Biodegradable Nanocomposite Microcapsules for Controlled Release of Urea.

ABSTRACT: Urea is the most used fertilizer around the world as the main source of nitrogen to soil and plants. However, the administration of nitrogen dosage is critical, as its excess can be harmful to the environment. Therefore, the encapsulation of urea to achieve control on its release rates has been considered in several areas. In this work, encapsulation of urea by biodegradable polymer poly(3-hydroxybutyrate) (PHB) and its nanocomposites, namely PHB/MMT and PHB/OMMT, producing microcapsules by emulsion method is carried out. MMT and OMMT refer to Brazilian clays in a natural state and organophilized, respectively. In addition, the microcapsules are thus prepared to have their physicochemical characteristics investigated, then tested for biodegradation. Increment of microcapsules' crystallinit

SUBMITTER: de Carvalho Arjona J 

PROVIDER: S-EPMC7956393 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature