Role of urea and melamine as synergic co-plasticizers for starch composites for fertilizer application
| Autor: | Caue Ribeiro, Greg M. Glenn, Luiz Alberto Colnago, Rodrigo H.S. Garcia, Amanda S. Giroto, Artur Klamczynski |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Starch
02 engineering and technology engineering.material Spectrum Analysis Raman Biochemistry 03 medical and health sciences chemistry.chemical_compound Crystallinity X-Ray Diffraction Structural Biology Plasticizers Urea Leaching (agriculture) Composite material Carbon-13 Magnetic Resonance Spectroscopy Fertilizers Molecular Biology 030304 developmental biology 0303 health sciences Calorimetry Differential Scanning Chemistry Triazines Plasticizer food and beverages General Medicine 021001 nanoscience & nanotechnology engineering Extrusion Fertilizer 0210 nano-technology Melamine |
| Zdroj: | International journal of biological macromolecules. 144 |
| ISSN: | 1879-0003 |
| Popis: | Herein we describe the interaction of starch, urea, and melamine (C3N6H6) in composite materials for use as controlled-release plant fertilizer. Slow-release fertilizers are important in minimizing nutrient losses due to run-off, leaching, and other factors. Urea is an effective plasticizer for starch and is an important nitrogen fertilizer throughout the world. Melamine also has high nitrogen content and could be combined with urea-starch composites to provide enhanced controlled-release fertilizer. This study reports the structural interaction and the performance gain of melamine addition to starch-urea composites. Composites were characterized by spectroscopic techniques (FT-Raman and 13C NMR) detailing the interaction between melamine, urea, and starch. These interactions helped facilitate extrusion processing by lowering viscosity and processing temperatures suggesting an enhanced starch plasticizing effect of starch-urea-melamine composites. Further research into the co-plasticization of starch by urea and melamine could be exploited for improved controlled-release fertilizer products. Further research into the co-plasticization of starch by urea and melamine could be exploited for improved controlled-release fertilizer products. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect