To improve the impact resistance of carbon fiber reinforced plastic with its good properties maintained by arranging a protective layer on the surface of a backing which is made of the reinforced plastic and whose tensile elongation at break is specified.
A carbon fiber reinforced plastic member has a backing made of carbon fiber reinforced plastic and a protective layer arranged on the surface of the backing. The tensile elongation at break at least in one direction of the reinforced plastic is more than 1.3%. An epoxy resin is used preferably as the matrix resin of the backing, and the protective layer preferably consists substantially of an organic polymer or glass fiber reinforced plastic. The organic polymer means polyester, aramide, polyimide, poly(ether ether ketone), etc. The thickness of the protective layer is preferably 1/5 or less, more preferably 1/10 or less. of that of the backing.
HIROSE TAKEHIKO
NOGUCHI KENICHI
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