according to the ratio of 100: (100-500), activating at 900-1100 DEG C, pickling and drying to obtain the porous carbon. The conductivity of the product is improved by means of graphene, lithium salt and heteroatoms, and the aerogel method obtains large aperture, has the characteristics of low impedance, high first efficiency and small charge-discharge expansion, and can be efficiently applied to silicon-carbon materials.

The invention belongs to the technical field of high polymer materials, and particularly discloses a lignin-based charring agent containing silicon and nitrogen flame-retardant elements and an imine structure for flame-retardant polylactic acid and a preparation method of the lignin-based charring agent. The flame-retardant polylactic acid is prepared from the following components in parts by weight: 90 to 97 parts of polylactic acid, 1 to 3.33 parts of lignin-based charring agent and 2 to 6.67 parts of ammonium polyphosphate. The bio-based charring agent disclosed by the invention contains silicon and nitrogen flame-retardant elements and an imine structure, has remarkable charring and flame-retardant effects, is high in charring capacity, and can endow the PLA with relatively good flame-retardant property by compounding with ammonium polyphosphate and adding 1% of the lignin-based charring agent; the lignin and vanillin which are used as main raw materials for synthesizing the charring agent are bio-based sources and are easy to obtain, the production process is simple, industrial production is easy, the preparation process is non-toxic and environment-friendly, the dependence of charring agent synthesis on petroleum-based raw materials can be effectively relieved, and the sustainable development trend of materials is met.

The invention relates to a double-circulation symmetrical airflow type straw flash carbonization device which comprises a feeding mechanism, a conveying mechanism, a rotary carbonization furnace, a carbonization separator, a carbon outlet separator, a pyrolysis gas channel, a combustion furnace and a combustion separator, the rotary carbonization furnace is of a double-layer jacket type structure, and the design of an outer-layer high-temperature heating inner wall and an inner-layer tangential rotational flow inner cavity is adopted; the raw materials form a thin layer under the action of centrifugal force to finish flash carbonization. According to the invention, the combustion furnace and the rotary carbonization furnace which are symmetrically arranged, and the carbonization separator and the combustion separator are adopted, so that cyclic re-carbonization and graded collection of carbonized products, split-flow utilization of pyrolysis gas and stepped recovery of high-temperature flue gas are realized; the problems that a traditional device is low in continuous degree, high in energy consumption and insufficient in product purity are solved, and the straw carbonization efficiency and the resource utilization rate are remarkably improved.

The invention discloses a production process of activated carbon with efficient adsorption performance, and belongs to the technical field of porous carbon material preparation. The preparation method comprises the following steps: by taking biomass as a raw material, compounding the biomass with a eutectic salt system consisting of zinc chloride and potassium chloride, a nitrogen source precursor and a sacrificial cation source to obtain a homogeneous reaction precursor; the key point is that the precursor is subjected to programmed variable-pressure pyrolysis treatment under the condition that the temperature is far lower than the traditional activation temperature. According to the process, deep infiltration of molten salt is achieved through initial pressurization operation, and then reaction gas is guided to escape orderly through a later programmed pressure reduction process. Through collaborative innovation of the composition and the process, multiple steps of carbonization, activation, pore forming, in-situ functionalization and the like are integrated in a single low-temperature reaction unit, and the technical problems that a traditional method is high in energy consumption and long in flow, and the physical structure and surface chemistry of a material are difficult to synchronously regulate and control are solved.

The invention belongs to the technical field of high polymer materials, and discloses a bio-based spiral macromolecular flame retardant as well as a preparation method and application thereof. The novel bio-based spiral macromolecular flame retardant PDVPA is successfully prepared on the basis of common industrial raw materials in combination with bio-based renewable vanillin, and the novel bio-based spiral macromolecular flame retardant PDVPA is applied to preparation of a flame-retardant TPEE composite material by adopting a melt blending process. The phosphorus element in the PDVPA molecular structure is used as a main flame-retardant functional group, and can promote the charring of the spiral structure of the PDVPA molecular structure; meanwhile, an imine bond can be subjected to a trimerization reaction under a high-temperature condition to form a cross-linked network structure, so that the molten drop phenomenon during TPEE combustion is effectively inhibited. The invention provides a new way for improving the safety performance of the high polymer material and reducing the dependence on fossil resources.

