Effect of ionizing radiation on physicochemical and mechanical properties of commercial monolayer and multilayer semirigid plastics packaging materials

Thermal, mechanical and permeation properties of gamma-irradiated multilayer food packaging films containing a buried layer of recycled low-density polyethylene

“…Considerable work has been published in the literature on the effect of ionizing radiation on (a) thermal, mechanical and gas permeation properties and (b) structural changes of polymers as a result of ionizing radiation treatment (Zenkiewicz, 2004;Fengmei et al, 2000;Woo and Sandford, 2002;Yagoubi et al, 1999;Buchalla et al, 1993;Klemchuk, 1993;Goulas et al, 2002Goulas et al, , 2003Goulas et al, , 2004 as well as on the above reported properties of non-irradiated recycled polymers (Devlieghere et al, 1998;Incarnato et al, 1998;Tzankova Dintcheva et al, 1997) and irradiated recycled polymers (Burillo et al, 2002a, b;Suarez and Mano, 2001) There are, however, no data on the effect of ionizing radiation on the above reported properties of multilayer packaging structures containing a middle buried layer of recycled polymer.…”

Study of Coffee Grounds Oil Action in PVC Matrix Exposed to Gamma Radiation: Comparison of Systems in Film and Specimen Forms

“…In next step, these products seem to suffer predominantly radiation crosslinking effect, which leads to increased Mv. In addition, the antioxidant additives phenolic and phosphate usually presents in PVC plasticized, undergo preferably degradation in the processes of irradiation because of the partial radiolysis 15,16 . Thus, PVC specimens are more sensitive to the conditions of irradiation and more susceptible to oxidative degradation than the own resins which not contain additives like the PVC film.…”

The Potential of Food Irradiation: Benefits and Limitations

“…In 2001, the FDA illustrated gamma rays, E-beam and X-ray to be equal in conditions of levels and types of radiolysis products formed in the packaging materials (Deeley, 2002;Goulash et al, 2004). Polymers such as polyethylene, polypropylene, poly vinyl chloride, polystyrene, polyethylene terepthalate and polyamide are some of the most common plastic packaging materials presently available.…”