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Titolo:
Microfibril angle of Norway spruce [Picea abies (L.) Karst.] compression wood: comparison of measuring techniques
Autore:
Andersson, S; Serimaa, R; Torkkeli, M; Paakkari, T; Saranpaa, P; Pesonen, E;
Indirizzi:
Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ys, FIN-00014 Helsinki, Finland Finnish Forest Res Inst, METLA, Vantaa 01301, Finland Finnish Forest Res Inst Vantaa Finland 01301 ETLA, Vantaa 01301, Finland
Titolo Testata:
JOURNAL OF WOOD SCIENCE
fascicolo: 5, volume: 46, anno: 2000,
pagine: 343 - 349
SICI:
1435-0211(2000)46:5<343:MAONS[>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
X-RAY-SCATTERING; ELEMENTARY CELLULOSE FIBRILS; CELL-WALL; DIFFRACTION;
Keywords:
microfibril angle; wide angle X-ray scattering; small-angle X-ray scattering; wood cellulose; Picea abies (L.) Karst;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Serimaa, R Univ Helsinki, Dept Phys, POB 9, FIN-00014 Helsinki, Finland Univ Helsinki POB 9 Helsinki Finland FIN-00014 lsinki, Finland
Citazione:
S. Andersson et al., "Microfibril angle of Norway spruce [Picea abies (L.) Karst.] compression wood: comparison of measuring techniques", J WOOD SCI, 46(5), 2000, pp. 343-349

Abstract

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.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 21:35:54