Abstract
AbstractIn this article, a tamarind seed gum‐g‐poly (acrylic acid‐co‐2‐Acrylamido‐2‐methyl‐1‐propane sulfonic acid/polyvinyl alcohol) (TSG‐g‐P[AA‐co‐AMPS/PVA]) was prepared by aqueous solution polymerization. The Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis were used to characterize. The swelling behaviors, reusability and water‐retention capabilities of hydrogels were evaluated. Under optimum synthesis conditions, the maximum equilibrium absorption of hydrogel was 1295 g·g−1, 208 g·g−1, 116 g·g−1 in deionized water, tap water and NaCl solution (0.9 wt%) respectively. Application of the hydrogel to soils increased their water‐holding and fertilizer retention capacities. Furthermore, the excellent water retention anti‐evaporation performance indicated that the hydrogel has the potential for applications in future sustainable agriculture and forestry.
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