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58 results about "Nanotube membrane" patented technology

Nanotube membranes are either a single, open-ended nanotube(CNT) or a film composed of an array of nanotubes that are oriented perpendicularly to the surface of an impermeable film matrix like the cells of a honeycomb. 'Impermeable' is essential here to distinguish nanotube membrane with traditional, well known porous membranes. Fluids and gas molecules may pass through the membrane en masse but only through the nanotubes. For instance, water molecules form ordered hydrogen bonds that act like chains as they pass through the CNTs. This results in an almost frictionless or atomically smooth interface between the nanotubes and water which relate to a “slip length” of the hydrophobic interface. Properties like the slip length that describe the non-continuum behavior of the water within the pore walls are disregarded in simple hydrodynamic systems and absent from the Hagen–Poiseuille equation. Molecular dynamic simulations better characterize the flow of water molecules through the carbon nanotubes with a varied form of the Hagen–Poiseuille equation that takes into account slip length.

Carbon nanotube film, conductive prepreg and preparation method thereof

The invention discloses a carbon nanotube film, a conductive prepreg and a preparation method thereof. Comprising the following steps: step 1, preparing a carbon nanotube film; 2, rolling and compounding: carrying out rolling and compounding on the carbon nanotube film and a required adhesive film through a compounding machine to form a conductive adhesive film, and compounding the conductive adhesive film and fibers to form a conductive prepreg; or carrying out rolling compounding on the carbon nanotube film and the required prepreg through a compounding machine to form a conductive prepreg; step 3, cutting and curing to obtain a conductive prepreg with a required specification; according to the carbon nanotube film, the conductive prepreg and the preparation method of the conductive prepreg, the cost of the carbon nanotube film can be effectively reduced, the preparation efficiency of the carbon nanotube film is improved, the storage and transportation modes of the carbon nanotube film are optimized, the carbon nanotube film can be conveniently cut and spliced, the resistance controllability of the conductive prepreg is improved, and the service life of the conductive prepreg is prolonged. And the patterned resistance distribution arrangement can be realized.
Owner:BEIJING GAOYI CHUANGHE AVIATION TECH CO LTD

Foil structure with carbon nanotube, preparation method of foil structure, cold cathode and X-ray tube

The embodiment of the invention provides a foil structure with a carbon nanotube and a preparation method thereof, a cold cathode and an X-ray tube, the foil structure comprises a metal substrate, the metal substrate is provided with a first surface and a first side surface, the first side surface is vertical to the first surface, and the first side surface is located at the edge of at least one side of the metal substrate; the bonding layer is located on the first surface of the metal substrate; the bonding layer is arranged on the first surface of the metal substrate, the multiple carbon nanotubes are located on the first surface of the metal substrate, the bonding layer is used for enhancing the bonding strength of the metal substrate and the multiple carbon nanotubes, the multiple carbon nanotubes comprise a carbon nanotube film and multiple discrete carbon nanotubes, the carbon nanotube film is located on the first surface, and the discrete carbon nanotubes are located on the second surface. The multiple discrete carbon nanotubes are located in the area, close to the first side face, of the first surface, at least the other part of the multiple discrete carbon nanotubes is located outside the carbon nanotube film, orthographic projections of the multiple discrete carbon nanotubes on the metal substrate are located outside the first surface, and the at least the other part of the multiple discrete carbon nanotubes protrude in the direction away from the metal substrate relative to the first side face.
Owner:NURAY TECH CO LTD +1

Membrane capacitive deionization module for treating brine with high magnesium-lithium ratio as well as preparation method and application of membrane capacitive deionization module

The invention provides a membrane capacitive deionization module for treating brine with a high magnesium-lithium ratio as well as a preparation method and application of the membrane capacitive deionization module. The magnesium-lithium ratio of brine is 300-700, and the preparation method comprises the following steps: firstly, mixing and ball-milling an acid-washed lithium titanate molecular sieve, a binder, a conductive agent and a solvent, coating the surface of a whisker carbon nanotube membrane with the obtained slurry to form a coating, and then taking the whisker carbon nanotube membrane comprising the coating as an electrode, and assembling to obtain the membrane capacitive deionization module. Wherein the weight ratio of the acid-washed lithium titanate molecular sieve to the whisker carbon nanotube film is 1: (2-4). According to the membrane capacitive deionization module, efficient adsorption of lithium ions is achieved by utilizing high selectivity of the acid-washed lithium titanate molecular sieve, the whisker carbon nanotube membrane serves as a current collector, the module structure is simplified by utilizing high conductivity and large specific surface area of the whisker carbon nanotube membrane, rapid transmission of charges and uniform adsorption of the lithium ions are promoted, and the membrane capacitive deionization module is suitable for brine treatment; the method is especially suitable for brine with high magnesium-lithium ratio.
Owner:QINGHAI SALT LAKE IND +1

