Investigation of the influence of ultraviolet radiation on the strength characteristics of mineral-filled films during their disposal after the end of the life cycle

Abstract

Abstract This work presents data on the study of polymer filled films for dairy, food and agricultural products during their disposal after the end of their life cycle. One of the directions for solving the problem of accelerated degradation of packaging is considered, which in the future can have a positive effect on the environment. Hypothetical approaches to the initiation of the destruction processes of the objects of study have been implemented through the development of highly filled film materials and exposure to ultraviolet radiation. The physical and mechanical parameters of the samples were selected as a degradation criterion. The aging process under natural conditions lasts for years, so an attempt was made to accelerate it by forced photo-oxidation of samples by ultraviolet irradiation, for which a special experimental setup was developed. To simulate the natural conditions for the disposal/disposal of packaging at landfills, we used a laboratory stand consisting of vermicompost and a composting accelerator. As a result of the studies, the dynamics of the decrease in strength (indicator “breaking stress at break”) of samples of highly filled films after their irradiation and storage under composting conditions for 9 months is shown. The “elongation at break” indicator also undergoes significant changes. Taken together, this indicates the progress of the process of degradation of the objects of this study.