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http://dx.doi.org/10.5658/WOOD.2015.43.3.327

Vacuum Pressure Treatment of Water-Soluble Melamine Resin Impregnation for Improvement of Dimensional Stability on Softwoods  

Oh, Seung-Won (Department of wood Science & Technology, Institute of Agriculture Science & Technology, Chonbuk National University)
Park, Hee-Jun (Department of Housing Environmental Design, Chonbuk National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.43, no.3, 2015 , pp. 327-333 More about this Journal
Abstract
To measure the dimensional stability of three softwoods by vacuum pressurization of water soluble melamine-formaldehyde (MF) resin impregnation process, properties of resin treated compressed woods (compregs) were measured after impregnating the water soluble MF resin into three coniferous wood species for different impregnation times and resin concentrations. As the resin concentration was higher and impregnation time was longer, coefficients of volumetric shrinkage and anti-volumetric swelling efficiency increased, but coefficients of volumetric swelling, anti-volumetric swelling efficiency and absorption decreased. Also, weight percent gain increased remarkably as the resin concentration was high, but there was no uniform relationship with impregnation time.
Keywords
dimensional stability; vacuum press; compreg; coefficient of volumetric shrinkage; coefficient of volumetric swelling;
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