Abstract:
Polymeric composites and methods for preparing the composites are described herein. The polymeric composites can comprise a polymer, an inorganic filler, and a plurality of short length fibers. The polymer in the composites can include homopolymers and copolymers and can also include plastics, resins, elastomers, thermoplastics, thermosets, and hot melts. The inorganic filler can be fly ash. The short length fibers can have an average length of 650 μm or less. Methods for making the polymeric composites are also described.
Abstract:
A nanocomposite including an array of extended length fibers with nanofibers oriented in transverse relation to the extended length fibers. The nanofibers are mechanically interlocked with the extended length fibers using a connecting agent concentrated at contact locations between the extended length fibers and the nanofibers without saturating the composite. The resultant composite of fibers and connecting agent is characterized by significant internal porosity with an internal void volume not occupied by the connecting agent.
Abstract:
A masterbatch composition of elastomer and from 20 to 100 parts per hundred parts elastomer of fibrous micropulp wherein the micropulp has fibers with a volume weighted average fiber length of from 20 to 200 micrometers as measured by laser diffraction, a relative specific surface area of from 30 to 600 square meter per gram as measured by nuclear magnetic resonance and the fibers selected from the group consisting of aromatic polyamide, aromatic copolyamide, polyacrylonitrile and polyazole.
Abstract:
The present invention provides a resin composition for a radar cover. The resin composition includes carbon nanotubes and a polymer resin. The resin composition does not interfere with the transmission of signals from a radar while protecting the radar from the surroundings.
Abstract:
A glass fiber-reinforced polyamide 66 resin composition with a high tensile strength of 260 MPa or more and a method of manufacturing the same are provided. The method of manufacturing the composition includes that 27.2 to 49% by weight of a polyamide 66 resin, 0.2 to 2% by weight of a dye mixture, 0.2 to 2% by weight of a compatibilizer, 0.1 to 3% by weight of an antioxidant, 0.1 to 3% by weight of a lubricant and 50 to 70% by weight of a glass fiber chopped strand are mixed in a twin screw extruder, the materials are extruded in the form of a strand by an extrusion die, and cooled to obtain a pellet-type glass fiber-reinforced polyamide 66 resin composition. The glass fiber-reinforced polyamide 66 resin composition is suitable for vehicular engine mounts due to excellent mechanical strength, and for parts requiring physical properties.
Abstract:
A fluororubber composition comprising 1 to 100 parts by weight of a needle-like filler or fibrous filler having an average particle diameter of 5 μm or less, an average particle length of 40 to 60 μm, and an aspect ratio of 10 to 12, based on 100 parts by weight of fluororubber. A fluororubber vulcanization-molded product obtained from the fluororubber composition has resistance against deformation due to the shape effect of the filler, and thereby can suppress the deformation of the oil seal sliding surface towards the sliding direction. More specifically, the fluororubber vulcanization-molded product can achieve less friction, while maintaining sealing properties by increasing the amount of oil pumping, from the initial use of an oil seal to after the abrasion of the oil seal.
Abstract:
The invention is directed to swellable seals and their use. In accordance with the invention there is provided an elastomeric seal for sealing bore holes and the like comprising a fluid-swellable elastomer composition, which comprises an elastomer matrix, at least one fluid-soluble compound and at least one type of fiber.
Abstract:
Polymeric composites and methods for preparing the composites are described herein. The polymeric composites can comprise a polymer, an inorganic filler, and a plurality of short length fibers. The polymer in the composites can include homopolymers and copolymers and can also include plastics, resins, elastomers, thermoplastics, thermosets, and hot melts. The inorganic filler can be fly ash. The short length fibers can have an average length of 650 μm or less. Methods for making the polymeric composites are also described.
Abstract:
The present invention relates to a preparation method for an electromagnetic wave shield composite material and the electromagnetic wave shield composite material prepared by the method. The present invention uses a highly conductive carbon fiber prepared by electroless and electrolytic continuous processes, and thus is suitable for an EMI shield due to having an excellent conductivity and low surface resistance, and is capable of providing the electromagnetic wave shield composite material having an excellent productivity and economic value. Furthermore, the electromagnetic wave shield composite material of the present invention can be used for blocking electromagnetic waves by being inserted into a cell phone cover and a cell phone pouch, and can also be applied to a bracket for protecting an LCD of a portable display product.
Abstract:
A thermally conductive sheet having good thermal conductivity in the thickness direction and a method for producing a thermally conductive sheet. A thermally conductive sheet having a surface with an L* value in a L*a*b color system of 29 or more and 47 or less is obtained by preparing a thermally conductive composition comprising a curable resin composition, thermally conductive fibers, and thermally conductive particles, extrusion-molding the thermally conductive composition to obtain a columnar cured product, and cutting the columnar cured product in a direction almost perpendicular to a length direction of a column to a predetermined thickness.