Thermo-gravimetric Analysis on the Leaves of 16 Hardwood Species in Kunming Area
Ge WeiWei, Hongyu Zhang, Tang ChaoGang, Shiyou Li · Linchan huaxue yu gongye · 2010
Thermo-gravimetric analysis was used to study the leaves of 16 species of hardwoods collected in Kunming area.The result showed that the pyrolysis process of leaves included three stages,namely drying,fast-pyrolysis and carbonization.The weight loss during the fast-pyrolysis stage was about 65 %.The fast-pyroysis process could be described by the first-order model and Coats-Redfern method.Fireproof properties of Lithoca mairei and Ternstroemia gymnanther leaves are greater than other hardwood leaves.Their kindling point,activation energy and buring characteristics index were 282.7 ℃,43.1 kJ/mol,0.764×10-6 and 264.6 ℃,41.4 kJ/mol,0.635 1×10-6,respectively.