Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/9358
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Type: Artigo de Periódico
Issue Date: Jul-2016
Authors: KIRCHHOF, Edemar
ROCHA, Roberta Jachura
NAKAMURA, Nanci Miyeko
LAPA, Camila Maria
PINHEIRO, Glaci Ferreira Martins
GONÇALVES, Rene Francisco Boschi
ROCCO, José Atílio Fritz Fidel
ILHA, Koshun
Title: Estimativa de vida útil do pbx (plastic-bonded explosive) com envelhecimento acelerado
Other Titles: Estimate of pbx (plastic-bonded explosive) shelf life with accelerated aging
Citation: KIRCHHOF, Edemar et al. Estimativa de vida útil do pbx (plastic-bonded explosive) com envelhecimento acelerado. Química Nova, São Paulo, v. 39, n. 6, p. 661-668, jul. 2016. Disponível em: <http://repositorio.ufpa.br/jspui/handle/2011/9358>. Acesso em:.
Abstract: This article aims to estimate the shelf life of the PBX by thermal analysis estimated by the Arrhenius equation, equivalent to the time of storage at accelerated aging. The PBX was subjected to accelerated aging in an oven at controlled temperature 60 ºC for periods of 5, 10, 15 and 25 weeks, which are equivalent to 5, 10, 15 and 25 of natural aging, respectively, at a temperature of 25 ºC. The curves of thermal decomposition of the samples were obtained by the DSC (Differential Scanning Calorimetry) technique. The kinetic parameters, such as the activation energy and pre-exponential factor, were determined by the Ozawa method and the Kissinger method. Initial results of this study indicated that, for a period of 25 years of storage in the cargo hold, the material did not change this aging significantly. To study the life of PBX analyzes, vacuum chemical stability were also conducted to verify the safety of explosive handling.
Keywords: Explosivo PBX
CNPq: CNPQ::ENGENHARIAS::ENGENHARIA MECANICA
metadata.dc.relation.ispartof: Química Nova
ISSN: 0100-4042
1678-7064
Country: Brasil
Publisher: Universidade Federal do Pará
Institution Acronym: UFPA
metadata.dc.source.uri: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000600661&lng=pt&nrm=iso
metadata.dc.identifier.doi: http://dx.doi.org/10.5935/0100-4042.20160072
Appears in Collections:Artigos Científicos - FEM/ITEC

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