| 摘要 |
A method for laser bonding is provided in which interfacial strength between two thermoplastic resins or between a resin and a metal is heightened to render tenacious bonding possible, and bonding failures due to a remaining space can be significantly diminished. In order to solve the problem, the method includes, before bonding, a step in which the bonding surface of at least a first thermoplastic resin is subjected to a surface modification treatment to thereby form an oxidized layer that contains a larger number of oxygenic functional groups than in the bulk thermoplastic resin. A liquid intermediate material is interposed between the first thermoplastic resin and a second thermoplastic resin or a metal, and the stack in this state is pressed and bonded by laser irradiation. |
