Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

30 results about "Buckypaper" patented technology

Buckypaper is a thin sheet made from an aggregate of carbon nanotubes or carbon nanotube grid paper. The nanotubes are approximately 50,000 times thinner than a human hair. Originally, it was fabricated as a way to handle carbon nanotubes, but it is also being studied and developed into applications by several research groups, showing promise as vehicle armor, personal armor, and next-generation electronics and displays.

Catalytic electrode with gradient porosity and catalyst density for fuel cells

A membrane electrode assembly (110) for a fuel cell (100) comprising a gradient catalyst structure (120 or 140) and a method of making the same. The gradient catalyst structure (120 or 140) can include a plurality of catalyst nanoparticles, e. g. , platinum, disposed on layered buckypaper. The layered buckypaper can include at least a first layer and a second layer and the first layer can have a lower porosity compared to the second layer. The gradient catalyst structure (120 or 140) can include single-wall nanotubes, carbon nanofibers, or both in the first layer of the layered buckypaper and can include carbon nanofibers in the second layer of the layered buckypaper. The membrane electrode assembly (110) can have a catalyst utilization efficiency of at least 0. 35 gcat / kW or less.
Owner:FLORIDA STATE UNIV RES FOUND INC

Catalytic electrode with gradient porosity and catalyst density for fuel cells

ActiveUS20110008705A1Maximize three-phase reaction coefficientHigh catalyst utilization rateMaterial nanotechnologyNanostructure manufacturePorosityFiber
A membrane electrode assembly (MEA) for a fuel cell comprising a gradient catalyst structure and a method of making the same. The gradient catalyst structure can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on layered buckypaper. The layered buckypaper can include at least a first layer and a second layer and the first layer can have a lower porosity compared to the second layer. The gradient catalyst structure can include single-wall nanotubes, carbon nanofibers, or both in the first layer of the layered buckypaper and can include carbon nanofibers in the second layer of the layered buckypaper. The MEA can have a catalyst utilization efficiency of at least 0.35 gcat / kW or less.
Owner:FLORIDA STATE UNIV RES FOUND INC

Preparation method of carbon nanotube (CNT) enhanced SiC based nano composite material film

ActiveCN104291826AExcellent thermal and electrical conductivityHigh volume contentBuckypaperFiltration
The invention discloses a preparation method of a carbon nanotube (CNT) enhanced SiC based nano composite material film. The preparation method comprises the following steps: dispersing CNTs, B4C micro-powder and elemental silicon powder into water to prepare a suspension liquid, taking TritonTM X-100 as a dispersing agent, then performing pressure filtration on the suspension liquid by using a pressure filtration device, soaking a CNTs Buckypaper preform obtained by virtue of pressure filtration in a thermoplastic phenolic resin solution, and then sequentially performing soft curing, hard curing and post-curing to obtain a curing sample; and then carbonizing the curing sample under the protection of nitrogen, and finally sintering to obtain the CNT enhanced SiC based nano composite material film. The nano composite material film prepared by using the method disclosed by the invention is high in CNT volume content and good in dispersion performance, has good preferred orientation in arrangement of the CNTs, has good combination between the CNTs and a matrix, and is smooth and warping-free in film surface, uniform and compact in microscopic structure, good in thermal and electrical conduction properties, good in strength and toughness, short in period and low in cost.
Owner:XIAN XINGUI CERAMIC COMPOSITE MATERIAL CO LTD

Film structure for satellite flexible heat radiator and manufacturing method of film structure

InactiveCN106671549AMeet the needs of large-area expandable heat radiatorsLamination ancillary operationsSynthetic resin layered productsBuckypaperOptoelectronics
The invention discloses a film structure for a satellite flexible heat radiator. A graphene layer is arranged on a buckypaper layer, and the graphene layer is coated with a metal copper or aluminum layer. The invention further discloses another two similar film structures and a manufacturing method thereof. According to the film structure, a graphene film is adhered to one end of buckypaper, the back side of the buckypaper is plated with aluminum, then a flexible film can be formed, the heat radiation rate epsilon of the film structure is 0.85, the heat conductivity of the film structure is 300 Wm<1>K<1>, and the thickness of the film is 10-50 [mu]m.
Owner:BEIJING INST OF SPACECRAFT ENVIRONMENT ENG

Film removing liquid and method for removing nitride film layer on surface of cobalt-based hard alloy

ActiveCN109576723AAvoid damageEffective withdrawalCleaning processes and apparatusAlloySolvent
The invention discloses a film removing liquid and method for removing a nitride film layer on the surface of a cobalt-based hard alloy. The film removing liquid does not contain substances such as permanganate, chlorate or hydrogen peroxide, and is composed of sodium hydroxide, sodium percarbonate, tetrasodium iminodisuccinate, sodium lignin sulfonate, graphene oxide powder, isopropanol, ethanol,and deionized water, wherein the deionized water is used as a solvent. According to the film removing liquid, a buckypaper subjected to constant potential cathode polarization treatment is used as aflexible carrier of the film removing liquid, in the film removing process, only the buckypaper absorbing the film removing liquid needs to be used for covering the surface of the nitride film layer,ultrasonic vibration is combined, effective removal of the nitride film layer can be realized, and the damage on the base body cobalt-based hard alloy is extremely weak in the film removing process.
Owner:SUZHOU CHAMPION COATING TECH

A kind of preparation method of carbon nanotube reinforced SIC-based nanocomposite film

ActiveCN104291826BExcellent thermal and electrical conductivityHigh volume contentSemi-permeable membranesBuckypaperFiltration
The invention discloses a preparation method of a carbon nanotube (CNT) enhanced SiC based nano composite material film. The preparation method comprises the following steps: dispersing CNTs, B4C micro-powder and elemental silicon powder into water to prepare a suspension liquid, taking TritonTM X-100 as a dispersing agent, then performing pressure filtration on the suspension liquid by using a pressure filtration device, soaking a CNTs Buckypaper preform obtained by virtue of pressure filtration in a thermoplastic phenolic resin solution, and then sequentially performing soft curing, hard curing and post-curing to obtain a curing sample; and then carbonizing the curing sample under the protection of nitrogen, and finally sintering to obtain the CNT enhanced SiC based nano composite material film. The nano composite material film prepared by using the method disclosed by the invention is high in CNT volume content and good in dispersion performance, has good preferred orientation in arrangement of the CNTs, has good combination between the CNTs and a matrix, and is smooth and warping-free in film surface, uniform and compact in microscopic structure, good in thermal and electrical conduction properties, good in strength and toughness, short in period and low in cost.
Owner:XIAN XINGUI CERAMIC COMPOSITE MATERIAL CO LTD

Composite film having electromagnetic shielding interlayer structure and preparation method thereof

The invention discloses a composite film having an electromagnetic shielding interlayer structure and a preparation method thereof. The composite film is composited by N layers of Buckypapers and N+1layers of PP/PLA/TiO2 films; N is a positive integer; the Buckypapers and the PP/PLA/TiO2 films are alternatively arranged in order, and an outermost layer employs the PP/PLA/TiO2 film. The method employs the following steps: 1) employing a vacuum pumping filtration method for preparing carbon nanotube to the Buckypapers; 2) employing a fusion mixing and hot pressing method to prepare the PP/PLA/TiO2 film; and 3) performing hot pressing on the Buckypaper and the PP/PLA/TiO2 film to obtain the composite film. The composite film uses the Buckypaper having an electromagnetic shielding function asa sandwich layer, the PP/PLA/TiO2 film having the anti-ultraviolet characteristic as a base material, and the advantages of the Buckypaper and the PP/PLA/TiO2 film are complemented. The composite film has excellent mechanical properties (tensile strength and elastic modulus) and heat stability, and has anti-ultraviolet and electromagnetic shielding functions, the application value is increased, and the composite film can be used as an electromagnetic shielding material for construction and transportation.
Owner:TIANJIN POLYTECHNIC UNIV

A kind of preparation method of clad bucky paper composite material with composite metal layer

The invention provides a preparation method for a composite metal layer plated buckypaper composite material. The preparation method comprises the following steps that buckypaper sequentially undergoes acidification, sensitization and activation treatment, and then is added into deionized water for ultrasonic treatment, then a reducing agent is added, uniform mixing is performed to obtain a suspension liquid, then a nickel plating solution is added into the suspension liquid, and the nickel-plated buckypaper is obtained through reaction; mixed powder of tungsten oxide and molybdenum oxide is sprayed on the surface of the nickel-plated buckypaper, water-passing hydrogen is introduced after heating, and the modified nickel-plated buckypaper is obtained through reaction; the modified nickel-plated buckypaper is added into a copper plating solution, then the reducing agent is added, and a precursor of the composite metal layer plated buckypaper composite material is obtained through reaction; and the precursor is reduced under a reducing atmosphere, then sintering is performed, and the composite metal layer plated buckypaper composite material is obtained. The method is beneficial to improving the mechanical property, the electrical property and the service performance of the composite material, has the characteristics of being short in process, simple in equipment and high in safety operability, and enables continuous production to be realized easily.
Owner:CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products