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杨木地板基材密实和碳化改性(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2011年02期
Page:
65-68
Column:
研究论文
publishdate:
2011-03-28

Article Info:/Info

Title:
Poplar parquet modification by densification and surface carbonization
Author(s):
XU Xinwu TANG Zhengjie CUI Yue LI Feng
College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037 China
Keywords:
fastgrown wood densification carbonization parquet
Classification number :
S781
DOI:
10.3969/j.jssn.1000-2006.2011.02.014
Document Code:
A
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.

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Last Update: 2011-04-13