Abstract:
An insulating composite for powder transmission and distribution containing a continuous reinforcing fiber embedded in a thermoset resin, wherein the thermoset resin is a reaction product of a curable epoxy resin composition comprising (a) at least one bisphenol A- type epoxy resin, (b) at least one oxazolidone ring containing epoxy resin, and (c) at least one anhydride hardener and wherein the curable epoxy resin composition has a viscosity of 6,000 millipascals.second or less at 25°C; and a process for preparing the insulating composite.
Abstract:
An umbilical for the transfer of fluids and/or electric current/signals, particularly between the sea surface and equipment deployed on the sea bed (e.g., in deep waters), is provided. The umbilical contains a plurality of elongated umbilical elements (e.g., two or more), such as a channel element, fluid pipe, electric conductor/wire (e.g., optic fiber cable), armoring wire, etc., enclosed within an outer sheath (e.g., plastic sheath). The umbilical also contains at least one reinforcing rod formed from a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix. The present inventors have discovered that the degree to which the ravings are impregnated with the thermoplastic polymer matrix can be significantly improved through selective control over the impregnation process, and also through control over the degree of compression imparted to the ravings during formation and shaping of the rod, as well as the calibration of the final rod geometry. Such a well impregnated rod has a very small void fraction, which leads to excellent strength properties for reinforcing the umbilical elements.
Abstract:
Provided is a wholly aromatic liquid crystal polyester resin compound. The wholly aromatic liquid crystal polyester resin compound includes inorganic filler having low conductivity, low temperature resistance, and high mechanical strength to realize superior insulation properties, temperature resistance, and mechanical strength.
Abstract:
Electrical insulation system being a fiber-reinforced composite system which is suitable to be used in gas-insulated switchgear applications, comprising a solidified polymer composition and a reinforcing fiber, wherein said fiber is selected from polyethylene naphthalate fibers, polybutylene naphthalate fibers, from fibers being a copolyester of bisphenol A and/or bisphenol F with naphthalene dicarbonic acid, from fibers being a copolyester of hydroxy-benzoic acid and hydroxy-naphthoic acid, or from a mixture of these fibers, and the use of the composite system especially in the production of gas-insulated switchgear applications.
Abstract:
Fiber-reinforced composite system which is suitable to be used as an electrical insulation system, comprising a solidified polymer composition and a reinforcing fiber, wherein that said fiber is selected from polyethylene naphthalate fibers, poly- butylene naphthalate fibers, from fibers being a copolyester of bisphenol A and/or bisphenol F with naphthalene dicarbonic acid, from fibers being a copolyester of hydroxy-benzoic acid and hydroxy-naphthoic acid, from poly(p-phenylene-2,6-benzobis- oxazole) fibres, or from a mixture of these fibers, and the use of the composite system especially in the production of electrical components.
Abstract:
An insulator for an electric power line. One embodiment comprises a composite body having at least two connectors and a housing. The composite body is coupled to a conductor. The composite body is located inside the housing. In one embodiment the composite body includes a hollow core wherein an insulating material is placed within the hollow core, a barrier layer is placed within the hollow core and at least one of the ends is provided with a connector.
Abstract:
A composite material includes a plurality of fibers embedded in a metal matrix. The composite material further includes a plurality of particles disposed in the metal matrix. At least 25% of the fibers contact or are spaced less than 0.2 micrometers from an adjacent fiber within the metal matrix.
Abstract:
A composition useful for molding electrical components is prepared by melt blending specific amounts of components including a polyamide, a poly(phenylene ether)-polysiloxane block copolymer reaction product including a poly(phenylene ether) and a poly(phenylene ether)-polysiloxane block copolymer, a flame retardant including a metal dialkylphosphinate, melamine polyphosphate, and zinc borate, and glass fibers. The use of a poly(phenylene ether)-polysiloxane block copolymer reaction product rather than a poly(phenylene ether) alone provides improved surface resistivity without sacrificing flame retardancy.
Abstract:
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Verbundisolatoren, bei welchen ein tragendes Bauteil mit einer Beschirmung aus Siliconkautschuk versehen wird, dadurch gekennzeichnet, dass die Vernetzung des Siliconkautschuks durch UV-Bestrahlung initiiert wird.
Abstract:
Le procédé de fabrication d'un isolateur composite (1) à très haute, haute ou moyenne tension, comprenant une âme (2) isolante en matière synthétique renforcée de fibres de verre à base d'un mélange d'une résine et d'un durcisseur et une enveloppe (3) en matière élastomère vulcanisant à haute température et entourant ladite âme (2), comprend au moins les étapes consistant à; choisir (41) une composition de mélange de telle manière à obtenir une température de transition vitreuse pour ladite matière synthétique qui est supérieure à la température de vulcanisation de ladite matière élastomère, et vulcaniser (45) ladite enveloppe (3) en matière élastomère sur ladite âme (2) en matière synthétique.