11202 results about "Nanomaterials" patented technology

A method of forming a carbon nano-material layer may involve a cyclic deposition technique. In the method, a chemisorption layer or a chemical vapor deposition layer may be formed on a substrate. Impurities may be removed from the chemisorption layer or the chemical vapor deposition layer to form a carbon atoms layer on the substrate. More than one carbon atoms layer may be formed by repeating the method.

A low temperature chemical route to efficiently produce nanomaterials is described. The nanomaterials are synthesized by intercalating ions into layered compounds, exfoliating to create individual layers and then sonicating to produce nanotubes, nanorods, nanoscrolls and/or nanosheets. It is applicable to various different layered inorganic compounds (for example, bismuth selenides/tellurides, graphite, and other metal complexes, particularly transition metal dichalcogenides compounds including oxygen, sulfur, tellurium or selenium).

Methods and systems for depositing nanomaterials onto a receiving substrate and optionally for depositing those materials in a desired orientation, that comprise providing nanomaterials on a transfer substrate and contacting the nanomaterials with an adherent material disposed upon a surface or portions of a surface of a receiving substrate. Orientation is optionally provided by moving the transfer and receiving substrates relative to each other during the transfer process.

The present invention belongs to the field of inorganic nanometer material technology, in particular, it relates to a method for preparing mesoporous molecular sieve carrier material by using diblockmacromolecular polymer. It is characterized by that under the acid condition it uses polyoxyethylene-polyoxybutylene diblock macromolecular surfactant as template agent and makes hydrothermal synthesis at 100 deg.C to prepare mesoporous silicon oxide material with two-dimensional hexagonal structure with high degree of order and large specific surface area and laminate silicon oxide material withhigh degree of order. These new material can be used as catalyst, catalyst carrier, adsorption film, organic-inorganic composite material, sensor and chromatographic packing, etc.

Compositions and processes for forming radiopaque polymeric articles are disclosed. In one embodiment, radiation inspection apparatuses and methods are then used to determine the presence and attributes of such radiopaque polymeric articles. A radiopaque polymeric article of the present invention can be created by mixing a radiopaque material, such as barium, bismuth, tungsten or their compounds, with a powdered polymer, pelletized polymer or liquid solution, emulsion or suspension of a polymer in solvent or water. In addition to creating radiation detectable objects, the radiopaque polymeric materials of the present invention can be used to create radiation protective articles, such as radiation protective garments and bomb containment vessels. Enhanced radiation protection can also be achieved through the use of nano-materials. The principals of the present invention can be used to provide protection against other types of hazards, including fire, chemical, biological and projectile hazards.

A microwave-induced heating of CNT filled (or coated) polymer composites for enhancing inter-bead diffusive bonding of fused filament fabricated parts. The technique incorporates microwave absorbing nanomaterials (carbon nanotubes (CNTs)) onto the surface or throughout the volume of 3D printer polymer filament to increase the inter-bead bond strength following a post microwave irradiation treatment and/or in-situ focused microwave beam during printing. The overall strength of the final 3D printed part will be dramatically increased and the isotropic mechanical properties of fused filament part will approach or exceed conventionally manufactured counterparts.

A loudspeaker cone body made of plastic includes a base carrier material and a filler material. The base carrier material is selected to optimize overall flow, weight and stiffness. The filler material may be a nanomaterial that provides for adjustment of process and acoustic related characteristics in the loudspeaker cone body that become relevant when the loudspeaker cone body is operated in a loudspeaker. Acoustic related characteristics that may be adjusted include a stiffness to weight ratio and an acoustic damping of the loudspeaker cone body. A predetermined weight percent of the filler material may be combined with the base carrier material to obtain repeatable desired acoustic related characteristics. The acoustic related characteristics may be adjusted by changing the predetermined weight percent of the filler material.

A method of depositing silicon on carbon nanomaterials such as vapor grown carbon nanofibers, nanomats, or nanofiber powder is provided. The method includes flowing a silicon-containing precursor gas in contact with the carbon nanomaterial such that silicon is deposited on the exterior surface and within the hollow core of the carbon nanomaterials. A protective carbon coating may be deposited on the silicon-coated nanomaterials. The resulting nanocomposite materials may be used as anodes in lithium ion batteries.

