235results about How to "Promote carbonization" patented technology

The invention discloses a halogen-free flame-retardant polyolefin injection-grade wood-plastic composite and a preparation method thereof. The halogen-free flame-retardant polyolefin injection-grade wood-plastic composite comprises the following components in percentage by mass: 25 to 70 percent of polyolefin resin, 5 to 50 percent of plant fiber, 0.5 to 20 percent of compatilizer, 0 to 30 percent of flexibilizer, 0.5 to 8 percent of dispersant, 5 to 40 percent of fire retardant and synergist and 0 to 1 percent of antioxidant. Compared with the conventional wood-plastic composite, the halogen-free flame-retardant polyolefin injection-grade wood-plastic composite prepared by the invention has the characteristics of simple production flow, less fire retardant dosage, good halogen-free flame-retardant effect, wide molding mode range and the like, and is suitable for various injection-molded products such as shells of electrical appliance products, furniture, materials for automobiles, artworks, building products with complex construction and the like.

The invention relates to a three-level balance piston assembly, which comprises a balance piston, a spring wrapping clamp and a top rod base. The three-level balance piston assembly has the braking output characteristic of a 'three-step' curve, wherein three steps are named as 'three-level cadence braking'. According to the 'cadence braking' principle, compressed air can form pulses in a control pipeline and an air chamber to act on a brake pad, and an effect of acting on the brake pad by the pulses every time is equivalent to an effect of wiping the brake pad once by using a tool. Therefore, by the three-level balance piston assembly, a brake hub can be bonded with the brake pad forcefully, and the carbonization or an enamelum layer of the brake pad is also improved to a maximum degree, so that poor braking is avoided to achieve an excellent braking effect.

The invention specially relates to an industrial batch-type vanadium nitride producing method and devices. Grinded vanadium oxide powder and carbonaceous are used as raw materials, which binder is added in, to produce vanadium nitride by heating in microwave oven. The characteristic is mixing vanadium oxide, active carbon and binder according properly ratio, then briqueting and forming, putting the formed material into special microwave heating oven, unceasingly exhausting to keep vacuum, prereducing, carbononizing, nitrating and natural cooling, finally the product is taken out the oven. This product is used as additive agent of various kinds of alloy steel containing vanadium mainly.

The invention belongs to the field of solid waste building materials, and particularly relates to a building material prepared by synergistic carbonization of steel slag, desulfurized gypsum and fly ash and a method. The building material is prepared from the following raw materials of steel slag, desulfurized gypsum, fly ash, sodium carbonate, ammonium bicarbonate, fine aggregate, coarse aggregate, a retarder, a water reducing agent and a defoaming agent and according to the following process: adding water into the raw materials, conducting stirring vibrating or compression molding for 2-4 hours, then conducting demolding, putting a test piece into a reaction kettle, controlling the temperature, humidity, pressure and CO2 volume concentration of the reaction kettle, and carrying out low-temperature and high-temperature two-stage carbonization maintenance to obtain the building material. According to the invention, a carbonization excitant is used for promoting the synergistic carbonization of the steel slag, the desulfurized gypsum and the fly ash, so that the carbonization conversion rate and efficiency are improved, and an effective method is provided for resource utilization ofsolid wastes of the steel slag, the desulfurized gypsum and the fly ash and preparation of the building material by capturing industrial waste gas CO2.

The invention discloses a carbonizing system of wood materials. The carbonizing system of wood materials comprises a carbonizing device and a by-product recovery device, wherein the carbonizing device comprises a reaction vessel and a reaction chamber for putting the reaction vessel; the reaction vessel comprises a material shelf and a destructive distillation kettle for putting the material shelf; the destructive distillation kettle is composed of a destructive distillation kettle body and a destructive distillation kettle cover; an exhaust hole and a temperature measuring hole are arranged on the destructive distillation kettle cover; the reaction chamber comprises a calcining chamber with a combustion area, a carbonizing chamber, a pre-heating chamber which are sequentially arranged, a drying chamber and a cooling chamber for pre-treatment and post-treatment of wood materials respectively. The pre-heating chamber, the carbonizing chamber and/or the exhaust hole on the destructive distillation kettle cover in the calcining chamber are connected with the by-product recovery device. The system is suitable for carbonizing production of all wood materials such as tree wood, hard weed tree, bamboo material, forestry and agricultural residues (straw, shell, sawdust and on the like). The invention is scientific and rational in process, none in emission and pollution, short in production period and low in cost, thereby being suitable for popularization and application.

