Effects of sealed press on improving the properties of particleboard |
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Authors: | Hideaki Korai Nan Ling |
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Affiliation: | (1) Department of Construction Materials, University of Suttgart, Pfaffenwaldring 4, 70569 Stuttgart, Germany |
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Abstract: | To improve the properties of particleboard, boards were produced using a sealed press. With the sealed press, boards were processed under high-temperature and high-pressure steam. This increased the saturation temperature, causing a dramatic rise in temperature inside the board, faster curing of the binder, and a shorter pressing time. The boards were bonded with urea formaldehyde resin, melamine urea formaldehyde resin, or poly(methylene diphenyl diisocyanate) (PMDI). The sealed press improved the internal bond strength and thickness swelling of boards regardless of the binder used during the reduced pressing time. The increased bonding strength improved the board properties, allowing PMDI with a lower resin content to be used for bonding the boards. |
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