Development of an air-injection press for preventing blowout of particleboard (III): effects of pressing temperature on board performance

An air-injection press, which has holes punched in the heating plates, injects high-pressure air through the holes of one plate into particleboards and discharges the air and vapor through the other plate during press heating. The press can manufacture particleboards from high-moisture particles by...

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Bibliographic Details
Published in:Journal of wood science 2012-06, Vol.58 (3), p.216-221
Main Authors: Korai, Hideaki, Ling, Nan, Saotome, Hiroshi, Iida, Takahiko, Hamano, Tomoko, Kawarada, Kensuke
Format: Article
Language:English
Subjects:
Air injection
Biomedical and Life Sciences
Blowouts
Bond strength
Bonding strength
Characterization and Evaluation of Materials
Heating
Life Sciences
Materials Science
Modulus of rupture
Original Article
Particle board
Pressing
Wood Science & Technology
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Summary:An air-injection press, which has holes punched in the heating plates, injects high-pressure air through the holes of one plate into particleboards and discharges the air and vapor through the other plate during press heating. The press can manufacture particleboards from high-moisture particles by preventing blowouts of the boards. In this study, the effects of pressing temperature were investigated by pressing boards at 190, 210, and 230°C. The internal bond strength increased from 0.43 to 0.60 MPa by raising the temperature from 190 to 210°C, but did not increase further when the temperature was raised to 230°C. Raising the temperature from 190 to 210°C also helped improve the thickness swelling. No relationship was found between the modulus of rupture and pressing temperature.
ISSN:1435-0211
1611-4663
DOI:10.1007/s10086-011-1246-2