CORE FOR COMPOSITE MATERIAL SANDWICH PANEL, COMPOSITE MATERIAL SANDWICH PANEL AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide the core for a composite material sandwich panel manufactured using no expensive equipment, the composite material sandwich panel and its manufacturing method.;SOLUTION: A nonwoven fabric comprising fibers or yarns made of a synthetic resin, which has a melting point higher than the molding temperature of a matrix resin, is held between at least two core materials, wherein a low density imparting filler is included in the matrix resin, on a mold and a prepreg comprising a fiber reinforced plastic is arranged at least on the almost whole region of one side thereof. The whole is covered with a bag film to be made airtight and heated while evacuating the bag film to be molded integrally.;COPYRIGHT: (C)2005,JPO&NCIPI