Abstract:
An electrically conductive composite material includes carbon nanotubes and graphene nanoplatelets within a polymer matrix. The carbon nanotubes have an average length greater than 10 μm. The graphene nanoplatelets form in the range of 0.005 wt. % to 0.06 wt. % of the composite material. Also provided is a mixture having such a composition, an article comprising such a composite material, and a composite production method.
Abstract:
Fibrous basic magnesium sulfate having excellent acid resistance. A fibrous powder comprising the fibrous basic magnesium sulfate, and an anionic surfactant (A) and a cationic surfactant (B), both coating the surface of the fibrous basic magnesium sulfate.
Abstract:
The purpose of the present invention is to provide a polyester resin composition for a reflection plate having high reflectance and small decrease of reflectance under exposure to heat during production of an LED package or reflow soldering step for mounting, or exposure to heat and light from a light source. A polyester resin composition of the present invention contains: 30-80% by mass of (A) a polyester resin having a melting point or glass transition temperature of 250 °C or more as measured by DSC; 5-30% by mass of (B) a fibrous reinforcing material having an average fiber length (1) of 2-300 µm, an average fiber diameter (d) of 0.05-18 µm and an aspect ratio (1/d) of 2-20, said aspect ratio being a quotient of 1 by d; and 5-50% by mass of (C) a white pigment (with the total of (A), (B) and (C) being 100% by mass).
Abstract:
There is provided a plate-shaped carbon fiber reinforced molding material comprising a thermoplastic resin, carbon fibers (A) and carbon fibers (B), wherein: i) the carbon fibers (A) have fiber lengths ranging from 0.01 mm to less than 3 mm, ii) the carbon fibers (B) have fiber lengths ranging from 3 mm to less than 100 mm, iii) 1.0 A /Ln A A and Ln A are a weight-average fiber length and a number-average fiber length of the carbon fibers (A), respectively, and iv) the carbon fibers (B) are two-dimensionally randomly oriented.
Abstract:
The present invention relates to compositions which are based on long-fiber-reinforced polyamides, a method for the preparation of these compositions, and products obtainable from long-fiber reinforcments that were impregnated with a thermoplastic melt on the basis of PA6 or PA66 or on the basis of copolyamides of PA6 or PA66, the thermoplastic melt containing at least one heat stabilizer combined with at least one ester wax and/or with at least one amide wax.
Abstract:
Provided is a porous plate-shaped filler that can be used as a material for a heat-insulation film having excellent heat insulation performance. In a porous plate-shaped filler 1 having a plate shape, an aspect ratio is 3 or higher, a minimum length is 0.5 to 50 µm, and an overall porosity is 20 to 90%, and the porosity is lower in the circumferential part than in the center part. When this porous plate-shaped filler 1 of the present invention is contained in a heat-insulation film, the infiltration of a matrix into the filler is reduced, and thus the thermal conductivity can be lowered. Therefore, even a thin heat-insulation film can have a greater heat-insulation effect than before.
Abstract:
A cross-linkable nitrile rubber composition comprising a highly saturated nitrile rubber (a) containing α,β-ethylenically unsaturated nitrile monomer units and α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units and having an iodine value of 120 or less, organic staple fiber (b) with an average fiber length of 0.1 to 12 mm, and a polyamine cross-linking agent (c) is provided. According to the present invention, a cross-linkable nitrile rubber composition able to give cross-linked rubber excellent in tensile stress and low heat buildup can be provided.
Abstract:
The present invention relates to a valve member for a dispenser valve for foam products, and in particular for a dispenser valve for polyurethane foam container, comprising a valve member that is moveable relative to a sealing. It also relates to such a dispenser valve and to a foam container. In order to provide alternative materials for valve members, it is proposed according to the invention that the valve member is made of plastic material filled with mineral particles in an amount between 1 % and 60 % by weight. It has been surprisingly found that valve members made of plastic filled with mineral particles in these amounts show improved properties, such as strength and abrasion rates, compared to non-filled plastics and compared to glass-filled plastics.