Abstract
In this work, with the aim of improving the water uptake behavior and mechanical properties, a novel nano-composite hydrogel system was synthesized using clinoptilolite as a semi-layered zeolite. Accordingly, the gelatin/SCMC-g-poly (AA-co-AAm)/clinoptilolite semi-IPN nano-composite hydrogel samples were synthesized and studied. The FTIR, XRD, SEM and EDX analysis were accomplished to confirm the successful synthesis of the nano-composite hydrogel samples. Additionally, to investigate the effect of clinoptilolite content on water uptake properties and gel characteristics of the synthesized nano-composite hydrogel samples, water absorption kinetics studies and rheological evaluations were carried out. It is obtained that, there is an optimum amount for additive content which can improve the hydrogel properties. Results showed that nano-composite hydrogel sample with 5% W/W of clinoptilolite with respect to the gelatin amount has the best efficiency from the point of view of the water absorption properties and gel characteristics. This phenomenon is related to the creation of physical cross linking in the hydrogels’ structure which leads to the creation of porous hydrogels.
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