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

Editor-in-Chief: Faix, Oskar

Editorial Board: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Rio, Jose C. / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Laine, Christiane / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Potthast, Antje / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Takano, Toshiyuki / Tamminen, Tarja / Theliander, Hans / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi

12 Issues per year

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5-year IMPACT FACTOR: 1.875

CiteScore 2016: 1.83

SCImago Journal Rank (SJR) 2015: 0.817
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Volume 62, Issue 3


Effects of thermomechanical refining conditions on the morphology and thermal properties of wheat straw fibre

Ming-Zhu Pan
  • 1FPInnovations – Forintek Division, Quebec City, Quebec, Canada and College of Wood Science and Technology, Nanjing Forestry University, Nanjing, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Ding-Guo Zhou / Chang-Tong Mei / James Deng / Xiang-Ming Wang / Tony S.Y. Zhang
Published Online: 2008-02-14 | DOI: https://doi.org/10.1515/HF.2008.058


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

About the article

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

Received: 2007-10-02

Accepted: 2008-01-03

Published Online: 2008-02-14

Published Online: 2008-02-14

Published in Print: 2008-05-01

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

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