The invention relates to the technical field of modified carbon graphite materials, and particularly discloses an antioxidant modified carbon graphite material and a preparation method thereof, the antioxidant modified carbon graphite material comprises the following raw materials by weight: 30-34 parts of medium temperature pitch, 4-6 parts of modified silica sol and 10-12 parts of artificial graphite powder; from two aspects, firstly, the aluminum dihydrogen phosphate and the boric acid aqueous solution are added, the aluminum dihydrogen phosphate can promote the asphalt to form a denser and firmer glassy carbon structure during carbonization, and phosphorus pentoxide generated by decomposition of the aluminum dihydrogen phosphate and boron oxide generated by dehydration of boric acid can generate a glass phase with an anti-oxidation effect; secondly, core-shell particles are added, a shell layer of the core-shell structure is an aluminum hydroxide structure generated by hydrolyzing aluminum nitrate nonahydrate, and an inner core is epoxidized nano silicon carbide; through the synergistic effect of the two, the mechanical property and the oxidation resistance of the carbon-graphite material are improved.

The invention relates to the technical field of composite materials, in particular to a silicone rubber composition and a preparation method thereof. The silicone rubber composition is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 25-35 parts of white carbon black, 2.8-3.0 parts of hydroxyl silicone oil, 1.1-1.2 parts of hydrogen-containing silicone oil, 0.8-1 part of a cross-linking agent, 20-30 parts of an additive A, 6-8 parts of an additive B and 1.5 parts of a silane coupling agent KH-550. The additive in the additive A is carbonized and forms an intumescent flame-retardant system in the reaction under the combined action of mannitol and bamboo fiber, and generates a flame-retardant gas during decomposition, so that the fire resistance and flame retardance of the silicone rubber composition can be effectively improved, and meanwhile, the additive B is capable of effectively improving the flame retardance of the silicone rubber composition based on the loading of blumea oil and chitosan quaternary ammonium salt. The blumea oil endows the material with an anti-aging function through the good anti-oxidation characteristic, so that the thermal stability and durability of the silicone rubber composition are effectively improved under the combined action of the additives.

The invention belongs to the technical field of high-value utilization of waste plastic resources and preparation of carbon materials, and relates to a system for preparing a carbon material with a controllable specific surface area through continuous carbonization-activation of waste plastics. The system comprises a crushing and drying function unit, a spiral continuous transportation function unit, a carbonization / activation pyrolysis function unit, a KOH precise mixing function unit and a washing and metering function unit, wherein a KOH moisture absorption path is blocked in a nitrogen atmosphere, and directional evolution of a carbon hole structure is realized through segmented temperature control; the material uniform drying and mixing mechanism cooperates with the stirring device to guarantee the matching precision of KOH and pyrolytic carbon; centrifugal separation, a gas storage tank and a compressor are coupled to complete purification and recovery of pyrolysis gas, the pickling and washing module realizes dealkalization of products, and the metering and collecting unit supports a closed loop of a production line. Compared with the prior art, the system disclosed by the invention breaks through the stability defect of an intermittent process, can be used for preparing the porous carbon material with the specific surface area of 600-2000m / g, and provides core equipment support for industrial landing of high-value recycling of waste plastics.

The invention belongs to the technical field of drinking water purification materials, and discloses a drinking water difunctional filtering carbon material which is capable of efficiently removing heavy metals, high in mineral substance retention rate and high in safety, and a preparation method and application of the drinking water difunctional filtering carbon material. The preparation method comprises the following steps: (1) mixing a primary carbonized material, a binder, a pore forming agent and a transition metal salt solution, kneading and forming, and drying to obtain a green body; (2) sequentially carrying out secondary carbonization treatment and thermal activation treatment on the green body, cooling, washing with water until the conductivity of a washing solution is constant, and drying to obtain a porous carrier; (3) immersing the porous carrier in the oxidation modification solution, carrying out solid-liquid separation, washing with water, and drying to obtain a porous oxidation carrier; and (4) immersing the hot porous oxidation carrier in the alkaline polyamine modified solution, adjusting the pH value of the mixture to be close to neutral when the temperature is reduced to room temperature, carrying out solid-liquid separation, and carrying out heat treatment to obtain the drinking water dual-function filtering carbon material, wherein the temperature of the porous oxidation carrier is higher than that of the alkaline polyamine modified solution.

