Abstract:
Transparent, impact-resistant, anti-icing coatings are disclosed. In some variations, a transparent anti-icing coating comprises: a continuous matrix of a hardened material; asymmetric templates that inhibit wetting of water, wherein the asymmetric templates have a length scale from about 10-300 nanometers; porous voids surrounding the asymmetric templates, wherein the porous voids have a length scale from about 15-500 nanometers; and nanoparticles that inhibit heterogeneous nucleation of water, wherein the nanoparticles have an average size from about 5-50 nanometers. Disclosed coatings have transparencies of 90% or higher light transmission. These coatings utilize lightweight and environmentally benign materials that can be rapidly formed into coatings. A uniform distribution of particles and asymmetric templates throughout the coating allows it to be abraded, yet retain its anti-icing function as well as transparency. Therefore if the surface is damaged during use, freshly exposed surface is identical to that which was removed, for extended lifetime.
Abstract:
A carbon fiber composite material includes the material is made of carbon fibers and a thermoplastic resin; the proportion Y, relative to the total weight of carbon fibers, of carbon fiber bundles for which Mn/(Ln×D) is 8.5×10−1 (mg/mm2) or more, is 30≦Y
Abstract:
A fiber reinforced powder paint provides improved flexural fatigue resistance for composites substrates. Fiber loading in the powder is greater than 40%. Aramid fiber loading in an epoxy based powder paint is exemplified. A composite bow limb coated with the powder paint survives a remarkably greater number of bending cycles before failure when coated with the powder paint.
Abstract:
A conductive thermoplastic resin composition, according to the present invention, comprises a polycarbonate resin and a conductive filler, wherein the conductive filler comprises carbon nanotube-modified glass fibers and/or processed carbon nanotube-modified glass fibers. A conductive thermoplastic resin composition has excellent electrical conductivity, flame retardancy, and mechanical properties.
Abstract:
Polymeric compositions having improved mechanical properties are disclosed. The compositions comprise a cross-linkable polycarbonate resin having a photoactive group derived from a benzophenone, and a reinforcing filler. The composition contains from about 1 wt % to about 70 wt % of the reinforcing filler, which is most desirably in the form of glass fibers. Articles formed from the compositions have improved flexural modulus, flame resistance, and chemical resistance.
Abstract:
The present invention relates to epoxy/nanotube composites. The composites have at least one epoxy resin. The composites also have a plurality of discrete oxidized carbon nanotubes. The nanotubes have an aspect ratio of from about 25 to about 250. The epoxy/nanotube composite may be bonded or adhered to a substrate.
Abstract:
A cross-linkable nitrile rubber composition including 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. The cross-linkable nitrile rubber composition able to give cross-linked rubber excellent in tensile stress and low heat buildup can be provided.
Abstract:
A nanospike hybrid carbon black product includes a plurality of carbon black aggregates. Each of the carbon black aggregates has a surface with a plurality of carbon nanospike formed thereon. The carbon nanospikes may each have a length between about 5 nm and 100 nm, and a width between about 5 nm and about 50 nm. A method for manufacturing the nanospike hybrid carbon black product includes the steps of injecting a primary carbon feedstock into a carbon black reactor, and combusting the carbon feedstock under a predetermined high temperature in the carbon black reactor to form carbon black aggregates. A catalyst is then deposited on surfaces of the carbon black aggregates. A secondary carbon feedstock is injected into the carbon black reactor, and reacted with the catalyst to grow carbon nanospikes on the surfaces of the carbon black aggregates.
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:
A boron nitride/resin composite circuit board having high heat dissipation characteristics and high reliability is provided. A boron nitride/resin composite circuit board, including: a plate-shaped resin-impregnated boron nitride sintered body having a plate thickness of 0.2 to 1.5 mm, the plate-shaped resin-impregnated boron nitride sintered body including 30 to 85 volume % of a boron nitride sintered body having boron nitride particles bonded three-dimensionally, the boron nitride particles having an average long diameter of 5 to 50 μm, and 70 to 15 volume % of a resin; and a metal circuit adhered onto both principal planes of the plate-shaped resin-impregnated boron nitride sintered body, the metal circuit being copper or aluminum, wherein: a ratio of a linear thermal expansion coefficient in a plane direction of the resin-impregnated boron nitride sintered body at 40 to 150° C. (CTE1) and a linear thermal expansion coefficient of the metal circuit at 40 to 150° C. (CTE2) (CTE1/CTE2) is 0.5 to 2.0.