| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that it is difficult to mold a polyester resin, in particular a PET resin, by horizontal extrusion although the polyester resin has high strength and is inexpensive, by turning the polyester resin into a thermoplastic composite (CFRTP) via carbon fiber reinforcement, and consequently further obtaining improved strength and corrosion resistance or the like, and making extension of application to a civil-engineering and construction material, an automotive material, an aerospace material, and other advanced materials expectable.SOLUTION: A thermoplastic composite (CFRTP) of a carbon fiber-reinforced polyester resin is produced by chemically bonding a terminal carboxy group of a polyester and a carboxy group-containing carbon fiber by reaction extrusion with an epoxy resin as a bonding agent and a catalyst. From the composite pellet with improved melt viscosity and moldability, an extrusion-molded article with significantly improved physical properties such as strength is produced. Furthermore, significant cost reduction can be achieved by using carbon fiber recycled from a carbon fiber-reinforced thermosetting composite (CFRP) of an end material generated in assembling an aircraft, a chopped product of an inexpensive recovered carbon long fiber or the like.SELECTED DRAWING: None |
