Study of water uptake in poly(ether ether ketone) irradiated by MeV O+ and Au+ ions

0523922 - ÚJF 2021 RIV GB eng J - Journal Article
Hnatowicz, Vladimír - Vacík, Jiří - Horák, Pavel
Study of water uptake in poly(ether ether ketone) irradiated by MeV O+ and Au+ ions.
Radiation Effects and Defects in Solids. Roč. 175, 3-4 (2020), s. 318-324. ISSN 1042-0150. E-ISSN 1029-4953
R&D Projects: GA ČR GA18-07619S; GA MŠMT LM2015056
Institutional support: RVO:61389005
Keywords : Poly(ether ether ketone) * ion irradiation * LiCl doping * neutron depth profiling * diffusion
OECD category: Materials engineering
Impact factor: 1.141, year: 2020
Method of publishing: Limited access
https://doi.org/10.1080/10420150.2019.1701463

Poly(ether ether ketone) (PEEK) was irradiated with 4 MeV O+ and 5 and 10 MeV Au+ ions to the fluences from 10(12) to 10(14 )cm(-2) and then treated in 5 M/l water solution of LiCl for one month at room temperature. After drying and removal of LiCl surface contamination, the depth distribution of LiCl embeded in PEEK was measured by the neutron depth profilig method (NDP) sensitive to Li-6 isotope. Embeded LiCl is believed to map distribution of water diffusing into PEEK interior. The results show that the PEEK irradiated to the fluences above 1.10(13)cm(-2) is prone to water penetration to the depths of few microns. On the pristine PEEK and that irradiated to lower ion fluences only a surface Li contamination is observed.
Permanent Link: http://hdl.handle.net/11104/0308212