Premium
The functionally graded wood observed from chemical and thermal perspectives
Author(s) -
Getto H.,
Ishihara S.
Publication year - 1998
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/(sici)1099-1018(1998070)22:4<141::aid-fam647>3.0.co;2-b
Subject(s) - fire retardant , carbonization , phosphoric acid , combustion , chemical reaction , materials science , composite material , pressing , nitrogen , pulp and paper industry , waste management , forensic engineering , environmental science , chemistry , engineering , organic chemistry , metallurgy , scanning electron microscope
The fire retardance of wood treated with basic nitrogen compounds and phosphoric acid is improved. It was investigated which chemicals were suitable for the fire retardant treatment of wood and how chemicals influenced fire retardance and endurance from the perspective of chemical reaction and also it was investigated how chemicals and treatment methods influenced fire retardance and endurance from a thermal perspective. Although the fire endurance was improved by a heat‐pressed treatment method, the chemical reaction was carried out by heat irrespective of the pressing or drying method. The wood structure would become complex as the cross‐linked structure occurred by chemicals and pressure. Its structure would be maintained at combustion. Fire endurance of wood is shown to be related to a cross‐linked structure created by a chemical and/or physical reaction rather than thermal factors related to the carbonized product. © 1998 John Wiley & Sons, Ltd.