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CHEMISTRY AND CHEMICAL ENGINEERING

CHEMISTRY AND CHEMICAL ENGINEERING

DOI

10.51348/DHQO8190

Abstract

The aim of this work is to synthesize highly swellable superabsorbent hydrogels based on starch copolymers. To achieve this goal, mineral-containing superabsorbent hydrogels based on starch, acrylamide, binder and initiator were synthesized. The optimal synthesis conditions were determined and studies were carried out on the influence of the molar ratios of the starting substances on the composition and physicochemical properties of the synthesized superabsorbent hydrogel. In the course of research, the optimum copolymerization temperature was 60 ° C, and the reaction time was 3 hours.

As a result of the study, a superabsorbent hydrogel based on starch, acrylamide and bentonite in mass ratios of 10: 9: 0.8, respectively, was obtained with very good performance. Were studied IR spectroscopy and differential thermogravimetric analysis of the obtained superabsorbent hydrogel. The degree of swelling of superabsorbent hydrogels in distilled water and solutions of various salts with different concentrations was also determined. The effect of molar ratios of starch and acrylamide, concentrations of initiator, binder and bentonite, as well as the nature of substances on the degree of swelling of synthesized superabsorbent hydrogels was studied.

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