Degradation of polypropylene under gamma irradiation: protection effect of additives

Contamination from Sterilization Procedures

“…Soebianto et al [66] evaluated gas formation by analyzing, by GC, the content of sealed ampoules in which pure PP samples were irradiated (25-300 kGy) either in vacuum or in an oxygen atmosphere. Soebianto et al [66] evaluated gas formation by analyzing, by GC, the content of sealed ampoules in which pure PP samples were irradiated (25-300 kGy) either in vacuum or in an oxygen atmosphere.…”

“…22 The O 2 uptake as a function of dose for the PP samples containing 1 wt % additives irradiated with 1 kGy/h. Initial O 2 pressure was 300 Torr () 0.3-mmthick additive-free film (pure); other symbols are 0.6-mm films[66].…”

Radiation effects on liquid paraffins as polymer model compounds

“…18 In the present experiment gas product analysis was also performed for comparison with the model compound. Under vacuum conditions, G(H 2 ) of pure PP (2.9) is almost the same as that of C 30 H 62 (3.0), but lower than that of n-C 16 H 34 (3.5).…”

Effects of gamma irradiation on color removal from reactive red 24 aqueous solutions

“…The gamma radiation has been successfully to treat slaughterhouse wastewater [5], coking wastewater [6], pesticide production wastewater [7], pharmaceutical wastewater [8] ,and also drinking water [9]. However, the ionizing radiation process normally required high irradiation dose (or irradiation time) to degrade the complex organic compounds [10][11][12]. In this way, there is a need for an effective and nonhazarsous method could combine with the ionizing radiation process.…”