Film Impact Performance and Adhesion Study in Multilayered Systems

摘要

In this work we present a non-conventional approach to evaluate impact performance of polymeric films under a wide range of strain conditions by using a high-throughput mechanical testing (HTMECH) technique. The objective of this paper is to demonstrate how HTMECH can be employed to assess property-performance relationships in freestanding polymeric films and multilayered systems which are not possible to measure by following standard methodologies. Two main studies will be discussed: (1) toughness of freestanding thin films under high strain conditions, and (2) layer to layer adhesion in multilayer systems. In each case, mechanical properties such as critical strength and absorbed deformation energy were found to be correlated to different failure mechanisms and to thermal mechanical behavior of polymeric films.