文档介绍：The effect of microwave treatment on extraction
content of wood
Xianjun Li *, Qunying Mou, Yuan Liu, Yonglin Yan, Zhiyong Cai
Xia Yang Forest Products Laboratory
School of Material Science and Engineering USDA Forest Service
Central South University of Forestry and Technology Madison, USA
Changsha, e-mail: ******@
e-mail: lxjmu@
Abstract— The effect of microwave treatment on the petroleum pressure during vacuum drying on pine wood deresination and
ether extraction content of Masson pine wood was determined. developed a mathematical model to describe the resin
The change in core temperature of samples treated in microwave migrating process from the core to the surfaces [9].
field was investigated. The results show that the content of
petroleum ether extraction of Masson pine can be decreased by According to the above literatures, although some researches
-% by the microwave treatment. The reduction in had eeded in eliminating the excessive resin within pine
petroleum ether extraction content (RC) of specimen increases wood, these deresination treatments have some disadvantages,
with increasing in microwave radiation power and treatment such as low deresination efficiency in the method of physical
time. The RC of specimens initially increases then decreases as deresination, the use of chemical material which i