| Water Sorption Behaviors of Five Woods above Fiber Saturation Point |
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| 引用本文： | HOU Zhuqiang GUAN Ning ZHANG Lifei ZHANG ShouhuaiResearch Institute of Wood Industry. Chinese Academy of Forestry,Beiiine 100091. P.R. China. Water Sorption Behaviors of Five Woods above Fiber Saturation Point[J]. 中国林业科技(英文版), 2003, 0(2) |
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| 作者姓名： | HOU Zhuqiang GUAN Ning ZHANG Lifei ZHANG ShouhuaiResearch Institute of Wood Industry. Chinese Academy of Forestry Beiiine 100091. P.R. China |
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| 作者单位： | HOU Zhuqiang GUAN Ning ZHANG Lifei ZHANG ShouhuaiResearch Institute of Wood Industry. Chinese Academy of Forestry，Beiiine 100091. P.R. China |
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| 摘 要： | Woods from Korean Larch, Chinese Fir, Aspens, Manchumian, and Fortunes Paulownia were chosen for investigation. Specimens cut from the air-dried woods had a cubic shape with nominal air-dried size of 17.0 mm and 8.5 mm. Oven-died specimens were put in containers filled with water and water sorption was implemented at atmospheric pressure and room temperature. Results from the experiment could not described exactly by the model of steady state flow from Darcy' law. An empirical equation is put forward for the relationship between the water uptake and immersion time. Meanwhile the immersion time for the maximum water uptake (MWU) was predicted from the water sorption rate. The water sorption behaviors above the fiber saturation point (FSP) differed among five tested woods. Size of specimens had an influence on the water sorption. Small specimens reached their MWU more quickly than large specimens, while large specimens have a higher water sorption rate than those of small ones. MWU was estimated, and the
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Water Sorption Behaviors of Five Woods above Fiber Saturation Point |
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| HOU Zhuqiang GUAN Ning ZHANG Lifei ZHANG ShouhuaiResearch Institute of Wood Industry. Chinese Academy of Forestry,Beiiine . P.R. China. Water Sorption Behaviors of Five Woods above Fiber Saturation Point[J]. Chinese Forestry Science and Technology, 2003, 0(2) |
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| Authors: | HOU Zhuqiang GUAN Ning ZHANG Lifei ZHANG ShouhuaiResearch Institute of Wood Industry. Chinese Academy of Forestry Beiiine . P.R. China |
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| Affiliation: | HOU Zhuqiang GUAN Ning ZHANG Lifei ZHANG ShouhuaiResearch Institute of Wood Industry. Chinese Academy of Forestry,Beiiine 100091. P.R. China |
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| Abstract: | Woods from Korean Larch, Chinese Fir, Aspens, Manchumian, and Fortunes Paulownia were chosen for investigation. Specimens cut from the air-dried woods had a cubic shape with nominal air-dried size of 17.0 mm and 8.5 mm. Oven-died specimens were put in containers filled with water and water sorption was implemented at atmospheric pressure and room temperature. Results from the experiment could not described exactly by the model of steady state flow from Darcy' law. An empirical equation is put forward for the relationship between the water uptake and immersion time. Meanwhile the immersion time for the maximum water uptake (MWU) was predicted from the water sorption rate. The water sorption behaviors above the fiber saturation point (FSP) differed among five tested woods. Size of specimens had an influence on the water sorption. Small specimens reached their MWU more quickly than large specimens, while large specimens have a higher water sorption rate than those of small ones. MWU was estimated, and the predicted values agreed well with the measured ones. |
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| Keywords: | wood water sorption absorption fiber saturation point |
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