Development of controlled release fertilizer systems for KCl using glycerol-based polymers

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorPimenta, Igor F.-
Autor(es): dc.creatorFigueiredo, Lucas R. F.-
Autor(es): dc.creatorSantos, Adillys M. C.-
Autor(es): dc.creatorOliveira, Juliano E.-
Autor(es): dc.creatorMedeiros, Eliton S.-
Data de aceite: dc.date.accessioned2026-02-09T12:25:55Z-
Data de disponibilização: dc.date.available2026-02-09T12:25:55Z-
Data de envio: dc.date.issued2022-04-01-
Data de envio: dc.date.issued2022-04-01-
Data de envio: dc.date.issued2021-10-12-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/49651-
Fonte completa do material: dc.identifierhttps://onlinelibrary.wiley.com/doi/10.1002/app.51747-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1161193-
Descrição: dc.descriptionControlled release systems were developed using biodegradable polymers/copolymers via polycondensation of glycerol with acids (citric, adipic, and succinic) with potassium chloride (KCl) 0, 10, 20, and 40 wt% followed by crosslinking at 120°C. Polymers were characterized by thermogravimetry, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and UV-Vis spectroscopy. All are thermally stable up to 200°C, therefore suitable for release in countries where temperatures reach 50°C. Fractographic analysis showed rubbery (rough and ductile) and hard (smooth and brittle) polymers depending on the acid used. The release profiles showed that hydrophilic (polar) polymers are easily hydrolyzed, generating faster release reaching 52% in 120 h. Less polar polymers delay KCl release below 20% at the same time. Therefore, it was possible to adjust the release by controlling the fertilizer content and the type of polymer, designing a fast or slow release to meet the needs of a given crop.-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Applied Polymer Science-
Palavras-chave: dc.subjectBiodegradable-
Palavras-chave: dc.subjectBiopolymers-
Palavras-chave: dc.subjectRenewable polymers-
Palavras-chave: dc.subjectPolycondensation-
Título: dc.titleDevelopment of controlled release fertilizer systems for KCl using glycerol-based polymers-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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