Graphene carbon nanotube electric heating clothes

The utility model relates to the technical field of clothes, and discloses graphene carbon nano tube electric heating clothes which comprise a clothes body and a heating assembly arranged in the clothes body and used for heating. The heating assembly comprises a copper foil electrode cloth covering strip and a plurality of groups of graphene carbon nanotube heating films arranged on the copper foil electrode cloth covering strip; through cooperation between the copper foil electrode cloth covering strip and the graphene carbon nanotube heating film, the copper foil is used as an electrode, is soft, light, thin and good in conductivity, can be bent and then compounded in the cloth to serve as an electrode connecting wire, and is smoother and more attached compared with traditional plastic wire harness connection; the graphene carbon nanotube film is stable in electrical conductivity and heat conduction performance, can be used as a good heating material after being in lap joint with the copper foil, and can keep stable heating performance in a humid environment, so that the heat preservation performance of the garment body worn on the body is guaranteed, and in a low-temperature environment, the heating efficiency of the graphene electric heating garment is remarkably higher than that of traditional heating garments; and the requirement on thermal comfort of a human body can be effectively met.
Owner:ZHONGZHI ENVIRONMENTAL PROTECTION (SHENZHEN) CO LTD

Bolometer array, bolometer array unit, and light detection method

A bolometer array includes a plurality of bolometers and a substrate on which the bolometers are arranged side by side, each bolometer comprising a first electrode, a second electrode disposed on either side of the first electrode via an inter-electrode region, a semiconducting carbon nanotube film connected to the first electrode and the second electrode, and a third electrode disposed apart from the semiconducting carbon nanotube film and capable of adjusting the electric field applied to the semiconducting carbon nanotube film in accordance with the characteristics of the semiconducting carbon nanotube film.
Owner:NEC CORP

Preparation method of carbon nanotube film with high thermoelectric performance

The invention belongs to the field of thermoelectric materials, and particularly relates to a preparation method of a carbon nanotube film with high thermoelectric performance. The preparation method comprises the following steps: uniformly mixing carbon nanotubes with a lignin solution, and carrying out ultrasonic dispersion to obtain a carbon nanotube dispersion liquid; centrifuging the carbon nano tube dispersion liquid until the carbon nano tubes in the carbon nano tube dispersion liquid are settled, removing supernate, dispersing in ammonia water, dispensing on a slide substrate, and drying to obtain the carbon nano tube film. According to the method, lignin is adopted to disperse the carbon nanotubes and is removed through centrifugation, the problem that the carbon nanotubes are prone to agglomeration in an aqueous solution is solved, meanwhile, the influence of non-conductive lignin on the electrical properties of the carbon nanotubes is removed, and the dispersity and thermoelectric properties of the carbon nanotubes are synergistically improved.
Owner:WUHAN INST OF TECH

A carbon nanotube film, a conductive prepreg, and a method for manufacturing the same

ActiveCN119431847BFiberCarbon nanotube
The application discloses a kind of carbon nanotube film, conductive prepreg and its preparation method.The steps include step one, the preparation of carbon nanotube film;Step two, roll composite: carbon nanotube film is rolled with the film of required glue through composite machine and is formed into conductive adhesive film after roll composite, and conductive adhesive film is combined with fiber to form conductive prepreg;Or carbon nanotube film is rolled with the prepreg of required through composite machine and is formed into conductive prepreg;Step three, cutting and curing obtain the required specification of conductive prepreg;By the carbon nanotube film, conductive prepreg and its preparation method described in the application, the cost of carbon nanotube film can be effectively reduced, the preparation efficiency of carbon nanotube film is improved, the storage and transportation mode of carbon nanotube film is optimized, so that carbon nanotube film can be conveniently cut and spliced, and the resistance controllability of conductive prepreg is improved, so that it can realize the patterned resistance distribution setting.
Owner:BEIJING GAOYI CHUANGHE AVIATION TECH CO LTD

