34 results about "Nanotube membrane" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention belongs to the technical field of high polymer materials, and relates to a thermoplastic resin foamed bead forming body and a preparation method thereof. The forming body comprises a thermoplastic resin matrix and an array carbon nano tube / high-molecular composite reinforced sheet, the array carbon nano tube / high-molecular composite reinforced sheet comprises an array carbon nano tube film-like material and a high-molecular polymer which are compounded with each other, and the array carbon nano tube film-like material comprises array carbon nano tubes and a low-surface-energy polymer; the content of the array carbon nanotube / polymer composite reinforced sheet in the forming body is 0.05-60% by weight; and the thickness of the array carbon nanotube / polymer composite reinforced sheet is 2 [mu] m to 2 mm. According to the invention, various physical properties of the product can be obviously improved through preset sheet reinforcement.

Embodiments of the present application provide a foil structure with carbon nanotubes, a method for manufacturing the foil structure, a cold cathode, and an X-ray tube. The foil structure includes a metal substrate having a first surface and a first side perpendicular to the first surface, the first side being located at an edge of at least one side of the metal substrate; a bonding layer located on the first surface of the metal substrate; and a plurality of carbon nanotubes located on the first surface of the metal substrate, wherein the bonding layer is configured to enhance a bonding strength between the metal substrate and the plurality of carbon nanotubes, the plurality of carbon nanotubes includes a carbon nanotube film located on the first surface and a plurality of discrete carbon nanotubes, at least a portion of the plurality of discrete carbon nanotubes is located on the first surface near the first side, at least another portion of the plurality of discrete carbon nanotubes is located outside the carbon nanotube film and has a projection on the metal substrate located outside the first surface, and the at least another portion of the plurality of discrete carbon nanotubes protrudes in a direction away from the metal substrate relative to the first side.

The invention belongs to the field of polymer composite materials, and relates to a silicone rubber flexible conductive film and a preparation method and application thereof. The thin film comprises an array carbon nanotube film-like material and silicone rubber 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 conductive film provided 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.

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.

This invention relates to a method for manufacturing semiconducting carbon nanotube (s-SWNT) films and thermoelectric (TE) devices based thereon. It specifically concerns obtaining self-doped s-SWNT films by controlling the addition of minute quantities of metallic carbon nanotubes (m-SWNTs) through a repetitive filtration (RF) process, and subsequently manufacturing high-performance TE devices based on these films.

The invention provides an epoxy-bismaleimide resin-based electromagnetic shielding composite film and a preparation method thereof, and belongs to the field of electromagnetic shielding materials, the electromagnetic shielding composite film is of a three-layer structure, the upper layer and the lower layer are epoxy-bismaleimide resin adhesive film layers, the middle layer is a copper-plated carbon nanotube film electromagnetic shielding layer, and the composite film is formed by pressing through a hot pressing roller. The bonding strength and high temperature resistance of a resin matrix are improved through formula design and toughening modification of epoxy-bismaleimide double-component resin, the shielding performance of a carbon nanotube film is improved through magnetron sputtering copper plating, and the problem that powder conductive filler is difficult to uniformly disperse in the resin matrix is solved through the design of a layered structure. The electromagnetic shielding composite film provided by the invention has good bonding strength, high temperature resistance and electromagnetic shielding performance, the preparation process is simple, the cost is low, and large-area preparation is easy.

The invention discloses a preparation method of a KB / Mo2C / CNT thin film and application of the KB / Mo2C / CNT thin film in an intermediate layer of a lithium-sulfur battery, and belongs to the technical field of lithium-sulfur batteries. The preparation method comprises the following steps: plating a metal molybdenum oxide target material on a CNT substrate in the form of nanoparticles, then carrying out KB loading and PVP dispensing, and finally carrying out carbon thermal reduction on MoO3 into Mo2C nanoparticles through Joule heat so as to form the KB / Mo2C / CNT film. The film material can be rapidly heated by Joule heat generated when current passes through the nanotube film, the method is especially suitable for synthesis of some materials needing high-temperature treatment, and the method has the advantages of being simple in equipment, convenient to operate, high in adaptability, high in preparation speed and the like. Compared with a traditional film coating method, the film coating technology is simple, rapid and low in cost, the thickness and size of the film can be accurately controlled, different application scenes are met, use of harmful chemical substances is reduced, and environmental protection is facilitated.

Provided is a technology capable of realizing a protective film made of carbon nanotubes and having excellent in-plane uniformity of transmittance. A protective film (12) includes a plurality of first carbon nanotubes (1200a) each extending along a first direction (D1) and arranged along a radial direction, and a plurality of second carbon nanotubes (1200b) each extending along a second direction (D2) intersecting the first direction (D1) and arranged along the radial direction.

The invention relates to the technical field of electromagnetic shielding film manufacturing, in particular to a bismaleimide resin-based electromagnetic shielding composite film preparation method which comprises the following steps: adding polyether sulfone into diallyl bisphenol A, carrying out oil bath, and uniformly stirring to obtain a mixed solution; cooling the mixed solution, adding 4, 4 '-diaminodiphenylmethane bismaleimide, and uniformly stirring to obtain an adhesive; coating an adhesive to form a film so as to prepare a first bismaleimide resin adhesive film layer and a second bismaleimide resin adhesive film layer; performing magnetron sputtering copper plating on the carbon nanotube film to obtain an electromagnetic shielding film layer; the first bismaleimide resin adhesive film layer, the electromagnetic shielding film layer and the second bismaleimide resin adhesive film layer are subjected to hot-pressing compounding to obtain a finished product. By accurately controlling the ratio of the polyether sulfone to the 4, 4 '-diamino diphenylmethane bismaleimide to the diallyl bisphenol A, the toughness and the adhesion of the bismaleimide resin are improved; and due to the three-layer composite structure, the problem of uneven shielding is effectively solved, and high temperature resistance and high shielding performance are both considered.

A technique that can achieve a pellicle film made of carbon nanotubes and having high in-plane transmittance uniformity. The pellicle film contains a plurality of first carbon nanotubes extending in a first direction and arrayed in the radial direction, and a plurality of second carbon nanotubes extending in a second direction intersecting the first direction, and arrayed in their radial direction.

The invention discloses a high-conductivity carbon nanotube membrane purification process method. The carbon nanotube film is prepared based on a floating catalysis method, and the purification process mainly comprises acid pickling, drying and electrothermal heat treatment. The invention develops a purification process method which is efficient, low in cost, mild in reaction condition and environment-friendly, amorphous carbon and catalyst iron in the film are removed on the premise of not damaging the intrinsic structure of the carbon nano tube, and the purity and the electrical property of the carbon nano tube are effectively improved.