1711results about How to "Simple process conditions" patented technology

There is provided a thin film transistor (TFT) capable of improving electron mobility and minimizing the occurrence of hysteresis due to traps. The TFT includes a channel layer and a gate insulating layer, wherein the channel layer is made of an oxide semiconductor. In the TFT, the gate insulating layer includes one or more first dielectric layer and a second dielectric layer, and the first dielectric layer has a dielectric constant different from that of the second dielectric layer.

The invention discloses a method for preparing a medical porous tantalum material. The method comprises the following steps of: mixing a poly ethanol aqueous solution and tantalum powder to obtain slurry, wherein the mass concentration of the poly ethanol aqueous solution is 2 to 8 percent; injecting the slurry into an organic foam by vibrating and pressurizing, wherein the vibrating frequency is 20 to 80 times / min; drying; degreasing; sintering, namely raising temperature to 1,500 to 1,800 DEG C at the speed of 10 to 20 DEG C / min under the vacuum degree of 10<-4> to 10<-3>Pa, preserving heat for 120 to 240 minutes, cooling to 200 to 300 DEG C along with a furnace, raising temperature to 1,500 to 1,800 DEG C at the speed of 10 to 20 DEG C / min again, preserving heat for 180 to 240 minutes, raising temperature to 2,000 to 2,200 DEG C at the speed of 5 to 10 DEG C / min, and preserving heat for 120 to 360 minutes; cooling; and performing thermal treatment, namely raising temperature to 800 to 900 DEG C at the speed of 10 to 20 DEG C / min under the vacuum degree of 10<-4> to 10<-3> Pa, preserving heat for 240 to 480 minutes, cooling to 400 DGE C at the speed of 2 to 5 DGE C / min, preserving heat for 120 to 300 minutes, and cooling to room temperature along with the furnace. The porous tantalum prepared by the method is very suitable to be used for the medical implant material for replacing bearing bone tissues, and biocompatibility and the mechanical property can be guaranteed simultaneously.

During the formation of sophisticated gate electrode structures, a replacement gate approach may be applied in which plasma assisted etch processes may be avoided. To this end, one of the gate electrode structures may receive an intermediate etch stop liner, which may allow the replacement of the placeholder material and the adjustment of the work function in a later manufacturing stage. The intermediate etch stop liner may not negatively affect the gate patterning sequence.

The invention discloses a polydopamine-based biofunction modification method. The method comprises the following steps of: soaking clean inorganic / metal materials in dopamine alkaline aqueous solution with a pH value of 7.2 to 10, introducing oxygen to fully oxidize the clean inorganic / metal materials to obtain a monolayer polydopamine modification layer, drying, placing the material in the air atmosphere at 50 to 200 DEG C, performing thermal oxidation to obtain a multi-layer firmly-combined high-reactivity polydopamine layer, and soaking the treated material into the amino-containing and sulfydryl-containing biofunctional molecular solution to obtain a firmly combined biofunction simulate modification layer on the surface of the materials. The polydopamine modification layer obtained bythe method has excellent anti-deformation performance, stability and reactivity, can directly react with amino or the sulfydryl in the biomolecule to immobilize the bioactive molecule on the surface by covalent bonds; moreover, the process is simple, the condition is mild, and the method is easy to implement.

The invention relates to a photo-induced reversible self-repair polyurethane film and a preparation method and a repair method thereof. The polyurethane film mainly comprises 10 to 40 parts of phenolic hydroxyl coumarin derivative, 10 to 50 parts of alkyl bromal compound, 10 to 40 parts of polyisocyanate, and 10 to 30 parts of polyether polyol or polyester polyol. The preparation method comprises the following steps of: generating phenolic hydroxyl coumarin by using the phenolic hydroxyl coumarin derivative and the alkyl bromal compound under the action of absolute potassium carbonate; and reacting the phenolic hydroxyl coumarin, the polyisocyanate and the polyether polyol or the polyester polyol to obtain polyurethane solution, and performing cross linking under the irradiation of ultraviolet with wavelength of 350 nanometers after the film is formed to obtain the polyurethane film. The damaged surface is irradiated through the ultraviolet with wavelength of 254 to 350 nanometers, so that the reduced coumarin monomers are subjected to dimer cross linking reaction again and the purpose of repairing cracks is fulfilled. Compared with the prior art, the polyurethane film has the characteristics of good film forming property and high transparency; and the repair process is simple and has low cost.

