On the effect of Benzethonium intercalation process: Structural and dielectric properties of exchanged montmorillonite

Plasticizing Properties Improvement of Poly (4-Vinylpyridine)/Clay Composites: Effect of Composition and Clay Nature

“…The bentonite is the most smectite clay commonly used due to its high permeability, high surface area, swelling behavior, adsorption, and high cation exchange capacity (CEC) [4]. Mt is used in various applications such as hydrogeology, civil engineering, petroleum engineering, environmental sciences and biological applications and catalysis [5]. This clay is 2:1 type of alumino-silicate with a crystalline structure presenting an alumina octahedral sandwiched between two tetrahedral layers of silica [5,6].…”

“…Mt is used in various applications such as hydrogeology, civil engineering, petroleum engineering, environmental sciences and biological applications and catalysis [5]. This clay is 2:1 type of alumino-silicate with a crystalline structure presenting an alumina octahedral sandwiched between two tetrahedral layers of silica [5,6]. Because of the isomorphous substitution of Al3?…”

“…in the tetrahedral layer and Mg for Al in the octahedral layer, the negative surface charge on the clay is compensated by exchangeable cations Na, Ca, K…etc. [5]. The intercalation of exchangeable cations in the layers space with different organic molecules, particularly soluble polymers, yields the so-called polymer-clay nanocomposites.…”

“…These materials exhibit a very remarkably enhanced mechanical and barrier properties combined with a good thermal and chemical stability [5][6][7][8]. Bentonite clays are largely used in many industrial products such as ceramics, paintings, coatings, drilling mud, etc...…”