RESEARCH OF THE INFLUENCE OF ENVIRONMENTAL FAC-TORS ON THE MECHANISM OF TEXTOLITHIC BIOLOGY IN THE CONDITIONS OF THE OPEN ECOSYSTEM

doi: 10.25712/ASTU.2072-8921.2021.03.025

Abstract

The environmental factors influencing the mechanism of bioinfection of polymer composite materials (fiberglass, basalt textolite) during exposure in an open ecosystem have been investigated. In laboratory and field experiments, a relationship was established between the influence of various environmental factors and microbial contamination on the nature of bioinfection of polymer composites when they are exposed in an open area in a cold climate. It is shown that environmental factors can affect the state and vital activity of the microbial community, which causes bioinfection of polymeric materials. It is shown that the circulation of molds in the soil substrate can be the cause of contamination of atmospheric air and materials in contact with the soil with fungal spores, which, under favorable conditions, can germinate and cause biodeterioration of polymer composites exposed in an open ecosystem. It was shown that not every microorganism that got from the soil to the surface of polymer composite materials can tightly attach and then penetrate into pores or microcracks, provoking their destruction. The obtained results of microbiological studies contribute to the scientific substantiation of the optimal resource for using PCM in the extreme natural and climatic conditions of the North. Microorganisms isolated in the process of testing can serve as a basis for creating models of microbial consortia, as fungicidal additives to polymer compositions, which can be used to develop polymer composites adapted to northern conditions.