MICROMECHANICAL DEFORMATION PROCESSES IN TOUGHENED AND PARTICLE FILLED SEMICRYSTALLINE POLYMERS - PART 2 - MODEL REPRESENTATION FOR MICROMECHANICAL DEFORMATION PROCESSES

Toughening mechanisms occurring in various toughened and particle fill ed semicrystalline polymers have been investigated by several cursive electron microscopic techniques. In the previous work (Part I) it has been shown that the toughening mechanisms involved in different blend systems are influenced decisively by the phase morphology of modifier particles and the phase adhesion between matrix and modifier particles , which in turn lead to different micromechanical deformation processe s. Form these results six different schematic models for micromechanic al deformation processes are proposed. To simplify the explanation of micromechanical deformation processes it has been described in form of three-stage-mechanism. Finally, the results of micromechanical deform ation processes are discussed with the concept of energy dissipation a nd stress states. (C) 1998 Elsevier Science Ltd. All rights reserved.