我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

硅溶胶浸渍处理对毛竹光老化性能的影响(PDF)

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

Issue:
2016年04期
Page:
131-136
Column:
研究论文
publishdate:
2016-08-30

Article Info:/Info

Title:
Effects of silica sol impregnation on photodegradation property of moso bamboo
Article ID:
1000-2006(2016)04-0131-06
Author(s):
BAO YongjieHE Sheng*Zhang ZeqianLI NengWU ZaixingCHEN ZhangminCHEN Yuhe
National Bamboo Research Center, SFA, Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province, Hangzhou 310012, China
Keywords:
moso bamboo light aging property of bamboo silica sol chemical composition chromatic value
Classification number :
S781.9; S785
DOI:
10.3969/j.issn.1000-2006.2016.04.021
Document Code:
A
Abstract:
The present study investigated the impact of silica sol impregnation on photo-degradation property of moso bamboo(Phyllostachys edulis(Carr.)H. De Lehaie)and explored the possibility to enhance its aging resistance property. The color stability of the moso bamboo before and after accelerated light aging for both silica sol impregnated and control samples were tested. Chemical component changes were examined by the fourier transform infrared spectroscopy(FT-IR). Combined with the results of the scanning electron microscope(SEM)and energy dispersive analysis of X-rays(EDAX), the distribution of silica sol in the moso bamboo and the causes of photo-degradation property variation were explored. FT-IR results showed that absorption peaks at wave number of 1 720 cm-1, 1 594 cm-1, 1 510 cm-1, 1 462 cm-1, 1 035 cm-1, respectively, varied after the accelerate light aging, suggesting that the degradation of lignin or hemicellulose happened during the aging. However, after the silica sol impregnation, the absorption intensities at the corresponding wave numbers almost unchanged, indicating that the impregnation was effective in enhancing moso bamboo's aging resistance. Furthermore, chromatic aberration test results also showed that the light aging resistance and color stability were enhanced after the silica sol impregnation. SEM and EDAX test results showed that the silica sol can be filled in cell lumens of moso bamboo after impregnation, which protected the chemical substances from degradation, and eventually enhanced the light aging resistance of moso bamboo. The physical filling, instead of chemical bonding of silica sol in cell lumen of moso bamboo after impregnation, was effective to protect moso bamboo's chemical substances(cellulose, lignin and hemicellulose)from degradation, resulting in decreased chromatic aberration and modified light aging property. It is concluded that the silica sol is feasible to be used for improving moso bamboo's light aging property.

