Interfacial interaction and joining property of direct injection-molded polymer-metal hybrid structures: A molecular dynamics simulation study

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Details zur Publikation

Autor(en): Zhou M, Xiong X, Drummer D, Jiang B
Zeitschrift: Applied Surface Science
Jahr der Veröffentlichung: 2019
Band: 478
Seitenbereich: 680-689
ISSN: 0169-4332


Abstract

Polymer-metal hybrid structures have been increasingly used to replace metallic components. Direct injection joining is one of the most promising technologies in fabricating polymer-metal hybrid structure. In this study, molecular dynamics method was used to study the interfacial interaction and joining property. Interfacial models with different surface structures on aluminum (Al) substrate were constructed. The influences of surface structure, non-bonded interaction strength, and pull-out force during the separation were systematically explored. Simulation results show that an obvious difference in polymer structure along z-axis is observed during the joining process. Influenced by the interfacial interaction, the atomic density is at its largest near the interface. As the separation continues, growing voids are observed near the interface. Polymer chains close to the Al substrate are greatly stretched, while the chains far away from the interface are relatively steady. Nevertheless, the changes in radius of gyration during the separation are much higher regardless of the substrate structures. The contact area mainly contributes to the interaction energy, whereas the mechanical interlocking formed in the undercut area contributes to the maximum inner force and work of separation. Moreover, the interfacial interaction is also affected by the non-bonded interaction strength and the pull-out force.


FAU-Autoren / FAU-Herausgeber

Drummer, Dietmar Prof. Dr.-Ing.
Lehrstuhl für Kunststofftechnik


Autor(en) der externen Einrichtung(en)
Central South University


Zitierweisen

APA:
Zhou, M., Xiong, X., Drummer, D., & Jiang, B. (2019). Interfacial interaction and joining property of direct injection-molded polymer-metal hybrid structures: A molecular dynamics simulation study. Applied Surface Science, 478, 680-689. https://dx.doi.org/10.1016/j.apsusc.2019.01.286

MLA:
Zhou, Mingyong, et al. "Interfacial interaction and joining property of direct injection-molded polymer-metal hybrid structures: A molecular dynamics simulation study." Applied Surface Science 478 (2019): 680-689.

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Zuletzt aktualisiert 2019-01-04 um 18:08