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

Research output: Contribution to journalConference article

2 Citations (Scopus)

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 ml/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.

Original languageEnglish
Pages (from-to)190-194
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5131
DOIs
Publication statusPublished - Dec 1 2002
EventThird GR-I International Conference on New Laser Technologies and Applications - Patras, Greece
Duration: Sep 5 2002Sep 8 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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