Fiber-reinforced resin composite material

Abstract

The resin-reinforcing fiber of the preset invention is a fiber surface-treated with an epoxidized polydiene resin. The fiber is preferably carbon fiber or glass fiber. The fiber-reinforced resin composite material of the present invention comprises the resin-reinforcing fiber and a matrix resin. The matrix resin is preferably an epoxy thermosetting resin. The resin-reinforcing fiber of the present invention can improve the absorbed energy up to the maximum load (elastic energy) of a fiber-reinforced resin composite material and the absorbed energy after the maximum load (propagation energy) thereof at the same time.

1 . A resin-reinforcing fiber in which a fiber is surface-treated with an epoxidized polydiene resin. 
     
     
         2 . The resin-reinforcing fiber according to  claim 1 , wherein the fiber is carbon fiber or glass fiber. 
     
     
         3 . A fiber-reinforced resin composite material comprising a resin-reinforcing fiber according to  claim 1  and a matrix resin. 
     
     
         4 . The fiber-reinforced resin composite material according to  claim 3 , wherein the matrix resin is an epoxy thermosetting resin. 
     
     
         5 . A structure comprising a fiber-reinforced resin composite material according to  claim 4 . 
     
     
         6 . A fiber-reinforced resin composite material comprising a resin-reinforcing fiber according to  claim 2  and a matrix resin.