期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 135, 期 47, 页码 -出版社
WILEY
DOI: 10.1002/app.46858
关键词
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资金
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [CNPq 474940/2012-8, 550030/2013-1, 301461/2015-5]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Financiadora de Estudos e Projetos (FINEP PRESAL) [1889/10]
- Brazilian Synchrotron Light Laboratory [SAXS1-20160027]
- Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Controlled-release fertilizer is one of the most critical tools in agribusiness for decreasing environmental impacts. Thus, the development of bio-based systems able to induce the slow release of fertilizers has become the focus of numerous researchers. In this sense, this work presents a slow-release fertilizer prepared by melt mixing of poly(butylene succinate) filled with 30 wt % urea and 5 wt % montmorillonite clay. The obtained materials were characterized using FTIR, XRD, and SAXS. Also, the release of urea was investigated using gravimetric and spectrophotometric tests. Finally, a vegetable growth analysis was performed to evaluate the development of lettuce (Lactuca sativa L.). The best composite material can increase the diameter of the lettuce by 67%, whereas the conventional use of urea increased this diameter by 48%. Therefore, the presented materials are useful as fertilizer systems.
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