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Holzforschung

International Journal of the Biology, Chemistry, Physics, and Technology of Wood

Editor-in-Chief: Faix, Oskar

Editorial Board Member: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Berry, Richard / Burgert, Ingo / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gellerstedt, Göran / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Heitner, Cyril / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Kleen, Marjatta / Koch, Gerald / Lachenal, Dominique / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Pizzi, Antonio / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Tamminen, Tarja / Viikari, Liisa / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi


IMPACT FACTOR increased in 2015: 1.711
5-year IMPACT FACTOR: 1.794
Rank 3 out of 21 in category Materials Science, Paper & Wood and 14 out of 66 in Forestry in the 2015 Thomson Reuters Journal Citation Report/Science Edition

SCImago Journal Rank (SJR) 2015: 0.817
Source Normalized Impact per Paper (SNIP) 2015: 0.954
Impact per Publication (IPP) 2015: 1.427

249,00 € / $374.00 / £187.00*

Online
ISSN
1437-434X
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Effects of thermomechanical refining conditions on the morphology and thermal properties of wheat straw fibre

Ming-Zhu Pan1 / Ding-Guo Zhou2 / Chang-Tong Mei3 / James Deng4 / Xiang-Ming Wang5 / Tony S.Y. Zhang6

1FPInnovations – Forintek Division, Quebec City, Quebec, Canada and College of Wood Science and Technology, Nanjing Forestry University, Nanjing, China

2College of Wood Science and Technology, Nanjing Forestry University, Nanjing, China

3College of Wood Science and Technology, Nanjing Forestry University, Nanjing, China

4FPInnovations – Forintek Division, Quebec City, Quebec, Canada

5FPInnovations – Forintek Division, Quebec City, Quebec, Canada

6College of Wood Science and Technology, Nanjing Forestry University, Nanjing, China

Corresponding author. FPInnovations – Forintek Division, 2665 East Mall, Vancouver, BC, V6T 1W5, Canada Phone +1-604-222-5741 Fax: +1-604-222-5690

Citation Information: Holzforschung. Volume 62, Issue 3, Pages 338–343, ISSN (Online) 1437434X, ISSN (Print) 0018-3830, DOI: 10.1515/HF.2008.058, February 2008

Publication History

Received:
2007-10-02
Accepted:
2008-01-03
Published Online:
2008-02-14

Abstract

Wheat straw fibre is prepared by a thermomechanical (TM) refining system. This study investigated the effects of refining steam pressure (4, 6, 8 and 10 bar) and refiner speed (2500 and 3000 rpm) on the morphology and thermal properties of the resulting fibres. After TM refining, the fibres exhibited more surface irregularities and heterogeneities as well as decreased fibre length. The fine content decreased with increasing steam pressure, but the aspect ratio increased. The findings show that higher steam pressure (8 bar) results in more effective wheat straw refining. Refining lowers the pH. Thermogravimetric analysis showed that TM refining does not influence the thermal properties of wheat straw fibres. Weight loss has to be taken into account upon exposure to temperatures around 170°C. The silica content of the fibres was significantly reduced through refining.

Keywords: fibre morphology; pH; silica content; thermal stability; thermomechanical refining; wheat straw fibre

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