Polymer-clay nanocomposites (PCN) are the most important nanomaterials of the current
decade with wide range of applications. Montmorillonite, vermiculite, sepiolite, laponite, bentonite and
attapulgite are the main classes of clay used as reinforcement in polymer nanocomposites. Clay nanocomposites
show characteristic features of thermal stability, flame retardancy, barrier and anticorrosive
properties. This work comprehensively review current developments and applications of polymer-clay
nanocomposites in automotive, sporting goods, coating technology, packaging, insulation, building construction,
electrochemical, biomedical and environmental. This work also aims to describe the importance
of polymer clay nanocomposites in various fields, especially for environmental applications.
Polymer clay based nanocomposites also have the potential to decontaminate and remediate aqueous
systems, therefore purification and remediation of contaminated soil and air with the help of clay based
nanocomposites have also been discussed.