Prepreg and carbon fiber reinforced composite materials
AssigneeToray Industries, Inc.
InventorsNobuyuki ARAI, Norimitsu Natsume, Kenichi Yoshioka, Junko Kawasaki, Hiroshi Takezaki
Life of this patent
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Abstract
A prepreg containing a carbon fiber [A] and a thermosetting resin [B], and in addition, satisfying at least one of the following (1) and (2). (1) a thermoplastic resin particle or fiber [C] and a conductive particle or fiber [D] are contained, and weight ratio expressed by [compounding amount of [C] (parts by weight)]/[compounding amount of [D] (parts by weight)] is 1 to 1000. (2) a conductive particle or fiber of which thermoplastic resin nucleus or core is coated with a conductive substance [E] is contained.
Claims13
An epoxy resin composition for a carbon fiber reinforced composite material containing an epoxy resin [B], and satisfying at least one of the following conditions (1) and (2),
- wherein the epoxy resin composition is used to make a laminate with conductivity in a thickness direction by being laminated between two sheet like carbon fiber layers containing carbon fiber [A], and the conditions are as follows:
- (1) thermoplastic resin particles or fibers [C] and conductive particles or fibers [D] are contained in the epoxy resin [B], wherein a weight ratio expressed by [content of [C] (parts by weight)]/[content of [D] (parts by weight)] is 1 to 1000;
- and
- (2) conductive particles or fibers having a thermoplastic resin nucleus or core coated with a conductive substance [E] are contained in the epoxy resin [B].
Dependencies are inferred from the claim text.