The method includes following steps: mixing predecessors of lithium, iron or vanadium salts, phosphate according to ratio; pretreatment is carried out at 200 - 500 deg.C; finally, sintering reaction is carried out at 400 - 1200 deg.C so as to obtain phosphate anode material of lithium ion cells. The said lithium salt is lithium halides. The method also carried out carbon cladding for the said anode material. The cladding materials are carbohydrate, acetylene black or graphite. The cladding materials can be added at time of mixing predecessors or at time of sintering reaction. Or, the cladding materials are added after sintering reaction, then sintering is carried out again. Advantages are: simple technique, avoiding generation of Li3PO4, and high capacity.

The invention mainly relates to a preparation method of a carbon nitride supported monoatomic metal catalysis material, concretely relates to a preparation method of a layered graphite phase carbon nitride supported monatomic metal M catalysis material (M is one or two or more of Ag, Pd, Rh and Pt), and belongs to the field of catalysis materials. The carbon nitride supported monoatomic metal catalysis material is prepared through one-step pyrolysis of a carbon and hydrogen precursor and a metal precursor in a carbon and hydrogen precursor and metal precursor complexing manner through using the inhibition of the aggregation of metal atoms by the interaction of a metal center and a ligand, so the stability and the dispersibility of the monatomic metal catalysis material are improved. The metal in the material prepared through the method is supported on the surface of layered graphite phase carbon nitride in a zero-valence monoatomic dispersion form, and the kind and composition of supported metal atoms can be controlled as needed.

A method for predicting the structure variation and properties of band steel in hot rolling procedure features that its system is composed of the preprocessing module for reading the technological parameters needed by hot rolling from database, the heating module, rolling module, cooling phase-change module and mechanical performance module for simulating the hot rolling procedure and predicting the final structure performance, and the post-precessing module for displaying the final result.

The present invention relates to a black matrix photosensitive resin composition having high light-shielding and improved adhesion properties and a black matrix for a liquid crystal display including the same. The black matrix photosensitive resin composition comprises an alkali-soluble binder resin, a multi-functional monomer having an ethylenic unsaturated double bond, a photopolymerization initiator, an adhesion accelerator, a solvent, and a colorant comprising black pigments. A Cardo type binder is mixed in an amount of 10 to 90 wt % and an acryl type binder is mixed in an amount of 10 to 90 wt % based on a total weight of the alkali-soluble binder resin including the Cardo type binder and the acryl type binder.

The invention relates to the technical field of the food additive and the microcapsule equipment capable of controlling the release of bioactive substances, in particular to a preparation method of menthol microcapsules. The preparation method uses menthol, wall material, emulsifier, crosslinking agent, pH regulator and water as the raw materials, wherein menthol is used as the core material, chitosan is used as the wall material, monoglyceride and Tween-40 are used as the compound emulsifier, 10% acetic acid is used as the pH regulator. The preparation method comprises the following steps: emusifying the solution under high pressure, adding modified starch to crosslink, finally adopting the spray drying technology to prepare the powdery menthol microcapsule product. The invention aims to provide a menthol microcapsule preparation method with safe and easy technology and low cost, increase the stability and heat resistance of menthol, control the release process and expand the application range.

A process for preparing the clean diesel oil by hydromodifying, isomerizing and lowering pour point features that the fractional oil raw material and H2 pass through a catalyst bed to obtain clean high-quality diesel and the naphtha product with low contents of sulfur and nitrogen and high content of arylhydrocarbon. Said catalyst bed contains hydrocatalyst bed containing beta zeolite (0.5-20 wt.%).

The invention discloses a method for preparing alloy powder, more particularly relates to a method for continuously preparing high-quality tin alloy welding powder. The invention is characterized in that an atomizing chamber is vacuumed, then inert protection gas is filled into the atomizing chamber; the tin alloy material is melted in a melting furnace, and then is controlled to be atomized in the atomizing chamber; after being cooled, the tin alloy material is solidified into tin alloy powder grain; by the sieving of the equipment, the needed product is obtained; products not meeting the requirements is melted and prepared again. The invention has the advantage that the quality of tin alloy powder is greatly improved by optimizing producing condition; the surface chemical property is improved; the productive labor cost can be greatly lowered; high priority is given to environmental protection in the process of realizing a circular production process. Products prepared by the method can be widely applied to encapsulation and circuit board welding material in electronic industry.

