Synthesis of Superabsorbent Hydrogels Based on Starch Copolymer/Minerals Powder

Synthesis of Superabsorbent Hydrogels Based on Starch Copolymer/Minerals Powder
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© 2022 by IJETT Journal
Volume-70 Issue-12
Year of Publication : 2022
Author : Bakhodir Kholnazarov, Khayit Turaev, Abdulakhad Djalilov
DOI : 10.14445/22315381/IJETT-V70I12P234

How to Cite?

Bakhodir Kholnazarov, Khayit Turaev, Abdulakhad Djalilov, "Synthesis of Superabsorbent Hydrogels Based on Starch Copolymer/Minerals Powder," International Journal of Engineering Trends and Technology, vol. 70, no. 12, pp. 351-358, 2022. Crossref, https://doi.org/10.14445/22315381/IJETT-V70I12P234

Abstract
This study aims to obtain a low-cost agricultural hydrogel is containing mountain minerals based on starch copolymer. Also, the effect of mountain minerals - bentonite, kaolin and montmorillonite on water absorption of superabsorbent hydrogels was studied in the research work. During the studies, it was found that the optimal temperature of copolymerization is 65 °C, and the reaction duration is 4 hours. The water absorption of the resulting hydrogels in various concentrations of distilled water and saline solutions was determined. The effects of starch and acrylamide mole ratios, initiator, binder and mountain minerals - bentonite, montmorillonite and kaolin concentrations on the degree of swelling of the synthesized superabsorbent hydrogels were studied. It has been established that minerals added during the synthesis of hydrogels increase the water absorption of hydrogels and reduce their cost.

Keywords
Starch, Acrylamid, Macromolecular hydrogel, Crosslinking agent, Radical polymerization.

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