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Can I read Controlled release fertilizer with temperature-responsive behavior coated using polyether polyol (PPG) on EtoBox?
Controlled release fertilizer with temperature-responsive behavior coated using polyether polyol (PPG) by D. Qiao; J. Li; S. Zhang; X. Yang is a Materials Science article available to read on EtoBox.
What is Controlled release fertilizer with temperature-responsive behavior coated using polyether polyol (PPG) about?
The development of the temperature-responsive controlled release fertilizers (CRFs) can tune the nutrient release matching plant demands even when temperature fluctuates. Herein, polycaprolactone (PCL) with different molecular weights (PCL500, PCL1000, PCL2000 and PCL3000) were used as raw materials and six types of PU films as coating materials for CRFs were synthesized by reacting the polyether polyol (PPG)/PCL blends and methylene diphenyl diisocyanate (MDI). Furthermore, the CRFs coated using PU films (PUCFs) were prepared in a fluidized bed device by in-situ reaction method, and the nitrogen (N) release rate of PUCFs was measured by water immersion experiment. The temperature sensitivity and compositions of PU films were evaluated with differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). Results showed that PUCFs based on PCL500 satisfied the CRF ISO standard, but the corresponding PU film had no temperature-responsive property. However, PUCFs based on PCL2000 and the corresponding PU film showed the opposite results. FTIR and XRD results showed that the PPG/PCL2000 blends could copolymerize with MDI to format the
Who reads Controlled release fertilizer with temperature-responsive behavior coated using polyether polyol (PPG)?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- D. Qiao; J. Li; S. Zhang; X. Yang
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Materials Science (Physical Sciences)