Determining patterns in reducing the level of bio-destruction of thermally modified timber after applying protective coatings

Authors

DOI:

https://doi.org/10.15587/1729-4061.2021.242899

Keywords:

protective agents, timber, penetration of microorganisms, weight loss, timber surface treatment

Abstract

This paper reports the analysis of the biological destruction of timber and the use of protective materials, which established that the scarcity of data to explain and describe the process of bioprotection, neglect of environmentally friendly agents lead to the biodegradation of timber structures under the action of microorganisms. Devising reliable methods for studying the conditions of timber protection leads to designing new types of protective materials and application technologies. Therefore, it becomes necessary to determine the conditions for the formation of a barrier for bacteria permeability and to establish a mechanism for inhibiting material biodegradation. Given this, the dependence has been derived to determine the proportion of destroyed material under the effect of microorganisms when using an antiseptic-hydrophobicizer, which makes it possible to evaluate biopenetration. Based on the experimental data and theoretical dependences, the share of destroyed timber was determined under the effect of microorganisms, which is equal to 1 for natural timber. At the same time, this value for thermally modified timber is 0.033, and, when it is protected with oil ‒ 0.009, respectively, exposed to the action of microorganisms for 60 days. It should be noted that the presence of oil, wax, and azure leads to blocking the timber surface from penetration. Such a mechanism underlying the effect of protective coating is likely the factor in the process adjustment, due to which the integrity of the object is preserved. Thus, a polymer shell was created on the surface of the sample, significantly reducing the penetration of microorganisms inside the timber, while the loss of timber mass during biodestruction did not exceed 2.5 %. Therefore, there are grounds to assert the possibility of targeted control over the processes of timber bio-penetration by using coatings capable of forming a protective film on the surface of the material

Supporting Agency

  • Автори висловлюють подяку за фінансову підтримку роботи, виконаної в рамках бюджету фінансування № 0121U001007, а також на розробку наукових тем у програмі наукового співробітництва COST Action FP 1407 «Розуміння модифікації деревини за допомогою інтегрованого наукового та екологічного підходу» в рамках програми Європейського Союзу HORIZON2020.

Author Biographies

Yuriy Tsapko, National University of Life and Environmental Sciences of Ukraine; Kyiv National University of Construction and Architecture

Doctor of Technical Sciences, Professor

Department of Technology and Design of Wood Products

V. D. Glukhovsky Scientific Research Institute for Binders and Materials

Oleksandra Horbachova, National University of Life and Environmental Sciences of Ukraine

PhD, Associate Professor

Department of Technology and Design of Wood Products

Serhii Mazurchuk, National University of Life and Environmental Sciences of Ukraine

PhD, Associate Professor

Department of Technology and Design of Wood Products

Аleksii Tsapko, Ukrainian State Research Institute "Resource"; Kyiv National University of Construction and Architecture

PhD, Senior Researcher

Department of Research of Quality and Conditions of Storage of oil Products and Industrial Group of Goods

V. D. Glukhovsky Scientific Research Institute for Binders and Materials

Kostiantyn Sokolenko, Bila Tserkva National Agrarian University

PhD, Assistant

Department of Forestry

Andrii Matviichuk, V. I. Vernadsky National Library of Ukraine

PhD

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Published

2021-10-31

How to Cite

Tsapko, Y., Horbachova, O., Mazurchuk, S., Tsapko А., Sokolenko, K., & Matviichuk, A. (2021). Determining patterns in reducing the level of bio-destruction of thermally modified timber after applying protective coatings. Eastern-European Journal of Enterprise Technologies, 5(10 (113), 48–55. https://doi.org/10.15587/1729-4061.2021.242899

Issue

Vol. 5 No. 10 (113) (2021): Ecology

Section

Ecology

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Copyright (c) 2021 Yuriy Tsapko, Oleksandra Horbachova, Serhii Mazurchuk, Аleksii Tsapko, Kostiantyn Sokolenko, Andrii Matviichuk

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