Abstract
Four acrylate-based networks were developed such that they possessed similar glass transition temperature (∼− 37 °C) but varied in material stiffness at room temperature by an order of magnitude (2–12 MPa). Thermo-mechanical and adhesion testing were performed to investigate the effect of elastic modulus on adhesion profiles of the developed samples. Adhesion experiments with a spherical probe revealed no dependency of the pull-off force on material modulus as predicted by the Johnson, Kendall, and Roberts theory. Results obtained using a flat probe showed that the pull-off force increases linearly with an increase in the material modulus, which matches very well with Kendall’s theory.
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This project has been partly funded by the Volkswagen Stiftung and by the German Science Foundation (DFG SPP1420).
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Lakhera, N., Graucob, A., Schneider, A.S. et al. Adhesion behavior of polymer networks with tailored mechanical properties using spherical and flat contacts. MRS Communications 3, 73–77 (2013). https://doi.org/10.1557/mrc.2013.3
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DOI: https://doi.org/10.1557/mrc.2013.3