Recent developments in clay- polymer nano composites

The present review deals with recent developments on synthesis and characterization of polymer nanocomposites (PNCs) derived from organo clay (OCL) with selected thermosetting and thermoplastic polymers of industrial relevance. To compatibilize with polymer matrix, clays are modified with organophilic functionalities. The clays modified in this way are known as organoclay (OCL). The most popular methods for clay modification are executed through their cation exchange with quaternary ammonium salts bearing alkyl, vinyl, imidazolium, tallow alkyl functionalities. Crown ethers alkylsilanes, and zwitterions are also reported as clay modifiers for development of PNCs. As an alternative strategy, functionalized polymer matrixes are developed for compatibilization with clays to produce high performance PNCs. This strategy although is under developing stage , grants potential expectations towards development of PNCs from both class of polymer matrix with improved mechanical, thermal, flame retardant and barrier applications

Keywords:

Polymer nanocomposites , Organo clay , Thermoplastic polymers , Nano composites