Ballistic Impact Resistance of Monolithic, Hybrid and Nano Composites of PC and PMMA

摘要

Ballistic impact energy absorption behaviors of PC, PMMA and PMMA/PC composites were examined. Failure behavior of PMMA changes as the impact velocity and thickness increases. Brittle failure observed at low velocity transit to the localized failure at high velocities, which apparently enhanced energy absorption drastically. Monolithic PMMA outperformed monolithic PC when the thickness of PMMA is around 12mm or greater. Furthermore, the hybrid system of PMMA with a thin layer of PC exhibited synergistic effect by showing superior performance over monolithic PC or PMMA. PMMA/ nano silicate samples exhibited similar behavior to the monolithic PMMA.