摘要:
A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation.
摘要:
본 발명은 섬유에 함유된 탄소성분과 산화철화합물의 상호작용으로 광(光)의 조사(照射)에 의해 자체적으로 발열할 수 있으면서 항균성을 갖는 항균성 발열 보온 부직포와 이를 사용한 다층구조의 원단에 관한 것이다. 본 발명에 따른 부직포 및 원단은 태양광에 의해 발열하므로 별도의 발열장치가 없어도 발열 및 보온 효과를 얻을 수 있고 보온 유지성이 우수하며, 발열효과를 제공하는 입자가 항균력을 가지므로 부직포 및 원단에 항균 기능이 부여되며, 또한 상기 항균 발열 입자가 방사액 중에 균일하게 분산되어 섬유를 구성하는 수지와 결합하고 있어서 세탁 등의 외력에 의해 섬유로부터 이탈되지 않으므로 장기간 사용하여도 지속적으로 항균 및 발열효과를 제공할 수 있다.
摘要:
The present invention provides, in one embodiment, a nanostructured article. In an embodiment, the nanostructured article includes a first material made from a plurality of intermingled nanotubes placed on top of one another to form a continuous structure with sufficient structural integrity to be handled. The nanostructured article can also include a second material made from a plurality of nanotubes forming a layer situated on a surface of the first material. The second material, in an embodiment, has a nanotube density lower than the nanotube density of the first material. The nanostructured article further a layer of ordered pyrolytic carbon between the first material and the second material to enhance the bond and structural integrity between the first material and the second material, as well as enhancing the electrical and thermal conductivity between the first and second materials. A process for forming the nanostructured article is also provided.
摘要:
The disclosed materials, methods, and apparatus, provide novel ultra-high temperature materials (UHTM) in fibrous forms/structures; such "fibrous materials" can take various forms, such as individual filaments, short-shaped fiber, tows, ropes, wools, textiles, lattices, nano/microstructures, mesostructured materials, and sponge-like materials. At least four impmiant classes of UHTM materials are disclosed in this invention: (1) carbon, doped-carbon and carbon alloy materials, (2) materials within the boron-carbon-nitride-X system, (3) materials within the silicon-carbon-nitride-X system, and (4) highly-refractory materials within the tantalum-hafniumcarbon- nitridc-X and tantalum-hafnium-carbon-boron-nitride-X system. All of these material classes offer compounds/mixtures that melt or sublime at temperatures above 1800 degrees Celsius -and in some cases are among the highest melting point materials known (exceeding 3000 degrees Celsius). In many embodiments, the synthesis/ fabrication is from gaseous, solid, semi-solid, liquid, critical, and supercritical precursor mixtures using one or more low molar mass precursor(s), in combination with one or more high molar mass precursor(s).
摘要:
A non-weft, unidirectional fabric is provided that includes a plurality of substantially parallel reinforcement fiber bundles. The reinforcement fiber bundles have a first surface and an opposing second surface. The non-weft, unidirectional fabric further includes at least one of a non-woven veil bonded to at least one surface and one or more bands of sprayed adhesive spanning across at least a portion of the width of one of the first and second surfaces of the plurality of substantially parallel reinforcement fibers.
摘要:
본 발명은 탄소섬유 펠트 제조방법 및 이를 이용한 단열재의 제조방법으로, 구체적으로는 탄소섬유 매트 직교 장치를 이용하여 제조함으로써 면밀도가 균일하고 탄소섬유의 배향성이 향상되어 별도의 개섬, 소면 공정 없이 탄소섬유 펠트를 제조하여 공정 수율 및 단열 성능이 종래에 비해 우수한 탄소섬유 펠트를 제조하는 방법 및 이를 이용한 단열재의 제조방법에 관한 것이다.
摘要:
Formaldehyde-free binder compositions are described that include an aldehyde or ketone, an organic anhydride, an alkanol amine, and a nitrogen-containing salt of an inorganic acid. The binder compositions may be applied to fibers, such as glass fibers, to make formaldehyde-free, fiber-reinforced composites. Methods of making fiber- reinforced composites are also described, where such methods may include mixing an alkanol amine with an organic anhydride to make a first mixture, and adding a reducing sugar to the first mixture to make a second mixture. A nitrogen-containing salt may be added to the second mixture to make a binder composition, which may be applied to fibers to form a binder-fiber amalgam. The amalgam may be heated to cure the binder composition and form the fiber-reinforced composite.