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Title: Effects of Heat Treatment on Some Physical Properties of Douglas Fir (Pseudotsuga Menziesii) Wood

Source: Advanced Materials Research Volumes 197-198, (2011) pp 90-95; 2011

Author(s)Li, Xianjun; Cai, Zhiyong; Mou, Quying; Wu, Yiqiang; Liu, Yuan

Publication Year: 2011  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4706-1A

Abstract: In this study the effect of heat treatment on some physical properties of Douglas fir (Pseudotsuga menziesii) was investigated. Wood specimens were subjected to heat treatment at 160, 180, 200 and 220oC for 1, 2, 3 and 4h. The results show that heat treatment resulted in a darkened color, decreased moisture performance and increased dimensional stability of wood. Compared with untreated wood, equilibrium moisture content (EMC), water absorption (WA) and volume swelling (VS) for treated wood decrease up to 42.63%, 34.93% and 67.47%. The higher the treatment temperature and the longer the treatment time, the lower EMC, WA and VS. The VS of treated specimens has a more significant reduction than EMC and WA when the heat treatment temperature is above 180oC. The visual color changes were more distinct after heat treatment above 180oC. Temperature has a greater influence than time on these properties of specimens.

Keywords: Douglas fir, physical properties, mechanical properties, heat treatment, Pseudotsuga menziesii, temperature, wood color, wood moisture, moisture, water absorption, water adsorption, wood, heat treatment, thermal properties, absorption, heat, heating time, color of wood, moisture content, dimensional stability, swelling, treated wood, modified wood, moisture performance

Publication Review Process: Formally Refereed

File size: 159 kb(s)

Date posted: 04/13/2011

This publication is also viewable on Treesearch:  view
RITS Product ID: 39065
Current FPL Scientist associated with this product
Cai, Zhiyong
Supervisory Research Materials Engineer
  

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