617 results about "Molecular film" patented technology

The invention relates to a high molecule and inorganic nano-particle hybrid film and a preparation method thereof, and particularly relates to a high molecule and inorganic nano-particle hybrid film for doping inorganic particles into a high molecule material by using a sol-gel method and a preparation method thereof. In the high molecule and inorganic nano-particle hybrid film, inorganic nano-particles are uniformly dispersed in the high molecular polymer film and account for 30-50 percent by weight of the total weight of the polymer film. The method comprises the following steps of: (1) preparing an inorganic oxide particular solution; (2) preparing a polymer solution; (3) preparing a high molecule-inorganic nano-particle mixed solution by using a low-temperature sol-gel method; and (4) injecting and drying the mixed solution to form a film. Compared with the prior art, the preparation method provided by the invention is easy and practical, can be used for conveniently and accurately controlling the thickness and the uniformity of the high molecular film, and is easy for production in scale. The inorganic nano-particle doped high molecular film can be widely applied to automobiles, construction and building materials and other fields.

The invention discloses an IGZO (indium gallium zinc oxide) thin film transistor and a preparing method thereof, wherein the IGZO thin film transistor comprises a substrate, a grid combined on the substrate surface and a silicide grid insulation layer covering the outer surfaces of the substrate and the grid, wherein the surface of the silicide grid insulation layer is subjected to O2/N2O plasma bombardment processing; the surface of the silicide grid insulation layer subjected to the O2/N2O plasma bombardment processing is also combined with a self-assembly single-molecule film layer in a laminating mode, so the film defect state of the silicide grid insulation layer can be reduced after the O2/N2O plasma bombardment, the charge trap action is inhibited, the roughness of the surface of the insulation layer is reduced by the self-assembly single-molecule film layer, the interface property between the insulation layer and an active layer is well improved, charges are prevented from being captured by an interface defect, the carrier mobility of a device is reduced, the threshold voltage is reduced, leak current is reduced and the performance of the device is more stable.

This invention provides a process for accumulating different organic molecular films on oxidized III-V-group compound semiconductor substrates in order to produce a stable, high-quality organic monomolecular film that is three-dimensionally regularly arranged, as well as a process for producing a fine pattern of such organic films. This organic film is formed by immersing a III-V group compound semiconductor substrates in a vessel containing a solution containing phosphonic acid dissolved into a solvent in order to form a self-assembled film, and placing the substrate into a different solution to adsorb metal ions to the surface of the film, or immersing the substrate in a bromide or an acid or alkali solution to denature functional groups, then immersing it in a solution containing organic molecules that are selectively chemically adsorbed to the modified functional groups. These steps are repeated to form a stable, high-quality multilayer film that is three-dimensionally regularly arranged, while controlling film thickness with an accuracy on the scale of thickness of a molecular layer.In addition, the present invention realizes the formation of a fine composite three-dimensional organic self-assembled film of the order of nanometer, characterized in that the process comprises using a cleavage method or a very-high-vacuum vessel to form on a substrate with different types of III-V-group semiconductor materials mixed thereon by means of the heteroepitaxial process such as the MBE or MOCVD process, a self-assembled film of the molecules having thiol groups in a non-oxidized area and then forming on an oxidized surface a self-assembled film of molecules having phosphoric acid group, trichlorosilyl groups or alkoxylyl groups.

The invention discloses a hydrogel self-assembled microstructure template-based multifunctional superhydrophobic coating. Silicate ester is added into a hydrogel monomer (precursor) solution, after hydrogel monomer gelation and silicate ester hydrolysis, a silica microstructure film is formed, the silica microstructure film is modified by a self-assembled monomolecular film having hydrophobicity so that a super-hydrophobic coating is formed, the hydrogel monomer comprises at least one of aniline or its derivatives, and pyrrole or its derivatives, the silicate ester comprises at least one of methyl silicate, ethyl silicate, propyl silicate, butyl silicate and tetrachlorosilicane, and the self-assembled monomolecular film comprises at least one of silanization reagents such as alkylchlorosilane, alkylsiloxane, fluoroalkylchlorosilane and fluoroalkylsiloxane.

The invention discloses a molecular film fruit-vegetable fresh-keeping agent prepared from edible material which includes one or more out of proteins, saccharides or polysaccharides, fats, natural polymers, synthetic polymers, small molecule substances, etc. The fresh-keeping agent is prepared by preparing the edible material into an organic solution, an aqueous solution or an emulsion while adding food additive; stirring, heating or pressurizing the solution so as to accelerate the dissolution; and cooling to room temperature for use. The molecular film fruit-vegetable fresh-keeping agent belongs to the natural fresh-keeping agent category, has low cost, high efficiency and environment-friendliness, can reduce the fruit weight loss, avoid the low-temperature damage and keep the fruit surfaces smooth and clean, and is suitable for fruits such as oranges, apples, bananas, pears, jujubes, etc.