The utility model relates to a synthesis of a titania-alumina mixed oxide material and a catalyst carrier of a supported deep hydrodesulfurization catalyst by taking the compound as the carrier. 1)take the tetrabutyl titanate and the aluminum chloride or the pseudo-boehmite as the raw material, prepare the mesoporous mixed oxide material of TiO2-Al2O3 with the sol-gel method, and use the material as the carrier of the diesel oil deep hydrodesulfurization catalyst; 2)use the dipping method by modifying the active metal variety and the dipping method to get highly dispersed supported mesoporous hydrodesulfurization catalyst of TiO2-Al2O3 compound material after baking; in the diesel oil hydrogenation deep desulfurization reaction, the desulfurization capability is good, and the desulfurization rate can reach 99 percent; if the reaction can be operated under a relative relaxative condition, the sulfur in the diesel oil can be desorbed from 1300ppm to below 15 ppm, or from the 430ppm to below 1ppm; the sulfur content in the product can meet the standard of Europe IV.

The invention relates to a preparation method of polypyrrole / graphene composite material, comprising the steps of: reducing graphite oxide by hydrazine hydrate, washing the reduction product by deionized water, and obtaining graphene colloid which is evenly dispersed; mixing the graphene colloid and pyrrole monomer according to a certain proportion, carrying out ultrasonic dispersion, and then stirring under the condition of ice bath; slowly dripping FeCl3 hydrochloric acid solution into reactant, and leading the reactant to react under the condition of ice bath after dripping; and finally, washing and drying after the reaction, and obtaining the polypyrrole / graphene composite material powder. The invention has simple technique condition and low cost, and the polypyrrole in the prepared composite material is evenly covered by graphene. Furthermore, the polypyrrole / graphene composite material can be taken as super-capacitor, and has high conductivity and good electrochemical performance.

The invention relates to a stirring type cereal sour milk and a method of preparing the same. The cereal sour milk is made through lactobacillus and probiotics ferment by using raw materials with the following weight components: raw fresh milk of 700-875 parts, cereal powder 1-30 parts; additive agent for dairy food of 5-44 parts; lactobacillus strain / functionality probiotics strain of 0.2-0.8 parts; corrective of 48-82 parts; stabilizing thickening agent of 3-10 parts; homogeneous pourable dense quasi-fluid which is the external appearance showing the color of added cereal powder with suspended corresponding cereal powder; the tissue is fine, smooth and uniform and a few whey is allowed to be precipitated; organoleptic attribute, nutritive index, health indicator and content of lactobacillus series of the cereal sour milk are all better than that in the GB2746 cultured milk quality index. The present invention is characterized in that the cereal powder that is formed by pulverizing and swelling processes reserves the nutrient of cereal to the utmost extent and improves the hot water leaching rate and absorption rate of its nutrient components; the technique is more compact and the operation is easy; the production efficiency is high and the consumption human populations of the products are widened; the cereal sour milk is easy to digested and absorbed, and the taste is better.

Microfluidic circuit elements, such as a microvalve, micropump or microvent, formed of a microcavity divided by a diaphragm web into a first subcavity bounded by a first internal wall and a second subcavity bounded by a second internal wall, where the diaphragm web is characterized as a thin film having a first state contacting the first internal wall and a second state contacting the second internal wall and exhibiting essentially no elasticity in moving between the first state and the second state, the thin film web having been stretched beyond its yield point before or during use are provided. The disclosed elements enable faster and more efficient cycling of the diaphragm in the microcavity and increases the diaphragm surface area. In a preferred embodiment, the microfluidic circuit element is pneumatically driven and controls the motion of fluids in a microassay device.

The invention discloses a process for preparing anatase type TiO2 sol which comprises preparing alcoholic solution of titanium compounds from titanium compounds and alcohols by the mol ratio of 1:1.42-12, agitating and dropping the alcoholic solution of titanium compounds into the water solution of acid with pH=1.0-4.0 for hydrolytic decomposition, the mol ratio of titanium compounds and water in the aqueous solution of acids being 1:76-151, inversing flow for 6-48 hours at 65-85 deg. C, evaporating the obtained sol at 50-55 deg. C to remove the alcohols, thus obtaining octahedrite type titanium dioxide collosol.

The invention discloses a modified ABS antistatic material and a preparation method thereof. The antistatic material is formed by melting the mixture in an injection machine after mixing PEEA, maleic anhydride grafted ABS resin (or styrene maleic anhydride copolymer SMA), ABS resin, zlnc oxide whisker, coupler and other additives according to a given proportion. The antistatic ABS material has the advantages of low surface resistance, permanent static resistance, light color and good mechanics performance; and moreover, the antistatic ABS material has appropriate cost, no toxicity and pollution, simple formation processing technology, easy realization and promising application prospect.

