Jump to ContentJump to Main Navigation
Show Summary Details
More options …
Wood Research and Technology

Holzforschung

Cellulose – Hemicelluloses – Lignin – Wood Extractives

Editor-in-Chief: Faix, Oskar / Salmén, Lennart

Editorial Board: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / 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


IMPACT FACTOR 2017: 2.079

CiteScore 2017: 1.94

SCImago Journal Rank (SJR) 2017: 0.709
Source Normalized Impact per Paper (SNIP) 2017: 0.979

Online
ISSN
1437-434X
See all formats and pricing
More options …
Volume 64, Issue 5

Issues

A single cell model for pretreatment of wood by microwave explosion

Xianjun Li
  • Material Science and Engineering School of Central South University of Forestry and Technology, Changsha, Hunan, PR China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Yongdong Zhou
  • Research Institute of Wood Industry, Chinese Academy of Forestry, Haidian District, Beijing, PR China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Yonglin Yan
  • Material Science and Engineering School of Central South University of Forestry and Technology, Changsha, Hunan, PR China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Zhiyong Cai / Fu Feng
  • Research Institute of Wood Industry, Chinese Academy of Forestry, Haidian District, Beijing, PR China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2010-07-29 | DOI: https://doi.org/10.1515/hf.2010.095

Abstract

A theoretical model was developed to better understand the process of microwave explosion treatment of wood cells. The cell expansion and critical conditions concerning pressure and temperature of ray parenchyma cells in Eucalyptus urophylla were simulated during microwave pretreatment. The results indicate that longitudinal and circumferential stresses were generated in the cell walls owing to the internal steam pressure during extensive microwave treatment. The circumferential stress is twice as high as the longitudinal stress. The pressure difference reaches its maximum value of 0.84 MPa when the extension ratio is 1.20 for the longitudinal direction and 1.62 for the circumferential direction. The maximum pressure difference at the theoretical yielding point is the critical pressure difference that can eventually rupture the ray cell. The critical pressure difference decreases with increasing cell radius and decreasing shear modulus in the cell wall. This simulated result provides useful information to modify wood at the level of ray parenchyma cells.

Keywords: microwave explosion; pretreatment; single cell model; wood

About the article

Corresponding author. USDA Forest Service, Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI 53726-2398, USA


Received: 2009-11-18

Accepted: 2010-05-03

Published Online: 2010-07-29

Published Online: 2010-07-29

Published in Print: 2010-08-01


Citation Information: Holzforschung, Volume 64, Issue 5, Pages 633–637, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/hf.2010.095.

Export Citation

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
Andrea Nasswettrová, Pavel Šmíra, and Soňa Křivánková
Drying Technology, 2016, Volume 34, Number 9, Page 1011
[2]
Chung-Hung Chan, Hak Koon Yeoh, Rozita Yusoff, and Gek Cheng Ngoh
Journal of Food Engineering, 2016, Volume 188, Page 98
[3]
Yongfeng Luo, Xi Li, Xianjun Li, and Jianxiong Zhang
Journal of Nanomaterials, 2014, Volume 2014, Page 1
[4]
Xianjun Li, Yun Li, Yongfeng Luo, Qunying Mou, Xingong Li, Lisheng Xie, and Yiqiang Wu
Journal of Nanomaterials, 2014, Volume 2014, Page 1
[5]
Yaoli Zhang, Kun Jia, Liping Cai, and Sheldon Q. Shi
Drying Technology, 2013, Volume 31, Number 6, Page 666
[6]
Xianjun Li, Yongfeng Luo, Hongbin Chen, Xia He, Jianxiong Lv, and Yiqiang Wu
Journal of Nanomaterials, 2013, Volume 2013, Page 1

Comments (0)

Please log in or register to comment.
Log in