References

[1] Jiang Z H. Bamboo and rattan in the world[M]. Beijing: China Forestry Publishing House, 2007.
[2] 方桂珍, 刘一星, 崔永志, 等. 低分子量MF树脂固定杨木压缩木回弹技术的初步研究[J]. 木材工业, 1996, 10(4): 18-21. Fang G Z, Liu Y X, Cui Y Z, et al. A preliminary study of the technique of fixating recovery from compressed poplar wood with MF resin[J]. China Wood Industry, 1996, 10(4): 18-21.
[3] 刘君良, 李坚, 刘一星. PF预聚物处理固定木材压缩变形的机理[J]. 东北林业大学学报,2000, 28(4): 16-20. Doi:10.3969/j.issn.1000-5382.2000.04.005. Liu J L, Li J, Liu Y X. Study on the fixation mechanism of compressive deformation of wood by PF resin treatment[J]. Journal of Northeast Forestry University, 2000, 28(4): 16-20.
[4] 孙世彧, 段晓霞, 吴玉銮, 等. 仿瓷餐具材质与性能分析[J]. 中国塑料, 2011, 25(5): 101-104. Sun S Y, Duan X X, Wu Y L, et al. Research on the materials and properties of melamine tablewares[J]. China Plastic, 2011, 25(5): 101-104.
[5] 田华, 陈连喜, 刘全文. 硅溶胶的性质、制备和应用[J]. 国外建材科技, 2007, 28(2): 8-11. Doi:10.3963/j.issn.1674-6066.2007.02.018. Tian H, Chen L X, Liu Q W. Properties, manufactures and application of silica sol[J]. Science and Technology of Overseas Materials, 2007, 28(2):8-11.
[6] 林兰英. 硅溶胶强化杨木复合材的制备与性能研究[D]. 北京:中国林业科学研究院, 2008. Lin L Y. Preparation and properties of poplar composite strengthened by silica sol[D]. Beijing:Chinese Academy of Forestry, 2008.
[7] Li J Z, Furuno T, Katoh S. Preparation and properties of acetylated and propionylated wood-silicate composite[J]. Holzforschung, 2001, 55(1): 93-96. Doi:10.1515/hfsg.2001.93.
[8] Miyafuji H, Saka S. Wood-inorganic composites prepared by the sol-gel process. V. Fire-resisting properties of the SiO2-P2O5-B2O3 wood-inorganic composites[J]. Mokuzai Gakkaishi, 1996, 42(1): 74-80. Doi:10.1007/bf00767902.
[9] 关鑫. 杨木和樟子松单板紫外光诱发变色的研究[D]. 哈尔滨:东北林业大学, 2009. Guan X. Study on the induced discoloration of poplar and Mongolian Scotch pine veneer by UV light[D]. Harbin: Northeast Forestry University, 2009.
[10] 王小青,任海青,赵荣军,等. 毛竹材表面光化降解的FTIR和XPS 分析[J]. 光谱学与光谱分析,2009,29(7): 1864-1867. Doi:10.3964/j.issn.1000-0593(2009)07-1864-04. Wang X Q, Ren H Q, Zhao R J, et al. FTIR and XPS spectroscopic studies of photodegradation of moso bamboo(Phyllostachys pubescens Mazel)[J]. Spectroscopy and Spectral Analysis, 2009, 29(7):1864-1867.
[11] Persze L, Tolvaj L. Photodegradation of wood at elevated temperature: colour change[J]. Journal of Photochemistry and Photobiology B: Biology, 2012, 108(6): 44-47. Doi:10.1016/j.jphotobiol.2011.12.008.
[12] ivkovic' V, Arnold M, Radmanovic' K, et al. Spectral sensitivity in the photodegradation of fir wood(Abies alba Mill.)surfaces: colour changes in natural weathering[J]. Wood Science and Technology, 2014, 48(2): 239-252.
[13] Wang X Q, Ren H Q. Surface deterioration of Moso bamboo(Phyllostachys pubescens)induced by exposure to artificial sunlight[J]. Journal of Wood Science, 2009, 55(1): 47-52. Doi:10.1007/s10086-008-0994-0.
[14] 秦莉, 于文吉. 木材光老化的研究进展[J]. 木材工业, 2009, 23(4): 33-36. Doi:10.3969/j.issn.1001-8654.2009.04.010. Qin L, Yu W J. Review of research and development of photo-induced aging of wood[J]. China Wood Industry, 2009, 23(4): 33-36.
[15] 隋淑娟, 邱坚, 李坚. 木材-纳米SiO2气凝胶复合材料结构的FTIR表征[J]. 东北林业大学学报, 2006, 34(5):49-50. Doi:10.3969/j.issn.1000-5382.2006.05.019. Sui S J, Qiu J, Li J. Characterization of chemical structure of wood-nano-SiO2 aerogel composites by FTIR[J]. Journal of Northeast Forestry University, 2006, 34(5):49-50.
[16] 姜亦飞, 储富祥, 秦特夫. 有机硅溶胶-凝胶法改性木材Si元素的分布状态[J]. 木材工业, 2013, 27(1): 21-23. Doi:10.3969/j.issn.1001-8654.2013.01.005. Jiang Y F, Chu F X, Qin T F. Element distribution inside silicon modified wood[J]. China Wood Industry, 2013, 27(1): 21-23.
[17] Ogiso K,Saka S. Wood-inorganic composites prepared by sol-gel process. 4: effects of chemical bonds between wood and inorganic substances on property enhancement[J]. Mokuzai Gakkaishi, 1994, 40(10): 1100-1106. Doi: 10.1007/bf00767902.

Last Update: 2016-08-30