The invention provides a thick coating material capable of purifying air and a preparation method thereof, belonging to the building material field. An internal wall coating decorative material comprises 5 to 40 weight portions of a porous absorbing material and 10 to 40 weight portions of a composite photocatalysis material in every 100 weight portion of the paint. In the preparation method, the coating material, is formed by compounding a mineral material with the nanometer photocatalysis material to obtain a high activity purifying material, matching the high activity purifying material with other nanometer materials and the porous absorbing material, and then adding an inorganic filling material, a skeletal material and other addition agents, can remove harmful gases such as formaldehyde and toluol in air and has the environmental protection function. The paint has good effect for removing formaldehyde, is effective continuously, has certain thickness when the coating layer is used, has simple construction, and beautiful and elegant patterns, is well-bedded, is strong in the three-dimension effect and has good decorative effect.

A system that receives nanomaterials, forms nanofibrous materials therefrom, and collects these nanofibrous materials for subsequent applications. The system is coupled to a chamber that generates nanomaterials, typically carbon nanotubes produced from chemical vapor deposition, and includes a mechanism for spinning the nanotubes into yarns or tows. Alternatively, the system includes a mechanism for forming non-woven sheets from the nanotubes. The system also includes components for collecting the formed nanofibrous materials. Methods for forming and collecting the nanofibrous materials are also provided.

The present invention relates to an anti-icing composite nano-coating and an application thereof. The anti-icing composite nano-coating is composed of organic fluorine-silicon composite polymer material, nano-material, curing agent, solvent and filler, the weight percentages of which are as follows: 1 to 98 percent of organic fluorine-silicon composite polymer material, 1 to 92 percent of nano-material, 1 to 50 percent of curing agent, 0 to 90 percent of solvent and 0 to 50 percent of filler. The doses of substances are uniformly mixed and ground so that the anti-icing composite nano-coating is prepared. The anti-icing composite nano-coating can be used to prevent the power transmission lines, conductors, conductor metal fittings, pole towers, stayguys, stayguy fixtures and other power and communication facilities of electric power systems and communication networks from being iced.

The present invention is directed to methods to produce, process, and exploit nanomaterials, and particularly elongated nanowire materials. The invention provides a method for producing nanowires that includes providing a thin film of a catalyst material with varying thickness on a substrate, heating the substrate and thin film, such that the thin film disassociates at the relatively thinner regions and vapor depositing a semiconductor onto the substrate to produce nanowires. A method is also provided in which two or more thin films of different materials are overlayed over a substrate, selectively etching the first underlying thin film to create a plurality of islands of the second thin film that mask portions of the first thin film and expose other portions and growing nanowires on the first thin film. Additional methods for producing nanowires are provided.

A bit for drilling subterranean formations that includes a bit body including a bearing surface; a cutting structure mounted on the bit body, and including a bearing surface, and an annular seal for retaining a grease between the bearing surfaces, the annular seal comprising a flexible and resilient seal body formed from an elastomer composition, wherein the elastomer composition comprises an elastomer material, a curing agent, and 10% or less by volume of a nanomaterial additive selected from one of nanotubes and clustered nanodiamonds is disclosed.

The present invention relates a graphene/metal oxide hybrid aerogel, a preparation method and applications thereof, and belongs to the field of nanometer material applications. The hybrid aerogel comprises a graphene network and a metal oxide network, wherein the two networks are mutually wound to form a hybrid aerogel, and the metal oxide network is further a crystalline state. The hybrid aerogel preparation comprises: preparing a graphene oxide organic solution, adding a soluble metal salt and an epoxide to obtain a uniform non-flowing hybrid wet gel, and carrying out drying and charring to obtain the graphene/metal oxide hybrid aerogel. The hybrid aerogel can be used as an energy storage material, an electromagnetic shielding material, a biological enzyme catalysis carrier and a CO2 absorption material, and has wide applications.

This invention relates generally to uses of novel nanomaterial composition and the systems in which they are used, and more particularly to nanomaterial compositions generally comprising carbon and a metal, which composition can be exposed to pulsed emissions to react, activate, combine, or sinter the nanomaterial composition. The nanomaterial compositions can alternatively be utilized at ambient temperature or under other means to cause such reaction, activation, combination, or sintering to occur.