The invention discloses reactive phosphorus triazine flame retardant for dyeing, and a preparation method and application thereof, which belong to the technical field of flame retardants and relate to flame retardant for cotton. A molecular structure of the reactive phosphorus triazine flame retardant for dyeing is OPO3OCLO3OO3PO. The preparation method includes: mixing pentaerythritol with dioxane under protection of inert gases, dropwise adding phosphorus oxychloride at 80 DEG C for two hours, adding two to three drops of triethylamine, allowing for reaction for 4-10 hours, cooling, filtering, vacuum-drying to obtain PEPA after rinsing; and mixing cyanuric chloride with reaction solvent, adjusting the temperature to 10-20DEG C, initially dropwise adding the PEPA and acid-binding agent, allowing for continuous reaction for 6 hours, dropwise adding again the PEPA and the acid-binding agent, allowing for reaction for 6 hours, adding precipitant for precipitation after cooling, filtering, rinsing, and drying to obtain the fished product. The preparation method is simple, the prepared flame retardant has a carbon source, an acid source and a gas source integrated and is higher in thermal stability and better in carbon forming performance, and the PEPA and the triazine structure are complemented while both being given to full play to the advantages.

The invention discloses a preparation method of coconut-shell fiber-based activated carbon for a supercapacitor. The method comprises the steps that pretreated coconut shell fibers are crushed and heated up to 700 DEG C to 750 DEG C at the speed of 2 DEG C/min to 5 DEG C/min, heat preservation is conducted for 1 h to 1.5 h, and a carbonized product is obtained; the carbonized product is ground and sieved, and the carbonized product and KOH are mixed to be uniform according to the mass ratio of 1:2 to 1:5; the temperature is increased to 800 DEG C to 850 DEG C at the speed of 3 DEG C/min to 5 DEG C/min, heat preservation is conducted for 1 h to 1.5 h, and an activated product is obtained; the activated product is subjected to water washing and acid washing and water washing till the pH ranges from 6 to 7, drying is conducted, and the activated carbon is obtained. According to the preparation method of the coconut-shell fiber-based activated carbon material for the supercapacitor, the coconut shell fibers serve as the raw material, multi-time activation is not needed, the technology is simple, and the cost is low; the prepared coconut-shell fiber-based activated carbon material for the supercapacitor has a high specific surface area and a high specific capacity.

The invention discloses a high-temperature-resistant soft thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material, and belongs to the technical field of cable sheath or insulation high-molecular material. The high-temperature-resistant soft thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material is composed of 100 parts of a matrix resin, 100 to 150 parts of inorganic fire retardant, 3 to 10 parts of a flame-retardant synergistic agent, 1.0 to 2.0 parts of a silane coupling agent, 0 to 0.1 part of a peroxide, 1 to 4 parts of a lubricant, and 2.0 to 4.0 parts of an anti-oxidant; the matrix resin is composed of, by weight, 25 to 60 parts of an ethylene copolymer, 20 to 55 parts of an alkene segmented copolymer, and 10 to 25 parts of a compatilizer. The flame resistance and softness of the high-temperature-resistant soft thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material are ensured; the high-temperature-resistant soft thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material prepared via blending possesses excellent heat resistance and low temperature performance; material mechanical performance is ensured; and material hardness is reduced.

The invention discloses a high-temperature-resistant high-strength fireproof door panel. The high-temperature-resistant high-strength fireproof door panel comprises the following raw materials in parts by weight: 50-80 parts of foaming agent, 30-40 parts of perlite powder, 20-30 parts of ore filler, 10-14 parts of magnesium sulfate, 14-18 parts of magnesium oxide, 3-5 parts of expansible graphite, 4-6 parts of zinc borate, 8-12 parts of calcium hydroxide, 25-35 parts of adhesive, 10-16 parts of desulfurized gypsum, 4-6 parts of boron oxide, 15-25 parts of reinforced fibers and 10-14 parts of anti-cracking fibers. The fireproof door panel disclosed by the invention has relatively good high temperature resistance and waterproof performance, is relatively strong in heat insulation and fire smoke resistance, is relatively good in mechanical performance indexes such as pressing resistance and bending resistance, is green and environmentally friendly, is light and is high in strength, and achieves the requirements of fireproof combustion and safety; and meanwhile, raw material components are safe and reliable, are harmless on environment, and are easily available, the cost is relatively low, the process is simple and clear, operation is easy and industrial production is easily realized, a practical value is higher and the application prospect is good.

The invention discloses an application of an iron-based catalyst with a porous film structure in Fischer-Tropsch reaction. According to the invention, the iron nano-particle with spherical or sphere-like feature and porous C and N films is taken as the catalyst and is added into auxiliaries; the catalyst is applied to the Fischer-Tropsch reaction of the synthesis gas; the catalyst has higher catalytic activity and low carbon olefin selectivity; the catalyst deactivation caused by the carbon deposition and sintering of the iron nano-particles in the reaction process can be effectively restrained; the service life of the catalyst is prolonged; the application has industrial application prospect.

