Prepration and characterization of Bentonite-Melamine and Bentonite-Bentonite-Melamineformaldehydepolymer complexes and study the physical molecular interactions of these systems. cbej [Internet]. 2023 Jan. 14 [cited 2025 Apr. 20];18(76):183-92. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/9476