The invention provides a multi-element composite nano-material for a super capacitor, and a preparation method of the nano-material. The nano-material comprises a carbon material, metal oxide and conducting polymer, and components of the nano-material can be two or more than two materials. By the aid of the characteristics such as fine electrical conductivity, long cycle life and high specific surface area of the carbon material, high pseudo-capacitance of the metal oxide and low internal resistance, low cost and high operating voltage of the conducting polymer, different types of electrode materials generate synergistic effects, advantages are mutually combined, shortcomings are mutually weakened, the energy storage characteristics of an electric double-layer capacitor and a pseudo-capacitor are simultaneously made full use of, a composite electrode material with high power density, fine circulating stability and higher energy density is prepared, and the multi-element composite nano-material is excellent in comprehensive performance when used for an electrode of the super capacitor, has the advantages of simple preparation process, short cycle, low cost and the like, and is suitable for large-scale industrial production.

This invention concerns Chemically-sensitive Field Effect Transistors (ChemFETs) that are preferably fabricated using semiconductor fabrication methods on a semiconductor wafer, and in preferred embodiments, on top of an integrated circuit structure made using semiconductor fabrication methods. The instant ChemFETs typically comprise a conductive source, a conductive drain, and a channel composed of a one-dimensional (1D) or two-dimensional (2D) transistor nanomaterial, which channel extends from the source to the drain and is fabricated using semiconductor fabrication techniques on top of a wafer. The ChemFET also includes a gate, often the gate voltage is provided through a fluid or solution proximate the ChemFET. Such ChemFETs, preferably configured in independently addressable arrays, may be employed to detect a presence and/or concentration changes of various analyte types in chemical and/or biological samples, including nucleic acid hybridization and/or sequencing reactions.

The invention relates to an aqueous binder which is compounded and modified by micro nano material. The modified aqueous binder of the invention adopts emulsion adhesive as matrix and micro-size and nano-size inorganic powder as modifier to prepare the compound and modified aqueous binder. The method of the invention can not only enhance the interface binding force of the aqueous binder, but also greatly improve the properties of water resistance, toughness and extensibility, leading comprehensive performance of the aqueous binder to be improved.

The invention provides a method for preparing a titanium dioxide nano belt, belonging to the nano material technical field. The prior methods for preparing the titanium dioxide nano belt comprise the hydro-thermal method and the combination method of the sol-gel method and the hydro-thermal method. The prior electrostatic spinning method is applied to the preparation of nano fibers. The invention comprises three steps that: 1. a spinning solution is prepared; the mixture of polymethylmethacrylate and vinylpyrrolidone is used as a macromolecule template, and the mixture of chloroform and N,N-dimethylformamide is used as a solvent; 2. a titanium alkoxide/ macromolecule template compound nano belt is prepared; the electrostatic spinning method is used, and the technical parameters are as follows: the voltage is between 15 and 25kV and the curing distance is between 15 and 30cm; 3. a TiO2 nano belt is prepared; the heat treatment method is used, and the technical parameters are as follows: the rate of temperature rise is between 0.5 and 2 DEG C/min and the heat preservation time at the temperature of between 500 and 900 DEG C is between 10 and 15h; for the TiO2 nano belt prepared, the width is between 5 and 15mu m, the thickness is between 30 and 60nm and the length is more than 200mu m; the TiO2 nano belt comprises a pure phase anatase type TiO2 nano belt and a pure phase rutile type TiO2 nano belt.

A lubricant composition for use as a concentrate and motor oil having an enhanced thermal conductivity. One preferred composition contains a lubricant composition, nanomaterial, and a dispersing agent or surfactant for the purpose of stabilizing the nanomaterial. One preferred nanomaterial is a high thermal conductivity graphite, exceeding 80 W/m in thermal conductivity. Carbon nano material or nanostructures such as nanotubes, nanofibrils, and nanoparticles formed by grounding and/or milling graphite to obtain a mean particle size less than 500 nm in diameter, and preferably less than 100 nm, and most preferably less than 50 nm. Other high thermal conductivity carbon materials are also acceptable. To confer long-term stability, the use of one or more chemical dispersants or surfactants is useful. The graphite nanomaterials contribute to the overall fluid viscosity and providing a very high viscosity index. Particle size and dispersing chemistry is controlled to get the desired combination of viscosity and thermal conductivity increase from the lubricant. The resulting fluids have unique properties due to the high thermal conductivity and high viscosity index of the suspended particles, as well as their small size.

