Adhesion strength measurements of excimer-laser-treated PTFE surfaces using liquid photoreagents

Bela Hopp; Tomi Smausz; Norbert Kresz; Ferenc Ignacz

doi:10.1117/12.513608

9 April 2003 Adhesion strength measurements of excimer-laser-treated PTFE surfaces using liquid photoreagents

Bela Hopp, Tomi Smausz, Norbert Kresz, Ferenc Ignacz

Proceedings Volume 5131, Third GR-I International Conference on New Laser Technologies and Applications; (2003) https://doi.org/10.1117/12.513608
Event: Third GR-I International Conference on New Laser Technologies and Applications, 2003, San Diego, CA, United States

Abstract

The most known feature of polytetrafluoroethylene (PTFE) is its adhesion behavior: it is hydrophobic and oleophobic at the same time. This can cause serious problems and obstacles during the surface treatment and fixing of PTFE objects. During our experiments Teflon films were irradiated by an ArF excimer laser beam in presence of liquid photoreagents containing amine groups (aminoethanol, 1,2-diaminoethane, triethylene-tetramine). In consequence of the treatment the adhesion of the modified surfaces significantly increased, the samples could be glued and moistened. The adhesion strength of the glued surfaces was measured in the function of the applied laser fluence. The adhesion strength increased drastically between 0 - 1 mJ/cm² and showed saturation above 1 mJ/cm² at approximately 5 - 9 MPa values depending on the applied photoreagents. On the basis of our experiments it was found that the treatment with triethylene-tetramine was the most effective. The surface chemical modifications of the treated Teflon samples can be due to the incorporation of amine groups into the surface layer.

Citation Download Citation

Bela Hopp, Tomi Smausz, Norbert Kresz, and Ferenc Ignacz "Adhesion strength measurements of excimer-laser-treated PTFE surfaces using liquid photoreagents", Proc. SPIE 5131, Third GR-I International Conference on New Laser Technologies and Applications, (9 April 2003); https://doi.org/10.1117/12.513608

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