A comparative investigation of Rheological behavior between Humate/Clay/Polyacrylamide Hybrid Hydrogels.

The Hybrid hydrogels were created for improving the properties of hydrogels and reduce the price of them,so in the past decade many researchers have addressed this topic. in this investigation the hybrid hydrogels made from Acrylamide (AM) as monomer, Ammonium Per Sulfate (APS) as the initiator and N,N -Methylene Bis Acrylamide (MBA) as the cross-linker, also sodium (SH) and Potassium Humate (PH) as functional filler and two types of clay (Bentonite (CB) and Kaolinite (CK) ) as improving filler that formed in a four neck vessel which equipped with a stirrer, condenser, thermometer, and nitrogen line. Different clay types and compatibility of them with humate component was investigated by rheology RMS test (oscillatingdisk rheometer). The result showed that storage modulus was increased by enhancing clay into gels and behaviour was more solid like at presence of clay as well as better adaptability to sample contain PH and CB have seen.