Interfacial-treatment and Properties of Fiberglass/PC Resin/LY12 Al Alloy Laminated Composites

The glass fiber/PC resin/LY12 Al alloy laminated composites were fabricated with heat-squeeze solidifying and forming technique.The morphology of the interface and bonding state of the laminated composites was observed and analyzed by means of SEM.The influence of surface-treatment on the properties of the laminated composites was fine after surface-treatment of the glass fiber and LY12 Al alloy.The glass fiber/PC resin/ LY12 Al alloy laminated composites showed good combined properties.The tensile strength reached 210.2MPa and flexural strength reached 325MPa when fiber content was 15%,and its impact toughness was larger than 173.5kJ/m2.Its freedom damping factor was up to 0.332,which was not less than that of the damping materials with viscoelastic matrix.The damping mechanism of the laminated composites and the influence of variety of the fiber volume fraction on its damping capability were discussed.