Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2022 - October 09, 2022
Influence of fiber structure on flame extinction of cellulose materials has been investigated varying oxygen concentration. Filter paper and Washi (Japanese paper) were used as the samples with fiber structure, whereas bacterial cellulose was used as the sample without fiber structure. Thermogravimetric analysis reveals that char production in pyrolysis in an air atmosphere is suppressed when the sample has fiber structure. The limiting oxygen concentration and burning rate were obtained by downward flame spread experiments. The limiting oxygen concentration for the sample with fiber structure is lower than the sample without fiber structure. On the other hand, it is implied that the dependency of flame spread rate on fiber structure is weak.
