[1]魏起华,魏微,谢拥群.硅铝凝胶改性防腐剂对竹材表面颜色的影响[J].森林与环境学报,2019,39(04):344-348.[doi:10.13324/j.cnki.jfcf.2019.04.002]
 WEI Qihua,WEI Wei,XIE Yongqun.Effect of heat treatment with silica-alumina sol on surface color of bamboo timber[J].,2019,39(04):344-348.[doi:10.13324/j.cnki.jfcf.2019.04.002]
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硅铝凝胶改性防腐剂对竹材表面颜色的影响()
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《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
39卷
期数:
2019年04期
页码:
344-348
栏目:
出版日期:
2019-07-02

文章信息/Info

Title:
Effect of heat treatment with silica-alumina sol on surface color of bamboo timber
作者:
魏起华 魏微 谢拥群
福建农林大学材料工程学院, 福建 福州 350002
Author(s):
WEI Qihua WEI Wei XIE Yongqun
College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
关键词:
毛竹色差防霉剂热处理硅铝无机凝胶
Keywords:
moso bamboocolor differencemildew preventiveheat treatmentsilica-alumina sol
分类号:
S653.6
DOI:
10.13324/j.cnki.jfcf.2019.04.002
摘要:
为考察硅铝无机防腐处理对竹材表面颜色的影响,以毛竹为材料,采用不同热处理溶液浓度(0、25%、50%、100%)、处理温度(140、160、180℃)和处理时间(1、2 h)分别对其进行处理。依照标准色度系统指定表征防腐处理前后竹材表面颜色,通过颜色总色差、明度、红绿色指数、蓝黄色指数的变化,探讨防腐处理工艺参数对竹材表面颜色的影响。通过傅里叶红外光谱和X衍射光谱分析防腐液与竹材结合方式,并使用场发射扫描电子显微镜观察对比处理前后防腐液在竹细胞腔内的分布情况。结果表明,防腐液浓度对竹材色差变化影响较大,随着浓度的增大,竹材色差也随之增大。热处理工艺的处理温度与处理时间对竹材表面颜色的影响也符合传统木材热处理色差变化规律。微观检测发现,防腐剂不仅与纤维有化学键结合,也通过物理吸附以分子团聚形式附着填充在细胞腔内部。
Abstract:
To explore the investigate of fungus-resisitant treatment on surface color of moso bamboo, silica-alumina (SA) sol was used as heating medium to treat moso bamboo timber under different solution concentration (0, 25%, 50%, 100%), temperature (140, 160, 180℃) and treatment time (1, 2 h). The surface color (including △L*、△a*、△b*、△E*) was obtained according to the standard colorimetric system and the relationship between conditions of preservatives treating was evaluated by color difference. Then the SA sol distribution in the bamboo was observed by Fourier transform infrared spectroscopy, X-ray diffraction and field emission scanning electron microscope. The results showed that the solution concentration of silica-alumina sol has a great influence on the change of color difference of bamboo surface. Surface color of the treated bamboo turned to be darker with solution concentration increase. The effect of the temperature and time of heat treatment was also consistent with the color difference of traditional bamboo heat treatment. Microcosmic showed that they were physical absorption and chemical bond between bamboo fiber and preservatives.

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备注/Memo

备注/Memo:
收稿日期:2018-11-26;改回日期:2019-3-26。
基金项目:国家自然科学基金(30781982);福建省产学重大项目(2013H6004)。
作者简介:魏起华(1965-),男,实验师,从事林产化工研究。Email:45381275@qq.com。
通讯作者:谢拥群(1960-),男,教授,博士生导师,从事木材科学与技术研究。Email:fjxieyq@hotmail.com。
更新日期/Last Update: 1900-01-01