BURNING METHOD OF CARBON FIBERS AND BURNING METHOD OF CARBON FIBER REINFORCED RESIN MIXTURE

摘要

PURPOSE: To effectually and economically burn carbon fibers, mixtures of carbon fibers and matrix resin, and cured products of the mixtures by adding a compound containing one kind or more of metals selected from a group containing alkali metals, alkali rare earth metals, and transition metals by a specific amount to carbon fibers. ;CONSTITUTION: A compound containing one kind or more of metals selected from a group comprising alkali metals, alkali earth metals, and transition metals is added to carbon fibers by 100ppm or more calculated in terms of the metal element. For adding metal or a metal compound to an article to be burned, a compound of the metal with a hydroxyl group and various metal salts such as acetic acid salts is sprayed as an aqueous solution or in the state of a water dispersion. In order to minimize any danger of a burning furnace, a weak alkali metal compound is preferably used thereamong. Hereby, carbon fibers or a carbon fiber reinforced resin mixture are economically and effectually burned in a short time.;COPYRIGHT: (C)1994,JPO&Japio