Synthesis, characterization and fabrication of TiO2-polyurethane cocopol blend nanocomposites for anti- corrosion coatings on mild steel
Archie G. Ruda(a,b*), Marjune T. Bonilla(a,b), Kurt Sterling M Ubas(a,b), Aaron Andrew B. Mutia(a,b), Lloyd Allan T. Cabanog(a,b), Dave Joseph E. Estrada(c), Rey Y Capampamangan(d), Rey Marc T. Cumba(d), Joselito Labis(e), Arnold C. Alguno(a,b)

a)Department of Physics, College of Science and Mathematics, MSU- Iligan Institute of Technology, Iligan City, 9200 Lanao del Norte, Philippines
b)Premier Research of Science and Mathematics (PRISM), MSU- Iligan Institute of Technology, Iligan City, 9200 Lanao del Norte, Philippines
*archie.ruda[at]g.msuiit.edu.ph
c)Bioproducts Research Laboratory (BPRL), College of Engineering and Technology, MSU- Iligan Institute of Technology, Iligan City, 9200 Lanao del Norte, Philippines
d)Department of Physical Sciences and Mathematics, College of Science and Environment, Mindanao State University- Naawan Campus, 9023 Naawan Misamis Oriental, Philippines
e)King Abdullah Institute of Nanotechnology, Riyadh 11451, Saudi Arabia

Abstract

TiO2 nanoparticles was synthesized using titanium butoxide as a precursor. The obtained nanoparticles were used as an inhibitor mixed with coconut oil-based polyurethane polyol blend against the corrosion on mild steel of 3.5% of sodium chloride solution which has been investigated using Tafel polarization technique. FTIR spectra of TiO2 reveal a Ti-O bond corresponding to 387.69cm-1. An average size of 347.3nm in size shown in the TEM images. DLS also confirms with a size distribution peak at 347nm. Polarization curves of PU CCP blend alone and with varied amount of TiO2 nanoparticles coating shows positive results. An increase in amount of TiO2 nanoparticles also increases the in the corrosion potential which implies a decrease in the corrosion current density.

Keywords: titanium dioxide, polyurethane- cocopol- corrosion current density- corrosion potential

Topic: Material and Applied Chemistry