THE QUALITY COMPARISON OF PARTICLEBOARDS PRODUCED FROM HEARTWOOD AND SAPWOOD OF EUROPEAN LARCH

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dc.authoridbardak, timucin/0000-0002-1403-1049
dc.authoridBARDAK, selahattin/0000-0001-9724-4762
dc.contributor.authorBardak, Selahattin
dc.contributor.authorNemli, Gokay
dc.contributor.authorBardak, Timucin
dc.date.accessioned2025-03-23T19:26:03Z
dc.date.available2025-03-23T19:26:03Z
dc.date.issued2019
dc.departmentSinop Üniversitesi
dc.description.abstractIn this paper, the impacts of heartwood and sapwood usage on the physical, mechanical, and surface properties and formaldehyde emission of particleboard are investigated. European Larch (Larix decidua) trees are chosen as a raw material. The logs are divided into three segments: sapwood, heartwood and total wood. The highest amounts of cellulose (51,54%), and hemicelluloses (22,24%) in the sapwood, followed by total wood, and the heartwood, respectively. However, the highest amount of lignin (30,54%) was found in the heartwood. The highest extractives values are obtained from heartwood, followed by total wood, and the sapwood, respectively. While the lowest pH value (3,03) is found in heartwood, the sapwood samples provide the highest values (4,95). The highest ash (0,49%) content and amount of condensed tannin (13,89%) are extracted from heartwood, followed by total wood, and sapwood, respectively. The test panels manufactured from sapwood have the smoothest surface (7,49 mu m (R-a), 48,86 mu m (R-y), and 35,12 mu m (R-z)) and the lowest contact angles (67,8 degrees), while the roughest surface (14,20 mu m (R-a), 68,05 mu m (R-y), and 50,02 mu m (R-z)) and highest contact angle (96,9 degrees) are obtained from the panels of heartwood. The thickness swelling (19,88%) and formaldehyde emission (7,28%) values of the panels manufactured from heartwood are significantly lower than the panels manufactured from the total wood and sapwood. The highest modulus of rupture (MOR), modulus of elasticity (MOE), and internal bond (IB) values are observed on sapwood, respectively, 15,60 MPa (MOR), 2201 MPa (MOE), and 0,523 MPa (IB). These mechanical strength values (MOR, MOE, and IB) are followed by total wood, and the heartwood, respectively. Surface smoothness and wettability of the particleboards manufactured from sapwood are better than those of total wood and heartwood.
dc.identifier.doi10.4067/S0718-221X2019005000407
dc.identifier.endpage520
dc.identifier.issn0718-221X
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85071629464
dc.identifier.scopusqualityN/A
dc.identifier.startpage511
dc.identifier.urihttps://doi.org/10.4067/S0718-221X2019005000407
dc.identifier.urihttps://hdl.handle.net/11486/4615
dc.identifier.volume21
dc.identifier.wosWOS:000488594700007
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherUniv Bio-Bio
dc.relation.ispartofMaderas-Ciencia Y Tecnologia
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectContact angle
dc.subjectformaldehyde emission
dc.subjectLarix decidua
dc.subjectmechanical properties
dc.subjectphysical properties
dc.subjectroughness
dc.titleTHE QUALITY COMPARISON OF PARTICLEBOARDS PRODUCED FROM HEARTWOOD AND SAPWOOD OF EUROPEAN LARCH
dc.typeArticle

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