A fabric containing nanotubes which is impervious to viruses, bacteria, and other pathogens; which is self-sterilizing and reusable; and a method of producing the same are disclosed. The fabric can be used to construct facemasks, gloves, protective suits, protective habitats, continuous air filtration/sterilization systems or any other type of protective clothing or structure. The fabric may have integrated temperature monitoring sensors. The fabric may be made into patches which may be integrated into existing articles of clothing. When connected to an electrical power source, either via built-in electrical connections or by induction, the active layer which is one of the components of the fabric will heat to a temperature high enough to eliminate potential biological contamination from viruses, bacteria and other microbial threats. Combining the CNT active layer with an insulating layer will allow a garment to be continuously worn or used without needing removal during multiple sterilization cycles.
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
D06M 16/00 - Biochemical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. enzymatic
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
2.
Metal matrix composite comprising nanotubes and method of producing same
A metal matrix composite comprising nanotubes; a method of producing the same; and a composition, for example a metal alloy, used in such composites and methods, are disclosed. A method for continuously infiltrating nanotube yarns, tapes or other nanotube preforms with metal alloys using a continuous process or a multistep process, which results in a metal matrix composite wire, cable, tape, sheet, tube, or other continuous shape, and the microstructure of these infiltrated yarns or fibers, are disclosed. The nanotube yarns comprise a multiplicity of spun nanotubes of carbon (CNT), boron nitride (BNNT), boron (BNT), or other types of nanotubes. The element that infiltrates the nanotube yarns or fibers can, for example, be alloyed with a concentration of one or more elements chosen such that the resulting alloy, in its molten state, will exhibit improved wetting of the nanotube material.
C22C 49/14 - Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
C22C 47/04 - Pretreatment of the fibres or filaments by coating, e.g. with a protective or activated covering
C22C 47/08 - Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
C22C 47/14 - Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
C22C 49/02 - Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
D02G 3/04 - Blended or other yarns or threads containing components made from different materials
D04C 1/02 - Braid or lace, e.g. pillow-laceProcesses for the manufacture thereof made from particular materials
The present disclosure provides systems and methods for producing a volume of substantially all armchair nanotubes of a preselected chirality for fabricating yarn consisting of substantially all metallic conducting armchair tubes. The systems and methods can be used for the synthesis of (10,10), (11,11), and (12,12) metallic armchair carbon nanotubes and potentially other chiralities. The elements of the present disclosure include: (i) a carbon source that provides substantial numbers of ethylene and acetylene radicals in combination with a high population of ethylene groups and a small amount of methane, (ii) a hydrogen to carbon ratio sufficient to “passivate” all other chiral growth sites to a higher degree than armchair growth sites, and (iii) a CVD process that can be tuned to create a well-controlled population of catalyst with tight diameter distribution with sparse modal distribution that falls within a range of the desired single wall diameters.
Fiber emitters, such as carbon nanotube (CNT) yarns, are used to create infrared (IR) transmitters that can operate at high data rates, can shift spectral response, and can emit polarized light, for example by alignment of the fiber emitters in close proximity and in parallel directions. These fiber emitters can, for example, be used in patches that can be bonded to fabric or to an object, or can be woven into fabric during fabrication of a textile. The fiber emitters can be used in a variety of methods, including for friend or foe identification, communications, and identification of objects.
A metal matrix composite comprising nanotubes; a method of producing the same; and a composition, for example a metal alloy, used in such composites and methods, are disclosed. A method for continuously infiltrating nanotube yarns, tapes or other nanotube preforms with metal alloys using a continuous process or a multistep process, which results in a metal matrix composite wire, cable, tape, sheet, tube, or other continuous shape, and the microstructure of these infiltrated yarns or fibers, are disclosed. The nanotube yarns comprise a multiplicity of spun nanotubes of carbon (CNT), boron nitride (BNNT), boron (BNT), or other types of nanotubes. The element that infiltrates the nanotube yarns or fibers can, for example, be alloyed with a concentration of one or more elements chosen such that the resulting alloy, in its molten state, will exhibit improved wetting of the nanotube material.
