Safe shelf life of single-base propellants Tempo de vida útil de propelentes base-simples

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dc.contributor.authorAndrade J.
dc.contributor.authorIha K.
dc.contributor.authorRocco J.A.F.F.
dc.contributor.authorPinheiro G.F.M.
dc.contributor.authorMoreira E.D.
dc.contributor.authorSuarez-Iha M.E.V.
dc.date.accessioned2024-03-13T01:38:42Z
dc.date.available2024-03-13T01:38:42Z
dc.date.issued2008
dc.description.abstractThe purpose of this work was to determine the safe shelf life of single-base propellants. The kinetic parameters relative to the consumption of the stabilizer diphenylamine (DPA) added to the propellant were determined as a function of the storage and ageing time. High Performance Liquid Chromatography (HPLC) with spectrophotometric detection was used to determine the DPA percentage before and after the artificial ageing at 60, 70 and 80°C. The experimental data were very well adjusted to a pseudo-first order kinetic model and the respective kinetic constants are 8.0·10-3 day -1 (60°C); 1.9·10-2 day-1 (70°C); 1.2·10-1 day-1 (80°C). The activation energy was calculated as 130_-kJ mol-1 and the half-time for depletion of the DPA at the hypothetical temperature of 40°C of storage was estimated as being 6 years.
dc.description.firstpage569
dc.description.issuenumber3
dc.description.lastpage573
dc.description.volume31
dc.identifier.doi10.1590/s0100-40422008000300020
dc.identifier.issn1678-7064
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/37584
dc.relation.ispartofQuimica Nova
dc.rightsAcesso Aberto
dc.subject.otherlanguageDiphenylamine
dc.subject.otherlanguageKinetics
dc.subject.otherlanguageSingle-base
dc.titleSafe shelf life of single-base propellants Tempo de vida útil de propelentes base-simples
dc.typeArtigo
local.scopus.citations3
local.scopus.eid2-s2.0-45849096774
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=45849096774&origin=inward
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