Pellicle film for photolithography, pellicle, photolithography mask, photolithography system, and method of producing pellicle film for photolithography

A pellicle film for photolithography including a carbon nanotube film, in which the carbon nanotube film contains carbon nanotubes; the carbon nanotube film transmits 80% or more of EUV light at a wavelength of 13.5 nm; the carbon nanotube film has a thickness from 1 nm to 50 nm; the carbon nanotube film is deposited on a silicon substrate, in which the 3σ of the reflectance is 15% or less when the reflectance of the deposited carbon nanotube film is measured using a reflectance spectrophotometer-based film thickness meter under the following conditions: the diameter of measurement spots, 20 μm; the reference measurement wavelength, 285 nm; the number of measurement spots, 121 spots; the distance between the centers of adjacent measurement spots, 40 μm.
Owner:MITSUI CHEMICALS INC +1

Lightweight electromagnetic shielding composite material and preparation method and application thereof

The invention belongs to the field of polymer composite materials, and relates to a lightweight electromagnetic shielding composite material and a preparation method and application thereof. The thin film comprises an array carbon nanotube membranous material and a polyolefin elastomer which are compounded with each other, the array carbon nanotube film-like material comprises array carbon nanotubes and a low surface energy polymer; and the content of the array carbon nanotubes in the thin film is 0.01-10% by weight. The electromagnetic shielding sheet provided by the invention can obtain good conductivity and electromagnetic shielding performance under the condition that the addition amount of the carbon nanotubes is extremely small.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Thermoplastic resin composition composite foamed sheet and preparation method thereof

The invention belongs to the technical field of high polymer materials, and relates to a thermoplastic resin composition composite foamed sheet and a preparation method thereof. The plate is prepared from a thermoplastic resin composition plate and a reinforcing sheet through mold pressing foaming, the reinforcing sheet is one or more layers of array carbon nano tube / polymer composite reinforcing materials, and the array carbon nano tube / polymer composite reinforcing materials comprise array carbon nano tube film-shaped materials and high-molecular polymers which are compounded with each other. The array carbon nanotube film-like material comprises array carbon nanotubes and a low surface energy polymer; the number of the reinforcing sheets is one or more, the thickness of each layer of the reinforcing sheets is 2 micrometers to 2 mm, and the total thickness of all the reinforcing sheets is not larger than 16 mm. The compatibility between the preset sheet and the matrix resin is greatly improved, and the apparent density and the heat conductivity coefficient of a product can be effectively reduced.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Carbon nanotube film surface treatment method

The invention relates to a surface treatment method for a carbon nanotube film. The surface treatment method comprises the following steps: laying the carbon nanotube film on the surface of a substrate; carrying out annealing on the carbon nano tube film; carrying out acid treatment on the carbon nanotube film by using an inorganic acid, reacting the metal catalyst particles in the carbon nanotube film with the inorganic acid to generate an inorganic salt, and then cleaning the inorganic salt attached to the carbon nanotube film; and carrying out annealing treatment on the carbon nanotube film so as to remove the residual inorganic salt in the carbon nanotube film.
Owner:TSINGHUA UNIVERSITY +1

Carbon nanotube film heating sheet

The utility model discloses a carbon nanotube film heating sheet, which relates to the technical field of heating sheets and comprises a mold, a mold frame of the mold is formed by four side plates which are welded with one another, a bottom plate is integrally formed at the bottom of the mold, a carbon nanotube film is arranged in the middle of an inner cavity of the mold, and the carbon nanotube film is arranged in the middle of the inner cavity of the mold. The side of the carbon nanotube film is connected with an electrode, and meanwhile, the inner cavity of the mold and the surface of the carbon nanotube film and the electrode are coated with a thin film covering layer; and the thin film covering layer is stably adhered to the surfaces of the carbon nanotube film and the electrode through a curing process to form a packaging structure. The heating sheet provided by the scheme has excellent mechanical strength and heat-conducting property, can effectively protect the carbon nanotube film from being influenced by the external environment, and can provide a stable and reliable heating function in different scenes.
Owner:BEIJING TANYUAN NEW MATERIAL TECH CO LTD

An electromagnetic shielding composite material for lightning protection and its preparation method

