| 摘要 |
<p>A composite of a metal with a resin in which the metal and the resin, especially a shaped base made of an ordinary steel material and a resin composition, can be tenaciously bonded and united to each other; and a process for producing the composite. A surface of a shaped ordinary steel material is treated by chemical etching or the like to form a thin iron autoxidation film layer the surface of which almost wholly has ultrafine irregularities. Hydrazine, ammonia, or a water-soluble amine is chemically adsorbed onto the treated steel material. The resultant steel material shape (1) is inserted into an injection die (10), and a specific resin composition (4) is injected thereinto. The surface of the steel material shape (1) may have a thin layer of a metal oxide or metal-phosphorus oxide. By this injection, a composite (7) is obtained in which the ordinary steel material has been tenaciously bonded and united to the resin. The resin composition (4) to be used contains a crystalline polyphenylene sulfide resin (PPS) or polybutylene terephthalate resin (PBT) as the main resin component.</p> |
