Mburu Francis, Dumarçay Stéphane, Huber Françoise, Petrissans Mathieu, Gérardin Philippe
Laboratoire d'Etudes et de Recherches sur le Matériau Bois, UMR INRA 1093, Université Henri Poincaré Nancy 1, Faculté des Sciences et Techniques, BP 239, 54506 Vandoeuvre-les-Nancy, France.
Bioresour Technol. 2007 Dec;98(18):3478-86. doi: 10.1016/j.biortech.2006.11.006. Epub 2006 Dec 29.
Heat treatment of Grevillea robusta, a tropical wood species of low natural durability, was carried-out under inert conditions to improve its decay resistance. Resistance of heat treated samples was evaluated by malt agar block tests after three months of exposure to several wood rotting fungi. Also resistance of heat treated wood against termites was tested in the laboratory and in the field. Results showed that durability against fungi and termites was greatly improved after treatment. There was a good correlation between decay resistance and mass loss due to thermal treatment. Microscopic, FTIR and (13)C MAS NMR analysis were performed to characterize wood chemical and anatomical modifications that occur after treatment to understand the reasons of the durability improvement.
银桦是一种天然耐久性较低的热带木材，在惰性条件下进行热处理以提高其抗腐性。将热处理后的样品暴露于几种木材腐朽真菌三个月后，通过麦芽琼脂块试验评估其抗性。此外，还在实验室和野外测试了热处理木材对白蚁的抗性。结果表明，处理后木材对真菌和白蚁的耐久性大大提高。抗腐性与热处理导致的质量损失之间存在良好的相关性。进行了显微镜、傅里叶变换红外光谱（FTIR）和碳-13交叉极化/魔角旋转核磁共振（¹³C MAS NMR）分析，以表征处理后木材发生的化学和解剖学变化，从而了解耐久性提高的原因。
