Authors:
Eliton Medeiros Universidade Federal da Paraíba Departamento de Engenharia e Materiais, Centro de Tecnologia, Cidade Universitaria CEP 58051-900 João Pessoa PA Brazil

Search for other papers by Eliton Medeiros in
Current site
Google Scholar
PubMed
Close
,
Patrini Galiani

Search for other papers by Patrini Galiani in
Current site
Google Scholar
PubMed
Close
,
Rogerio Moreno Embrapa Instrumentação Agropecuária Laboratório Nacional de Nanotecnologia para o Agronegócio C.P. 741 CEP 13560-970 São Carlos SP Brazil

Search for other papers by Rogerio Moreno in
Current site
Google Scholar
PubMed
Close
,
Luiz Mattoso Embrapa Instrumentação Agropecuária Laboratório Nacional de Nanotecnologia para o Agronegócio C.P. 741 CEP 13560-970 São Carlos SP Brazil

Search for other papers by Luiz Mattoso in
Current site
Google Scholar
PubMed
Close
, and
José Malmonge UNESP, São Paulo State University Departamento de Física e Química 15.385-000 Ilha Solteira SP Brazil

Search for other papers by José Malmonge in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

Due to the increasing search for alternative sources of natural rubber (NR) whose properties are similar to Hevea brasiliesis, several sources have been studied in the past few years. Among them, Mangabeira (Hancornia speciosa Gomes), which is native to Amazon rainforest and other regions of Brazil, has a potential as another viable rubber source. As a continuation of a series of comparative studies between Hancornia and Hevea (clone RRIM 600) these two species by our research team, their thermal behavior was analyzed by thermogravimetry (TG) using Flynn–Wall–Ozawa’s approach in order to obtain kinetic parameters (reaction order, pre-exponential factor and activation energy) of the decomposition process. Results indicated that the thermal behavior of NR from Hancornia was comparable to Hevea with some differences observed as follows: reaction order for Hancornia was higher than for Hevea at the beginning of degradation and very close for temperatures over 350 °C; activation energy and pre-exponential factor had the same trend, i.e., increased with increasing degree of conversion remaining almost constant between 20 and 70% and then increasing for higher degrees, although Hevea was slightly more thermally stable than Hancornia. These major influences in the degradation process in the early stage are attributed to differences in non-rubber constituents present in these two species.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Aug 2024 6 0 0
Sep 2024 3 0 0
Oct 2024 19 0 0
Nov 2024 9 0 0
Dec 2024 12 0 0
Jan 2025 16 0 0
Feb 2025 4 0 0