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Effects of surface laminate type and recycled fiber content on properties of three-layer medium density fiberboard

Authors
노정관Muhammad Adly Rahandi LubisMin-Kug HongChang Hyun SohnByung-Dae Park
Issue Date
May-2020
Publisher
Taylor and Francis Ltd.michael.wagreich@univie.ac.at
Citation
Wood Material Science and Engineering, v.15, no.3, pp.163 - 171
Indexed
SCIE
SCOPUS
Journal Title
Wood Material Science and Engineering
Volume
15
Number
3
Start Page
163
End Page
171
URI
https://scholarworks.bwise.kr/gnu/handle/sw.gnu/6631
ISSN
1748-0272
Abstract
High global production of medium-density fiberboard (MDF) in recent years could generate an equal quantity of waste MDF at the end of its service life, requiring recycling of waste MDF instead of landfilling or incineration. This study investigated effects of the addition of recycled fiber (RF) obtained from surface laminated MDFs with three different materials to the properties of three-layer recycled MDF (rMDF). Three types of surface laminates such as low-pressure laminate, polyethylene terephthalate, and polyester coating were hammer milled, and then went through a patent-pending fiber recovery system to obtain the resultant RFs that were added to the core layer of rMDF. These RFs at three contents (10, 20, and 30%) were blended with 12% of urea-formaldehyde (UF) resin prior to hot-pressing. Statistical analysis showed that the best internal bonding strength, modulus of rupture, and modulus of elasticity of rMDF panels were obtained for LPL-rMDF with a 20% RF content. Thickness swelling, water absorption, and formaldehyde emission of rMDF were reduced by increasing the RF content. These findings suggest that a minimum RF content of 20% can be replaced with virgin fibers for the rMDF manufacture, indicating the feasibility of recycling waste laminated MDF into three-layer rMDF.
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건설환경공과대학 (인테리어재료공학과)
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