Abstract: A composite material includes nitrile group-containing copolymer rubber; polyester-based thermoplastic polyurethane; and polyalkylene oxide containing metal salt, in which the metal salt is alkali metal salt or alkaline earth metal salt, and an amount of the metal salt in the polyalkylene oxide containing metal salt is 0.5 parts by mass to 3.0 parts by mass with respect to 100 parts by mass of the total amount of the nitrile group-containing copolymer rubber and the polyester-based thermoplastic polyurethane.

Abstract: The thermoplastic resin composition includes 30 to 80 parts by mass of a polyamide, 20 to 70 parts by mass of a thermoplastic fluorine resin, and a carbon fiber. Also, a total sum of the polyamide and the thermoplastic fluorine resin is 100 parts by mass, an amount of the carbon fiber is 5 to 50 parts by mass based on 100 parts by mass of the total sum of the polyamide and the thermoplastic fluorine resin. The thermoplastic fluorine resin has a tensile elongation of equal to or greater than 450%, and a tensile stress of equal to or greater than 5 MPa.