Effect of Interfacial Microstructure on Properties of Aluminum-plastic Composite

doi:10.3901/JME.2018.12.148

Abstract

Abstract: Aluminum-plastic composite components, with high strength, low weight, easy to shape complex structures and so on, are gradually wide application in the aerospace, energy, automotive, communications and other fields. A method producing aluminium-plastic composite by injection technology is proposed. The aluminum alloy surface is treated by anodic oxidation to obtain the nanoscale microstructure. To improve the interfacial bonding strength between the metal and the polymer, the anodized metal surface is activated, and the surface microstructure is characterized by X-ray energy dispersive spectroscopy(XPS). The composition of the metal surface is investigated, and the processing time is optimized as well. Metal samples after treatment are placed in a mold with high temperature for the following injection process, and the aluminium-plastic composites are successfully obtained. The morphology of the metal surface after tensile fracture was examined by laser scanning confocal microscopy(LSCM) and scanning electron microscope(SEM). The failure mechanism of the aluminum-plastic composite is also analysed. The presented results can be used as a theoretical basis for the actual production of the product.

Key words: aluminum-plastic combination, anodizing, injection molding, surface activation

CLC Number:

TG156

LIU Fuwen, LI Xiping, GONG Ningning, ZENG Shuiping, HUANG Ping, YANG Can. Effect of Interfacial Microstructure on Properties of Aluminum-plastic Composite[J]. Journal of Mechanical Engineering, 2018, 54(12): 148-155.

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