RESIN MOLDED ARTICLE, AND MANUFACTURING METHOD FOR SAME

摘要

A surface boundary is formed between a sealed surface of a thermosetting resin member and a thermoplastic resin member to seal the sealed surface. A newly formed surface is formed at the surface boundary by removing a surface layer in the sealed surface. A functional group in the newly formed surface is chemically bound to a functional group in a functional group-containing additive added to a constituent material of the thermoplastic resin member.

主权项

1. A manufacturing method of a resin molded article including:
a thermosetting resin member made of thermosetting resin; and a thermoplastic resin member made of thermoplastic resin to seal a sealed surface as part of a surface of the thermosetting resin member, wherein an exposed surface as a remaining part of the surface of the thermosetting resin member is exposed from the thermoplastic resin member, the manufacturing method comprising: a hardening mold process that uses a thermosetting resin material as a raw material of the thermosetting resin member, and heats and completely hardens the thermosetting resin material to form the thermosetting resin member; a surface layer removal process that removes a surface layer on a topmost surface in at least part of the sealed surface of the thermosetting resin member and forms the at least part of the sealed surface as a newly formed surface containing a functional group; and a plasticizing mold process that
injection-molds a material serving as a thermoplastic resin material as a raw material of the thermoplastic resin member onto the thermosetting resin member formed with the newly formed surface, the material doped with a functional group-containing additive containing a functional group chemically bound to the functional group on the newly formed surface, andseals the sealed surface of the thermosetting resin member with the thermoplastic resin member while chemically binding the functional group on the newly formed surface to the functional group in the functional group-containing additive with which the thermoplastic resin material is doped.