| Titre : | Evaluation of waterborne coating for controlled - release fertilizer using wurster fluidized bed (2011) |
| Auteurs : | Zhao Cong, Auteur ; Shen Yazhen, Auteur ; Du Changwen, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 49 N° 20, Octobre 2010) |
| Article en page(s) : | pp. 9644–9647 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Fluidized bed Fluidization Fertilization Fertilizers |
| Résumé : | Coating through polymer film to control nutrient release can reduce the nutrient losses and minimize environmental contamination. In this research, the waterborne acrylate latex and additive (cross-linker aziridine) were used to develop coated controlled-release fertilizers by Wurster-type fluidized bed, and the influences of different cross-linker percentage on the coating properties and the nutrient-release profiles were investigated. The results indicated that the waterborne coating coupled with the 2 wt % of cross-linker could effectively decrease the swelling capacity of the membrane to 5.54 ± 0.32% while obtaining a suitable Tg (6.13 °C); the cumulative nutrient-release percentage was significantly improved to around 40% in 9 days at 40 °C. This organic solvent-free coating provided a promising option for the development of coated controlled-release fertilizer. |
| DEWEY : | 660 |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=23325783 |