The invention discloses a preparation method of chitosan and particularly provides a preparation method of chitosan with high deacetylated degree and high molecular weight. The preparation method comprise the following steps of: firstly, preparing raw materials, removing calcium salt through acid treatment, removing protein through alkali treatment, and removing astacin to obtain chitin, and deacetylating the chitin to obtain the chitosan. Compared with the prior art, the preparation method has the advantages that the time on removing calcium and the astacin is shortened, and the molecular weight of the chitosan is improved. By using an alkali intermittent method for deacetylation by steps, the deacetylated degree of the prepared chitosan reaches 91-93 percent, and the viscometric average molecular weight of the prepared chitosan is 8.9*105-94*105.

The invention relates to a high-temperature-resistant wave-transparent silicon nitride fiber-reinforced composite material and a preparation method thereof. The method comprises the following steps: by using a two-dimensional fabric laying or three-dimensional four-direction knitted continuous silicon nitride fiber preform as a reinforcing body, carrying out interface coating preparation on the reinforcing body fiber surface with a polyboron azane precursor by half-vitrification; compounding the precursor mainly composed of polyboron azane with an impregnation liquid to prepare a base; and carrying out vacuum pressure impregnation, desolventization, pressure crosslinking curing and cracking densification to obtain the final silicon nitride fiber-reinforced composite material. The preparation method greatly enhances the impregnation efficiency, enhances the material density by 18-40%, and finally obtains the novel wave-transparent material system with excellent high temperature resistance. The strength retention rate of the material at 1200 DEG C and 1500 DEG C is 70-94%. Compared with the silicon nitride ceramic material, the novel wave-transparent material has obviously higher breaking strain.

A high efficiency light-emitting diode and a method for manufacturing the same are described. The high efficiency light-emitting diode comprises: a permanent substrate; a first contact metal layer and a second contact metal layer respectively deposed on two opposite surfaces of the permanent substrate; a bonding layer deposed on the second contact metal layer; a diffusion barrier layer deposed on the bonding layer, wherein the permanent substrate, the bonding layer and the diffusion barrier layer are electrically conductive; a reflective metal layer deposed on the diffusion barrier layer; a transparent conductive oxide layer deposed on the reflective metal layer; an illuminant epitaxial structure deposed on the transparent conductive oxide layer, wherein the illuminant epitaxial structure includes a first surface and a second surface opposite to the first surface; and a second conductivity type compound electrode pad deposed on the second surface of the illuminant epitaxial structure.

The invention relates to an atomized fall type coal paste preprocessor. A sliding plate is fixedly connected to the two sides of a lower tank body of a fall tank, a vertical shaft of a fogging disc is connected with an output shaft of an electric motor, an upper tank body of the fall tank is provided with a central feeding pipe and an overflow launder; wherein the overflow launder is internally provided with baffle plates; a slide plate comprises an upper slide plate and a lower slide plate, a ridged bar is fixedly connected on the slide plate; the vertical shaft of the fogging disc is externally sheathed with a sleeve, the lower part of the sleeve is provided with a chemical feed pipe which is communicated with a chemical feed hopper, the lower end of the chemical feed pipe is placed above the front surface of the fogging disk; a coupler is a flexible coupler. In the invention, the front surface of the fogging disk is the working surface; floating agent automatically flows to the working surface under the action of static pressure, thus avoiding blockage caused by impurities; with the fall tank, repeated fall of coal paste is realized, so that sufficient time is provided to contact and fully mix with the floating agent having gong through atomization and dispersion, thus facilitating formation of enough and stable oil film on the surface of the fogging disk; the slide plate with ridged bars is set with different contact pretreatment time for medium-thickness and fine particles of the coal paste, thus creating fine technological conditions for coal paste pretreatment.

The invention relates to the field of blood products, in particular to a process method for preparing three kinds of blood products from cryoprecitation, and aims to provide a complete separation and purification process for respectively and sequentially preparing the three kinds of blood products, i.e. a coagulation factor VIII, fibrinogen and fibronectin, from the cryoprecitation. The process method is implemented by the following technical scheme that the process method comprises the preparation steps of cryoprecitation dissolution, gel adsorption, precipitation of the fibrinogen and the fibronectin, two-step ion exchange chromatography and glycin / sodium chloride precipitation and inactivation of virus. The process method has the beneficial effects that the three kinds of useful blood products, i.e. the coagulation factor VIII, the fibrinogen and the fibronectin, can be separated and extracted from the cryoprecitation sequentially; and the utilization rate of blood plasma is greatly improved.

