Researches of Changes in the Physical and Mechanical Characteristics of Polymeric Film Materials Based on Polyethylene, Filled with CACO3, when Exposed Ultraviolet Radiation

In the modern world, the requirements for the operational properties of various materials and products obtained from them are constantly increasing, which can be ensured by the choice of raw materials and technological parameters of production. A significant change in the properties of the material and imparting new characteristics to it is possible due to the introduction of modifying fillers, which, along with the operational ones, change the technological properties, facilitating the processing of the material into a product while reducing the cost of production. In the long term, the developed materials should ensure the safety of products throughout their shelf life and operation, and after operation of the products, significantly reduce the load on the environment. The purpose of the work is to reveal the tendency to destruction of polymeric highly filled materials by determining the effect of ultraviolet radiation on the physical and mechanical characteristics of a polyethylene film filled with calcium carbonate. An experiment on irradiation of filled materials with ultraviolet radiation was carried out using an experimental model stand. Physical and mechanical tests of the films before and after irradiation were carried out in accordance with specification documents. Studies have shown the effect of ultraviolet radiation on the physical and mechanical characteristics of polymer films with a high content (at least 50%) of calcium carbonate, which can potentially provide good prerequisites for accelerated degradation and destruction of polymer materials and reduce the environmental load on the environment after the end of its life cycle.

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