KRAXMAL, AKRIL KISLOTA VA BENTONIT ASOSIDAGI KOMPOZIT GIDROGELLARNING SINTEZI VA TAVSIFI

In this study, starch-g-acrylic acid/bentonite (St-AA/B) composite hydrogels were successfully synthesized by graft copolymerization using starch as a natural polymer and bentonite as a mineral component. The main objective of the study was to develop environmentally friendly composite hydrogel materials with high water absorption and swelling capacities and potential applications in agriculture. During the synthesis process, acrylic acid was grafted onto the macromolecular structure of starch in the presence of N,N′- methylenebisacrylamide (MBA) as a cross-linking agent and an initiator. The main factors affecting the water absorption capacity of the hydrogel, including the mass content of bentonite and the volumetric ratio of the components, were investigated. The chemical structure and functional groups of the obtained composites were analyzed using Fourier- transform infrared spectroscopy (FTIR). The results confirmed the interaction between starch, acrylic acid, and bentonite components within the composite hydrogel structure. The morphological characteristics of the synthesized product were examined using scanning electron microscopy (SEM), which revealed a developed and porous structure of the composite material. The obtained results indicate that starch-acrylic acid/bentonite composite hydrogels have significant potential for use as water-retaining materials, soil moisture-regulating agents, and components for improving the efficiency of mineral fertilizer utilization in agriculture.

Hali tarjima qilinmagan