两种干燥环境下思茅松干燥前后抽提物变化的初步研究

采用传统的化学分析和高效液相色谱分析方法,研究思茅松木材干燥前后抽提物成分的变化情况.结果表明:思茅松木材经高温干燥,不仅会发生水分扩散等物理变化,还会发生裂解等化学变化.认为这是由于可挥发性化合物在干燥过程中随水分的蒸发和迁移而从木材中挥发出来,此外,干燥温度升高使木材提取物中部分成分由不可裂解物质变成了可裂解物质,并且从未材中挥发出来.

Primary Study on Changes of Wood Extract of Pinus kesiya var. langbianensis. after Two Kinds of Drying Environment

By using traditional chemical analysis and HPLC,the author has studied the extract of Pinus kesiya var.langbianensis.samples before and after drying.The results show that the high temperature drying to the wood is a combination process of chemical and physical changes.The wood undergoes not only such physical changes as diffution of water,but also a series of pyrolysis changes.It is believed that voc is evaporatived with moisture evaporation and migration during wood drying.When the temperature rises,extract of some components can be by not cracking into the pyrolysis,and volatile out.