Effects of heat treatment on some properties of MDF (medium-density fiberboard). Issue 3 (27th May 2017)

• Record Type: Journal Article
• Authors: Ates, Saim; Kara, Hasimet R.; Olgun, Cag˘ri; Ozkan, Osman E.
• Is Part Of: Wood material science & engineering. Volume 12:Issue 3(2017)
• Page Start: 158
• Page End: 164
• Publication Date: 2017-05-27
• Subjects: Fiberboard -- physical and mechanical properties -- formaldehyde emission -- heat treatment; Wood -- Periodicals; Wood products -- Periodicals; Building, Wooden -- Periodicals; 624.184
• DOI: 10.1080/17480272.2015.1073176
• Languages: English
• ISSNs: 1748-0272

Abstract

Abstract: This work investigated some mechanical, physical and free formaldehyde emission properties of heat-treated MDF. For this purpose, MDF panels were subjected to varying heat treatment temperatures (155°C, 165°C and 175°C), durations (2.5 h., 3.5 h. and 4.5 h.) and waiting times after hot pressing (30 min., 120 min. and 600 min). Thickness swelling (TS), water absorption (WA), free formaldehyde emission (FFE), bending strength (BS), modulus of elasticity (MOE), tensile strength perpendicular to fibers (TSPF) for treated and untreated samples were tested and evaluated statistically. Consequently, after the heat treatment values of tensile strength, bending strength and modulus of elasticity were almost negatively affected relatively, but the thickness swelling and water absorption and quantities of free formaldehyde were improved positively of MDF samples.