Research of the biostability of organic bases of paints for wood

The biostability of organic film-formers of paints and varnishes intended for staining wood to the action of the fungus Aspergillus niger was studied. It was found that in Sabouraud's environment on days 7, 14 and 21 from the beginning of infection, the epoxy hardener is characterized by the mi...

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Autores principales:	Sergii Guzii, Ihar Bazhelka, Anastasiya Kanavalava
Formato:	article
Lenguaje:	EN
Publicado:	Scientific Route OÜ 2021
Materias:	biostability organic film formers sabouraud and czapek media aspergillus niger wood Mechanical engineering and machinery TJ1-1570 Physics QC1-999
Acceso en línea:	https://doaj.org/article/9f65ecce995c49ed9f6cca6d416146b8
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id	oai:doaj.org-article:9f65ecce995c49ed9f6cca6d416146b8
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spelling	oai:doaj.org-article:9f65ecce995c49ed9f6cca6d416146b82021-11-19T13:32:07ZResearch of the biostability of organic bases of paints for wood2461-42542461-426210.21303/2461-4262.2021.002142https://doaj.org/article/9f65ecce995c49ed9f6cca6d416146b82021-11-01T00:00:00Zhttp://journal.eu-jr.eu/engineering/article/view/2142https://doaj.org/toc/2461-4254https://doaj.org/toc/2461-4262The biostability of organic film-formers of paints and varnishes intended for staining wood to the action of the fungus Aspergillus niger was studied. It was found that in Sabouraud's environment on days 7, 14 and 21 from the beginning of infection, the epoxy hardener is characterized by the minimum level of damage, respectively, 1, 1.6 and 2.4 points; alkyd film former has 2 points, and in subsequent time intervals 3.7 points; epoxy resin on day 7 is characterized by a lesion level of 1.7 points, on the following days of exposure – 4 points; pentaphthalic film former, respectively, 2.7, 3.7 and 4 points. According to the degree of resistance in the Sabouraud environment, organic film-formers of wood paints can be ranked as follows: epoxy (hardener)>alkyd>epoxy resin>pentaphthalic>organosilicon. It is shown that in the environment of Czapek on 7, 14 and 21 days from the beginning of infection, the minimum level of damage is characterized by an epoxy hardener, respectively, 2, 2.3 and 3 points; pentaphthalic film former, respectively, 2 and 3 points; alkyd film former, respectively, 2.4, 3.7 and 4 points; epoxy resin on day 7 is characterized by a lesion level of 3 points, on the following days of exposure – 4 points. According to the degree of resistance in the environment of Czapek, organic film-forming agents for wood paints can be ranked as follows: epoxy (hardener)>pentaphthalic>alkyd>epoxy resin>organosilicon. Organosilicon film-formers were most intensively affected by the fungus both 7 days after exposure and at a later time, reaching the maximum values of the lesions – 4 points. During the test period, no zones of mycelium growth inhibition were observed in the studied organic basesSergii GuziiIhar BazhelkaAnastasiya KanavalavaScientific Route OÜarticlebiostabilityorganic film formerssabouraud and czapek mediaaspergillus nigerwoodMechanical engineering and machineryTJ1-1570PhysicsQC1-999ENEUREKA: Physics and Engineering, Iss 6, Pp 11-18 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biostability organic film formers sabouraud and czapek media aspergillus niger wood Mechanical engineering and machinery TJ1-1570 Physics QC1-999
spellingShingle	biostability organic film formers sabouraud and czapek media aspergillus niger wood Mechanical engineering and machinery TJ1-1570 Physics QC1-999 Sergii Guzii Ihar Bazhelka Anastasiya Kanavalava Research of the biostability of organic bases of paints for wood
description	The biostability of organic film-formers of paints and varnishes intended for staining wood to the action of the fungus Aspergillus niger was studied. It was found that in Sabouraud's environment on days 7, 14 and 21 from the beginning of infection, the epoxy hardener is characterized by the minimum level of damage, respectively, 1, 1.6 and 2.4 points; alkyd film former has 2 points, and in subsequent time intervals 3.7 points; epoxy resin on day 7 is characterized by a lesion level of 1.7 points, on the following days of exposure – 4 points; pentaphthalic film former, respectively, 2.7, 3.7 and 4 points. According to the degree of resistance in the Sabouraud environment, organic film-formers of wood paints can be ranked as follows: epoxy (hardener)>alkyd>epoxy resin>pentaphthalic>organosilicon. It is shown that in the environment of Czapek on 7, 14 and 21 days from the beginning of infection, the minimum level of damage is characterized by an epoxy hardener, respectively, 2, 2.3 and 3 points; pentaphthalic film former, respectively, 2 and 3 points; alkyd film former, respectively, 2.4, 3.7 and 4 points; epoxy resin on day 7 is characterized by a lesion level of 3 points, on the following days of exposure – 4 points. According to the degree of resistance in the environment of Czapek, organic film-forming agents for wood paints can be ranked as follows: epoxy (hardener)>pentaphthalic>alkyd>epoxy resin>organosilicon. Organosilicon film-formers were most intensively affected by the fungus both 7 days after exposure and at a later time, reaching the maximum values of the lesions – 4 points. During the test period, no zones of mycelium growth inhibition were observed in the studied organic bases
format	article
author	Sergii Guzii Ihar Bazhelka Anastasiya Kanavalava
author_facet	Sergii Guzii Ihar Bazhelka Anastasiya Kanavalava
author_sort	Sergii Guzii
title	Research of the biostability of organic bases of paints for wood
title_short	Research of the biostability of organic bases of paints for wood
title_full	Research of the biostability of organic bases of paints for wood
title_fullStr	Research of the biostability of organic bases of paints for wood
title_full_unstemmed	Research of the biostability of organic bases of paints for wood
title_sort	research of the biostability of organic bases of paints for wood
publisher	Scientific Route OÜ
publishDate	2021
url	https://doaj.org/article/9f65ecce995c49ed9f6cca6d416146b8
work_keys_str_mv	AT sergiiguzii researchofthebiostabilityoforganicbasesofpaintsforwood AT iharbazhelka researchofthebiostabilityoforganicbasesofpaintsforwood AT anastasiyakanavalava researchofthebiostabilityoforganicbasesofpaintsforwood
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Research of the biostability of organic bases of paints for wood

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