Effect of Calcite Addition on Technical Properties and Reduction of Formaldehyde Emissions of Medium Density Fiberboard

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dc.authoridcamlibel, osman/0000-0002-8766-1316
dc.contributor.authorCamlibel, Osman
dc.date.accessioned2025-01-21T16:37:53Z
dc.date.available2025-01-21T16:37:53Z
dc.date.issued2021
dc.departmentKırıkkale Üniversitesi
dc.description.abstractPhysical, mechanical, and formaldehyde emission properties were studied for medium density fiberboard (MDF) produced with oak (75%) and pine (25%) fibers that had been mechanically refined in the presence of calcite particles. The calcite slurry was prepared at two levels of solids, 1.5% and 3% (10 and 20 kg.m-3). Chips were cooked for 4 min at 185 degrees C, under 8 bar vapor pressure in an Andritz defibrillator. 1.8% liquid paraffin, 0.72% ammonium sulphate solution, and 11% urea-formaldehyde were added by percentage based on oven-dried wood fibers in the blowline at the exit of the defibrator. The fibers were dried to 11% moisture content. MDF boards (2100 mm x 2800 mm x 18 mm) were created using a continuous hotpress process. The addition of calcite in the course of MDF production resulted in improved physical properties, such as thickness swelling (ThS 24 hours) and water absorption (WA 24 hours). MDF boards prepared with calcite exhibited higher internal bond (IB), modulus of rupture (MOR), and modulus of elasticity (MOE). Resistance to axial withdrawal of screw also was increased by addition of 3% calcite. In addition, the lowest levels of formaldehyde emission were observed for MDF prepared with calcite at the 3% level.
dc.identifier.doi10.15376/biores.16.2.3718-3733
dc.identifier.endpage3733
dc.identifier.issn1930-2126
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85111905478
dc.identifier.scopusqualityQ3
dc.identifier.startpage3718
dc.identifier.urihttps://doi.org/10.15376/biores.16.2.3718-3733
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24561
dc.identifier.volume16
dc.identifier.wosWOS:000647769700040
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_20241229
dc.subjectMDF; Fibreboard; Calcite filler; Technical properties; Formaldehyde emission
dc.titleEffect of Calcite Addition on Technical Properties and Reduction of Formaldehyde Emissions of Medium Density Fiberboard
dc.typeArticle

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