Surface Modification of Polytetrafluoroethylene Containing Carbonaceous Materials by KrF-Laser Irradiation

The adhesive property of polytetrafluoroethylene (PTFE) film containing a small amount of carbonaceous materials such as carbon black and graphite was improved remarkably by KrF-laser irradiation in air. The adhesive strength increased with the irradiated energy and the fluence of laser.