Research Information System
ORENKO-International Forest Products Congress, Trabzon, Turkey, 25 - 29 September 2018
USE OF SILICONE BASED CHEMICALS IN
THE MEDİUM DENSITY FIBERBOARD PRODUCTION
Meryem ONDARAL, Mustafa USTA
My
Institute/Company
Address,
City, Country
mondaral@ktu.edu.tr; usta@ktu.edu.tr
Sedat ONDARAL
Karadeniz
Technical University, Department of Forest Industry Engineering
61080
Trabzon, Turkey
ondaral@ktu.edu.tr
ABSTRACT
In this
study, the use of silicone based chemicals were investigated as water repellent
agent for the production of medium density fiberboard (MDF). Two different
chemicals (Dow Corning 87 and Xiameter PM-200) were applied to fibers by
spraying together with melamine ürea formaldehyde resin (MUF) in different
proportions (0.5%, 1.0% and 3.0%). Addition to the water uptake and swelling
properties, the change in the tensile strength, bending strength and elasticity
modulus of MDFs were investigated.
The
results showed that fiberboards produced with these chemicals had lower water
absorption and swelling in thickness compared with MDFs produced with only MUF
resin. In addition to closing the hydroxyl groups of the fibers, the water
repellency hydrophobic structure protects the fiber-fiber bonds against water. It
was found that fibreboard produced with these chemicals had better tensile
strength, bending strength and elastic modulus depending on addition level.
KEYWORDS: Medium density fibreboard,
hydrophobicity, silicon based chemical, water repellence