Features of the Effect of a High-Power Ion Beam of Nanosecond Duration on Polyethylene Terephthalate

Abstract

The features of formation of surface morphology of polyethylene terephthalate under the influence of high-power ion beam of nanosecond duration have been investigated. It has been established that at a single exposure of such a beam to polyethylene terephthalate, as well as for the majority of other polymers, pores are formed in a near-surface layer, however their quantity is much less. Significant differences begin to appear when the polymer is repeatedly irradiated with a high-power ion beam. For most polymers this leads to an increase in surface porosity and partial local destruction of the near-surface layer. Under such irradiation conditions, various spatial structures are formed on the polyethylene terephthalate surface, the type and sizes of which depend on the number of irradiation pulses. X-ray microanalysis of the near-surface layer showed a significant (1.4 times) decrease of oxygen content after ion irradiation. Irradiation of polyethylene terephthalate by high-power ion beam does not result in the formation of a thin carbon layer on its surface. The possible reasons of formation of such surface morphology under the action of high-power ion beam on polyethylene terephthalate have been considered.