Microfibril angle of Norway spruce [Picea abies (L.) Karst.] compression wood:: comparison of measuring techniques

被引：63

作者：

Andersson, S

Serimaa, R

Torkkeli, M

Paakkari, T

Saranpää, P

Pesonen, E

机构：

[1] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland

[2] Finnish Forest Res Inst, METLA, Vantaa 01301, Finland

来源：

JOURNAL OF WOOD SCIENCE | 2000年 / 46卷 / 05期

基金：

芬兰科学院;

关键词：

microfibril angle; wide angle X-ray scattering; small-angle X-ray scattering; wood cellulose; Picea abies (L.) Karst;

D O I：

10.1007/BF00776394

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The structure of cellulose, especially the microfibril angles (MFAs), in compression wood of Norway spruce [Picea abies (L.) Karst.] was studied by wide- and small-angle X-ray scattering and polarizing microscopy. On the basis of the X-ray scattering experiments the average MFAs of the cell wall layers S-2 and S-1 of the studied sample are 39 degrees and 89 degrees, respectively; and the average diameter and length of the cellulose crystallites are 2.9 and 20.0 nm, respectively. The average of the whole MFA distribution is shown to agree with the one obtained by polarizing microscopy of macerated fibers.

引用

页码：343 / 349

页数：7

共 30 条

[1]

Boyd J. D., 1977, Wood Science and Technology, V11, P93

[2]

CAVE I. D., 1966, FOREST PRODJ, V16, P37

[3] Theory of X-ray measurement of microfibril angle in wood .2. The diffraction diagram - X-ray diffraction by materials with fibre type symmetry [J].