31results about How to "High preparation temperature" patented technology

The invention provides a manufacturing method of a flexible display device. In the manufacturing method, a water and oxygen barrier layer is directly arranged on a flexible polymer substrate, and then arranged on an organic light-emitting diode in a bonding manner, so that the film-forming compactness of the inorganic barrier layer can be improved, and accordingly the water vapor and oxygen permeation preventing capability of the water and oxygen barrier layer is improved, degradation and deterioration of various materials in the organic light-emitting diode are prevented and the service life of the flexible display device is prolonged; the manufacturing process of the organic light-emitting diode and the manufacturing process of the water and oxygen barrier layer are not required to be sequentially carried out, the water and oxygen barrier layers on a first flexible polymer substrate and a second flexible polymer substrate can be manufactured synchronously or manufactured on the same flexible polymer substrate, and a cutting process is performed as required, so that a production process can be simplified and purposes of improving the production efficiency and reducing the cost are achieved. The invention further provides the flexible display device manufactured by the manufacturing method. The flexible display device is relatively long in service life.

The invention discloses a silicon nitride fiber reinforced silicon dioxide ceramic based composite and a preparation method and application of the silicon nitride fiber reinforced silicon dioxide ceramic based composite. The silicon nitride fiber reinforced silicon dioxide ceramic based composite comprises an Si3N4 fiber prefabricate and an SiO2 ceramic base, and the SiO2 ceramic base is evenly put in holes of the Si3N4 fiber prefabricate. The preparation method comprises the following steps: (1) removing a binder from the Si3N4 fiber prefabricate in the vacuum or inertia atmosphere; (2) preparing an Si3N4/SiO2 composite intermediate through the processes of impregnating in vacuum, drying a gel and sintering; and (3) decarbonizing thermally in the aerobic environment. The composite has the advantages of high temperature resistance, ablation resistance, scouring resistance, excellent oxidation resistance, strong carrying capacity and excellent dielectric property, and has an excellent application value in the field of high temperature wave transmitting material; and the preparation method is simple in process and relatively low in cost and is suitable for industrial production.

The invention relates to a method for preparing a nano compound diamond-like carbon coating, which is realized in a way that: glow discharge is produced by using a medium-frequency magnetic-control sputtering target; argon and excessive hydrocarbon gases are introduced, so that the metal on the target surface reacts with the hydrocarbon gases to produce metallic carbides; when the argon ions bombard the target surface, the target surface sputters the metallic carbides; strong plasma produced by the glow discharge of the target surface ionize the hydrocarbon gases, so that the hydrocarbon gases produce highly-ionized carbon ions; and the carbides sputtered from the target surface and the highly-ionized carbon ions produced from the hydrocarbon gases form a high-hardness carbide-doped nano compound diamond-like carbon coating on a workpiece surface. The coating prepared by the invention has the characteristics of high hardness, strong adhesive force, high growth speed, high production efficiency, low depositing temperature, low production cost, simple equipment structure and the like; and diamond-like carbon coatings with different thicknesses can be prepared on hard alloy, high-speed steel and various other workpieces.

The invention discloses a method for preparing an organic perovskite methyl amino lead iodide film by a two-step method. The method comprises the following specific steps: a film preparation technology (pulse laser deposition, magnetron sputtering and the like) is used for depositing on a substrate with lead iodide as a target to prepare a lead iodide film; the thickness of the film is controlled through the laser pulse number or the sputtering power and time; then, the grown lead iodide film and methyl amine iodide powder are put in a temperature control furnace for heating at constant temperature of 150-280 DEG C by 5 minutes to 5 hours; and a methyl amine iodide atmosphere and the lead iodide film on the substrate are reacted to generate the methyl amino lead iodide film. The method is simple in preparation process, and can realize the preparation of large-area film; and film grains grown by using the method substantially penetrate through a film growing direction, so that the improvement of organic perovskite solar cell efficiency and the industrial production and application are facilitated.

The invention discloses a method for preparing an organic perovskite methyl amino lead iodide film based on a lead oxide film.The method specifically comprises the steps that with lead oxide as a target material, the lead oxide film is prepared on a base in a sedimentation mode through the film preparation technology, the film thickness is controlled through the number of laser pulses, laser energy or sputtering power and time, the lead oxide film growing well and methyl ammonium iodide powder are put into a temperature controlling furnace and heated at the constant temperature of 160-260 DEG C for 5 minutes to 3 hours, and the formed methyl ammonium iodide gas and the lead oxide film on the base react successively to produce the methyl amino lead iodide film.The preparing technology is simple, and large films can be prepared; by means of high-temperature crystal, a uniform and compact entirety is formed by the produced methyl amino lead iodide film, crystalline grains penetrate through the whole film, crystal boundaries, cracks and defects are reduced, and therefore the methyl amino lead iodide film helps efficiency improvement and actual application and production of organic perovskite solar cells.

The invention belongs to the technical field of combustion synthesis, and particularly relates to a method for preparing molybdenum copper alloy by combustion synthesis in a high gravity field. The method of the invention adopts Al-CuO as a reaction system, and adopts Cu, Mo, and B2O3 as diluents. High temperature thermite reaction between various raw materials is induced in a high gravity field (500-5000g); rapid separation, densification, and cooling of the products of ceramic melt and metal melt of the thermite reaction in the high gravity field is realized to obtain a ceramic solid and a metal solid; and the pure copper layer at one end of the metal solid is cut to obtain the molybdenum copper alloy. The method of the invention has the characteristics of simple process, short preparation period, low cost, and the like.

