杨木地板基材密实和碳化改性

徐信武,汤正捷,崔悦,李丰

南京林业大学学报(自然科学版) ›› 2011, Vol. 35 ›› Issue (02) : 65-68.

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南京林业大学学报(自然科学版) ›› 2011, Vol. 35 ›› Issue (02) : 65-68. DOI: 10.3969/j.jssn.1000-2006.2011.02.014
研究论文

杨木地板基材密实和碳化改性

  • 徐信武,汤正捷,崔悦,李丰
作者信息 +

Poplar parquet modification by densification and surface carbonization

  • XU Xinwu, TANG Zhengjie, CUI Yue, LI Feng
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文章历史 +

摘要

采用“密实化(常温/100 ℃、增湿/不增湿)-炭化(温度:240、260、280 ℃;时间:30~180s)”两步法工艺改性意杨木材,测试了密实前后板材的断面密度分布,密实后板材的吸湿/水浴回弹,以及炭化后板材的表面硬度、耐磨性和润湿性。结果表明:密实化提高了木材的表层密度,压缩率由表及里呈递减趋势,压缩程度可由密实工艺参数调控;在常温、常湿条件下,密实后的意杨板材具有较低的回弹率;密实和炭化提高了木材的硬度和表面耐磨性,改变了木材的表面润湿性。

Abstract

Fastgrown wood, as a potential substance for natural forests, can be modified to make products such as parquet with satisfying hardness and surface abradability. In this paper, a combined method, i.e., densification plus carbonization, was tried to optimize properties of poplar wood. Densification was conducted at room temperature (RT) and 100 ℃, with and without water. Densification lumbers were further carbonized at 240, 260, or 280 ℃, for 30 to 180 seconds. Vertical density profile (VDP) of densified and control poplar lumbers was measured. Densified samples were conditioned or bathed for springback test.Furthermore, samples after densification and/or carbonization were used to test surface hardness, abrasive resistance, and wettability. Results were drawn as follows: Poplar lumbers were obviously densified resulting a Vshaped compression rate profile (CRP) in thickness, which can be adjusted by densification parameters.Densified lumber showed ignorable springback under RT&65 %RH. Densified and/or carbonized poplar lumbers showed improved surface hardness and abradability, and changed surface wettability.

引用本文

导出引用
徐信武,汤正捷,崔悦,李丰. 杨木地板基材密实和碳化改性[J]. 南京林业大学学报(自然科学版). 2011, 35(02): 65-68 https://doi.org/10.3969/j.jssn.1000-2006.2011.02.014
XU Xinwu, TANG Zhengjie, CUI Yue, LI Feng. Poplar parquet modification by densification and surface carbonization[J]. Journal of Nanjing Forestry University (Natural Sciences Edition). 2011, 35(02): 65-68 https://doi.org/10.3969/j.jssn.1000-2006.2011.02.014
中图分类号: S781   

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基金

收稿日期:2010-04-01修回日期:2010-11-17 基金项目:2009年苏北科技发展计划(BC 2009476)作者简介:徐信武(1975—),副教授,博士。Email: xucarpenter@yahoo.com.cn。引文格式:徐信武,汤正捷,崔悦,等. 杨木地板基材密实和碳化改性[J]. 南京林业大学学报:自然科学版,2011,35(2):65-68.

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