[1]陈继超,姜维娜,曹文静,等.杨木纤维/Si-B复合材料制备及其防腐性能研究[J].南京林业大学学报(自然科学版),2018,42(05):206-210.[doi:10.3969/j.issn.1000-2006.201706051]
 CHEN Jichao,JIANG Weina,CAO Wenjing,et al.Preparation and antiseptic properties of poplar fiber /Si-B composite materials[J].Journal of Nanjing Forestry University(Natural Science Edition),2018,42(05):206-210.[doi:10.3969/j.issn.1000-2006.201706051]
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杨木纤维/Si-B复合材料制备及其防腐性能研究
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
42
期数:
2018年05期
页码:
206-210
栏目:
研究简报
出版日期:
2018-09-15

文章信息/Info

Title:
Preparation and antiseptic properties of poplar fiber /Si-B composite materials
文章编号:
1000-2006(2018)05-0206-05
作者:
陈继超1姜维娜2曹文静1周徐亮2周晓燕3徐 莉14*
1.南京林业大学理学院,江苏 南京 210037; 2.南京林业大学化工学院,江苏 南京 210037; 3.南京林业大学材料科学与工程学院,江苏 南京 210037; 4.南京林业大学,南方现代林业协同创新中心,江苏 南京 210037
Author(s):
CHEN Jichao1 JIANG Weina2 CAO Wenjing1 ZHOU Xuliang2 ZHOU Xiaoyan3 XU Li1 4*
1. School of Science, Nanjing Forestry University, Nanjing 210037, China; 2. School of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; 3. School of Materials Science and Engineering, Nanjing forestry University, Nanjing 210037, C
关键词:
杨木纤维 耐腐性 二氧化硅 硼酸 溶胶-凝胶
Keywords:
poplar wood fiber decay-resistance SiO2 boric acid Sol-gel
分类号:
TQ59
DOI:
10.3969/j.issn.1000-2006.201706051
文献标志码:
A
摘要:
【目的】制备出杨木纤维/Si-B复合材料,并研究其力学和防腐性能。【方法】采用溶胶-凝胶(Sol-gel),方法以正硅酸乙酯(TEOS)为前躯体,硼酸为添加剂,制备出Si-B复合溶胶; 以杨木纤维为原料,通过真空-浸渍法制备出杨木纤维/Si-B溶胶复合材料,并采用热压法压制成纤维板。【结果】通过SEM-EDXA表征以及能谱分析,表明二氧化硅已进入到纤维内部,并且细胞壁纳米孔隙中Si 的质量分数能达到3.08%。红外分析表明,处理后的木纤维上的羟基与溶胶发生缩合,并出现Si—O—Si伸缩振动以及Si—O—B的振动峰。【结论】溶胶处理后杨木纤维板的内结合强度、静曲强度均达到国家标准,并且具有较低的吸水厚度膨胀率。经过防腐实验发现,处理后纤维板具有良好的耐白腐性和耐褐腐性,其中耐白腐真菌性能得到显著提高。
Abstract:
【Objective】Poplar fiber/Si-B composite was prepared, and its mechanical and antiseptic properties were studied.【Method】Using poplar fibers as the research materials, wood fiber/Si-Bcomposites were prepared via the sol-gel technology.【Results】According to scanning electron microscope-energydispersiveanalysis(SEM-EDXA),Si is present in wood fiber cell walls and the mass fraction of Si in the nanometer-scale pores of cell walls in the wood fiber can reach 3.08%. Fourier transform infrared spectrophotometry(FTIR)results showed a reduction in the number of hydroxyl groups(—OH)of the wood fiber, which is the main reason for the improvement of the dimensional stability of modified fiberboard which was produced with poplar fiber/Si-B composite.【Conclusion】The absorbing water thickness expansion rate of the modified fiberboard was lower than unmodified fiberboard, and the physical and mechanical performance meet the national standard. Moreover, the modified fiberboard also has good resistance to brown-rot fungus and, especially, for white-rot fungus.

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备注/Memo

备注/Memo:
收稿日期:2017-06-22 修回日期:2018-04-24 基金项目:国家自然科学基金项目(30771676); 国家重点研发计划(2017YF0600706) 第一作者:陈继超(949922900@qq.com)。*通信作者:徐莉(xuliqby@njfu.edu.cn),教授。
更新日期/Last Update: 2018-09-15