Abstract:
Corrosion cause severe damage and loss to industrial pipelines and equipment and
reduces its life and serviceability. It causes catastrophic failures and leads to huge loss in
terms of economical and human life. This Research work is focused on the scope of
nanocomposites in the protection of these industrial pipelines and equipment and to
contribute in future study of corrosion protection in industrial sector. Experimentation and
analysis are conducted on the metal substrates of cast iron obtained from industrial
pipeline sample. Comparative study of anti-corrosive properties of hybrid polymer
composite SAN/PANI/FLG and ceramic nanocomposite ZnO/GO was conducted on cast
iron samples under the corrosive environments of sea water and produced water of crude
oil. Electrochemical Impedance Spectroscopy was used for comparative study of
nanocomposite coated samples to evaluate the performance of nanocomposites. Values of
Impedance and coating capacitance obtained from EIS (AC technique) has shown
excellent protection properties of nanocomposites coating in highly corrosive
environments. While the Tafel scan (DC technique) was used to determine the corrosion
rate of nanocomposite coating and the result obtained were satisfactory for the protection
of bare metal samples from corrosion up to certain extent before it gets affected by
corrosive medium and gets damaged. Surface morphology of samples were studied by
using SEM.SAN/PANI/FLG has offered higher degree of corrosion protection in the
environments of sea water and produced water of crude oil as compare to ZnO/GO.
