Study of multilayer polymer materials after ionization treatment

• Published in: Journal of physics. Conference series 2017-12, Vol.941 (1), p.12084
• Main Authors: Tarasyuk, V T, Semkina, A A, Solovyeva, V I, Fedotova, D D, Strokova, N E, Malenko, D M, Baranov, O V, Bakumenko, A V, Puchkov, S N, Prokopenko, A V
• Format: Article
• Language: English
• Subjects: Composition; Crosslinking; Electron beam processing; Electron energy; Food packaging; Mechanical properties; Multilayers; Physics; Polymer films; Polymers; Radiation; Radiation effects; Sterilization
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/941/1/012084

Electron-beam technologies of food products processing involves the use of modern packaging materials in form of polymer films of different composition. The objective of the research is to study the impact of accelerated electrons on the structure of the polymeric packaging materials used for storage of agricultural products. It was investigated radiation exposure on film material PE/PA (80/20) with a thickness of 80 mkm. This film used for storage of vegetables and fruits and has the necessary indicators for gas and vapor permeability. Electron beam treatment of the films was performed on a compact radiation sterilization installation with local bio-protection with electron energy of 5 MeV. A polymer films were irradiated with doses from 1 to 10 kGy. Changing the structure of the film composition was monitored by IR spectrometry. As a result of irradiation by accelerated electrons with doses up to 18 kGy is established that the polymer film is modification of the polymeric material in the form of a partial degradation with subsequent intra-molecular crosslinking. This improves the physico-mechanical properties in the transverse direction, and such film can be used for food packaging before electron-beam treatment.