Journal
HOLZFORSCHUNG
Volume 72, Issue 1, Pages 57-63Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/hf-2017-0083
Keywords
compression wood; heartwood; hot press; mercury intrusion porosimetry (MIP); modified wood; pore size distribution; sapwood; thermally modified wood
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Funding
- National Majority R & D Program of China [2016YFD0600701]
- Innovation Team of Desert Shrub Fibrosis and Energy Utilization Technology of the Inner Mongolia Autonomous Region, of Inner Mongolia Agricultural University
- Disposal and Recycling Technology Development
- Industrialization of Industrial Solid Waste (Inner Mongolia Autonomous Region)
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In focus of the present study was the mercury intrusion porosimetry (MIP) of heartwood (hW) and sapwood (sW) of Scots pine, which were modified by compression alone (C) and combination of C and heat treatment (CHT). The untreated sW has a more uniform pore distribution than that of hW as presented in logarithmic differential curves. Expectedly, the total pore volumes of CHThW and CHTsW are significantly decreased. Compared to the HT temperature (180-220 degrees C), the exposure time (2-5 h) has a weaker effect on the pore structures of the CHT woods. Furthermore, the intrusion volume of CHThW decreased compared with compressed alone samples. However, an inverse result was apparent for CHTsW.
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