Prospects for the Use of Spore-forming Bacteria to Combat the Destruction of Polymeric Composite Materials

Abstract

In order to develop an environmentally and economically sound method of dealing with biological damage of polymer composite materials (PCM), studies of environmental objects (EO) and finished products placed at the site of climatic tests in the city of Yakutsk were carried out. A strain of aerobic spore-forming psychrotolerant bacteria of the genus Bacillus was isolated from a fragment of basalt plastic reinforcement. Its biochemical properties and morphological characteristics were studied. It was found that the resulting strain has the ability to destroy fungi. This property of the Bacillus can be used to combat the bio-contamination of PCM. Biogenic factors of contamination of finished products with pathogenic fungi have been studied. It is established that the soil cover and atmospheric air in the area of the climatic test site contain similar types of microscopic fungi that were isolated from the surfaces of the prototypes. The results of studies on the microbiological characteristics of OOS it is possible to predict bizarrerie and, as a consequence, the biodegradation of PKM, as in the finished product, in contact with the aerial environment and soil cover of the landfill environmental tests found the same species (A. niger and A. fumigatus) with similar biochemical properties, which requires additional research

Investigation of Biofouling and Its Effect on the Properties of Basalt Fiber Reinforced Plastic Rebars Exposed to Extremely Cold Climate Conditions

“…They accumulate their biomass, resulting in internal stresses that lead to the expansion and branching of microcracks. As a result, deterioration of the strength properties of PCM occurs [26,27]; however, the adhesion and contamination ability of bacteria and fungi at temperatures below minus 40 • C is practically unexplored.…”