The influence of phase morphology of polycarbonate/polyethersulfone blends on the failure behavior between the blends and polyurethane in the peel test

Author:

Schneider Konrad1ORCID,Bräuer Matthias1,Bobeth Manfred2,Kühnert Ines3,Malanin Mikhail4,Schlenstedt Kornelia3,Pompe Wolfgang2

Affiliation:

1. Institute of Polymer Materials, Department Materials Engineering Leibniz‐Institut für Polymerforschung Dresden Dresden Germany

2. Institute for Materials Science and Max Bergmann Center of Biomaterials TU Dresden Dresden Germany

3. Institute of Polymer Materials, Department Processing Technology Leibniz‐Institut für Polymerforschung Dresden Dresden Germany

4. Institute of Macromolecular Chemistry, Center Macromolecular Structure Analysis Leibniz‐Institut für Polymerforschung Dresden Dresden Germany

Abstract

AbstractIn peel, tests between polycarbonate/polyethersulfone (PC/PES) blends with different compositions and thermoplastic polyurethane (TPU) films with different thicknesses a large decrease in energy release rate is observed when the PC/PES blends formed a co‐continuous structure. With SEM analysis, XRD measurements, selective PC etching of failed samples, and finite element modeling of the stress distributions in the co‐continuous region this fracture behavior can be explained. It is caused by the interplay between the formation of the main crack in the process zone and the size and density of microcracks in the energy dissipation zone. While the pure components PC and PES exhibit good adhesion to the TPU, the immiscibility of PC and PES causes the steady decrease of with increasing volume fraction of the minor phase.

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry

Reference52 articles.

1. H.Kraft.Ed. Mehr‐Farben‐ mehr Materialien‐ Mehrkomponenten‐Spritzgießtechnik Veitshöchheim Mai 6.‐7 1992.1992.

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