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Impact of the Heat Treatment Duration on Color and Selected Mechanical and Chemical Properties of Scots Pine Wood

cris.virtual.author-orcid0000-0003-3939-9015
cris.virtual.author-orcid0000-0002-1863-5122
cris.virtual.author-orcid0000-0002-9531-0663
cris.virtual.author-orcid0000-0003-1909-9111
cris.virtual.author-orcid0000-0003-3026-5192
cris.virtual.author-orcid0000-0001-9943-9440
cris.virtualsource.author-orcid07c49f56-95c3-4790-b1b8-aea8e244da65
cris.virtualsource.author-orcid6a8b732a-4d41-4035-915d-4faca811a0d6
cris.virtualsource.author-orcidc0086f1f-95ce-4e38-bbec-1b0409f8f2b0
cris.virtualsource.author-orcid3671513d-a50f-411a-a41f-bf44c29b5110
cris.virtualsource.author-orcidaf1b0375-c966-4ceb-a9cc-69bf4ed40a81
cris.virtualsource.author-orcid7de6d65a-835c-4873-b99b-4e41d7380bcd
dc.abstract.enThe aim of this study was to assess the effect of the duration of heat treatment on changes in the color, as well as the chemical and mechanical properties of Scots pine sapwood. An important element of the research was to obtain the assumed temperature in the entire volume of samples. Quantitative changes in color and its components were recorded, while mechanical properties were determined in tests of compressive strength parallel and perpendicular to the grain, longitudinal tensile strength and modulus of elasticity and impact strength. The novelty of the research was to determine the above-mentioned parameters for twin samples with identical moisture contents. Chemical analyses were conducted on heat-treated wood that was subjected to heat treatment at 220 °C for a period from 1 to 8 h. Extension of the heat treatment duration resulted in the increasing darkening of the wood, as well as a further reduction in the impact strength and tensile strength parallel to the grain by approx. 40 and 50%, respectively, compared to the control wood, but also compared to heat-treated wood for a shorter treatment duration. The heat treatment of wood caused changes in the contents of the wood components, as well as the elemental composition in the heat-treated wood, compared to the control pine. The changes in the structure of the heat-treated wood were confirmed by the attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). Observed quantitative changes in the main wood components, its structural changes, as well as wood decomposition and increased crystallinity of cellulose explain significant changes in both the mechanical properties and the color of heat-treated wood.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Obrabiarek i Podstaw Konstrukcji Maszyn
dc.affiliation.instituteKatedra Chemii
dc.contributor.authorPiernik, Magdalena
dc.contributor.authorWoźniak, Magdalena
dc.contributor.authorPinkowski, Grzegorz
dc.contributor.authorSzentner, Kinga Krystyna
dc.contributor.authorRatajczak, Izabela
dc.contributor.authorKrauss, Andrzej
dc.date.access2025-11-20
dc.date.accessioned2025-11-20T08:11:26Z
dc.date.available2025-11-20T08:11:26Z
dc.date.copyright2022-08-06
dc.date.issued2022
dc.description.abstract<jats:p>The aim of this study was to assess the effect of the duration of heat treatment on changes in the color, as well as the chemical and mechanical properties of Scots pine sapwood. An important element of the research was to obtain the assumed temperature in the entire volume of samples. Quantitative changes in color and its components were recorded, while mechanical properties were determined in tests of compressive strength parallel and perpendicular to the grain, longitudinal tensile strength and modulus of elasticity and impact strength. The novelty of the research was to determine the above-mentioned parameters for twin samples with identical moisture contents. Chemical analyses were conducted on heat-treated wood that was subjected to heat treatment at 220 °C for a period from 1 to 8 h. Extension of the heat treatment duration resulted in the increasing darkening of the wood, as well as a further reduction in the impact strength and tensile strength parallel to the grain by approx. 40 and 50%, respectively, compared to the control wood, but also compared to heat-treated wood for a shorter treatment duration. The heat treatment of wood caused changes in the contents of the wood components, as well as the elemental composition in the heat-treated wood, compared to the control pine. The changes in the structure of the heat-treated wood were confirmed by the attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). Observed quantitative changes in the main wood components, its structural changes, as well as wood decomposition and increased crystallinity of cellulose explain significant changes in both the mechanical properties and the color of heat-treated wood.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_research
dc.description.financecost8896,23
dc.description.if3,4
dc.description.number15
dc.description.points140
dc.description.versionfinal_published
dc.description.volume15
dc.identifier.doi10.3390/ma15155425
dc.identifier.issn1996-1944
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5997
dc.identifier.weblinkhttps://www.mdpi.com/1996-1944/15/15/5425
dc.languageen
dc.relation.ispartofMaterials
dc.relation.pagesart. 5425
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enheat treatment
dc.subject.enPinus sylvestris L.
dc.subject.encolor
dc.subject.enmechanical properties
dc.subject.enATR-FTIR
dc.subject.enchemical composition
dc.titleImpact of the Heat Treatment Duration on Color and Selected Mechanical and Chemical Properties of Scots Pine Wood
dc.title.volumeSpecial Issue Trends on the Wood Materials and Technologies
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue15
oaire.citation.volume15