The invention discloses a preparation method of the 9, 10-dihydro-9-oxa-10-phosphahenanthrene-10-oxide and the derivatives DDP, DDP-EG and DOPO-BQ. The invention has three steps to synthesize the DOPO: (1) preparation of CDOP, the O-phenylphenol (OPP) reacts with the Phosphorus trichloride (PCl3) with ZnCl2 as the catalyst. (2) purification of CDOP, vacuum distillation is carried out. (3) DOPO with high purity and yield is gained through the hydrolysis and crystallization. The preparation materials comprises the O-phenylphenol, the Phosphorus trichloride, the toluene, the alcohol, the deionized water, the itaconic acid, the ethylene glycol, the p-benzoquinone and the acetone. The invention simplifies the process conditions, improves the product purity with good production stability and repeatability. The purity of the product reaches over 99.0 per cent, the content of the chloride is below 50ppm, the OPP is about 0.01 per cent, the color is about 10 (10 per cent solution of acetone), the zinc-ion is less than 10ppm. The preparation method of the derivatives DDP, DDP-EG, DOPO-BQ is simple, good in stability and high in yield.

The invention relates to porous tantalum serving as a medical metal implanted material and a preparation method thereof. The porous tantalum has a pore three-dimensional communicating distribution foam structure, wherein a solution which is prepared from an organic adhesive and a dispersant and tantalum powder are adopted to prepare a tantalum powder slurry; the tantalum powder slurry is poured into an organic foam body and soaked until the tantalum powder slurry is filled in the pores of the organic foam body, drying is carried out so as to remove the dispersant in the organic foam body which is poured with the tantalum powder slurry, and ungreased treatment is carried out in the presence of inert gas so as to remove the organic adhesive and the organic foam body, and vacuum sintering is carried out so as to prepare the porous sintered body; on a foam framework which is formed by accumulated sintered pure tantalum powder, and a sintering neck structure exists among tantalum powder particles; and the tantalum powder is annealed in vacuum and subjected to conventional post-treatment. The porous tantalum has the advantages of high porosity, uniform and communicated porous distribution, uniform sintered microstructure particles, remarkable sintering neck, ensured excellent chemical performance and especially excellent ductibility.

An information processing apparatus includes an operation detecting unit which detects a predetermined operation performed on a first icon which has been dragged to a second icon, the first icon moving with movement of a pointing device, and includes a condition update unit which updates a processing condition in information processing based on the detection by the operation detecting unit. The condition update unit updates the processing condition based on the detection by the operation detecting unit and accordingly the user can update the processing condition with a simple manipulation.

The invention relates to a process for rare-earth smelting resource reclamation and cyclic production. The process has the main characteristic of comprehensively and systematically solving the problems of environmental protection and industrial promotion of the whole rare-earth industrial chain by adopting innovative integrated technical means. The process mainly comprises administration and comprehensive utilization of waste gas, waste water and waste slag, revolution of a rare-earth smelting process, and reclamation and repeated utilization of various important resources such as sulfur, fluorine, ammonium, thorium, phosphorus, calcium and the like so as to achieve smokeless and harmless treatment of the waste gas, full utilization of the resources and zero discharge of industrial waste water and fulfill the final goal of cyclic production. The process radically solves the maximum environment-friendly bottleneck problem in a sustainable development process of the Baotou rare-earth industry from resource advantage to industrial advantage, in particular the historical key environment-friendly technical problem, reduces energy consumption of a large amount of resources and pollutiondischarge, greatly reduces the production cost, upgrades the rare-earth industry, and extends the larger industrial chain at the same time.

The invention mainly relates to a preparation method for a carbon nitride supported monodisperse oxidation state metal atom catalytic material, in particular to a preparation method of a layered graphite-phase carbon nitride supported monodisperse oxidation state metal M atom composite (M is one or two or more of Zn, V, Fe, Co, Ni, Sn, Pb, Cu, In and Mn), and belongs to the field of catalytic materials. The method adopts a way of complexation of a metal precursor and a carbon nitrogen precursor to inhibit agglomeration of metal atoms, and employs one-step pyrolysis of a metal carbon nitrogen adduct to prepare the carbon nitride supported monodisperse oxidation state metal atom catalytic material, wherein the metal M exists in the form of partial or complete oxidation state single atoms, and the varieties and composition of the supported metal atoms can be regulated as needed. The method of the invention has the characteristics of simplicity and easy control, and can be used for mass preparation of the carbon nitride supported monodisperse oxidation state metal atom catalytic material.

The present invention relates to a technological process for purifying hydrogen gas by using hydrogen-rich gas source. Said process includes the following several procedures: a), raw material gas compression; b), decarbonization and dehydration; c), membrane separation; d), catalytic reaction to make deoxidation; and e), pressure swing adsorption.