Dimensional Stability of Bamboo Particleboards Made from Acetylated Particles *1

Bamboo (Phyllostachys bambusoides Sieb et Zucc.) particales were acetylated with acetic anhy­ dride along, and the acetylated particles were pressed into particleboards using a phenolformalde­ hyde adhesive. In liquid-water tests, boards made from acetylated particles swelled at a much slower rate and to a less extent than did control boards after 5 cycles of wetting and oven drying. In humidity tests, all boards made from acetylated particles had much lower equilibrium moisture contents than the control boards.