C01B2202/28

ELECTRICALLY-CONDUCTIVE HEATING ELEMENT
20180014357 · 2018-01-11 ·

A resistive heating element for use in or manufacturing of a component of an aircraft or spacecraft. The resistive heating element includes a sheet made from carbon nanotubes (CNTs) having a length of at least about 5 μ.Math.η, and formed as a nonwoven or composite polymer sheet, having good uniformity. The sheet is made with a basis weight between 1 and 50 grams per square meter (gsm), to provide a resistance value, inversely related to the basis weight, of at least about 0.01 ohms per square (Ω/□), and up to about 100 Ω/□. The CNTs can have an aspect ratio of at least about 1000:1, and at least about 10,000:1 or 100,000:1. The resistance value of the sheet can be controlled by the basis weight of CNTs, the diameter of the CNTs, and the length of CNTs, as well as chemical and mechanical treatments.

Single wall nanotube constructs and uses thereof

The present invention provides soluble single wall nanotube (SWNT) constructs functionalized with a plurality of a targeting moiety and a plurality of one or more payload molecules attached thereto. The targeting moiety and the payload molecules may be attached to the soluble SWNT via a DNA or other oligomer platform attached to the SWNT. These soluble SWNT constructs may comprise a radionuclide or contrast agent and as such are effective as diagnostic and therapeutic agents. Methods provided herein are to diagnosing or locating a cancer, treating a cancer, eliciting an immune response against a cancer or delivering an anticancer drug in situ via an enzymatic nanofactory using the soluble SWNT constructs.

Method for attaching nanomaterials comprising hexagonal lattices to polymer surfaces

The invention is directed to a method for attaching nanomaterials containing hexagonal lattices to polymer surfaces. For example, carbon nanotubes (CNTs) can be attached to polycarbonate, polyethylene, or epoxy surfaces by amination of the polymer surface, functionalization of the surfaces of CNTs with ester groups, and reacting the aminated surface of the polymer with the ester groups of the functionalized surfaces of the CNTs in an organic solvent to chemically bind the CNTs to the polymer surface.

CARBON NANOTUBE-FUNCTIONALIZED REVERSE THERMAL GEL AND METHODS OF FORMING AND USING SAME

Polymers suitable for forming carbon nanotube-functionalized reverse thermal gel compositions, compositions including the polymers, and methods of forming and using the polymers and compositions are disclosed. The compositions have reverse thermal gelling properties and transform from a liquid/solution to a gel—e.g., near or below body temperature. The polymers and compositions can be injected into or proximate an area in need of treatment.

CARBON MATERIAL DISPERSION

The present invention provides a carbon material dispersion in which a carbon material is contained at a high concentration in a liquid medium containing an organic solvent but is unlikely to reaggregate and is stably dispersed, and from which various products, such as an ink capable of forming a coating film having excellent electric conductivity, can be formed. This carbon material dispersion contains a carbon material, an organic solvent, and a polymeric dispersant, wherein the polymeric dispersant is a polymer having 3 to 55% by mass of a constituent unit (1) represented by the following formula (1), wherein R represents a hydrogen atom or the like, A represents O or NH, B represents an ethylene group or the like, R.sub.1 and R.sub.2 each independently represent a methyl group or the like, Ar represents a phenyl group or the like, X represents a chlorine atom or the like, and p represents an arbitrary number of repeating units, and the polymeric dispersant has an amine value of 100 mgKOH/g or less and a number average molecular weight of 5,000 to 20,000.

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Light absorber preform solution and method for making the same

A light absorber preform solution includes a solvent, a plurality of carbon nanotubes entangled with each other to form a network structure, and a plurality of carbon particles in the network structure. The plurality of carbon nanotubes and the plurality of carbon particles are in the solvent.

Carbon nanotube-functionalized reverse thermal gel and methods of forming and using same

Polymers suitable for forming carbon nanotube-functionalized reverse thermal gel compositions, compositions including the polymers, and methods of forming and using the polymers and compositions are disclosed. The compositions have reverse thermal gelling properties and transform from a liquid/solution to a gel—e.g., near or below body temperature. The polymers and compositions can be injected into or proximate an area in need of treatment.

STRUCTURES FORMED FROM HIGH TECHNOLOGY CONDUCTIVE PHASE MATERIALS
20220055293 · 2022-02-24 ·

A method of forming a bulk product includes the step of coating a particulate conductive phase material with a binder phase, and forming the coated conductive phase material into at least one of sheet stock, tape formed into a bulk material. A method of forming a bulk product includes the step of coating a particulate conductive phase material with a binder phase and forming the coated conductive phase material into a bulk material. The conductive phase material includes at least one of two dimensional materials, single layer materials, carbon nanotubes, boron nitride nanotubes, aluminum nitride and molybdenum disulphide (MoS.sub.2). A component is also disclosed.

Method for preparing carbon nanotube dispersion

The present invention relates to a method for preparing a carbon nanotube dispersion, the method including mixing a dispersion solution including a dispersion solvent and a dispersant with carbon nanotubes to prepare carbon nanotube paste, extruding the paste to obtain solid carbon nanotubes, and introducing a second solvent to the solid carbon nanotubes, and homogenizing the carbon nanotubes, wherein the weight ratio of the dispersion solution and the carbon nanotubes is 1:1 to 9:1. According to the present invention, the mixing of a dispersant and carbon nanotubes is increased and the particle size is controlled by a wet method, so that a carbon nanotube dispersion having a viscosity controlled to a low level, excellent resistance properties, and a high concentration, may be provided.

Methods for nondestructive dispersing of carbon nanomaterials in water

A method termed “superacid-surfactant exchange” (S2E) for the dispersion of carbon nanomaterials in aqueous solutions. This S2E method enables nondestructive dispersion of carbon nanomaterials (including single-walled carbon nanotubes, double-walled carbon nanotubes, multi-wall carbon nanotubes, and graphene) at rapidly and at large scale in aqueous solution without a requirement for expensive or complicated equipment. Dispersed carbon nanotubes obtained from this method feature long length, low defect density, high electrical conductivity, and in the case of semiconducting single-walled carbon nanotubes, bright photoluminescence in the near-infrared.