The invention prepares composite water evaporation inhibitor through adopting the built technology. The technical characteristics are that long-chain fatty alcohol and short-chain alcohol are remixed into molecular film base material, stable solution is prepared through dissolving appropriate spreading solvent which is chosen in ambient temperature, thereby obtaining the water evaporation inhibitor. The water evaporation inhibitor which is obtained through the process can automatically spread out on the water level to form an insoluble molecular film, which has favorable temperature interference resistance ability, matter interference resistance and self-restoring ability, and the efficiency of inhibiting water evaporation is reduced as time prolongs, thereby having excellent stability. The preparation process of the invention is simple, and can be prepared in-situ. The water evaporation inhibitor which is prepared has extensive application prospect in water resource protection field, has great significance for solving the problem of water scarcity in arid area and reducing water resource loss, and can bring out enormous economic benefits and social benefits.

A high-molecular film covering on the surface of medical internal marmem supporter for insertion therapy is composed of internal, external and miniporous films. The said supporter has better elasticity, biological compatibility and medicine carrying power. It is used for esophagus, trachea, blood vessel, biliary trace and urethra.

The present invention relates to a high-molecular film bag artificial vitreous body capable of regulating intraocular pressure and its making method. It includes bag, drainage-tube and ejection handle. Said bag is suitable to form and volume of human eye vitreous body cavity, the drainage-tube is connected on the upper portion of the bag, said drainage-tube is equipped with drainage valve, the bag and the drainage tube are hid in the ejection handle, and the bag is held by head of the ejection handle.

The invention provides a new air sac type gastric retention controlled-release medicine release system, including (1) an air sac which is formed by wrapping high molecular film-forming materials and hydrophobic materials outside a hollow sac; (2) a medicine containing layer which is composed of medicines and pharmaceutically acceptable excipient; the medicine containing layer covers the outside of the air sac and includes a medicine controlled release layer or a medicine slow release layer. If necessary, a quick release layer, which is composed of medicines and excipient and covers the outside of the controlled release layer or the slow release layer, can also be included. The air sac can also be internally filled with a certain amount of gas generant which includes carbonate and pharmaceutically acceptable organic acid. The average density of the whole formulation can be generally controlled below 0.6/cm<3> and is obviously superior to the present gastro-floating formulation on sale, and the floating time in the stomach is rather longer than a common gastro-floating formulation.

The invention belongs to the technical field of oil and gas fieldchemistry and discloses a decompression and augmented injection agent for a water injection well of a low-permeability reservoir. The decompression and augmented injection agent comprises the following components by weight percent: 30%-35% of bisoctyl dimethyl ammonium chloride, 3%-7% of a fluorocarbon surfactant, 3%-5% of a non-ionic surface active agent, 5%-10% of ethylene diamine tetra (methylene phosphonic acid) sodium, 2%-5% of dimethyl ketoxime and 38-57% of water. The invention also provides a preparation method for the decompression and augmented injection agent. The decompression and augmented injection agent takes water solution as a transmitting medium and forms an ultrathin molecular film by depositing on the rock surface; the decompression and augmented injection agent has a function of changing the core wettability and clay anti-swelling property; the decompression and augmented injection agent also has multiple effects of corrosion inhibition, scale inhibition, sterilization, and the like, can effectively prevent the influence on the formation porosity caused by injected water corrosion products, scaling, bacteria, and the like, and can greatly promote the water injection effect of the water injection well of the low permeability reservoir. Being as a novel decompression and augmented injection agent with excellent decompression and augmented injection effects, the decompression and augmented injection agent has wide market prospect.

The invention relates to a thermo-sensitive type ultrafiltration membrane and a preparation method thereof. The thermo-sensitive type ultrafiltration membrane comprises main components of 85-90 wt% of a polyvinylidene fluoride membrane material and 10-15 wt% of a thermo-sensitive type amphiphilic water-based polymer. The preparation method is as below: first synthesizing the thermo-sensitive type amphiphilic water-based polymer; then mixing well the high-molecular film material and the polymer; mixing the mixture of the high-molecular film material and the polymer, a pore forming agent and a solvent for a film casting liquid to prepare a film casting liquid; and preparing the film casting liquid into a flat sheet membrane, a spiral-wound membrane and a hollow-fiber membrane. The ultrafiltration membrane provided by the invention has large flux, lasting hydrophilicity and anti-pollution performance, and can response to changes of environmental temperature.

A film covered rubber plug is composed of a rubber plug and a covering high-molecular film chosen from polyethene, polypropene, polyester and polystyrene. Said film has a fusion point close to that of rubber and is directly and physically adhered onto surface of rubber plug without adhesive.

