Surface roughness of peeled adhesive tape: A mystery?

Author: Persson B. N. J.   Kovalev A.   Wasem M.   Gnecco E.   Gorb S. N.  

Publisher: Edp Sciences

E-ISSN: 1286-4854|92|4|46001-46001

ISSN: 0295-5075

Source: EPL (EUROPHYSICS LETTERS), Vol.92, Iss.4, 2010-11, pp. : 46001-46001

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Abstract

We study the surface roughness of adhesive tape peeled in stick-slip. We find two regions: a smooth surface region associated with fast crack propagation and a rough surface region associated with slow crack propagation. In both regions the surfaces may be self-affine fractal-like with the fractal dimension Df≈2.3. This fractal dimension is typical for surfaces produced by crack propagation, but unexpected in the present case.