Keyword: «biocontamination»

Research and evaluation of biostability of polymeric composite materials to natural factors, such as microorganisms: mold fungi, bacteria, actinomycetes. Study of species diversity of biodegraders and methods of their identification.

The microorganisms that cause biocontamination and bio-damage of experimental samples of polymeric composite materials exposed at the open range of climatic tests in Yakutsk were isolated. The landscape of isolated microorganisms is dominated by spore-forming bacteria p. Bacillus and mold fungi p. Aspergillus, Penicillium, Mucor; occurs: Rhizopus, Chetomium, Scopulariopsis, Fusarium, Trichoderma, etc. It was shown that bacteria (mostly spore-forming) are better adapted to the polymeric substrate and pass from the spore to vegetative stage faster than mold fungi. The microorganisms isolated during the tests can serve as the basis for creating models of microbial consortia, as fungicidal additives to polymeric compositions that can be used to develop polymeric composites adapted to northern conditions.