The invention discloses a high efficiency silicon-based heterojunction double-sided battery and its preparation method. The high efficiency silicon-based heterojunction double-sided battery comprises an N type silicon chip. On the front side of the N type silicon chip, a first intrinsic amorphous silicon layer, a second intrinsic amorphous silicon layer, a P type doped amorphous silicon layer, a transparent conductive film layer and a metal gate wire electrode are arranged in succession. The electron band gap of the second intrinsic amorphous silicon layer is greater than that of the first intrinsic amorphous silicon layer. On the back side of the N type silicon chip, a third intrinsic amorphous silicon layer, an N type doped amorphous silicon layer, a transparent conductive film layer and a metal gate wire electrode are arranged in succession. According to the invention, the first intrinsic amorphous silicon layer and the second intrinsic amorphous silicon layer are prepared in different chambers respectively, and the preparation temperature of the first intrinsic amorphous silicon layer is lower than that of the second intrinsic amorphous silicon layer so that the second intrinsic amorphous silicon layer has a relatively wider electron band gap which corresponds to the band gap of a crystalline silicon and therefore, can be used as a barrier layer to block the diffusion of electrons into the emitter using the difference in band width; therefore, the combination of electrons with empty cavities can be reduced, improving the electrical performance of the battery.

This invention relates to a type of carbon material iridium smear layer used for antioxygen. The feature is it has two iridium smear layer: one permeates under carbon material; one deposit on the surface. The depth of infiltrated layer is 10-50um, surface layer is 50-300um. Iridium and carbon material has combined, and the ingredient forms gradient transition from infiltrated layer to surface layer and has no catastrophe of ingredient and mechanical property. The preparation of this smear layer includes follow steps: use iridium board and carbon material as cathode, vacuum chamber shell as joint using anode in the vacuum glow discharge installation; draw vacuum to ultimate vacuum, post in argon gas, light aura, and then alloy elementary particle of source electrode iridium target is sputtered and deposit on the surface of carbon material; the last step is high temperature diffusion.

The invention discloses a graphitized carbon-based adsorption material and a preparation method thereof. The preparation method comprises the following steps: placing phenolic resin under the protection of inert gas, continuously heating to 1200-1600 DEG C at a certain rate, continuously heating at constant temperature, carrying out high-temperature anaerobic carbonization, cooling to room temperature, crushing, and sieving to obtain a black granular product. The method adopts the thermoplastic phenol-formaldehyde resin as the unique raw material, does not need any additive, is lower in preparation temperature, avoids the defects of high preparation temperature, serious energy consumption, high metal content and the like in the traditional method, is simple in preparation process, and is suitable for industrial large-scale preparation; the prepared graphitized carbon-based adsorption material can replace a commercially available graphitized carbon black material recommended in the determination isotope dilution high-resolution gas chromatography-high-resolution mass spectrometry (HJ 77.2-2008) of ambient air and waste gas-dioxins, the recovery rate range of PCDD/Fs extraction internal standard is 80%-107%, and the requirements are met.

The invention relates to a cold mixing high polymer modified bitumen concrete and a method for producing the same. The concrete comprises 5.0 to 15 weight portions of cold state high polymer bitumen, 55 to 70 weight portions of stone, 1.0 to 5 portions of stone dust, 1.0 to 4 portions of cement, 4.0 to 10 portions of cold mixing swelling agent and 5.0 to 27 portions of pure water which are prepared into the cold mixing high polymer modified bitumen concrete through normal cold mixing. The concrete has the advantages of simple production, novel and unique formulation, excellent performance and energy conservation, is the cold mixing high polymer modified bitumen concrete for a rapid, economic, energy-saving and environment-friendly high grade highway with excellent performance, and can be widely applied to the bitumen concrete pavements paved for various grades of highways.

The invention discloses an ecological high-durability OGFC-5 mixture. The mixture includes the following components in percentages by mass: 4.5-4.9% of high-performance modified asphalt, and 95.5-95.1% of mineral aggregate, wherein the high-performance modified asphalt includes the following components: 2.69-2.7% of light vegetable oil, 7.185-7.193% of SBS, 0.269-0.27% of an anti-stripping agent,and the balance of 70# petroleum asphalt; and the nominal maximum particle size of the mineral aggregate is 4.75 mm, and the gradation range is as follows: the mass percentage of mineral aggregate passing through a 4.75 mm sieve pore is 90-100%, the mass percentage of mineral aggregate passing through a 2.36 mm sieve pore is 10-20%, and the mass percentage of mineral aggregate passing through a 0.075 mm sieve pore is 3-7%. The high-durability OGFC-5 asphalt mixture provided by the invention has the characteristics of high strength, good durability, and significant noise-reducing and water-discharging effects, and can be used for paving of road drainage pavements; and in addition, the high-durability OGFC-5 asphalt mixture can eliminate the phenomenon of aggregate scattering caused by combined action of shearing and torsion at intersections and a small turning radius area.

A method of preparing a porous and permeable adsorption material for a vaporizer utilizes a mixing step; a kneading step; a molding step; a drying step; a first holding step; a calcining step; a second holding step; a forming step; a third holding step; and a producing step. The raw materials include particulates of silicon carbide of 50-85 weight percent, a binder of 1-30 weight percent, a pore forming agent of 5-35 weight percent, and a surfactant of 0.15-7.5 weight percent. Once these raw material components are mixed, then adding water of 5 weight percent to 35 weight percent while kneading to form a wetted mixture of raw materials. The remaining steps describe a molding and heating regimen.