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Adhesion behavior of polymer networks with tailored mechanical properties using spherical and flat contacts

Published online by Cambridge University Press:  11 February 2013

Nishant Lakhera ,
Annalena Graucob ,
Andreas S. Schneider ,
Elmar Kroner ,
Maurizio Micciché ,
Eduard Arzt  and
Carl P. Frick
Nishant Lakhera
Affiliation:
Department of Mechanical Engineering, University of Wyoming, Laramie, Wyoming 82071
Annalena Graucob
Affiliation:
INM—Leibniz Institute for New Materials, Functional Surfaces Group, 66123 Saarbrücken, Germany
Andreas S. Schneider
Affiliation:
INM—Leibniz Institute for New Materials, Metallic Microstructures Group, 66123 Saarbrücken, Germany
Elmar Kroner*
Affiliation:
Functional Surfaces Group, INM—Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
Maurizio Micciché
Affiliation:
Functional Surfaces Group, INM—Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
Eduard Arzt
Affiliation:
Functional Surfaces Group, INM—Leibniz Institute for New Materials, 66123 Saarbrücken, Germany; Metallic Microstructures Group, INM—Leibniz Institute for New Materials, 66123 Saarbrücken, Germany; and Saarland University, 66123 Saarbrücken, Germany
Carl P. Frick
Affiliation:
Department of Mechanical Engineering, University of Wyoming, Laramie, Wyoming 82071
*
Address all correspondence to Elmar Kroner at [email protected]
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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.

Type
Research Letters
Information
MRS Communications , Volume 3 , Issue 1 , March 2013 , pp. 73 - 77
Copyright
Copyright © Materials Research Society 2013

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