Multiple healing in multi-functional polymer composites

Abstract

In this work, we investigate the formation of self-healing systems that are able to recover more than once more than one (mechanical or other physical) functionality. To this aim composites were created consisting of a polysulfide thermoset rubber matrix having intrinsic self-healing properties filled with thermally/electrically conductive particles. The cohesion, adhesion and thermal/electrical conduction recovery of these composites are investigated, monitored and quantified as function of the filler type and content. Moreover, the effects of healing temperature and the intrinsic polymer structure on the kinetics and degree of property recovery are explored.