Analysing the changes of the components of steam treated wood chips by infrared

Cai Liping Deng Weiping Liu Zhiqun

doi:10.19455/j.mcgy.1993.01.003

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Analysing the changes of the components of steam treated wood chips by infrared
1. Northeast Forestry University
2. 东北林业大学,哈尔滨,150040
Issue 1, Pages: 11-14(1993)
DOI： 10.19455/j.mcgy.1993.01.003

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[1]蔡力平,邓卫平,刘志群.用红外光谱分析刨花蒸汽处理后成分的变化[J].木材工业,1993(01):11-14.

Cai Liping Deng Weiping Liu Zhiqun. Analysing the changes of the components of steam treated wood chips by infrared. [J]. China Wood Industry (1):11-14(1993)
[1]蔡力平,邓卫平,刘志群.用红外光谱分析刨花蒸汽处理后成分的变化[J].木材工业,1993(01):11-14. DOI： 10.19455/j.mcgy.1993.01.003.

Cai Liping Deng Weiping Liu Zhiqun. Analysing the changes of the components of steam treated wood chips by infrared. [J]. China Wood Industry (1):11-14(1993) DOI： 10.19455/j.mcgy.1993.01.003.

摘要

用红外光谱法分析了云杉和白桦刨化蒸汽处埋后成分的变化。红外谱图不出了蒸汽处埋后刨花中的半纤维素和羟基比未处理的减少了,这是蒸汽处理改善刨花板尺寸稳定性的主要原因。红外谱图还示出了在同样的蒸汽处理条件下,白桦中半纤维素和羟基的减少程度大于云杉的减少程度,因此蒸汽处理后白桦刨花板尺寸稳定性的改善程度大于云杉刨花板的改善程度。

Abstract

Highly dimensionally stable particleboards were experimentally made from chips treated with saturated steam at elevated pressure. The changes of the components of steam treated wood chips of spruce and birch were analysed by infrared in this paper. Infrared spectra demonstrated that the hemicelluloses and hydroxy in steam-treated chips were less than that in untreated chips. This is the main reasons why steam treatment could improve particleboard stability. And also the infrared spectra showed that the reduction of the hemicelluloses and hydroxy in birch chip was more than that in spruce chip under the same condition of steam treatment. Therefore, the stability improvement of steam treated birch particleboard was much greater than that of spruce.