摘要:
A robot according to this invention includes a driving mechanism, a first arm rotatably connected to the driving mechanism, a second arm rotatably connected to the first arm, and an X-shaped end effector rotatably disposed at the distal end of the second arm. Of the four distal ends of the end effector, two distal ends include holding units which can hold substrates in one direction, and the remaining two distal ends include holding units which can hold substrates in the opposite direction.
摘要:
A one or two layer coating system has been developed for plastic substrates. The one coating system low reflective layer consists of a fluorinated copolymer having the formula: VF2/TFE/HFP, VF2/HFP or VF2/TFE/PMVE. In the two coating system, the upper coating layer consists of TFE/HFP, VF2/TFE/HFP, or TFE/Perfluorodioxole, and the lower coating layer consists of VF2/TFE/HFP, VF/TFE/HFP, VAc/TFE/HFIB, or TFE graft to PVOH.
摘要:
A polyacetal composition is provided for use in plastic-plastic wear applications, said composition containing about 85 to 99 weight percent polyacetal, about 0 to 5 weight percent polytetrafluoroethylene fibers, about 0.5 to 5 weight percent ethylene methyl acrylate copolymer, and about 0.5 to 5 weight percent of at least one lubricant. The compositions are particularly useful in forming shaped articles for use especially in conveyor chain applications and gear applications.
摘要:
Chemically modified carbon nanotubes composed of carbon nanotubes (such as multiwall carbon nanotubes) having carboxyl groups on the surface thereof and polymeric aniline (such as 3- to 300-meric aniline) bonding thereto through the amide linkage. The chemically modified carbon nanotubes exhibit good affinity with organic solvents and readily disperse into organic solvents.
摘要:
The fine carbon fiber obtained by pulverizing vapor grown fine carbon fiber, each fiber including a hollow space extending along its axis, and having an outer diameter of 1 to 1,000 nm, an aspect ratio of 5 to 1,000, and a BET specific surface area of 2 to 2,000 m2/g, wherein the average interlayer distance (d002) is 0.345 nm or less, and the ratio of the peak height (Id) of the band (e.g. 1,341 to 1,349 cm−1) in a Raman scattering spectrum to that of the peak height (Ig) of the band (e.g. 1,570 to 1,578 cm−1) (Id/Ig) is 0.1 to 2, a bending angle of 30° or less with respect to the axis; a composite material comprising the fine carbon fiber and a resin serving as a matrix, wherein the fine carbon fiber is oriented in one direction through, application of an external force; and a production method and use thereof. The linear fine carbon fiber of the present invention exhibits excellent dispersibility in a matrix and is readily oriented by application of an external force, and therefore, enables to produce a composite material, wherein merely the carbon fiber is or both the fine carbon fiber and the matrix resin are oriented in one direction.
摘要:
Incorporation into polyacetal of 0.01-15 weight percent of certain epoxy-containing polymer compounds, oxazolyl-containing monomer and polymer compounds, and/or styrene acrylonitrile graft polymer compounds yields polyacetal compositions having excellent tensile strength after long-term aging and also after long-term aging in grease. The compositions are useful in automotive and electrical/electronic applications.
摘要:
A fine carbon fiber having linearity, each fiber filament of the carbon fiber having a bending angle of 30° or less with respect to the longitudinal direction of the fiber filament, and including a hollow space extending along its axis, and having an outer diameter of 1 to 1,000 nm, an aspect ratio of 5 to 1,000, and a BET specific surface area of 2 to 2,000 m2/g, wherein the average interlayer distance (d002) of the carbon fiber at a (002) plane is 0.345 nm or less as measured by means of X-ray diffractometry, and the ratio of the peak height (Id) of the band at 1,341 to 1,349 cm−1 in a Raman scattering spectrum of the carbon fiber to that of the peak height (Ig) of the band at 1,570 to 1,578 cm−1 in the spectrum (Id/Ig) is 0.1 to 2. The fiber exhibits excellent dispersibility in a matrix.
摘要:
A robot according to this invention includes a driving mechanism, a first arm rotatably connected to the driving mechanism, a second arm rotatably connected to the first arm, and an X-shaped end effector rotatably disposed at the distal end of the second arm. Of the four distal ends of the end effector, two distal ends include holding units which can hold substrates in one direction, and the remaining two distal ends include holding units which can hold substrates in the opposite direction.
摘要:
Chemically modified carbon nanotubes composed of carbon nanotubes (such as multiwall carbon nanotubes) having carboxyl groups on the surface thereof and polymeric aniline (such as 3- to 300-meric aniline) bonding thereto through the amide linkage. The chemically modified carbon nanotubes exhibit good affinity with organic solvents and readily disperse into organic solvents.
摘要:
A porous material comprising vapor grown carbon fiber in an amount of 10 to 90 mass %, fiber filaments of the carbon fiber forming a three-dimensional network and having a diameter of 1 to 1,000 nm, an aspect ratio of 5 to 15,000, a specific surface area (by BET method) of 2 to 2,000 m2/g, and the ratio of the intensity of the peak at 1,360 cm−1 in a Raman scattering spectrum of the carbon fiber to that of the peak at 1,580 cm−1 in the spectrum(I1360/I1580) is 0.1 to 2.0, wherein the porosity of the porous material (V/V0) is 0.50 to 0.99 and a specific surface area is 5 to 1,000 m2/g; and a production method and use thereof. The vapor grow carbon fiber impregnated in the porous material of the present invention does not contain aggregates and a three-dimensional network is formed between the fiber filaments, wherein length of each of the fiber filaments is maintained. Therefore, the vapor grown carbon fiber enables to readily produce a composite material (porous material), in which even a small amount of addition of vapor grown carbon fiber can exhibit sufficient effect.