摘要:
A composition for injection molding by which a reactive injection molded article of good mechanical strength and electrical conductivity is prepared is provided.The disclosed is a composition for injection molding which includes carbon fibrous structures in a liquid curing resin composition, at a rate of 0.1-20% by weight based on the total weight of the composition, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers.
摘要:
An recycled composite material is disclosed, which is prepared by using as a raw material a waste composite material which comprises a matrix component and carbon fibrous structures added to the matrix, and adding an additional matrix component which is homogeneous and/or heterogeneous with the matrix of the spent composite material, and then kneading them together; wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers, each carbon fiber having an outside diameter of 15-100 nm, and a granular part, at which the fibers are bound in a state that the carbon fibers extend outwardly therefrom, and wherein the granular part is produced in a growth process of the carbon fibers. The recycled composite material performs much the same with the original composite material, and is produced briefly at a low cost.
摘要:
A thermoplastic elastomeric composition which have an improved compression set and good electrical properties is provided.The disclosed is thermoplastic elastomeric composition which includes 0.1-30 parts by weight of carbon fibrous structures per 100 parts by weight of a thermoplastic elastomer, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers.
摘要:
A composite material includes a matrix and carbon fibrous structures. The carbon fibrous structure has a three dimensional network of carbon fibers, each having an outside diameter of 15-100 nm, and has a granular part with which two or more carbon fibers are tied together such that the carbon fibers extend therefrom, and the granular part being produced in a growth process of the carbon fibers. The additive amount of the carbon fibers is in the range of 0.1 to 30% by weight of total weight of the composite material.
摘要:
An optical transmission system is provided by preparing a two-photon transition medium where efficiency of two-photon transition does not depend on polarization; splitting an optical pulse to be measured into a probe optical pulse and a gate optical pulse by a polarization independent beam splitter; after adding variable delay time to this gate optical pulse, entering the probe optical pulse and the gate optical pulse into a highly efficient two-photon absorption medium so that both of the pulses cross each other, and thereby generating an optical gate function; resolving a spectrum of the transmitted probe optical pulse, and detecting the spectrum by a photodetector; and measuring intensity of electric-field absorption of the probe optical pulse as a function of delay time and a frequency.
摘要:
An optical transmission system is provided by preparing a two-photon transition medium where efficiency of two-photon transition does not depend on polarization; splitting an optical pulse to be measured into a probe optical pulse and a gate optical pulse by a polarization independent beam splitter; after adding variable delay time to this gate optical pulse, entering the probe optical pulse and the gate optical pulse into a highly efficient two-photon absorption medium so that both of the pulses cross each other, and thereby generating an optical gate function; resolving a spectrum of the transmitted probe optical pulse, and detecting the spectrum by a photodetector; and measuring intensity of electric-field absorption of the probe optical pulse as a function of delay time and a frequency.
摘要:
An composite material is disclosed, which includes carbon fibrous structures which are capable of being included in a relatively large amount in the composite material, and which are capable of improving the physical properties, such as electric, mechanical, or thermal properties.The carbon fibrous structure comprises (a) carbon fibrous structures each of which comprises a three dimensional network of carbon fibers, each of the carbon fibers having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part, at which the carbon fibers are bound in a state that the carbon, fibers are extended outwardly therefrom, and wherein the granular part is produced in a growth process of the carbon fibers, and (b) an material other than the carbon fibrous structures, wherein the amount of carbon fibrous structures added is more than 30% and not more than 100% by weight of the total weight of the composite.
摘要:
The disclosed is an electromagnetic wave absorber which is characterized in that ultrathin carbon fibers which show a negative magneto-resistance are contained in the matrix, at a ratio of 0.01-20% by weight based on the total weight. By using a loss material which shows a high electromagnetic waves absorption capability at a small amount, the electromagnetic wave absorber which demonstrates a strong electromagnetic radiation absorption capability without deteriorating the characteristics of the matrix. In addition, this electromagnetic wave absorber has a good formability while being made of a low cost composite material, and is useful as electromagnetic wave absorber for GHz band.
摘要:
A pipe end connector which connects a first tubular member to a second tubular member while securing sealing properties. The pipe end connector is characterized by comprising: a heat-shrinkable tube (4b) made of Teflon (registered trademark) with which the outer surface of an end part of a ceramic tube (1) having a zeolite film attached thereto and the outer surface of an end part of a metallic tube (5) are covered while keeping the end part of the ceramic tube (1) having a zeolite film attached thereto being connected to the end part of the metallic tube (5); and a heat-shrinkable fluororubber tube (3b) which is disposed between the outer surfaces of the ceramic tube (1) having a zeolite film attached thereto and of the metallic tube (5) and the heat-shrinkable tube (4b) and which has solvent resistance and the property of swelling in solvents.
摘要:
The disclosed is an electrically conductive sheet which includes carbon fibrous structures in polymer matrix, at a rate of 0.01-30% by weight based on the total weight of the sheet, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers. The electrically conductive sheet shows a high electrical conductivity while possessing a good film strength.