Title :
Sterilization condition of UHMWPE is measured by thermoluminescence technique
Author :
Hall, O., III ; Jahan, M.S.
Author_Institution :
Dept. of Phys., Memphis Univ., TN, USA
Abstract :
A thermoluminescence (TL) technique, which is simple but fast and sensitive, was used as a diagnostic tool to test short-term or initial (immediately following sterilization) oxidation of UHMWPE. More than 50% radical species decayed or oxidized in the first 10 min in an oxygen environment and in 25 min in a nitrogen environment. The glow-peak temperatures 130°C and 160°C of the TL glow curve were also found to be associated with the sterilization conditions, nitrogen and oxygen, respectively
Keywords :
environmental degradation; molecular weight; oxidation; plastic packaging; polymers; prosthetics; thermoluminescence; 130 degC; 160 degC; N2; O2; TL glow curve; UHMWPE; diagnostic tool; glow-peak temperatures; initial oxidation; nitrogen environment; oxygen environment; radical species; short-term oxidation; sterilization condition; surgical implants; thermoluminescence technique; ultra high molecular weight polyethylene; Conducting materials; Heating; Implants; Medical diagnostic imaging; Nitrogen; Oxidation; Packaging; Physics; Temperature; Testing;
Conference_Titel :
Biomedical Engineering Conference, 1995., Proceedings of the 1995 Fourteenth Southern
Conference_Location :
Shreveport, LA
Print_ISBN :
0-7803-2083-2
DOI :
10.1109/SBEC.1995.514437