The invention relates to the technical field of coatings, discloses a multifunctional fireproof and waterproof polysiloxane coating and a preparation method thereof, and aims at solving the problems that the hydrophobic function of an existing fireproof and waterproof polysiloxane coating is irreversibly lost after a fire disaster, and the fireproof and waterproof synergistic performance is remarkably attenuated in a medium-high-temperature environment. Hydroxyl-terminated methyl phenyl siloxane is used as matrix resin, and is matched with a flame-retardant system composed of melamine modified ammonium polyphosphate, pentaerythritol and amino modified nano-montmorillonite, a hydrophobic repair system composed of polysiloxane capsule wall fluorosilane microcapsules, an interface modifier compounded by an epoxy group and an amino silane coupling agent, and a special auxiliary agent. A three-dimensional covalent network is constructed to anchor all the components, efficient charring and temperature response type hydrophobic repair are achieved, the finished product is prepared through microcapsule preparation, modified flame retardant compounding and coating main body blending, and the finished product has excellent fireproof and waterproof performance, a renewable hydrophobic function after a fire disaster and stable performance at medium and high temperatures and is suitable for industrial long-term protection scenes.

The invention relates to the technical field of carbon material preparation, in particular to phenolic resin-based porous carbon and a preparation method thereof. The core of the preparation method of the phenolic resin-based porous carbon is that the mass ratio of phenolic aldehyde to phenolic aldehyde is optimized (1: (1-1.2)) to ensure sufficient crosslinking, and an amine catalyst is selected to reduce metal residues; meanwhile, terephthalaldehyde is introduced as a cross-linking accelerant, so that the bridging density and thermal stability of a resin network are effectively enhanced, and structural collapse is inhibited in subsequent carbonization; a sectional type carbonization process is further adopted, and the carbon skeleton is preserved by controlling the heating rate. According to the method, the carbonization yield is finally and successfully improved to 58% or above (improved by 15%-20% compared with that of a traditional method), the ash content is remarkably reduced (smaller than or equal to 0.2%), and an excellent material with a small mesoporous structure (the average pore diameter ranges from 2 nm to 10 nm) and a high specific surface area (larger than or equal to 1500 m < 2 > / g) is obtained.

The utility model discloses an automatic flame-spraying high-temperature plastic-removing burning cleaning furnace which is used for carrying out high-temperature plastic-removing on a spraying hook hung on a hanging chain line, the running path of the hanging chain line passes through the burning cleaning furnace, and the burning cleaning furnace comprises a flame-spraying end part and a flame-blocking end part which are arranged on the two opposite sides of the running path of the hanging chain line. The flame spraying end component is provided with flame spraying torches distributed along the running path of the suspension chain line, the flame blocking end component can be opened and closed relative to the flame spraying end component when being operated, the flame blocking end component and the flame spraying end component are closed relative to each other when the burning cleaning furnace is used for burning cleaning, and the flame spraying torches spray flames to the flame blocking end component when the burning cleaning furnace is used for burning cleaning. And the coating sprayed on the surface of the hook is carbonized by the high temperature generated by the flame at the butt joint part between the flame spraying end part and the flame blocking end part. Due to the fact that online treatment is adopted for high-temperature burning cleaning, upper hanging tools, lower hanging tools and transfer are not needed, labor intensity is reduced, and efficiency is improved.

The invention discloses straw carbon-based carbon particles and a manufacturing device and method, and relates to the technical field of agricultural ecological environmental protection equipment.The method comprises the following steps that S1, straw is subjected to component separation treatment, and a liquid component, a carbonized precursor rich in lignin and a fiber base material containing cellulose are obtained; s2, performing carbonization treatment on the carbonized precursor to obtain biochar; dissociating the fiber base material to obtain a fiber inner core material; s3, the liquid component serves as an adhesive, the fiber inner core material serves as a particle inner core, biochar serves as a coating outer layer, and carbon particles of a core-shell structure are prepared through a forming technology. Straw is subjected to component separation before carbonization, directional utilization of all components of straw is achieved, compared with an existing mode that straw is directly carbonized and returned to the field, the carbon particles are more environmentally friendly, and the cost is reduced. The carbon particles prepared by the method are beneficial to subsequent fermentation and field application, can reduce the risk of secondary pollution such as dust raising, are beneficial to regulation and control of the soil carbon release process, and improve the comprehensive utilization efficiency of straws.

