Influence of aspect ratio on barrier properties of polymer-clay nanocomposites.

Abstract

The barrier properties of polymer-clay nanocomposites, with far less inorganic contents of layered-silicate fillers, are remarkably superior to those of neat polymers or their conventional counterparts. A simple renormalization group model is proposed to assess the influence of geometric factors (such as aspect ratio, orientation, and extent of exfoliation) of layered-silicate fillers on the barrier properties of polymer-clay nanocomposites. The results show that the aspect ratio of exfoliated silicate platelets has a critical role in controlling the microstructure of polymer-clay nanocomposites and their barrier properties. The estimated percolation thresholds of clay content for minimum permeability are in good agreement with experimental data.

Cite this paper

@article{Lu2005InfluenceOA, title={Influence of aspect ratio on barrier properties of polymer-clay nanocomposites.}, author={Chunsheng Lu and Yiu-Wing Mai}, journal={Physical review letters}, year={2005}, volume={95 8}, pages={088303} }