Efeito da concentração do catalisador acetilacetonato férrico na cura de poliuretano à base de polibutadieno líquido hidroxilado (PBLH) e diisocianato de isoforona (IPDI)

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorPaterlini, Willian César
dc.creatorBotelho, Edson Cocchieri
dc.creatorRezende, Luís Cláudio
dc.creatorLourenço, Vera Lucia
dc.creatorRezende, Mirabel Cerqueira
dc.date2014-05-20T14:18:51Z
dc.date2016-10-25T17:40:46Z
dc.date2014-05-20T14:18:51Z
dc.date2016-10-25T17:40:46Z
dc.date2002-05-01
dc.date.accessioned2017-04-05T22:29:37Z
dc.date.available2017-04-05T22:29:37Z
dc.identifierQuímica Nova. Sociedade Brasileira de Química, v. 25, n. 2, p. 221-225, 2002.
dc.identifier0100-4042
dc.identifierhttp://hdl.handle.net/11449/25686
dc.identifierhttp://acervodigital.unesp.br/handle/11449/25686
dc.identifier10.1590/S0100-40422002000200009
dc.identifierS0100-40422002000200009
dc.identifierS0100-40422002000200009.pdf
dc.identifierhttp://dx.doi.org/10.1590/S0100-40422002000200009
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870543
dc.descriptionThe reaction between hydroxy-terminated polybutadiene and isophorone diisocyanate constitutes the base of the curing process of the most composite solid propellant used in the propulsion of solid rocket propellant. In this work, differential scanning calorimetry and viscosity measurements were used to evaluate the effect of the ferric acetylacetonate catalyst concentration on the reaction between HTBR and IPDI. These analyses show one exotherm, which shifts to lower temperatures as the catalyst concentration increases. The viscosity analyses show that the increase of temperature causes, at first, a reduction in the mixture viscosity, reaching a minimum range called gelification region (increasing the crosslinking density).
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languagepor
dc.publisherSociedade Brasileira de Química
dc.relationQuímica Nova
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectdifferential scanning calorimetry (DSC)
dc.subjectviscosity analysis
dc.subjectcomposite solid propellant
dc.titleEfeito da concentração do catalisador acetilacetonato férrico na cura de poliuretano à base de polibutadieno líquido hidroxilado (PBLH) e diisocianato de isoforona (IPDI)
dc.typeOtro


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