Improving fire retardancy of fast growing wood by coating with fire retardant and surface densification
✍ Scribed by Subyakto; Takeshi Kajimoto; Toshimitsu Hata; Shigehisa Ishihara; Shuichi Kawai; Hideo Getto
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 115 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0308-0501
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✦ Synopsis
Fire retardant fast-growing wood product was developed by coating with fire retardant and densifying the surface of wood. Trimethylol melamineformaldehyde resin mixed with phosphoric acid was coated on the wood surface, preheated and followed by hot pressing. Effects of the amount of coating, preheating temperature, and densifying ratio on the fire retardancy of sugi (Cryptomeria japonica D. Don) wood, and pressing temperature and pressing time on that of albizia (Paraserianthes falcataria Becker) wood were discussed. Bending strength, creep performance under fire and fire retardancy were evaluated. The results showed that the treatments improved the fire retardancy of woods without reduction in the bending strength.