古代饱水木材脱水定型机理探讨

Discussion on the dehydration mechanism of waterlogged archaeological wood

从木材干缩的一般理论出发,探讨了古代饱水木材脱水变形的主要影响因素。阐述了古代饱水木材与新鲜木材的区别,提出饱水木材发生形变的主要影响因素同现代木材一样,是由于氢键缔合的结合水挥发,从而引起干缩和开裂。要保持脱水后的定型一方面要加固细胞壁外壁,更重要的从细胞壁内壁进行加固。

According to investigation of the fresh wood science,the main effects of dehydration stabilization of archaeological waterlogged wood has been studied.Based on comparing fresh wood and archaeological waterlogged wood,crack and shrinkage occur on archaeological waterlogged wood as well as on the fresh wood and the main cause is due to rupture of the Hydrogen bond.To keep stabilization when archaeological waterlogged wood was dried,the cell wall must be reinforced from the outside to the inside,reinforcement from the inside of the cell wall is especially important.