| 摘要 |
<p>PURPOSE:To obtain a composite material that is useful for vehicles, automobiles, aircrafts, sports goods, etc., lightweight, and high in strength, by laminating a prepreg on the surface of a phenolic resin foamed body as a core, and reacting the prepreg to be hardened. CONSTITUTION:A prepreg 2 consisting of fibers and a thermosetting binder is laminated on the surfaces of a phenolic resin foamed body (preferably having a density of 50-150kg/cm<2>) 1 as a core, the prepreg 2 is then covered with a film bag 3, and a vacuum is applied into the core and the prepreg, and a pressure is applied onto the film bag while they are heated thereby reacting and hardening the prepreg to obtain the intended material.</p> |
