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Effect of Surface Microstructure on Conjugation behaviors of Joining Process for Polymer-Metal Hybrid Material

Hiroto Suenaga, Hiroshi Ito, and Wataru Horiuchi

Abstract


Recently, polymer-metal hybrid (PMH) material plays a key role in the various field of automotive parts, electronic devices, and medical equipment. In this research, polyphenylene sulfide (PPS)/aluminum joining molded was successful developed which modified micro-structure on the aluminum surface by using an injection molding for joining process. The results show that the joining strength as the maximum load and the maximum stress were increased by increasing groove height and groove number, but the crystallinity did not change by using different of groove height and number of the groove at the same of annealing process. The 2 kinds of conjugation behaviors were obtained after adhesive test as matrix-fracture-like and cohesive-failure-like. The obtained PPS groove height 40-70 μm indicated the cohesive failure, while the higher value indicated the matrix fracture, at the height about 70 μm is considered to be critical boundary point of the 2 behaviors.

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