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Journal of Forestry Research 2013年第1期24卷 137-142页

作者： QUE Ze-li WANG Fei-bin MA Ling-fei furuno takeshi Nanjing Forestry University Research Institute for Sustainable Humanosphere Kyoto University College of Wood Science and Technology Zhejiang A & F University Faculty of Science and Engineering Shimane University

We studied formaldehyde emission from uncoated particleboard with 16-mm thickness using the large chamber and the desiccator method. A chamber of 28.4 m3 was installed to simulate a mobile home. The formaldehyde off-gassing properties of particleboard were evaluated using the chamber. The relationship between the concentration obtained by the chamber and the values by the desiccator test was discussed in this study under different conditions of conditioning day, air exchange, and loading ratio. These two methods were compared and discussed regarding the formaldehyde emission level. Three loading ratios, 0.429 m2/m3, 0.264 m2/m3, and 0.132 m2/m3, were chosen to represent different applications of particleboard products. There was strong correlation between emissions and air exchange rates at equal product-loading ratios in the large chamber, the related coefficient R 2 exceeded 0.90. There was also an indication of a generic correlation between the large chamber and the two-hour desiccator test with a single product designated loading ratio, air exchange rate, and climatic conditions.

关键词： formaldehyde emission particleboard large chamber desiccator

Lignin Characterization of Triploid Clones of Populus tomentosa Carr.

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Forestry Studies in China 2005年第2期7卷 52-56页

作者： Jin Xiao-juan Pu Jun-wen Xie Yi-min takeshi furuno Liu Xin-yu College of Material Science and Technology Beijing Forestry University Beijing 100083 P. R. China College of Paper and Environmental Engineering South China University of Technology Guangzhou 510641 P. R. China Faculty of Science and Engineer Shimane University Matsue 690-8504 Japan

In order to understand the structural characteristics of lignin in triploid clones ofPopulus tomentosa and its changes in the processes of pulping and bleaching, milled wood lignin （MWL）, lignin carbohydrate complex （LCC） and the residual lignin from kraft pulp （KP） and sulfite pulp （SP） were isolated and analyzed by Fourier transform infrared （FTIR） spectrum and ^13C nuclear magnetic resonance （NMR）. The most diagnostic peaks were assigned and the differences were discussed. The spectral patterns reveal that triploid P tomentosa shows the specific features of hardwood from temperate areas, but in the spectrum of FTIR, the strength ratio orAl270 cm^-1 to A1226 cm^-1 is 0.88, higher than the average of hardwood from temperate areas, which will make the lignin delignification more difficult during pulping and bleaching. The LCC from triploid P tomentosa is mainly composed of xyloglucan and glucuronic acid, and other glucides have much lower ratio. In LCC FTIR, there are three peaks at 1 427, 1 329 and 1 046 cm^-1, indicating that both semi-cellulose and cellulose could exist in LCC, and that there might be relationships between cellulose and lignin. Compared with the residual lignin from KP and SP, the condensed structure in KP is more than that in SP.

关键词： triploid clones of Populus tomentosa Carr. FTIR spectrum, ^13C-NMR MWL LCC

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阻燃处理木材燃烧残余物的热分解特征

北京林业大学学报 2006年第3期28卷 133-138页

作者：赵广杰罗文圣古野毅任强北京林业大学材料科学与技术学院日本岛根大学综合理工学部

为了弄清楚阻燃处理木材燃烧残余物的热分解特征，将阻燃处理木材在模拟的典型火灾中燃烧后，取距燃烧表面不同位置的试样，采用热失重法研究了阻燃处理木材燃烧残余物的热分解过程，结果表明：①阻燃处理木材及其燃烧残余物的热分解开... 详细信息

为了弄清楚阻燃处理木材燃烧残余物的热分解特征，将阻燃处理木材在模拟的典型火灾中燃烧后，取距燃烧表面不同位置的试样，采用热失重法研究了阻燃处理木材燃烧残余物的热分解过程，结果表明：①阻燃处理木材及其燃烧残余物的热分解开始温度没有明显的差别，未处理木材燃烧残余物的热分解开始温度比未燃烧木材高；②阻燃处理木材中阻燃剂的热分解峰值温度为200℃，随着燃烧过程的进行，归属于阻燃剂的峰消失；③阻燃处理木材燃烧残余物热分解温度曲线中，在230℃附近归属于半纤维素的峰消失，在210～240℃出现了一个缓慢的肩；④阻燃处理木材及其燃烧残余物的质量损失速度曲线主峰温度比未处理木材及其燃烧残余物降低100℃，质量损失速度大幅度减少；⑤阻燃处理木材在600℃时的热分解残存质量比未处理木材显著增大，随着燃烧时受热温度的增高，燃烧残余物热分解的残余质量显著增大；⑥阻燃处理木材及其燃烧残余物的热分解温度区间，与未处理木材及其燃烧残余物存在显著差异．

关键词：阻燃处理木材燃烧残余物热分解特征热重量分析法

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多元羧酸与木材酯化反应特征和交联反应参数

林业科学 1998年第6期34卷 93-98页

作者：方桂珍李坚孔漫上源澈古野毅东北林业大学中国医学科学院药物研究所岛根大学

本研究采用以多元羧酸类化合物为酯化剂，以无机盐为催化剂的交联体系。这一体系是新型的、水溶的、无毒害、无污染、木材交联反应未采用过的非甲醛系试剂交联体系。本文采用ＦＴＩＲ和ＣＰ／ＭＡＳ１３ＣＮＭＲ的光谱法确定了多元羧酸... 详细信息

本研究采用以多元羧酸类化合物为酯化剂，以无机盐为催化剂的交联体系。这一体系是新型的、水溶的、无毒害、无污染、木材交联反应未采用过的非甲醛系试剂交联体系。本文采用ＦＴＩＲ和ＣＰ／ＭＡＳ１３ＣＮＭＲ的光谱法确定了多元羧酸类化合物与木材交联反应产物的形成特征和交联反应参数。

关键词：多元羧酸类交联反应酯化度羰基比木材

多元羧酸与木材酯化反应的固体核磁共振谱CPMAS^(13)CNMR的表征

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林业科学 2001年第2期37卷 108-111页

作者：方桂珍李坚孔漫上原徹古野毅东北林业大学哈尔滨150040 中国医学科学院药物研究所北京100001 岛根大学

本研究要用以多元羧酸为酯化剂 ,以无机盐为催化剂的交联体系。这一体系是新型的、水溶的、无毒害、无污染的非甲醛系试剂并联体系。本文采用固体核磁共振谱CP MAS1 3 CNMR ,测定木材主要组分酯化反应的CP MAS1 3 CNMR波谱 ,归属主要谱... 详细信息

本研究要用以多元羧酸为酯化剂 ,以无机盐为催化剂的交联体系。这一体系是新型的、水溶的、无毒害、无污染的非甲醛系试剂并联体系。本文采用固体核磁共振谱CP MAS1 3 CNMR ,测定木材主要组分酯化反应的CP MAS1 3 CNMR波谱 ,归属主要谱线 ,分析了多元羧酸与木材交联反应过程中主要组分的化学结构变化。结果表明 :酯化反应后 ,羧基碳的比率增加 ;芳香族碳和羟基碳的比率减少 ;烷基碳的变化随着羧基碳的变化而改变。

关键词：多元羧酸木材酯化反应固体核磁共振谱化学成分科学结构