NANOSTRUCTURED POLYMERIC MATERIAL FOR CORROSION PROTECTION OF MILD STEEL
 Sitashree Banerjee¹ Varsha Srivastava¹, M.M. Singh<sup>1

1</sup>Department of Applied Chemistry, Institute of Technology, Banaras Hindu University,   Varanasi 221 005, India   Email:   siachembhu@gmail.com

The present study deals with the comparison of pure polymer and nanocomposite thin film coating towards corrosion of mild steel in 1 N H₂SO₄. Clay nanoparticles were incorporated in the vinylidene polymer and thus obtained polymeric nanocomposite were coated on the mild steel coupons by dipping method, at different thickness. Potentiodynamic polarization tests were conducted on the prepared samples using 1 N H₂SO_4. The test results showed that the mild steel coupons coated by polyvinylidene fluoride and nanoclay top coating resulted in excellent corrosion resistance. Almost cent percent corrosion resistance has been achieved with a combination of 0.5% PVDF and 10% clay w.r.t polymer and also 10% PVDF with 5% clay. The former combination is much more economical and may prove to be of much importance in practical usage. The presence of clay improves barrier properties by increasing its adherence and blocking the pin-holes in the PVDF film.