| 非木质刨花板的水分扩散系数 |
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| 引用本文： | 谭海彦,濮安彬,翁向丽. 非木质刨花板的水分扩散系数[J]. 东北林业大学学报, 2000, 28(2): 29-30 |
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| 作者姓名： | 谭海彦 濮安彬 翁向丽 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 基金项目： | 国家自然科学基金资助项目!（39570575） |
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| 摘 要： | 用非线性单纯形法研究了４种农作物秸秆（严麻屑、麦草、稻草、豆秸）为材料刨花板的水分扩散系数。并用Ｖｉｓｕａｌ Ｂａｓｉｃ编制的计算机程序求出了精确的扩散系数。结果表明：环境温度和刨花的铺装方向是影响护散系数的主要因素，随着环境温度的提高。水分扩散系数明显增大；平行于板面的扩散系数高于垂直板面的扩散系数。环境湿度对刨花板水分扩散系数的影响主要取决于原料的种类，并且对同一种原料而言，随着环境湿度的增加其护散系数有下降的趋势。
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| 关 键 词： | 非木质刨花板 水分扩散系数 秸秆 数值方法 |
Moisture Diffusion Ceefficieat of Non-wood Particleboard |
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| Tan Haiyan,Pu Anbin,Weng Xiangli. Moisture Diffusion Ceefficieat of Non-wood Particleboard[J]. Journal of Northeast Forestry University, 2000, 28(2): 29-30 |
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| Authors: | Tan Haiyan Pu Anbin Weng Xiangli |
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| Affiliation: | Northeast Forestry University. Harbin 150040. P. R. China |
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| Abstract: | The moisture diffusion coefficient of particleboard from 4 kinds of crops straw(flax bits. wheat stalks. straw, than stalks) was studied by non-linear simplex technique. Accurate diffusion coefficent was calculated out by Visual Basic program. The results showed that the environmental temperature and the direction of particle paving were key factors influencing diffusion coefficient. With environmental temperature increasing, the moisture diffusion coefficient enlarge evidently, and the diffusion efficient parrel to the particleboard surface is higher than that verticle to the particleboard surface. The influence of environmental humidity on moisture diffusion of particleboard mainly depended on the material types. and its diffusion coefficient shad the tendency of decrease with environmental temperature increasing. |
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| Keywords: | Non-wood particleboard Moisture diffusion coefficient Non-linear simplex method |
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