The invention provides a high-performance hybrid separation membrane and a preparation method thereof. The interior of a matrix material of the separation membrane, the surface of the separation membrane and the surfaces of membrane pores all contain a poly-o-phenylenediquinone compound produced after oxidation of a pyrocatechol compound and cross-linked, cured and uniformly dispersed nano-materials. The preparation method comprises the following steps: adding a pyrocatechol derivative into a membrane-casting blended solution of the nano-materials and a polymer to promote bonding of the nano-materials and the polymer; and oxidizing the pyrocatechol compound into the poly-o-phenylenediquinone compound in the processes of phase inversion and film formation so as to realize cross-linking and curing of the nano-materials and dispersion of the nano-materials in the polymer matrix. The method comprises the concrete steps of preparation of the membrane-casting solution, blending of a coagulation bath, film formation and curing and/or modification.

The invention relates to a preparation method of graphene based on ascorbic acid, belonging to the technical field of nano materials. The preparation method comprises the following steps: preparing brown graphite suspending liquid; preparing luminous yellow graphite diluent; preparing graphite oxide solid; dispersing graphite oxide into deionized water, separating graphene oxide by ultrasonic separation treatment for 1 hour and preparing graphene oxide solution; and fully mixing the graphene oxide solution and ascorbic acid water solution, stewing and obtaining the graphene solution. The preparation adopts the ascorbic acid as a reducing agent, shortens reaction time under the condition that no stabilizing agent is added, obtains single-layer grapheme with the thickness of 0.8 to 1.2nm and is beneficial to batch production of the grapheme.

Thermal interface compositions contain nanoparticles blended with a polymer matrix. Such compositions increase the bulk thermal conductivity of the polymer composites as well as decrease thermal interfacial resistances that exist between thermal interface materials and the corresponding mating surfaces. Formulations containing nanoparticles also show less phase separation of micron-sized particles than formulations without nanoparticles.

The invention relates to a method for preparing continuous graphen/zinc oxide composite structure in large area, which belongs to the preparation field of the novel nanometer material, and is applicable to the fields such as sensor, solar panel, novel nanometer part and the like. The method comprises the following three steps that: first step: uniformly dispersing graphen or graphene oxide in liquid phase; second step: utilizing a hydrothermal process to ensure the zinc oxide nanometer structure and the graphen two-dimensional sheet to form a continuous structure in a three-dimensional space; third step: transferring the prepared composite structure onto a substrate to be dried. The method has simple process and low device requirement since the composite structure is synthesized in the solution; the process repeatability is strong, and the process parameter can be well controlled; the prepared graphen/zinc oxide composite structure has large area and is continuous, the generated zinc oxide nanometer sheet layer, nanometer particle and nanometer line are connected with each other and intersected with each other under the effect of the graphen so as to form a continuous porous structure in the three-dimensional space.

The present invention relates to labelled silica-based nanoparticles with enhanced properties, to process for preparing them and to uses thereof.

Disclosed herein is a method for manufacturing a composite fiber filter having high efficiency and high functionality, the method comprising: melt-spinning microfiber yarns on a forming rod, which is made of a conductive material, grounded at one end thereof and rotatably driven, using a melt-spinning device, to form on the forming layer a microfiber layer consisting of the microfiber yarns; and electrospinning on the microfiber layer an electrospinnable polymer solution having a given dielectric constant, using an electrospinning device, so as to form on the microfiber layer a nanofiber layers consisting of nanofiber yarns, wherein the microfiber yarns of the microfiber layer and the nanofiber yarns of the nanofiber layer contain silver nanoparticles so as to have an antibacterial function.

