화학공학소재연구정보센터
Chemical Physics Letters, Vol.406, No.1-3, 188-191, 2005
Effect of gamma-irradiation on latent tracks of polyethylene terephthalate (PET) film
The pre-treatment effect of gamma-irradiation on latent tracks of polyethylene terephthalate (PET) films bombarded with swift heavy ions was investigated by electric conductometry and scanning electron microscope (SEM) observation. The Xe-ion bombarded PET films were etched for 6 h in 0.2 M NaOH aqueous solution at 70 degrees C to prepare track-etched membranes. As gamma-irradiation doses increased in the range of 0-160 kGy, the surface pore diameter obtained by SEM observation decreased while that obtained by conductometry became large. This inconsistent result between the two methods was due to an increase in the crosslinked region in the latent tracks caused by gamma-irradiation. (c) 2005 Elsevier B.V. All rights reserved.