Structure of polymer surface after pulse ion beam treatment

Appearance of new exploitation properties of polymers after ion beam treatment is connected with changes of structure, which take place in surface layer under the action of ion beam. This changes is connected with high dissipated energy of moving ion in polymer surface layer in comparison with binding energy and ionizing potential of atoms. Therefore, a study of influence of high current density of ion beam on changes of structure is interesting for modification of surface layer of polymer. High density of dissipated energy in thin surface layer limits a current density due to a low thermo conductivity and thermo stability of polymers. The pulse regime of treatment permits to increase of current density to 10–15 mA/cm² without heating of treated polymer. In this work the studies of polyethylene, polypropylene, polyisoprene, polystyrene, polytetrafluorethylene, polyurethane after action of ion beam with energy of 10–30 keV at 1–12 mA/cm² current density in pulse regime are presented. Usage of spectral methods (IR ATR, Raman, UV-transmissions and reflections, XPS), methods of surface energy measurement and other modern methods is shown the effectiveness of pulse regime. Influence of air oxygen to oxidizing processes in surface layer of polymer after ion beam treatment was considered. Lamellar structure model of surface layer was proposed.