The application discloses a mesoporous carbon preparation process with recyclable silicon source and mesoporous carbon with small pore size and large specific surface area. The mesoporous carbon preparation process comprises the following steps: preparing a silicon template: reacting a fluosilicic acid solution with calcium carbonate, and separating calcium fluoride precipitate and silica sol; the pH of the silica sol is 2-5; the concentration of silicon dioxide in the silica sol is 1-8 wt%; preparing a precursor: dissolving a carbon source and an organic acid in the silica sol, drying, grinding, and carbonizing in an inert atmosphere to obtain a C / Si precursor; the organic acid comprises at least one of oxalic acid, tannic acid, acetic acid and citric acid; removing the silicon template and recycling the silicon source: treating the C / Si precursor with hydrofluoric acid, and performing solid-liquid separation to obtain mesoporous carbon and a fluosilicic acid solution, wherein the fluosilicic acid solution is used for preparing the silicon template. The specific surface area of the mesoporous carbon is greater than 800 m 2 / g, and the pore size is less than 6 nm.

The present application relates to the field of microcapsules, and discloses a flame-retardant temperature-regulating phase change microcapsule and application thereof in polystyrene foam plastic. The polystyrene foam plastic contains carbon nanotube / magnesium-aluminum layered double hydroxide modified silica coated paraffin phase change microcapsules, the carbon nanotube / magnesium-aluminum layered double hydroxide modified silica wall material has high thermal conductivity, and the magnesium-aluminum layered double hydroxide generates water vapor when decomposed under heat, which dilutes combustible gas, and the decomposition products, silica and carbon nanotubes synergistically promote carbonization to form a dense carbon layer, achieving the effect of flame retardation. When the microcapsules are used as fillers of polystyrene foam plastic, the polystyrene foam plastic has good flame retardation and energy storage temperature regulation effects.

This invention relates to the field of wastewater treatment technology, specifically to a highly efficient adsorbent wastewater treatment agent and its preparation method, comprising the following raw materials in parts by weight: 50-70 parts activated carbon powder, 8-12 parts deionized water, 5-10 parts ammonium bicarbonate, 1-3 parts sodium dodecyl sulfate, 15-25 parts additive A, and 8-15 parts additive B. In this invention, the stably loaded cerium ions can effectively exert their specific coordination and capture effect on heavy metals. The chitosan introduced into the carrier can enhance the electrostatic and chelate adsorption of anionic pollutants and organic molecules. Simultaneously, the well-developed pores formed after shellac carbonization combine with the network structure of chitosan, further increasing the specific surface area of ​​the material and the adsorption capacity of organic pollutants, achieving highly efficient and stable adsorption of heavy metals, dyes, and organic pollutants.

The utility model discloses a system for synchronously preparing biochar with different qualities. The system comprises a starting device, a combustion chamber, a first carbonization device, a second carbonization device and an alkali metal element recovery device, combustible gas generated in biomass carbonization by the starting device, the first carbonization device and the second carbonization device is input into the combustion chamber for combustion, and energy consumption can be reduced. A first flue gas input port of the first carbonization device is hermetically connected with a first flue gas output port of the combustion chamber; a second flue gas output port of the first carbonization device is hermetically connected with a second flue gas input port of the second carbonization device; a third flue gas output port of the second carbonization device is hermetically connected with a third flue gas input port of the alkali metal element recovery device; the flue gas utilization efficiency can be improved, and energy consumption is reduced. The product output port of the second carbonization device is further connected with the second raw material input port of the alkali metal element recovery device, and the alkali metal element recovery device is added, so that waste of alkali metal elements is avoided.

The utility model discloses a vertical carbonization furnace, and relates to the field of activated carbon activation furnaces, the inside of a carbonization section is built by a plurality of connecting blocks, concave bricks and convex bricks, specifically, the middle part of each connecting block is provided with an inclined plane support, and the left and right sides of each connecting block are respectively provided with the convex bricks and the concave bricks; the connecting blocks, the concave brick blocks and the convex brick blocks are built in a step-by-step staggered manner from bottom to top, materials in a carbonization section stay or decelerate on the step-by-step inclined surface supports in the falling process, and meanwhile, the inclined surface supports which are staggered in the step-by-step manner form an air passage. A special structural design is adopted in a traditional furnace body, carbonization is more sufficient, a large amount of high-temperature pyrolysis gas generated in the carbonization process can be output through a channel in the furnace, and waste heat and the pyrolysis gas can be fully utilized; the carbonization furnace cavity adopts a special geometric structure, so that the accumulation of the raw materials can be effectively avoided, and the hot flue gas and the carbonized raw materials are fully carbonized.

