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Journal of Polymer Research

, 26:266 | Cite as

Synthesis, characterization, and morphology study of coco peat-grafted-poly(acrylic acid)/NPK slow release fertilizer hydrogel

  • Ros Azlinawati RamliEmail author
  • Yuen Mei Lian
  • Noraishah Mohamad Nor
  • Nur Iffah Zulaikha Azman
ORIGINAL PAPER
  • 105 Downloads

Abstract

Coco peat-grafted-poly(acrylic acid)/NPK [CP-g-P(AAc)/NPK] slow release fertilizer hydrogel (SRFH) was prepared by grafting coco peat fiber onto acrylic acid in the presence of NPK 15–15-15 fertilizer using in-situ solution polymerization technique. Commercial super absorbance polymer (CSAP) was used to compare the properties of SRFH. The hydrogels were characterized by fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and ultraviolet-visible spectroscopy (UV-Vis). The grafting reaction is approved by the disappearance of peak at 973 cm−1 of FTIR spectrum. DSC results revealed that SRFH had high glass transition temperature, Tg compared to CSAP. SEM images showed that SRFH had low porosity and compact structure than CSAP. Fertilizer release study showed that the amount of nutrient release is greatly improved by SRFH.

Keywords

Coco peat Grafting Hydrogel Fertilizer Acrylic acid Crosslinked 

Notes

Acknowledgements

The author would like to thank to Ministry of Education Malaysia (PRGS/1/2019/TK10/UMP/02/2) and Universiti Malaysia Pahang (RDU190807) for the financial support.

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Copyright information

© The Polymer Society, Taipei 2019

Authors and Affiliations

  1. 1.Material Technology Program, Faculty of Industrial Sciences & TechnologyUniversiti Malaysia Pahang (UMP)KuantanMalaysia

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