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http://www.repositorio.ufop.br/jspui/handle/123456789/9956
Título: | Polymeric microparticles for modified release of NPK in agricultural applications. |
Autor(es): | Chagas, Júnior Olair Gomes, José Messias Cunha, Isabela Cristina de Matos Melo, Nathalie Ferreira Silva de Fraceto, Leonardo Fernandes Silva, Gilmare Antônia da Lobo, Fabiana Aparecida |
Palavras-chave: | Polymeric microparticles Fertilizers Polyglycerol Modified release |
Data do documento: | 2018 |
Referência: | CHAGAS, J. O. et al. Polymeric microparticles for modified release of NPK in agricultural applications. Arabian Journal of Chemistry, v. 1, p. 1, 2018. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1878535218300650>. Acesso em: 05 abr. 2018. |
Resumo: | The aim of this work was to synthesize polymeric microparticles as carriers for nitrogen, phosphorus, and potassium (NPK fertilizer) for agricultural applications, using polyglycerol (PG) to improve the synthesis procedure. Multivariate experimental designs were employed to obtain a satisfactory synthesis. The desirability function identified the best conditions for preparation of the microparticles as being 100.00 mg of poly(e-caprolactone) (PCL), 825.00 mg of PG, 9.25 mL of chloroform, and 0.9% w/v of polyvinyl alcohol (PVA). This resulted in average encapsulation rates of 94.23% for N, 99.80% for P, and 65.00% for K. The profile of release from the microparticles was according to diffusion following Fick’s Law. These observations confirmed the capacity of the proposed microparticles to sustain a continuous and prolonged release of NPK for the purpose of plant fertilization. |
URI: | http://www.repositorio.ufop.br/handle/123456789/9956 |
ISSN: | 18785352 |
Licença: | This is an open access article under the CC BY-NC-ND license. Fonte: o próprio artigo. |
Aparece nas coleções: | DEQUI - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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ARTIGO_PolimericMicroparticlesModified.pdf | 1,43 MB | Adobe PDF | Visualizar/Abrir |
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