The invention belongs to the field of building materials, relates to a use of a nano-material in a building exterior wall heat-retaining system and provides a nano-material-containing high-strength high-heat insulation exterior wall inorganic heat-retaining face brick. The nano-material-containing high-strength high-heat insulation exterior wall inorganic heat-retaining face brick is characterized in that nano-particles are used so that compressive strength, tensile strength and bonding strength are improved. The nano-material-containing high-strength high-heat insulation exterior wall inorganic heat-retaining face brick is prepared by adding a nano-material having a nanoscale particle size into a mixed system of cement, an auxiliary gel material, a polymer binder, an inorganic light heat-retaining material, fibers and water, uniformly mixing, carrying out pressing molding of the mixture, carrying out organic polymer crosslinking and cement hydration drying, and carrying out waterproof layer coating. The nano-material-containing high-strength high-heat insulation exterior wall inorganic heat-retaining face brick has the advantages of excellent flame resistance, high compressive strength, high tensile strength, high bonding strength and good insulation effects.

The invention relates to a wear-resisting super-hydrophobic coating composition as well as a preparation method and application thereof. The composition is prepared from a nano-material dispersion solution and a binding material dispersion solution. The nano-material dispersion solution is prepared by mixing a nanoparticle material, a hydrophobic silane coupling agent and a volatile solvent, wherein nanoparticles form a rough structure with a micro-nano dual scale through a mutual effect of the nanoparticles and the structure is dispersed in the solution of the hydrophobic silane coupling agent; the hydrophobic silane coupling agent has one or more groups and covalent bond connection is formed by the hydrophobic silane coupling agent and the micro-nano dual rough structure; meanwhile, thewear-resisting super-hydrophobic coating composition at least contains one hydrophobic group. A super-hydrophobic coating layer formed by the super-hydrophobic coating composition keeps a long-term effective super-hydrophobic property; the coating composition adopts a binding material so that the binding force between a super-hydrophobic structure and a matrix is enhanced and the protection effectof the coating layer is enhanced; a processing technology of the super-hydrophobic coating layer is simple and convenient and large-area construction is facilitated.

The invention discloses a nano-carbon material dispersion liquid, and a preparation method and preparation equipment of the nano-carbon material dispersion liquid, and aims to prepare a nano-carbon material dispersion system which contains uniformly distributed nano-carbon particles and is stable. The dispersion liquid comprises the following components in percentage by mass: 0.5 to 20 percent ofthe nano-carbon material, and the balance of dispersion solvent. The preparation method comprises the steps of pre-dispersion and high-pressure dissociation dispersion. The preparation equipment consists of pre-dispersion equipment and high-pressure dissociation dispersion equipment. Compared with the prior art, a high-pressure dispersion method is introduced into the preparation method, and morethan two paths of 50 to 500MPa high-pressure liquid flows are guided to one place and converged together to ensure that the high-pressure liquid flows generate violent collision to fully dissociate the nano-carbon material in the high-pressure liquid flows, so that the nano-carbon material is uniformly distributed in the dispersion solvent to achieve a more effective dispersion effect of the nanomaterial; besides, the obtained nano-carbon material dispersion liquid is better in dispersion effect, can exist stably for a long time, and is convenient to store and transport.

The invention discloses a preparation method of super-strong high temperature-resistant chlorinated polyvinyl chloride tubes, which is characterized in that the tubes are made by the following steps: 75 to 100 portions of chlorinated polyvinyl chloride resin, 0 to 25 portions of vinyl chloride resin, 3 to 10 portions of ABS, 1 to 8 portions of acrylic acid resin, 3 to 8 portions of bismaleimides, 1 to 5 portions of plasticizing accelerator, 1 to 5 portions of compatibilizer, 10 to 25 portions of engineering plastics, 1 to 3 portions of lubricant, 1 to 5 portions of nanometer materials, 4 to 8 portions of stabilizing agent, 2 to 15 portions of filler, 0 to 1 portion of cross-linking agent, 1 to 5 portions of processing modifier and 3 to 10 portions of impact modifier are mixed and blended according to weight proportion, and then extruded by a mould. Compared with the prior art, the super-strong high temperature-resistant chlorinated polyvinyl chloride tubes has the advantages of being high in vicat softening point, being capable of meeting the high-temperature requirement of more than 120 DEG C, and having good anti-aging performance, antiflaming and insulation performance, and compression resistance, and long service life.