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3072990 
Journal Article 
Recycling wood composite panels: Characterizing recycled materials 
Wan, H; Wang, XM; Barry, A; Shen, J 
2014 
Yes 
BioResources
ISSN: 1930-2126 
NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI 
RALEIGH 
9 
4 
7554-7565 
English 
WOS:000345396900142 
Downgraded medium density fiberboard (MDF), particleboard (PB), and oriented strandboard (OSB) panels were individually subjected to steam explosion treatment. Downgraded MDF and PB panels were separately treated with thermal chemical impregnation using 0.5% butanetetracarboxylic acid (BTCA). And downgraded PB panels were processed with mechanical hammermilling. The pH, buffer capacity, fiber length, and particle size of these recycled materials were evaluated. After the steam explosion and thermal chemical impregnation treatments, the pH and buffer capacity of recycled urea formaldehyde resin (UF)-bonded MDF and PB furnishes increased and the fiber length decreased. The hammermilling of recycled PB was less likely to break particles down into sizes less than 1 mm(2). 
Recycling; MDF; PB; OSB; Steam explosion; Impregnation thermal treatment; Hammermill; pH; Buffer capacity