The present invention discloses an electromagnetic shielding composite material for lightning protection and a preparation method thereof. The electromagnetic shielding composite material for lightning protection includes at least one perforated carbon nanotube film layer and at least one carbon fiber layer which are alternately stacked in sequence, and a plurality of hole structures penetrating along the thickness direction of the perforated carbon nanotube film layer are arranged on the perforated carbon nanotube film layer. By preparing the perforated carbon nanotube film layer and arranging the perforated carbon nanotube film layer in an intercalated manner in the carbon fiber resin, the present invention simultaneously enhances the structural strength, conductivity and resin toughness in the thickness direction. The obtained perforated carbon nanotube film layer has strong interfacial bonding force and does not affect the conductivity and shielding performance. The intercalation method brings excellent mechanical and electrical properties and lightning protection performance to the carbon-based composite material for lightning protection, and a laminated composite material with light weight, high strength, high conductivity and high shielding efficiency is obtained. At the same time, it has a good enhancement effect on the mechanical properties of the composite material.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Carbon nanotube film and continuous preparation method and continuous production system thereof

ActiveCN119305094ARealize continuous preparationhigh strengthCoatingsFlat articlesSlurryNanotube membrane
The invention relates to a carbon nanotube film and a continuous preparation method and a continuous production system thereof, and belongs to the technical field of carbon nanotube film preparation. The continuous preparation method comprises the following steps: preparing carbon nanotube slurry; wherein the carbon nanotube slurry comprises a carbon nanotube, a dispersing agent, resin, a flocculating agent, a defoaming agent and water; continuously paving the carbon nanotube slurry on a circularly moving endless forming net, and carrying out vacuum filtration on the carbon nanotube slurry, so that the carbon nanotube slurry is continuously formed to obtain a carbon nanotube wet film; transferring the carbon nanotube wet film to a circularly moving endless drying net; and drying the carbon nano tube wet film, and rolling the dried carbon nano tube film to obtain the continuously rolled carbon nano tube flexible film. The resin and the flocculating agent are added into the carbon nanotube slurry, so that the carbon nanotube slurry can be formed and retained on a forming net, the strength and the self-supporting property of the carbon nanotube film are improved, and continuous batch production of the carbon nanotube film is facilitated.
Owner:JIANGSU NEW HORIZON ADVANCED FUNCTIONAL FIBER INNOVATION CENT CO LTD

Continuous production system and continuous preparation method of carbon nanotube film

The embodiment of the invention relates to a continuous production system and a continuous preparation method of a carbon nanotube film, and belongs to the technical field of carbon nanotube film preparation. The continuous production system comprises a grinding and pulping system, a pulp distribution system, a vacuum forming system, a top net transfer system, a drying system and a winding device. The grinding and pulping system is used for preparing carbon nanotube slurry; the pulp distribution system is connected with the grinding and pulping system, is positioned above the vacuum forming system, is connected with the vacuum forming system, and is used for spreading the carbon nanotube pulp on the vacuum forming system; the vacuum forming system is used for filtering moisture in the carbon nanotube slurry to obtain a carbon nanotube wet film; the top net transfer system is arranged between the vacuum forming system and the drying system and is used for transferring the carbon nanotube wet film from the vacuum forming system to the drying system through a suction effect; the drying system is used for drying the carbon nanotube wet film to obtain a carbon nanotube film; and the winding device is connected with the drying system and is used for winding the dried carbon nanotube film.
Owner:JIANGSU NEW HORIZON ADVANCED FUNCTIONAL FIBER INNOVATION CENT CO LTD

Methods for dry printing carbon nanotube membranes

Methods for preparing a nanotube membrane for use in a pellicle membrane using dry printing are disclosed. Nanotube fibers are produced in a reaction vessel and dry sprayed onto a filter to form the nanotube membrane. The thickness of the nanotube membrane can be controlled by moving the reaction vessel and the filter relative to each other, or by further processing to reduce the thickness of the layer deposited onto the filter. This method reduces the number of process steps, reducing overall production time, and can also be used to produce larger membranes. The pellicle membrane can be formed with multiple layers and has a combination of high transmittance, low deflection, and small pore size. A conformal coating may applied to an outer surface of the pellicle membrane to protect the pellicle membrane from damage that can occur due to heat and hydrogen plasma created during EUV exposure.
Owner:TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

