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Viscoelastic Characterization of Polymers Using Dynamic Instrumented Indentation

Published online by Cambridge University Press:  01 February 2011

C. C. White,
P. L. Drzal and
M. R. VanLandingham
C. C. White*
Affiliation:
National Institute of Standards and Technology Gaithersburg, MD 20899–8615
P. L. Drzal
Affiliation:
National Institute of Standards and Technology Gaithersburg, MD 20899–8615
M. R. VanLandingham
Affiliation:
Weapons & Materials Research Directorate, ATTN: AMSRD-ARL-WM-MA, Army Research Laboratory, Aberdeen Proving Ground, Maryland.
*
1 Address all correspondence to this author; email: christopher.white@nist.gov
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Abstract

Dynamic nanoindentation was performed on a poly(methyl methacrylate, PMMA), and two different poly(dimethyl siloxane, PDMS) samples having different crosslink densities. Comparison was made between dynamic nanoindentation and rheological instrumentation measurements in the glassy and rubbery plateau regions of polymeric materials. Excellent agreement between bulk rheological data and dynamic nanoindentation data was observed for the two glassy materials and the less compliant of the two PDMS samples. Results were divergent for the more compliant PDMS sample.

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References

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