Indexed on: 01 Aug '79Published on: 01 Aug '79Published in: Journal of Thermal Analysis and Calorimetry
The flame-retardation of Pyrovatex CP on cellulose substrate has been studied. Since levoglycosan, responsible for the fiammability of cellulose, is formed in the main decomposition process by dehydration, the amounts of water vapour released from untreated and treated cellulose during this process were measured. The water contents of the decomposition products obtained in thermal measurements were absorbed in dioxan and determined dielectrometrically.The results show that the water content of the decomposition products of untreated cellulose is much higher than that of treated cellulose. A reaction mechanism is suggested.