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Performance of particleboard manufactured using air-injection press I: effects of air-injection press on preventing blowout of board manufactured from low-moisture particles |
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| Authors: | Hiroshi Saotome Hideaki Korai Takahiko Iida Tomoko Hamano Kensuke Kawarada Masaharu Ohmi |
| Institution: | 1. Forestry and Forest Products Research Institute, Tsukuba, 305-8687, Japan 2. Tokyo Metropolitan Industrial Technology Research Institute, Tokyo, 135-0064, Japan 3. Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, 183-8509, Japan |
| Abstract: | An air-injection press (AIP) was developed to prevent accidental blowouts of boards during production. In this study, the effects of the AIP on preventing blowouts were investigated by artificially creating a blowout-prone condition, and the press was shown to be effective in preventing blowouts. The modulus of rupture of the boards was almost constant irrespective of pressing time. Longer pressing time resulted in higher internal bond strength when pressed at 170 °C. The thickness swelling of the boards pressed at 170 or 190 °C was almost uniform irrespective of pressing time, and the manufactured boards showed performance similar to those manufactured with an ordinary press. The AIP prevented blowouts sufficiently even when the pressure of the injected air was reduced, and this reduction did not adversely decrease the performance of the boards. Air injection reduced formaldehyde emissions from the board. |
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