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铝溶胶改性杨木纤维性能的研究(PDF)

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

Issue:
2011年03期
Page:
20
Column:
研究论文
publishdate:
2011-06-13

Article Info:/Info

Title:
Study on properties of wood fibers from poplar modified with Alsol
Author(s):
JIANG Weina1CAO Wenjing1 XU Li13*YANG Xing2ZHOU Xiaoyan2
1. College of Science, Nanjing Forestry University, Nanjing 210037, China; 2. College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037, China; 3. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
Keywords:
sol gel Alsol woodfiber nano composites dimensional stability fire resistance
Classification number :
TS653
DOI:
10.3969/j.jssn.1000-2006.2011.03.021
Document Code:
A
Abstract:
In this paper,wood fiber/Al2O3 nano composites were produced by solgel technology with Al inorganic salt as the raw materials. Alsol was pushed into cell wall of poplar wood fibers though vacuumsoaking method. The performances of wood fiber/Al2O3 nano composites had been studied. In order to search the best preparing condition, the effect of moisture content and ultrasonic oscillation time on weight percent gain (WPG) had been studied: WPG of wood fiber/Al2O3 nano composites decreased with the raise of moisture; WPG of wood fiber/Al2O3 nano composites increased with increase of ultrasonic oscillation time. Infrared analysis showed O—Al—O had formed in the cell wall of the wood fibers. SEMEDX showed the sol had permeated into the cell wall and the porous structure of wood was maintained. Fiberboard was formed with fiber/Al2O3 composites and the dimensional stability and fire resistance of the fiberboard were also obviously improved.

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Last Update: 2011-06-13