Emission mechanism of organic acids emitted from wood based material

众所周知，室内空气中的有机酸如甲酸和乙酸会导致金属和无机颜料制成的文物劣化。因此，开发了木材和木材胶粘剂中甲酸和乙酸等有机酸的新测量方法。从树脂的化学结构来看，有些木材胶粘剂会释放出高浓度的醋酸。木材中甲酸和乙酸的排放量随着热处理的进行而增加。有机酸释放机理的确定表明，乙酸的形成是由于木材中α-纤维素的热分解所致。

It is well known that organic acids such as formic and acetic acids in indoor air cause the deterioration of cultural artifacts made of metal and inorganic pigment. Thus, novel measurement method of organic acids such as formic and acetic acid emitted from wood and wood adhesives were developed. There were some wood adhesives emitted high concentrations of acetic acid from chemical structure of resin. Emissions of formic and acetic acids from wood were increased with the heat treatment of wood. Determination of emission mechanism of organic acids resulted that the thermal decomposition of α-cellulose in wood cause the acetic acid formation.