Thermogravimetric analysis during the decomposition of cotton fabrics in an inert and air environment

Chemical Engineering Department, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain
Journal of Analytical and Applied Pyrolysis (Impact Factor: 3.56). 06/2006; 76(1-2):124-131. DOI: 10.1016/j.jaap.2005.09.001
Source: OAI


The thermal degradation of samples of used cotton fabrics has been investigated using thermogravimetric analysis (TGA) between room temperature and 700 °C. Experiments were carried out with about 5 mg of sample in three different atmospheres: helium, 20% oxygen in helium and 10% oxygen in helium. Three different heating rates were used at each atmosphere condition. A kinetic model for the decomposition of used cotton fabrics explaining the behavior of all the runs performed has been proposed and tested. For the pyrolysis of the cotton, the model comprises two parallel reactions. For the combustion process, one competitive reaction was added to each parallel reaction of the pyrolysis model and four combustion reactions of the different solid fractions to obtain volatiles. One single set of parameters can explain all the experiments (pyrolysis, oxidative pyrolysis and combustion) at the three different heating rates used.

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Available from: Julia Moltó, Apr 07, 2014
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    • "Both samples exhibited a similar behavior. As the heating rate increased, there was a displacement of the TG curves to higher temperatures (Moltó et al., 2006). This thermal behavior provided information on the reliability of the thermogravimetric data for the application of the kinetic method "
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    • "Few studies have examined simultaneously the thermal degradation of these materials in inert and oxidizing atmosphere. These works have highlighted the influence of oxygen on the mass loss [9], the gaseous products [9] [10] [11] and the kinetics [10] [11] [12] [13] [14] [15] [16]. However, there are still questions "
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