Optimizing Waterborne Polyacrylate Coating for Controlled-Release Fertilizer Using a Wurster Fluidized Bed and Its Effects on Rice Yield.

ABSTRACT: The efficacy of coated fertilizers in enhancing nutrient use efficiency and reducing environmental impacts depends on their coating properties. This study developed three biodegradable, waterborne polyacrylate latexes (A, B, and C) as eco-friendly coatings for controlled-release fertilizers (CRFs) using the Wurster fluidized bed process. The latexes were synthesized with varying hard-to-soft monomer ratios and cross-linked with 2 wt% aziridine to investigate how monomer composition affects coating properties and nutrient release. The results showed that coating B, which had an intermediate hard-to-soft monomer ratio, demonstrated optimal properties. It exhibited the lowest swelling capacity (2.54% at 60 °C), a suitable glass transition temperature (15.34 °C), and the slowest nutrient relea

SUBMITTER: Zhao C 

PROVIDER: S-EPMC12609992 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature