Abstract: To provide a polyrotaxane composite formed body produced by strong bonding between a crosslinked polyrotaxane formed body and an elastomer formed body without intervention of an adhesive. Provided is a method for producing a polyrotaxane composite formed body, the method including subjecting a surface of a crosslinked polyrotaxane formed body and a surface of an elastomer formed body to plasma treatment, and pressure joining the treated surfaces together, to thereby bond the formed bodies. Also provided is a polyrotaxane composite formed body including a crosslinked polyrotaxane formed body and an elastomer formed body, wherein these formed bodies are directly bonded together without being intermingled with each other in the absence of an adhesive layer between the formed bodies, an oxygen-rich layer is present between the bonding surfaces of the formed bodies, and the formed bodies exhibit a peel strength of 1 N/m or more.

Abstract: The metal part is one where a carboxyl group or an amino group, or a hydroxyl group is imparted onto the surface. On the other hand, the resin part is one into which an adhesiveness modifier containing an epoxy group is blended. A process for producing a composite of metal and resin, wherein the metal part and the resin part are bonded by interaction of the carboxyl group or the amino group, or the hydroxyl group with the epoxy group.

Abstract: A composite material engineered from metal and resin and a production method of the composite material. The composite material includes a metal portion composed of metal; a resin portion composed of resin; a polar functional group imparted to a surface of the metal portion; and an adhesion modifying agent mixed in the resin and including an adhesive functional group which interacts with the polar functional group. The metal portion and the resin portion are bonded by the interaction between the polar functional group and the adhesive functional group.

Abstract: The metal part is one where a carboxyl group or an amino group, or a hydroxyl group is imparted onto the surface. On the other hand, the resin part is one into which an adhesiveness modifier containing an epoxy group is blended. A process for producing a composite of metal and resin, wherein the metal part and the resin part are bonded by interaction of the carboxyl group or the amino group, or the hydroxyl group with the epoxy group.

Abstract: A composite material engineered from metal and resin and a production method of the composite material. The composite material includes a metal portion composed of metal; a resin portion composed of resin; a polar functional group imparted to a surface of the metal portion; and an adhesion modifying agent mixed in the resin and including an adhesive functional group which interacts with the polar functional group. The metal portion and the resin portion are bonded by the interaction between the polar functional group and the adhesive functional group.