Changes in Electrical Conductivity During Mechanical Deformation ofCarbon Black Filled Elastomeric Matrix

摘要

Relation between electrical conductivity and mechanical behaviour was investigated during mechanical deformationfollowed by stress relaxation at constant deformation and by recovery after stress release. Although generally simplemechanism was expected consisting in conductivity decrease during strain followed by certain recovery during stressrelaxation, rather complex behaviour was observed, depending on deformation values and type of filler used. It is believedthat conductivity changes may contribute to understanding of changes in the reinforcing filler structure during mechanicaldeformation. The results are discussed in terms of formation, decomposition and further reforming of conductive continuousfiller structures during various stages of mechanical deformation.