The invention discloses a straw carbonization device based on waste heat recycling, and relates to the technical field of straw carbonization devices, the straw carbonization device comprises a separation assembly, the separation assembly comprises a sealed cabin, and springs are arranged at the positions, close to four corners, of the inner top surface of the sealed cabin. According to the straw carbonization device based on waste heat recovery and utilization, when straw is divided into blocks with uniform sizes and enters the oscillation bin, the blocky straw in the oscillation bin is punched through a plurality of flow dividing pipes, so that the blocky straw is dispersed into smaller blocks, in addition, when gas punches the oscillation bin, four springs drive the oscillation bin to oscillate back and forth, so that the straw carbonization effect is improved. In the vibration process, crushed straw falls into a conveying hopper along round holes in an inclined separation plate and finally enters a conveying pipe, the crushed straw is crushed into uniform blocks in the environment with the low oxygen content, on the premise that air is isolated, the sealed conveying advantage of extrusion forming is reserved, and the conveying efficiency is improved. And the heat conduction bottleneck of the compact material blank is avoided through low-oxygen crushing.

The present application provides a kind of porous carbon and carbon nanotube combined preparation system and method, including activation fluidized bed, carbonization fluidized bed and carbon nanotube preparation fluidized bed;Activation fluidized bed is filled with energy carbon carrier, after oxygen and activating gas are imported, energy carbon carrier and oxygen occur combustion heat release, make activation fluidized bed temperature rise, first tail gas formed is imported into carbonization fluidized bed filled with carbon particle precursor, carbon particle precursor is carbonized under the action of high temperature carried by first tail gas, and generates carbide particle, and the second tail gas containing C1-C 30 ;Carbide particle is transported to activation fluidized bed, by controlling the gas flow rate of first gas inlet, so that carbide particle is always in the upper part of activation fluidized bed, and makes carbide particle activate in activating gas, and forms porous carbon particle;Second tail gas enters carbon nanotube preparation fluidized bed, and under the action of nanometer metal catalyst, C1-C 30 In it, is converted into carbon nanotube to realize low-cost co-production of porous carbon and carbon nanotube.

The invention discloses efficient processing drying and carbonizing integrated equipment, and belongs to the technical field of drying and carbonizing, the efficient processing drying and carbonizing integrated equipment comprises a support frame, the top of the support frame is fixedly connected with a drying mechanism, the surface of the support frame is fixedly connected with an adjusting mechanism, and the surface of the adjusting mechanism is fixedly connected with a carbonizing mechanism; the surface of the adjusting mechanism is fixedly connected with a screening mechanism matched with the drying mechanism, raw materials enter the drying mechanism to be dried, then the dried materials are screened through the screening mechanism, powder is screened out, the screened materials enter the carbonizing mechanism to be carbonized, and the carbonized materials enter the carbonizing mechanism to be carbonized. Meanwhile, the distance between the carbonization mechanism and the screening mechanism can be adjusted through the adjusting mechanism. On the basis that the materials are dried and carbonized, the device can also adapt to the materials of different specifications, and the overall processing efficiency and the product quality can be improved.

The application discloses a kind of self-sintering oxidation-resistant carbon graphite sealing materials and preparation method thereof, its method includes: activated agent, catalyst and hexagonal boron nitride are mixed and reacted, after washing, dry modified hexagonal boron nitride is obtained;Subsequently, it is put into mixing kettle, again and molten pitch impregnation kneading, then it is broken and sieved to obtain pitch-coated hexagonal boron nitride powder;Again, it is pressed into shape, and physical pressure semi-carbonization treatment is carried out under inert atmosphere, again it is broken and sieved to obtain green coke coated hexagonal boron nitride powder;Crosslinking agent is dissolved in solvent, then add mesocarbon microbead, heat reaction under inert atmosphere, obtain crosslinking modified mesocarbon microbead;Green coke coated hexagonal boron nitride powder and crosslinking modified mesocarbon microbead are mixed uniformly according to the mass ratio of 5-30:70-95, to obtain pressed powder;The pressed powder is pressed into block, then cold isostatic pressing forming is carried out to obtain green body block;Green body block is calcined, then graphitization treatment is carried out under inert atmosphere, and carbon graphite sealing material is obtained.

