-laser polishing of polytetrafluoroethylene surfacesT. Gumpenberger1, J. Heitz1, D. Bäuerle1 and T. C. Rosenmayer2
1 Institut für Angewandte Physik, Johannes-Kepler-Universität - 4040 Linz, Austria
2 W. L. Gore & Associates, GmbH - 85640 Putzbrunn, Germany
received 7 March 2005; accepted in final form 18 April 2005
published online 11 May 2005
The surface roughness and the optical properties of dense polytetrafluoroethylene (PTFE) can be modified by 157 -laser irradiation in atmosphere. With PTFE foils, laser-treatment results in an improved transparency which is attributed to a smoothening of the surface. The treated foils exhibit a similar mechanical stability as the untreated ones.
79.20.Ds - Laser-beam impact phenomena.
61.41.+e - Polymers, elastomers, and plastics.
81.40.Tv - Optical and dielectric properties (related to treatment conditions).
© EDP Sciences 2005