期刊论文

中文

北京林业大学学报

1000-1522

2009

S1

104-107

科技部林业公益性行业科研专项(200704020) 湖南省自然科学基金项目(07JJ6166) 湖南省教育厅优秀青年基金项目(08B090)

本校为第一机构

该文采用傅立叶变换红外光谱(FTIR)仪和X射线衍射(XRD)仪较系统地研究了高温热处理对马尾松木材FTIR和XRD特征的影响规律。结果表明:随着热处理温度的升高和处理时间的延长,木材红外吸收光谱中羟基吸收峰的强度明显降低,羰基吸收峰的强度略呈降低趋势,有利于木材尺寸稳定性的增加;在160~220℃的热处理范围内,马尾松木材纤维素结晶度随着温度的增加呈现出先增加、后减小、再增加的变化规律;当热处理温度为200℃时,随着时间的延长,马尾松木材的结晶度整体呈现降低趋势,但处理时间为2 h时,木材的结晶度略有增加;除220℃热处理4 h外,其他高温热处理工艺对马尾松木材纤维素结晶区宽度的影响不明显,其...

Characteristics of Fourier Transform Infrared Spectroscopy(FTIR) and X-ray diffraction(XRD) for heat-treated Masson pine wood were studied using FTIR spectrometer and XRD instrument.The results showed that: 1) with the increases of temperature and time during the heating treatment,the intensity of hydroxyl absorption peak in the infrared absorption spectrogram decreased significantly,and that of carbonyl decreased slightly.These changes were beneficial to the increase of wood dimensional stability.2) When the heating treatment temperature chang...