Carbon nanotube pellicle membrane

There is provided a carbon nanotube pellicle membrane for a lithography apparatus, the pellicle membrane including a sacrificial coating. Also provided is a pellicle for a lithographic apparatus, the pellicle including such a pellicle membrane and a support frame for supporting the pellicle membrane, as well as a lithographic apparatus comprising such a pellicle membrane or pellicle. Also described is a method and apparatus for manufacturing a pellicle membrane, as well as the use of such a pellicle membrane, pellicle, lithographic apparatus, method or manufacturing apparatus in a lithographic method or apparatus.
Owner:ASML NETHERLANDS BV

Preparation method of matt coating and matt coating

The invention discloses a preparation method of a matt coating and the matt coating, relates to the technical field of matt materials, and can improve the mechanical strength while ensuring the high absorbance of the matt coating. According to the scheme, the method comprises the following steps: forming a nano multilayer film on the surface of a substrate layer, wherein the nano multilayer film comprises a plurality of layers of nano aluminum films and nano silicon oxide films which are alternately arranged; forming a two-dimensional material heterostructure film on the nano multilayer film; forming a carbon nanotube film on the two-dimensional material heterostructure film; after a composite material film is formed on the carbon nanotube film, the extinction coating is obtained, and the composite material film is composed of a self-healing high-molecular polymer, carbon nanotubes, aluminum oxide nanoparticles, graphene oxide and molybdenum sulfide.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Flexible PAN / P25 porous nanotube film as well as preparation method and application thereof

The invention relates to the technical field of photocatalyst degradation of water pollution, and discloses a flexible PAN / P25 porous nanotube membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: ultrasonically dispersing TiO2 in N, N-dimethylformamide, sequentially adding polyacrylonitrile and polyvinylpyrrolidone, and magnetically stirring to obtain a uniform spinning solution; the spinning solution is subjected to electrostatic spinning and drying treatment, and a PAN / PVP / P25 nanofiber membrane is obtained; and cutting the PAN / PVP / P25 nanofiber membrane according to a preset size, transferring the cut PAN / PVP / P25 nanofiber membrane into a high-pressure reaction kettle, adding ethylene glycol, carrying out a solvothermal induction reaction, repeatedly washing with deionized water, and drying to obtain the flexible PAN / P25 porous nanotube membrane. The flexible PAN / P25 porous nanotube membrane is an economical, environment-friendly and safe sewage treatment material, is high in photocatalytic efficiency and low in cost, and is applied to treatment of water pollution.
Owner:WUHAN POLYTECHNIC UNIVERSITY

Methods for removing catalyst particles from nanotube films

Methods for removing a catalyst particle from a nanotube film used in a photolithographic patterning process are disclosed. The catalyst particle is identified based on its size in the nanotube film. This identification can be done using an inspection device such as a confocal microscope, which permits comparison of images taken in two or more separate focal planes to determine the size of particles. The catalyst particle is then exposed to a first absorption wavelength using a laser, which is selectively absorbed by the catalyst particle and which heats the catalyst particle to remove the catalyst particle from the nanotube film. Optionally, the catalyst particle-free nanotube film can be further exposed to a second absorption wavelength which is selectively absorbed by the film and promotes repair of the film. The resulting nanotube film can be used in a pellicle membrane.
Owner:TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

Use of array carbon nanotube / polymer composite reinforced sheet in polymer foaming process and injection-molded foamed molded body

The application belongs to the technical field of high polymer materials, and relates to application of array carbon nanotube / high polymer composite reinforcing sheet in polymer foaming process and injection molding foaming forming body. In the polymer foaming process, the array carbon nanotube / high polymer composite reinforcing sheet is used as a preset sheet; the reinforcing sheet comprises array carbon nanotube film material and high polymer, and the array carbon nanotube film material comprises array carbon nanotube and low surface energy polymer; and the thickness of the reinforcing sheet is 2 microns to 2 millimeters. The array carbon nanotube / high polymer composite reinforcing sheet is used as a preset sheet, the preset sheet has excellent rigidity and impact toughness, and compared with the preset reinforcing sheet of non-thermoplastic resin material in the market, the compatibility is greatly improved, and the array carbon nanotube / high polymer composite reinforcing sheet has wide market prospect in the field of polymer foaming technology.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Orientation treatment method for carbon nanotube film