The invention discloses a feeding device for production of activated carbon. The feeding device comprises a crushing box body; a feeding bin is arranged at the top end of the crushing box body; the crushing box body communicates with the feeding bin; two driving motors are fixed on the outer side wall of the crushing box body through screws; output shafts of the driving motors are connected with a crushing roller; the crushing roller is rotatably connected with the internal part of the crushing box body; a second motor is fixed on the outer side wall of the crushing box body through a screw; an output shaft of the second motor is connected with a first rotating shaft arranged horizontally; the first rotating shaft is positioned in the crushing box body; a second pulverizing blade is welded on the side wall of the first rotating shaft; the second pulverizing blade is positioned below the crushing roller; and a first filter screen, a fixed frame and a first filter screen are arranged below the second pulverizing blade. The feeding device is compact in structure and small in occupied space, and can crush and screen to-be-processed wood before transportation of the activated carbon production material to facilitate subsequent processing.

The invention relates to a supported iron-based Fischer-Tropsch catalyst. The supported iron-based Fischer-Tropsch catalyst contains a spherical mesoporous carbon support, an active component iron located on the support and an optional catalyst promoter, wherein the specific surface area of the spherical mesoporous carbon support is 500-1000 m<2>/g, pore volume is 1.5-3.5 cm<3>/g, and average porediameter is 9-30 nm. According to the catalyst, spherical mesoporous carbon with high pore volume and large pore diameter is taken as the support, not only can high loading capacity of iron be realized, but also when the prepared catalyst is applied to the Fischer-Tropsch reaction, high Fischer-Tropsch reactivity and high productivity can be obtained, and particularly, CO conversion rate is remarkably increased and hydrocarbon productivity is improved. The invention further relates to preparation of the catalyst and an application of the catalyst to the Fischer-Tropsch reaction.

The invention discloses a preparation method for a carbon-loaded iron nitride compound sodium ion battery negative electrode material doped with nitrogen. The preparation method comprises the steps of firstly, dissolving a nitrogen source, a carbon source and an iron source in deionized water according to a mass ratio being 40:1:(10-40), and performing uniform stirring, wherein 6g nitrogen source is added into the deionized water per 40mL; secondly, freezing and drying the mixture to obtain a product A; thirdly, performing pyrolysis reaction on the product A to obtain a product B; and finally, washing the product B with the deionized water and ethyl alcohol, thereby obtaining the carbon-loaded iron nitride compound sodium ion battery negative electrode material doped with the nitrogen. The product is prepared from a conventional and cheap compound by a one-step pyrolysis method, the method is simple, is low in cost and is easy to operate, and mass production is expected to be achieved.

The invention belongs to the technical field of a constructional material, and relates to an excitant used for carbonizing and curing offal prepared constructional materials. The excitant comprises not less than 50 percent of excitable components by weight which are one or more than one of NaHCO3, soluble glass, plaster, Ca(HCO3)2, NaCl and Na2CO3. The excitant has the advantages that when offal prepared constructional materials are carbonized and cured, the excitant can promote carbonization in carbonization materials through the excitable components by adding the excitant of proper amount, thus increasing the carbonization ratio and reducing the discharged carbon dioxide as a greenhouse gas to great extent, preparing products for carbonizing and curing constructional materials having good performance, and reducing the production cycle with good economic benefit.

The invention relates to the technical field of furniture bamboo wood production and particularly relates to a furniture reconsolidated bamboo preparation method. The preparation method includes the steps of sectioning, bamboo chip preparing, rolling, binding, carbonization, cooling, impregnation, primary drying, secondary drying, compression and forming, so that a reconsolidated bamboo finished product can be prepared. The reconsolidated bamboo produced by the preparation method can be widely applied to various pieces of furniture, is small in surface impression diameter, less in formaldehyde release amount, large in static bending intensity, low in water content, and not easy to crack or deform, and has the advantages of excellent shock resistance, greening and environmental protection, good elasticity, and anticorrosion and mothproofing. The development and research of the reconsolidated bamboo can alleviate resource shortage and perform the advantage of bamboo wood resources, and moreover, improve the utilization value and added value of bamboo wood and can meet the needs of furniture market environmental protection.

The invention discloses a high-glowing filament scratch-resistant PC material suitable for a tablet computer shell and a preparation method thereof. The material is prepared from, by weight, 65-70% of PC, 10-14% of flame retardant, 10-18% of scratch-resistant agent, 4-6% of toughening agent, 0.4-0.6% of anti-dripping agent, 0.1-0.2% of primary antioxidant, 0.3-0.4% of auxiliary antioxidant, 0.5-0.6% of lubricating agent and 0.3-0.5% of weather-proof agent. Engineering plastic PC is used as a main material, the halogen-free flame retardant, the toughening agent, the scratch-resistant agent, anti-dripping agent, the antioxidants, the weather-proof agent and the lubricating agent are added, all the materials are subjected to melt blending through a double-screw extruder, and the high-glowing filament scratch-resistant PC material suitable for the tablet computer shell is prepared. The material has the advantages of low price, low weight, scratch resistance, good weather fastness, halogen-free flame retardation, high-glowing filaments, excellent mechanical properties, high practicability and the like. Meanwhile, the preparation method of the material is simple and easy to implement and can be widely applied to industrial production.

The invention relates to a preparation method for a durable and inflaming retarding after-finishing chinlon fabric and belongs to the field of inflaming retarding modification of fabrics. The preparation method comprises the following steps: firstly, carrying out surface hydroxymethylation modification on a pre-treated fabric and introducing active hydroxymethyl; and then carrying out a sufficient immersing and common padding finishing process on the fabric and a fire retardant, and baking and grafting the fire retardant on the fabric to realize the durable and inflaming retarding aims. The invention aims to provide the preparation method for the durable and inflaming retarding after-finishing chinlon fabric so as to overcome the defects in the prior art that halogen is included, the water washing resistance is poor and the like; the inflaming retardance of a prepared inflaming retarding nylon fabric is improved obviously and the appearance and the hand feeling of the fabric are not changed obviously; the water washing resistance is good. An experiment result shows that the oxygen index of the fabric subjected to the fire retardant treatment of the method can be improved to 46.2% from 21.6%; after the fabric is washed for 50 times, the level of 44.5% can also be kept. In a vertical combustion test, molten drops are not formed and the damage length is less than 3cm. The heat stability is obviously improved and the carbon forming performance is improved obviously. According to the preparation method, use amount of the fire retardant is less, process is simple, the cost is low and the fabric can be used in fields with high inflaming retarding requirements.

The invention relates to a cement kiln tail gas carbonized non-autoclaved aerated concrete wall material product and a preparation method thereof. The concrete wall material product comprises the following components: 30-50 parts of carbonized active cement, 1-5 parts of a reinforcing material, 5-10 parts of lime, 5-10 parts of Portland cement, 20-60 parts of concrete aggregate tailing powder, 30-50 parts of water, 0.2-2 parts of a water reducing agent, 0.1-2 parts of a foaming agent and 0.02-0.5 part of a foam stabilizer. The preparation method comprises the following steps: uniformly stirring the components or directly adding the components into slurry and uniformly stirring; molding the stirred slurry, demolding, and curing at 50-60 DEG C for 4-8 hours; and feeding the mixture into a carbonization curing kettle filled with cement kiln tail gas, curing for 8-24 hours under the conditions that the temperature is 10-50 DEG C, the relative humidity is 50-100%, the CO2 volume concentration is 15-30% and the pressure is 2-4 atmospheric pressure, and then curing for 3-14 days under the natural conditions that the temperature is 10-30 DEG C and the relative humidity is 50-90%. The non-autoclaved aerated concrete carbonized through the cement kiln tail gas absorbs a large amount of CO2, does not need autoclaved curing, is fast in strength development and low in water absorption rate, and has good heat preservation, heat insulation, sound insulation and fireproof performance.

The invention discloses a zinc phosphomolybdate flame retarding and smoke suppressing PVC sheet material which is prepared from the following components in parts by weight: 100 parts of PVC resin, 4 to 5 parts of a heat stabilizer, 5 to 20 parts of a plasticizer, 3 to 7 parts of a flame retarding and smoke suppressing agent, 0.5 to 3 parts of a phosphate coupling agent and 0.4 to 0.6 part of PE wax. According to the PVC sheet material, by the flame retarding action of phosphorus and the smoke suppressing action of molybdenum and zinc, the synergistic effect of phosphorus, molybdenum and zinc can effectively improve the flame retarding and smoke suppressing performance of the PVC sheet material.

The invention discloses a preparation method of halogen-free flame-retardant toughening polypropylene composite material, which mainly comprises the steps of: carrying out surface modification on 100 parts by weight of magnesium hydroxide by 2.0 parts by weight of surface modifier in a high-speed mixer, wherein the modification temperature is 80-120 DEG C, the time is 25-35min and the rotating speed is 1500-2000rpm; evenly mixing the modified magnesium hydroxide with 77-80 parts by weight of dry polypropylene, 17-20 parts by weight of dry polyolefin elastomer, 1.0-3.0 parts of by weight of maleic anhydride graft copolymer, 0.05 parts by weight of antioxidant and 0.1 parts of lubricating agent to obtain mixture; and then, mixing and pelleting the mixture in a double-screw extruder, drying the extruded aggregates and carrying out injection molding on the aggregates in an injection molding machine. The method is simple in technology and good in repeatability; and the prepared halogen-free flame-retardant toughening polypropylene composite material has good mechanical toughness and flame-retardant property.