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材料导报  2025, Vol. 39 Issue (19): 24080174-6    https://doi.org/10.11896/cldb.24080174
  高分子与聚合物基复合材料 |
硅酸钠浸渍改性对杉木渗透性能的影响
吴江1,2, 徐斌1,2, 刘玉仙3, 张源3, 李萍3, 左迎峰3,*
1 咸宁市公共检验检测中心,湖北 咸宁 437000
2 湖北省森工板材产品质量检验检测中心,湖北 咸宁 437000
3 中南林业科技大学材料与能源学院,长沙 410004
The Effect of Sodium Silicate Impregnation Modification on the Permeability of Chinese Fir
WU Jiang1,2, XU Bin1,2, LIU Yuxian3, ZHANG Yuan3, LI Ping3, ZUO Yingfeng3,*
1 Xianning Public Inspection and Testing Center, Xianning 437000, Hubei, China
2 Hubei Center of Inspection and Testing for Wood-based Panels Product and Wood Industry, Xianning 437000, Hubei, China
3 College of Materials and Energy, Central South University of Forestry and Technology, Changsha 410004, China
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摘要 为了提高杉木的渗透性能,以低浓度硅酸钠为渗透改性剂,探究硅酸钠浓度、硅酸钠模数、陈化时间对杉木物理力学性能和渗透性能的影响,并获得最佳的渗透改性工艺。使用单因素试验探究硅酸钠浓度、硅酸钠模数、陈化时间对改性杉木渗透性能的影响,并通过扫描电镜等现代分析手段对改性杉木的微观形貌、化学结构等进行分析。通过单因素试验结果可知,当硅酸钠浓度为5%、硅酸钠模数为3.3、陈化时间为6 h时,处理得到的改性杉木吸水率相比未改性材提高65.93%。经过低浓度硅酸钠渗透改性后,杉木渗透性能相较于未改性材显著提高,且力学性能良好,因此在后续改性过程中相比未改性木更具优势。
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吴江
徐斌
刘玉仙
张源
李萍
左迎峰
关键词:  杉木  硅酸钠  浸渍改性  力学性能  渗透性    
Abstract: In order to improve the permeability of Chinese fir, the effects of sodium silicate concentration, sodium silicate modulus and aging time on the physical and mechanical properties and permeability of Chinese fir were investigated with low concentration sodium silicate as the osmotic modifier, and the best osmotic modification process was obtained. The effects of sodium silicate concentration, sodium silicate modulus and aging time on the permeability of modified Chinese fir were investigated by single factor test. The microstructure and chemical structure of modified Chinese fir were analyzed by modern analytical methods such as scanning electron microscopy. The results of single factor test showed that the water absorption of modified Chinese fir increased by 65.93% when the concentration of sodium silicate was 5%, the modulus of sodium silicate was 3.3 and the aging time was 6 h. After low concentration sodium silicate infiltration modification, the permeability of Chinese fir was significantly improved compared with that of unmodified wood, and the mechanical properties were good. Therefore, the modified wood had more advantages than the unmodified wood in the subsequent modification process.
Key words:  Chinese fir    sodium silicate    impregnation modification    mechanical property    permeability
出版日期:  2025-10-10      发布日期:  2025-09-24
ZTFLH:  S781.7  
基金资助: 国家自然科学基金青年项目(32201485);湖南省重点研发计划项目(2023NK2038);湖南省教育厅科学研究重点项目(22A0177);湖湘青年英才科技创新类(2023RC3159)
通讯作者:  *左迎峰,博士,中南林业科技大学材料与能源学院教授、博士研究生导师。目前主要从事木竹基复合材料、功能材料等方面的研究工作。zuoyf1986@163.com   
作者简介:  吴江,硕士,湖北省咸宁市公共检验检测中心党组书记、主任。目前主要从事森工板材质量与标准化工作。
引用本文:    
吴江, 徐斌, 刘玉仙, 张源, 李萍, 左迎峰. 硅酸钠浸渍改性对杉木渗透性能的影响[J]. 材料导报, 2025, 39(19): 24080174-6.
WU Jiang, XU Bin, LIU Yuxian, ZHANG Yuan, LI Ping, ZUO Yingfeng. The Effect of Sodium Silicate Impregnation Modification on the Permeability of Chinese Fir. Materials Reports, 2025, 39(19): 24080174-6.
链接本文:  
https://www.mater-rep.com/CN/10.11896/cldb.24080174  或          https://www.mater-rep.com/CN/Y2025/V39/I19/24080174
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