Thermogravimetric Analysis of Superabsorbing Polyacrylic Hydrogel

Abstract:

Article Preview

The thermogravimetric analysis of superabsorbing polyacrylic hydrogel dehydration, performed under non-isothermal conditions at different heating rates was discussed. Particularly, the influence of the heating rate on the obtained results is given in detail. For this purpose the Weibull distribution function was applied. The thermogravimetric curve when the heating rate tends to zero was evaluated. The activation energy E = 63 kJ/mol, pre-exponential factor A = 2.97 × 108 min−1, and rate constant k = 2.76 × 10−3 min−1 were determined on the basis of this curve.

Info:

Periodical:

Edited by:

Dragan P. Uskokovic, Slobodan K. Milonjic, Djan I. Rakovic

Pages:

193-198

DOI:

10.4028/www.scientific.net/MSF.494.193

Citation:

B. Janković et al., "Thermogravimetric Analysis of Superabsorbing Polyacrylic Hydrogel", Materials Science Forum, Vol. 494, pp. 193-198, 2005

Online since:

September 2005

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.