Varnish Adhesion Performance of Densified and Thermally Post-treated Beech and Pine Wood

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dc.contributor.authorAi, Huseyin Pelit
dc.contributor.authorSonmez, Abdullah
dc.date.accessioned2026-07-01T11:39:33Z
dc.date.available2026-07-01T11:39:33Z
dc.date.issued2025
dc.departmentDüzce Üniversitesi
dc.description.abstractThe adhesion strength was studied for water-based nano-varnishes and pine (Pinus sylvestris L.) woods. Specimens were thermomechanically densified at different compression ratios (20% and 40%) and temperatures (110 degrees C and 150 degrees C), and subsequently thermally treated at 190, 200, and 210 degrees C. One-component (OWB) and two-component (TWB) nano-varnishes were applied, and adhesion strength was evaluated using the pull-off test. Results revealed that the modification processes greatly influenced adhesion, with distinct effects depending on wood species. For untreated beech, densification improved adhesion strength, whereas for pine, it either reduced or did not cause a pronounced change. A primary finding was that thermal treatment decreased adhesion strength for all specimens in a temperature-dependent manner; higher temperatures led to progressively lower adhesion. This decline was more pronounced in densified specimens (especially beech wood). The reason was attributed to the cohesive failure within the weakened wood substrate rather than adhesive failure at the varnish-wood interface. Across all treatment conditions, TWB varnish exhibited superior adhesion compared to OWB. The study concluded that densification may have a species-specific effect, while thermal treatment fundamentally reduces wood surface strength and, consequently, varnish adhesion.
dc.identifier.doi10.15376/biores.20.4.10823-10837
dc.identifier.endpage10837
dc.identifier.issn1930-2126
dc.identifier.issue4
dc.identifier.scopus2-s2.0-105022093392
dc.identifier.scopusqualityN/A
dc.identifier.startpage10823
dc.identifier.urihttps://doi.org/10.15376/biores.20.4.10823-10837
dc.identifier.urihttps://hdl.handle.net/20.500.12684/23356
dc.identifier.volume20
dc.identifier.wosWOS:001672299500013
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherNorth Carolina State Univ Dept Wood & Paper Sci
dc.relation.ispartofBioresources
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260623
dc.subjectAdhesion Strength
dc.subjectBeech Wood
dc.subjectDensification
dc.subjectPine Wood
dc.subjectThermal Freatment
dc.subjectVarnish
dc.titleVarnish Adhesion Performance of Densified and Thermally Post-treated Beech and Pine Wood
dc.typeReview Article

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