The invention relates to a field recovery and purification method for associated gas at a well head, which is used for the field purification and recovery of the associated gas at the well head. The invention solves the problem of difficult recovery of the associated gas at well heads of remote and dispersed oil field, makes full use of energy and reduces environmental pollution. The technical proposal comprises the following steps: inputting the associated gas into a separator to remove tiny solid particles and heavy hydrocarbon emulsion in the associated gas and reclaim condensed oil; then inputting the gas into a gas preheater for heating and reaching the required purification temperature, inputting the gas into a compressor for reaching certain pressure, and inputting the gas into a devulcanizer for removing hydrogen sulfide gas; inputting the devulcanized associated gas into a decarburization tank for removing carbon dioxide; sending the gas into a purification assembly and a deep drain sump for carrying out deep dehydration and carbon dioxide removal through a molecular film; and finally sending the gas into a cold box for decompression and cooling, and preparing the associated gas into liquefied gas which is inputted into a storage tank. The method applicable to oil fields can realize the aims of energy conservation and emission reduction; the method facilitates the skid migration with simple structure and convenient use; and the recovery operation is free of field limitations.

The invention discloses a preparation method of cordyceps militaris polypeptide. The preparation method comprises the steps of: based on fresh cordyceps militaris as a raw material, preparing cordyceps militaris homogenate liquid by crushing, grinding, freeze thawing and homogenizing; carrying out enzymolysis of compound enzymes consisting of plasmase and pectinase, the enzymolysis of papain, the enzymolysis of alkaline proteinase and the enzymolysis of flavourzyme on the cordyceps militaris homogenate liquid; and finally carrying out enzyme inactivation, filtering by utilizing a molecular film filter and spray-drying on the cordyceps militaris homogenate liquid, so as to obtain cordyceps militaris polypeptide powder. The preparation method can be carried out at normal temperatures and pressures and has the advantages of simple operation method, energy conservation and environmental friendliness, low cost, high extraction efficiency of the cordyceps militaris polypeptide and high polypeptide contents of products.

The invention relates to an electricity bistable film device that is based on molecularity and wide electricity rewritable capability. The device is a samdwich structure composed of bottom electrode,top electrode and organic molecular film. The thin film device can be manufactured by using vacuum thermal steam-plasting. The device provides features that erasting and writing times reach to 10-1000; contrast of two states in more than 1000 times; one writing time is less than 100 nanoseconds; one erasting time is less than 1 microsecond. The invented bistable thin film can be used to develop electricity erasing and writing storing device with super high density, molecularity logic gate and over-voltage protector.

The invention relates to an electret polarizing method, comprising the steps of: (1) covering a layer of polar high molecular film on at least one surface of electret material, where the dielectric constant of the polar high molecular film is greater than that of the electret material; (2) raising temperature to melt the polar high molecular film and applying external electric field to the electret material for pole injection; (3) lowering temperature, and removing the electric field and obtaining the electret. And the invention uses the interface polarization between polar high molecular film and electret material, and injects carriers into traps of a certain height on the surface of the injected pole material so as to form stable electret; the method is simple and convenient to operate.

The invention provides a water-based inorganic zinc shop primer, which comprises a base-material and a curing agent, wherein the base-material comprises zinc, a filling material, pigment, rare earth oxide, a heterocyclic organic compound, a surfactant, water, an anti-settling agent and an antifoaming agent; the curing agent comprises an inorganic high-molecular film forming substrate, anacrylic acid monomer, styrene, methyl acrylate, ethyl acrylate, a dispersant, water, an antifoaming agent and a surfactant. The shop primer is used for ship or large-scale steel structure construction, has excellent anticorrosion performance, and is suitable for high pressure airless spraying to satisfy the production requirements of shop primer streamline, and satisfy the requirements of welding, cutting and the like. and can be used as a priming paint for temporary protection in the process for constructing large-scale heavy steel structures in ship construction factory or large-scale steel structure factory, the protection duration is 3-12 months.

This invention provides an electrochemically active organic thin film capable of repeating reversible oxidation/reduction a number of times. Further, the invention provides a novel approach to so-called “molecular nanoelectronics” utilizing organic molecules as operating units, with the use of such organic thin film. Such electrochemically active organic thin film comprises a substrate, an organic molecular film comprising organic molecules having terminal amino groups chemically fixed on the surface of the substrate, and metal atoms or metal ions coordinately hound to the amino groups.

The invention provides a flexible film solar cell packaging method and a solar cell. The solar cell comprises a backboard (5), a solar cell sheet (3) and a transparent water-vapor-resistant high-molecular film (1). One side of the solar cell sheet (3) is laminated on the backboard (5) through a first hot melt adhesive (4), and the other side of the solar cell sheet (3) is laminated on the transparent water-vapor-resistant high-molecular film (1) through a second hot melt adhesive (2). Plastic hot melt adhesives package the solar cell therein and form a complex under a certain temperature and pressure so as to protect the solar cell; a packaged solar cell is flexible, and is not easy to break and damage in installation and use processes, thereby widening the application field of a film solar module.

An object of the present invention is to increase adhesiveness between thin films, particularly a high molecular film formed on an insulating surface, and the present invention provides a semiconductor device with high reliability and a method for manufacturing the semiconductor device with high yield. A semiconductor device of the present invention comprises a laminate structure formed in close contact with an organic insulating film on a hydrophobic surface of an inorganic insulating film including silicon and nitrogen. A film having the hydrophobic surface is an insulating film having a contact angle of water of equal to or more than 30°, preferably of equal to or more than 40°.