The invention relates to a preparation method of a bamboo secondary particle coating and hard carbon sealing pore structure. According to the method, bamboo powder is used as a raw material, and the functional carbon material with a closed pore structure and a surface coating layer is prepared through the steps of staged carbonization, mechanical grinding, composite coating, aftertreatment and the like. Firstly, bamboo powder is subjected to low-temperature carbonization and high-temperature carbonization treatment, the heating and cooling rate is controlled under the nitrogen atmosphere, and carbonized bamboo powder is obtained; then mixing and grinding the mixture with a solid electrolyte and PVDF, and performing low-temperature carbonization again to form secondary particles; then, gelatin and calcium gluconate monohydrate are used as coating agents and stirred together in a sodium dodecyl benzene sulfonate solution, and surface coating is achieved; finally, freeze-drying, carbonizing at low temperature, pickling with hydrochloric acid, washing with water to be neutral, and drying to obtain a final product. The method is controllable in process and good in repeatability, and has good mechanical strength, chemical stability and function adjustability.

The utility model belongs to the technical field of coal gangue raw material carbon separation, and discloses a coal gangue raw material carbon separation device which comprises a base, a smashing box is installed on one side of the top end of the base through a support, a machining groove is formed in the top end of the smashing box in a penetrating mode, a pair of smashing rollers is rotatably installed in the machining groove, and a cover plate assembly is arranged at the top end of the smashing box. A driving assembly is arranged on one side of the smashing box, and a first vibration screening machine is installed at the position, below the smashing box, of the top end of the base. According to the device, coal gangue raw materials are crushed through the crushing box and the crushing rollers, the crushed coal gangue raw materials are screened through the first vibration screening machine, the screened coal gangue raw materials are conveyed into the second vibration screening machine through the conveyor to be subjected to secondary screening, and meanwhile the coal gangue raw materials can be prevented from splashing out of the crushing box through the cover plate during crushing; therefore, the crushing efficiency of the coal gangue raw material carbon separation device is improved, and the labor cost is reduced.

The invention discloses a damp-heat-resistant flame-retardant polyether-ether-ketone modified material and a preparation method thereof, and relates to the technical field of high polymer material modification. The modified material is prepared from the following raw materials in parts by mass: 70 to 90 parts of polyether-ether-ketone, 5 to 15 parts of polyphenylene sulfide, 10 to 25 parts of self-crosslinking modified phosphorus-nitrogen flame retardant, 0.5 to 2.0 parts of hydrolysis-resistant stabilizer, 0.1 to 0.8 part of antioxidant and 0.2 to 1.0 part of lubricating dispersant, the self-crosslinking modified phosphorus-nitrogen flame retardant is prepared by introducing hydroxyl-containing polyhedral oligomeric silsesquioxane (POSS) and phosphonitrilic chloride trimer into the self-crosslinking modified phosphorus-nitrogen flame retardant and carrying out graft condensation on the hydroxyl-containing POSS and phosphonitrilic chloride trimer. According to the material, through cross-linking hybrid modification and interface synergistic regulation and control, hydrolysis and acid production of the flame retardant are inhibited by utilizing the large steric hindrance hydrophobic effect of POSS, matrix degradation is blocked, the compactness of a flame-retardant layer is enhanced by virtue of the ceramic-carbonization synergistic effect, and the problems that a traditional flame retardant is easy to decompose and is not resistant to damp and heat can be effectively solved; the mechanical strength retention rate and the flame-retardant reliability of the material after high-temperature and high-humidity aging are remarkably improved.

