Experimental study on properties and structure of magnesium alloy/PC/ABS hybrid materials prepared by hot-press molding technology

Abstract

Magnesium alloy/PC/ABS composites were prepared by hot-press molding technology. The bonding strength is the crucial factor to influence the comprehensive performance of this composite, and it was closely related to the different processing parameters such as temperature, pressure and time. After exploring their relationship, the optimal hot-press processing condition was obtained. The micro- and nano-structure of composites also received attention. Before hot-pressed, the magnesium alloy surface was treated by micro-arc oxidation in order to construct the nano-sized pores. With the aid of scanning electron microscope (SEM) and atomic force microscope (AFM), a refined mechanical interlocking structure was observed with the formation of coordinate bonds at the interface of an alloy-polymer hybrid. The binding energy of the chemical elements at the bonding interface of the composite was also tested by X-ray photoelectron spectroscopy (XPS) and the analysis concluded that coordination bonds were formed at the bonding interface. The maximum tensile shear strength of the composite reached 9.48 MPa.

Keywords:

• Plastic-metal hybrid
• micro-arc oxidation
• hot-press molding
• mechanical interlock
• chemical bonding

Acknowledgments

The authors thank the Material Testing Center of the Chongqing University of Technology for providing test characterization services.

CRediT authorship statement

Jie Qiu: Investigation, Data curation, Writing – original draft, Writing – review & editing. Di Cai: Writing – original draft, Writing – review & editing. Xinxin Zhang: Writing – review & editing, Investigation. Qingyun Zhao: Investigation, Data curation. Weili Zhang: Methodology, Investigation. Youbing Li: Supervision, Resources, Writing – review & editing, Project administration. Tian Xia: Supervision, Writing – review & editing. Chaolong Yang: Supervision, Writing – review & editing

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the [Chongqing technological innovation and application development project] under Grant [numbers cstc2020jscx-lyggx0007]; the [science and technology research project of the Chongqing Education Commission] under Grant [number CXQT19027]; and the [graduate innovation project of Chongqing University of Technology] under Grant [number gzlcx20223033].