Abstract
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°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.
Acknowledgements
The authors gratefully acknowledge the financial support from National Majority R & D Program of China (2016YFD0600701), the Innovation Team of Desert Shrub Fibrosis and Energy Utilization Technology of the Inner Mongolia Autonomous Region, of Inner Mongolia Agricultural University, the Disposal and Recycling Technology Development, and Industrialization of Industrial Solid Waste (Inner Mongolia Autonomous Region).
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