Thermally modified wood
From Wikipedia, the free encyclopedia
Thermally modified wood is wood that has been modified by a controlled pyrolysis process of wood being heated to (> 180 °C) in an oxygen free atmosphere. This process changes to the chemical structures of wood's cell wall components lignin, cellulose and hemicellulose which increases its durability.[1] Low oxygen content prevents the wood from burning at these high temperatures. Several different technologies are introduced using different media including nitrogen gas, steam and hot oil.