Thermogravimetric studies of decomposition kinetics of six different IAC Hevea rubber clones using Flynn-Wall-Ozawa approach
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Data
2006-02-01
Autores
Moreno, R. M. B.
Medeiros, Eliton Souto de
Ferreira, F. C.
Alves, Neri [UNESP]
Goncalves, P. S.
Mattoso, L. H. C.
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ISSN da Revista
Título de Volume
Editor
Maney Publishing
Resumo
The thermal degradation behaviour of rubber from six new Hevea brasiliensis clones (IAC 40, 56, 300, 301, 302 and 303) from São Paulo State, Brazil was studied by thermogravimetry using the Flynn-Wall-Ozawa approach to assess the kinetic parameters ( reaction order, activation energy and pre-exponential factor) of the decomposition process. This study indicated that the thermal behaviour is a complex multiple step process, which depends on the type of rubber Hevea clones studied. The rubber from these clones can be classified, following the order of decreasing thermal stability, as IAC 303 > 302 > 56 > 40 > 300 > 301.
Descrição
Palavras-chave
Rubber Hevea clones, Degradation kinetics, Flynn-Wall-Ozawa approach, Thermogravimetry
Como citar
Plastics Rubber and Composites. Leeds: Maney Publishing, v. 35, n. 1, p. 15-21, 2006.