Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 302, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.124422
Keywords
Thermorretification; Polystyrene; Pine wood; Two-step treatment; Wood modification
Categories
Funding
- Coordination for the Improvement of Higher Education -CAPES [001]
- National Council for Scientific and Technological Development -CNPq [301758/2019-0]
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The study shows that the two-step treated pine wood has higher thermal stability, termite resistance, water uptake, and surface hydrophobicity, while maintaining similar decay resistance and surface color and roughness compared to heat-treated wood.
This study deals with a two-step treatment, in which a thermorretification at 180 degrees C for 2 his followed by the in situ polymerization of polystyrene into a fast-growing pine wood. The treatment with polystyrene recovered losses in both stiffness and strength attributed to the thermal modification. Compared to the heat-treated wood, the two-step treated pine wood presented higher thermal stability (40%), termites resistance (8%), water uptake (300%), hydrophobicity, along with similar decay resistance, and surface colour and roughness.
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