| 不同预处理方法对稻秸纤维表面化学特性及稻秸纤维板性能的影响 |
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| 引用本文： | 潘明珠,连海兰,周定国.不同预处理方法对稻秸纤维表面化学特性及稻秸纤维板性能的影响[J].林产工业,2006,33(4):24-26. |
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| 作者姓名： | 潘明珠 连海兰 周定国 |
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| 作者单位： | 南京林业大学木材工业学院,南京,210037 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
木材(竹材)／农业剩余物纤维复合材料制造技术,课题编号为2002AA245181。 |
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| 摘 要： | 通过水热、2％乙酸、2％Na2SO3及2％NaHSO3预处理秸秆原料,再将原料分离成纤维,并试制了相应的秸秆纤维板,对比分析了4种预处理方法对秸秆纤维的表面化学特性及稻秸纤维板性能的影响。结果表明,预处理方法对秸秆纤维表面的主要官能团影响不大,但乙酸预处理能显著地降低稻秸纤维表面的pH值,有利于脲醛树脂胶黏剂和纤维形成良好的胶合界面,从而提高秸秆纤维板的性能。
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| 关 键 词： | 稻秸 预处理 中密度纤维板 |
| 文章编号： | 1001-5299(2006)04-0024-03 |
| 修稿时间： | 2005年10月28 |
Effects of Different Treatments on Chemical Characteristics of Straw Fiber and Properties of Straw Fiberboard |
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| PAN Ming-zhu,LIAN Hai-lan,ZHOU Ding-guo.Effects of Different Treatments on Chemical Characteristics of Straw Fiber and Properties of Straw Fiberboard[J].China Forest Products Industry,2006,33(4):24-26. |
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| Authors: | PAN Ming-zhu LIAN Hai-lan ZHOU Ding-guo |
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| Abstract: | Surface chemical characteristics of straw fiber have great effect on the properties of interfa-cial conglutination between straw fiber and adhensive. Rice straw was treated with four different methods-hot water, acid, sodium sulfite, and sodium hydrogen sulfite treatment in this research. Results showed that main chemical group of straw fiber, under the four different treatments, were not obviously changed. The acid treatment reduced pH values of straw fibers, and had a significant effect on improving the internal bond strength of straw fiberboard. The modulus of rupture and modulus of elasticity were not obviously improved with four different treatments. The thickness swelling of straw fiberboard treated with different ways was higher than that of standard values. It was concluded that acid treatment was optimum for producing good performance straw fiberboard. |
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| Keywords: | Rice straw Different treatments Medium density fiberboard |
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