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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 8: Poster: Nanoparticles and Composite Materials
CPP 8.44: Poster
Montag, 26. März 2012, 17:30–20:00, Poster A
Concave Micro/Nanoparticles as Powerful Facilitators for Bonding of Non-Adhesive Polymers — •Xin Jin1, Sebastian Wille1, Dawit Gedamu1, Rainer Adelung1, Jan Strüben2, Anne Staubitz2, Lars Heepe3, Alexander Kovalev3, and Stanislav Gorb3 — 1Functional Nanomaterials, Institute for Materials Science, University of Kiel — 2Otto-Diels Institute of Organic Chemistry, University of Kiel — 3Functional Morphology and Biomechanics, Institute of Zoology, University of Kiel
Modern engineering often requires that two polymer objects are firmly joined together, while at the same time demanding that specific properties and functions of each individual polymer are preserved. In many cases, chemical and mechanical properties of polymers to be joined are so different that strong adhesive bond between them by using conventional methods is hardly possible. In this work, we present a new approach to facilitate strong adhesion between non-adhesive polymers, such as PTFE and crosslinked PDMS, by employing tetrapod ZnO micro/nanoparticles with concave cross-section. We show that the adhesion force attained by this approach is of the same order of magnitude as obtained by plasma etching method and can be seen as a viable, simple alternative to this method. The tetrapod micro/nanoparticles were produced in high quantities at low cost with Flame Transport Synthesis(FTS). Results from peeling tests, SEM observations, and video recordings of peeling process are presented. The mechanisms of adhesion enhancement are discussed in detail. Acknowledgement: We thank DFG SFB677-C10 for the financial support.