The invention discloses an integrated treatment system for carbon micro powder particles. The integrated treatment system comprises a mesh belt type continuous drying machine, a baking machine and a pre-carbonization furnace, carrying out gradient drying treatment on the continuously input carbon micro-powder particles by the mesh belt type continuous dryer to obtain dry particles K1; the dry particles K1 continuously output by the mesh belt type continuous dryer are directly conveyed into a baking machine, and the baking machine performs gradient baking treatment on the continuously input dry particles K1 to obtain carbon micro powder particles K2; directly conveying the continuously output carbon micro-powder particles K2 into a pre-carbonization furnace, and performing pre-carbonization treatment on the continuously input carbon micro-powder particles K2 by the pre-carbonization furnace to obtain carbon micro-powder pre-carbonized particles K3. According to the invention, integrated continuous treatment of three-section processes of drying treatment, baking treatment and pre-carbonization treatment of carbon micro-powder particles is realized, and mechanical oxygen isolation is adopted for discharging of the pre-carbonization furnace, so that waste of heat and materials is effectively reduced, and labor cost and time cost generated by material transfer are reduced.

The present application relates to the technical field of composite floor manufacturing, and particularly relates to a carbonized wood multi-insulation layer composite floor and a manufacturing method thereof, comprising: carbonizing wood blanks; obtaining a grid-shaped base material; sequentially laying a base fiberboard, a first grid-shaped base material, a stress absorption layer plate, a second grid-shaped base material and a carbonized wood surface layer in a sequence from bottom to top, and performing cold pressing to obtain a composite floor blank, wherein the cold pressing pressure is adjusted according to the interlayer contact resistance of the first grid-shaped base material, and the relative laying direction of the first grid-shaped base material and the second grid-shaped base material is determined according to the average moisture content and the moisture content distribution variance; preheating and pressing the composite floor blank; determining a step-down value of the hot pressing pressure of a stage-type step-down hot pressing mode according to a thickness change rate; and hot pressing the composite floor blank to obtain a finished product composite floor. The present application realizes the improvement of the performance stability of the composite floor.

The application discloses a precious metal embedded porous carbon coated honeycomb ceramic monolithic catalyst and application thereof. The liquid phenolic resin polymer containing chloroplatinic acid is uniformly coated on the surface of the cordierite honeycomb ceramic through impregnation treatment; in an oxygen-nitrogen mixed atmosphere, one-stage solidification makes the liquid phenolic resin polymer containing chloroplatinic acid coated on the surface of the cordierite honeycomb ceramic completely solidified; two-stage calcination makes oxygen react with chloroplatinic acid, so that the chloroplatinic acid is decomposed, and the negative influence of chloride ions on the catalyst is eliminated; in an inert gas argon atmosphere, carbonization makes the phenolic resin polymer carbonize under high-temperature conditions to form porous carbon, and meanwhile, platinum ions are reduced to platinum single elements and embedded by the porous carbon, so that the precious metal (platinum, iridium) embedded porous carbon coated honeycomb ceramic monolithic catalyst is finally prepared.

The invention discloses a preparation method of a nitrogen-sulfur co-doped lignin-based hierarchical porous carbon material and supercapacitor energy storage application, and belongs to the technical field of preparation methods and application of porous carbon materials, and the preparation method comprises the following steps: (1) dropwise adding an ammonium sulfate solution into sulfate pulping black liquor, and adjusting the pH value, after standing reaction, drying to obtain ammonium sulfate precipitated lignin; (2) uniformly mixing lignin with potassium tartrate and potassium nitrate, drying and grinding to obtain a mixture; and (3) pyrolyzing the mixture in an inert atmosphere, washing the carbonized product with dilute acid, filtering, and drying to obtain the porous carbon material. Potassium tartrate promotes formation of graded pores through the mild pore-forming effect, and the foaming effect of potassium nitrate can inhibit formation of coal tar and excessive carbon skeleton etching in the pyrolysis process. The supercapacitor electrode material prepared from the porous carbon has high specific capacitance, excellent cycling stability and high energy density.

The present application relates to a kind of preparation method of nitrogen-oxygen co-doped nanoporous carbon material and its application, with the following steps: resorcinol, polyaspartic acid potassium, polyvinyl alcohol, 4-dimethylaminopyridine are dissolved in distilled water stirring 10~60 minutes, then add sepiolite powder, ultrasonic oscillation at room temperature 30~60 minutes, finally add formaldehyde aqueous solution, seal, continue ultrasonic oscillation 1~3 hours, obtain gel product;The gel product obtained is dried to obtain intermediate;The intermediate obtained is carbonized to obtain black product;The black product obtained is pickled and washed with water, dried to obtain nitrogen-oxygen co-doped nanoporous carbon material.The porous carbon material obtained by the present application has large specific surface area and strong adsorption capacity, and the preparation method has high reaction yield.