Biodegradable Starch Sachets Reinforced with Montmorillonite for Packing ZnO Nanoparticles: Solubility and Zn2+ Ions Release

Agriculture’s importance in human lives and the economy has directed studies to improve crop production. An essential challenge for improving fertilizer efficacy is reducing losses due leaching increasing nutrient supplies. In this context, biodegradable sachets stand out as internal packaging instead of direct insertion into polymer matrix, facilitating system processing making it easier adapt soil’s nutritional quantity. Thus, present work aimed increase zinc oxide (ZnO) solubility by obtaining nanoparticles using top-down bottom-up approaches them montmorillonite (MMT) reinforced starch sachets. The different diameters forms ZnO were evaluated understand dependence on these parameters. way, process attritor milling method allowed with about 71 nm average diameter greater homogeneity than commercial one (approximately 174 nm). milled presented better those synthesized processes ones, reaching a 90 100% plateau 48 h. Concerning sachets, 1% MMT (w w? 1) polymeric matrix promoted increased water vapor barrier mechanical properties, tensile strength. test nanoparticulate packed similar behaviors free observed high affinity water. Therefore, sachet systems improved properties from reinforcement showed an alternative source Zn2+ ions minimize during application.