The invention belongs to the technical field of carbon nanotube films, and particularly relates to a carbon nanotube film orientation treatment method. The orientation treatment method for the carbon nanotube film comprises the following steps: preparing a carbon nanotube / resin adsorption film by a floating catalytic chemical vapor deposition method; performing pre-curing heat treatment on the carbon nano tube / resin adsorption film to prepare a carbon nano tube / resin composite film; carrying out hot rolling orientation treatment on the carbon nano tube / resin composite film to prepare an oriented carbon nano tube / resin composite film; and carrying out heat treatment on the oriented carbon nanotube / resin composite film to prepare the oriented carbon nanotube film. After being treated by the method disclosed by the invention, the carbon nanotube bundles are converted into a highly-oriented arrangement state from a random network. Due to the structure, the oriented film material has a wide application prospect in the fields of oriented conduction, oriented enhancement, electric heating and the like, and particularly, a key raw material is provided for preparing an anisotropic functional composite material.
Owner:SHANDONG UNIV

Fluoroplastic conductive composite film and preparation method and application thereof

The invention belongs to the technical field of conductive films, and relates to a fluoroplastic conductive composite film and a preparation method and application thereof. The film comprises an array carbon nanotube film-like material and a fluoroplastic film which are compounded with each other, the array carbon nanotube film-like material comprises array carbon nanotubes and a low surface energy polymer; and the content of the array carbon nanotubes in the thin film is 0.01-5% by weight. The fluoroplastic composite film disclosed by the invention can obtain good conductivity under the condition that the addition amount of the carbon nanotubes is extremely small, and has good tensile strength at the same time.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Flexible ZIF-67 / PAN porous nanotube film as well as preparation method and application thereof

The invention relates to the technical field of ZIF-67 loaded nanotube membranes, and discloses a flexible ZIF-67 / PAN porous nanotube membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving polyacrylonitrile and polyvinylpyrrolidone in N, N-dimethylformamide, and stirring to obtain a uniform precursor spinning solution; the precursor spinning solution is subjected to electrostatic spinning and drying treatment, and a PAN / PVP nanofiber membrane is obtained; cutting the PAN / PVP nanofiber membrane according to a preset size, adding ethylene glycol, and carrying out a solvothermal induction reaction to obtain a bionic loofah sponge-shaped flexible porous PAN nanotube membrane; the preparation method comprises the following steps: dissolving cobalt nitrate hexahydrate in methanol to prepare a solution A, dissolving 2-methylimidazole in methanol to prepare a solution B, soaking a bionic loofah sponge-shaped flexible porous PAN nanotube membrane in the solution A, then adding the solution B, and slowly oscillating to obtain the ZIF-67 / PAN flexible porous nanotube membrane loaded with ZIF-67 on the surface. The ZIF-67 / PAN flexible porous nanotube film is applied to catalytic degradation and selective adsorption of organic pollutants.
Owner:WUHAN POLYTECHNIC UNIVERSITY

A functional silk fibroin / titanium dioxide nanotube composite membrane and its preparation method

This invention discloses a functional silk fibroin / titanium dioxide nanotube composite membrane and its preparation method. The composite membrane is a three-layer structure: a lower layer is a support membrane based on silk fibroin, a middle layer is a titanium dioxide nanotube membrane separated from a metal substrate, and an upper layer is a polymer electrospun fiber layer. The preparation method involves coating a silk fibroin mixture solution onto the surface of a titanium-based metal substrate, drying it, peeling off the membrane, treating it with an etchant, immersing it in a drug solution, drying it, and using it as a receiving electrode. Polymer electrospun fibers are then grown on the membrane using electrospinning technology to seal the titanium dioxide nanotubes, resulting in the composite membrane. The composite membrane of this invention ensures that the titanium dioxide nanotube membrane layer is not prone to cracking or curling, and while achieving the sealing of the drug-loaded titanium dioxide nanotube openings, it does not affect the structure and performance of the support membrane.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Array carbon nanotube polyamide composite material, biaxially oriented polyamide film and preparation method and application of array carbon nanotube polyamide composite material and biaxially oriented polyamide film

The invention belongs to the technical field of films for packaging, and relates to an array carbon nanotube polyamide composite material and a biaxially oriented polyamide film as well as a preparation method and application thereof. The composite material comprises an array carbon nanotube membranous material and polyamide which are compounded with each other, the array carbon nanotube film-like material comprises array carbon nanotubes and a low surface energy polymer; the content of the array carbon nanotubes in the composite material is 0.01-1 wt%. The conductive film provided by the invention can obtain good conductivity under the condition that the addition amount of the carbon nanotubes is extremely small. In addition, the film also has good bidirectional tensile strength and good barrier property. Therefore, the film disclosed by the invention has a wide application prospect in the field of antistatic packaging.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Membrane capacitive deionization module for treating high-mg / lithium ratio brine, method of making and use thereof

The application provides a membrane capacitive deionization module for treating high magnesium-lithium ratio brine, a preparation method and application thereof. The magnesium-lithium ratio of the brine is 300-700. The preparation method comprises the following steps: firstly, mixing pickling lithium titanate molecular sieves, a binder, a conductive agent and a solvent, ball milling, coating the obtained slurry on the surface of a whisker carbon nanotube membrane to form a coating layer, and then taking the whisker carbon nanotube membrane including the coating layer as an electrode to assemble the membrane capacitive deionization module. The weight ratio of the pickling lithium titanate molecular sieves to the whisker carbon nanotube membrane is 1:(2-4). The membrane capacitive deionization module of the application realizes efficient adsorption of lithium ions by using the high selectivity of the pickling lithium titanate molecular sieves, uses the whisker carbon nanotube membrane as a current collector, simplifies the module structure by using the high conductivity and large specific surface area of the whisker carbon nanotube membrane, promotes the rapid transmission of electric charges and the uniform adsorption of lithium ions, and is suitable for brine treatment, especially for high magnesium-lithium ratio brine.
Owner:QINGHAI SALT LAKE IND +1

Methods for removing catalyst particles from nanotube films

Methods for removing a catalyst particle from a nanotube film used in a photolithographic patterning process are disclosed. The catalyst particle is identified based on its size in the nanotube film. This identification can be done using an inspection device such as a confocal microscope, which permits comparison of images taken in two or more separate focal planes to determine the size of particles. The catalyst particle is then exposed to a first absorption wavelength using a laser, which is selectively absorbed by the catalyst particle and which heats the catalyst particle to remove the catalyst particle from the nanotube film. Optionally, the catalyst particle-free nanotube film can be further exposed to a second absorption wavelength which is selectively absorbed by the film and promotes repair of the film. The resulting nanotube film can be used in a pellicle membrane.
Owner:TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

Fuel cell carbon nanotube membrane electrode and preparation method thereof

The invention belongs to the technical field of fuel cells, and provides a fuel cell carbon nanotube membrane electrode and a preparation method thereof. According to the invention, a traditional microporous layer is abandoned, so that the gas diffusion layer also needs to undertake the function of uniformly distributing reaction gas, thereby solving the problems of non-uniform dispersion of the carbon nanotubes, weak interface bonding force between the microporous layer and other components, complex preparation process, high cost and the like in the existing preparation method; the carbon nanotube microporous layer membrane electrode which is excellent in performance, good in stability and low in cost is prepared, the requirement of energy conversion and storage equipment for a high-performance membrane electrode is met, and a process and a formula suitable for the carbon nanotube microporous layer membrane electrode are provided. Innovative improvement is realized in the aspects of slurry process and production efficiency, and the performance and stability of the membrane electrode are improved.
Owner:GUANGDONG YUNTAO HYDROGEN ENERGY TECH CO LTD

A carbon nanotube film and a continuous preparation device system and method thereof

The application provides a carbon nanotube film and a continuous preparation device system and method thereof, the continuous preparation device system comprises a first unwinding roller, a vacuum forming system, a pressing roller, a drying device and a first winding roller connected in sequence; a mortar spraying device is arranged above the vacuum forming system; the mortar spraying device is connected with a mortar distribution system, a defoaming device and a carbon nanotube dispersion liquid storage tank in sequence; the pressing roller is independently connected with a second unwinding roller and a second winding roller respectively; the vacuum forming system is used for suction filtration forming of the carbon nanotube dispersion liquid to form a porous substrate-carbon nanotube film; the pressing roller is used for lamination of the lamination of the substrate and the porous substrate-carbon nanotube film, and the carbon nanotube film is transferred from the porous substrate to the lamination substrate. The continuous preparation device system and method provided by the application realize continuous preparation of the carbon nanotube film which is coiled, self-supporting and excellent in performance.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI