摘要:
The invention relates to glass strands and glass strand structures coated with an electrically conducting coating composition which comprises (as % by weight of solid matter): 6 to 50% of a film-forming agent, preferably 6 to 45%, 5 to 40% of at least one compound chosen from plasticizing agents, surface-active agents and/or dispersing agents, 20 to 75% of electrically conducting particles, 0 to 10% of a doping agent, 0 to 10% of a thickening agent, 0 to 15% of additives. The invention also relates to the electrically conducting coating composition used to coat the said strands and strand structures, to their process of manufacture and to the composite materials including these strands or strand structures.Application to the preparation of structures and composite materials which can be heated by the Joule effect or which can be used for electromagnetic shielding.
摘要:
A facile method to produce covalently bonded graphene coating on various solid substrates is disclosed in the present invention. According to one embodiment, a combination of graphite, graphene oxide or graphene and silicon compound with or without a metal containing compound in an air free environment is processed at high temperatures to produce covalent carbide bonding among graphene layers and between graphene and substrate surface.
摘要:
Methods for growing carbon nanotubes on glass substrates, particularly glass fiber substrates, are described herein. The methods can include depositing a catalytic material or a catalyst precursor on a glass substrate; depositing a non-catalytic material on the glass substrate prior to, after, or concurrently with the catalytic material or catalyst precursor; and exposing the glass substrate to carbon nanotube growth conditions so as to grow carbon nanotubes thereon. The glass substrate, particularly a glass fiber substrate, can be transported while the carbon nanotubes are being grown thereon. Catalyst precursors can be converted into a catalyst when exposed to carbon nanotube growth conditions. The catalytic material or catalyst precursor and the non-catalytic material can be deposited from a solution containing water as a solvent. Illustrative deposition techniques include, for example, spray coating and dip coating.
摘要:
The specification describes a method for selectively depositing carbon nanotubes on the end face of an optical fiber. The end face of the optical fiber is exposed to a dispersion of carbon nanotubes while light is propagated through the optical fiber. Carbon nanotubes deposit selectively on the light emitting core of the optical fiber.
摘要:
A fiberglass material contains glass fibers having graphite evenly distributed thereon. The graphite provides a coating that makes the fiberglass material substantially free of static electricity. Suitable graphite content of the fiberglass material is about 0.25 wt % to about 0.50 wt %, or about 0.25 wt % to about 1.0 wt %, or about 0.8 wt % of dry weight of the glass fibers. The graphite used may be synthetic material or natural material substantially free of silica. Other components of the fiberglass material may include de-dusting oil.
摘要:
A composite, contains substrate fibers, and carbon ion exchanger, on the substrate fibers. The fiber provides a support to the carbon ion exchanger, resulting in excellent mechanical properties, compared to carbon fiber ion exchangers.
摘要:
This invention is a strand of silicate glass fibers with a carbon skin or sheath around each glass fiber of the strand. The invention uses hydrocarbon pyrolysis with silicate fiber glass manufacturing to produce fibers using conventional melt-bushing technology. The formation of a carbon skin or sheath on the silicate glass fibers offers numerous advantages. For example, pyrolyzing hydrocarbons is endothermic. Heat is removed in the process and fibers are cooled faster. This helps to achieve higher throughput.
摘要:
An optical fiber is provided with a vitreous carbon coating by the pyrolysis of propadiene promoted by the retained heat of the fiber immediately after it has been drawn from preform.
摘要:
Heating means in a vapor deposition chamber includes a plurality of electrical contacts. Each contact is formed by a receptacle containing mercury through which the filament substrate passes. To facilitate threading of the filament, the receptacle bottom wall is formed from a foraminous material.
摘要:
Processes for depositing functionalized nanoparticles upon a non-conductive substrate are disclosed herein. The processes may include the step of aerosolizing one or more particles into suspension within a gas, each of the one or more particles comprising functionalized nanoparticles having an electric charge. The processes may include the step the step of attracting the one or more particles onto a non-conductive substrate by a static electric charge opposite of the electric charge, wherein at least portions of the non-conductive substrate are having the static electric charge. The processes may include the step of depositing the functionalized nanoparticles onto the non-conductive substrate.