Study of multilayer polymer materials after ionization treatmentстатья
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Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
Аннотация: 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.