Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Smolder of cellulosic fabrics. II. Water, alkali and inner oxygen as variables
Pyrolysis and oxidative decomposition of cellulosic fabric were studied. Alkali metal compounds were found to be essential for sustaining smoldering and to promote oxidative degradation of cellulose and assist cleavage of sugars only in the presence of water. Decomposition activity of cellulose decreased with dehydration. Study of temperature programmed reactions (TPR) in He suggested the production of CO(x) via intermediate oxygen-containing compounds. Intramolecular redox reactions below 300 deg C were suggested to explain the formation of a part of CO2. Peroxide groups were found in no.6 duck fabric. They may be responsible for oxidative decomposition of cellulose around 200 deg C. Two peaks of CO(x) formation rate, obtained from TPR experiments, were attributed to intramolecular redox reaction, followed by decarboxylation, and oxidation of carbohydrates by residual bound oxygen. Water washing may increase the fabric/gas permeability.
Smolder of cellulosic fabrics. II. Water, alkali and inner oxygen as variables
Pyrolysis and oxidative decomposition of cellulosic fabric were studied. Alkali metal compounds were found to be essential for sustaining smoldering and to promote oxidative degradation of cellulose and assist cleavage of sugars only in the presence of water. Decomposition activity of cellulose decreased with dehydration. Study of temperature programmed reactions (TPR) in He suggested the production of CO(x) via intermediate oxygen-containing compounds. Intramolecular redox reactions below 300 deg C were suggested to explain the formation of a part of CO2. Peroxide groups were found in no.6 duck fabric. They may be responsible for oxidative decomposition of cellulose around 200 deg C. Two peaks of CO(x) formation rate, obtained from TPR experiments, were attributed to intramolecular redox reaction, followed by decarboxylation, and oxidation of carbohydrates by residual bound oxygen. Water washing may increase the fabric/gas permeability.
Smolder of cellulosic fabrics. II. Water, alkali and inner oxygen as variables
Schwelen von Cellulosegeweben. II. Wasser, Alkali und innerer Sauerstoff als Variablen
Dyakonov, A.J. (Autor:in) / Grider, D.A. (Autor:in)
Journal of Fire Sciences ; 17 ; 71-85
1999
15 Seiten, 9 Bilder, 7 Quellen
Aufsatz (Zeitschrift)
Englisch
Smolder of Cellulosic Fabrics. II. Water, Alkali and Inner Oxygen as Variables
| Online Contents | 1999
Smolder of Cellulosic Fabrics. II. Water, Alkali and Inner Oxygen as Variables
| British Library Online Contents | 1999
Smolder of Cellulosic Fabrics. I. Development of a Framework
| Online Contents
Smolder of Cellulosic Fabrics. I. Development of a Framework
| British Library Online Contents | 1998
Smolder of Cellulosic Fabrics. I. Development of a Framework
| Online Contents | 1998