Mechanical Function of Lignin and Hemicelluloses in Wood Cell Wall Revealed with Microtension of Single Wood Fiber

被引：1

作者：

Zhang, Shuang-Yan ^{[1
]}

Wang, Chuan-Gui ^{[1
]}

Fei, Ben-Hua ^{[2
]}

Yu, Yan ^{[2
]}

Cheng, Hai-Tao ^{[2
]}

Tian, Gen-Lin ^{[2
]}

机构：

[1] Anhui Agr Univ, Sch Forestry & Landscape Architecture, Hefei 230036, Peoples R China

[2] Int Ctr Bamboo & Rattan, Beijing 100102, Peoples R China

来源：

BIORESOURCES | 2013年 / 8卷 / 02期

关键词：

Hemicelluloses; Lignin; Cell wall; Mechanical properties; Microtension; POLYMERS; MICROMECHANICS; CELLULOSE;

D O I：

10.15376/biores.8.2.2376-2385

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Chinese Fir wood (Cunninghamia lanceolata (Lamb.) Hook) was subjected to extraction treatments with sodium chlorite (NaClO2) for delignification, as well as with sodium hydroxide (NaOH) at different concentrations for extraction of hemicelluloses. The wood was examined using a Fourier Transform Infrared (FT-IR) spectrometer and microtension technique to track changes in the chemical and the micromechanical properties of the cell wall. The results of the microtensile tests indicated that the hemicelluloses caused more damage to the mechanical properties of the cell wall than lignin. The micromechanical properties that occurred with degradation of chemical components underlined the key role of hemicelluloses in maintaining the integrity of the cell wall.

引用

页码：2376 / 2385

页数：10

共 26 条

[1] Interactions between wood polymers studied by dynamic FT-IR spectroscopy
Åkerholm, M
Salmén, L
[J]. POLYMER, 2001, 42 (03) : 963 - 969
[2] The oriented structure of lignin and its viscoelastic properties studied by static and dynamic FT-IR spectroscopy
Åkerholm, M
Salmén, L
[J]. HOLZFORSCHUNG, 2003, 57 (05) : 459 - 465
[3] Softening of wood polymers induced by moisture studied by dynamic FTIR spectroscopy
Åkerholm, M
Salmén, L
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2004, 94 (05) : 2032 - 2040
[4] [Anonymous], 1994, 2677894 GBT
[5] Baas P., 1982, NEW PERSPECTIVE WOOD, P171
[6] Brittleness of twig bases in the genus Salix:: fracture mechanics and ecological relevance
Beismann, H
Wilhelmi, H
Baillères, H
Spatz, HC
Bogenrieder, A
Speck, T
[J]. JOURNAL OF EXPERIMENTAL BOTANY, 2000, 51 (344) : 617 - 633
[7] A comparison of two techniques for wood fibre isolation evaluation by tensile tests on single fibres with different microfibril angle
Burgert, I
Keckes, J
Frühmann, K
Fratzl, P
Tschegg, SE
[J]. PLANT BIOLOGY, 2002, 4 (01) : 9 - 12
[8] Cao Shuang-ping, 2010, Journal of Nanjing Forestry University, V34, P87
[9] The influence of hemicellulose on fibril aggregation of kraft pulp fibres as revealed by FE-SEM and CP/MAS 13C-NMR
Duchesne, I
Hult, E
Molin, U
Daniel, G
Iversen, T
Lennholm, H
[J]. CELLULOSE, 2001, 8 (02) : 103 - 111
[10] Gindl W, 2002, CAN J BOT, V80, P1029, DOI [10.1139/b02-091, 10.1139/B02-091]

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