2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 8: Surfaces and Interfaces(SISAM), Composite, Ceramic and Nanomaterials
| Editors: | Kongoli F, Braems I, Demange V, Dubois JM, Pech-Canul M, Patino CL, Fumio O |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 249 pages |
| ISBN: | 978-1-987820-75-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Smart Core-shell Nanocontainers with Kaolinite For Improved Corrosion Protection of Zinc Coating on Steel
Kamelia Kamburova1; Neli Boshkova1; Nikolai Boshkov1; Tsetska Radeva1;1INSTITUTE OF PHYSICAL CHEMISTRY, BULGARIAN ACADEMY OF SCIENCES, Sofia, Bulgaria;
Type of Paper: Regular
Id Paper: 230
Topic: 18
Abstract:
Core-shell nanocontainers (NCs) with corrosion inhibitor benzotriazole (BTA) are prepared using layer-by-layer assembly of poly(diallyldimethyl ammonium chloride) (PDADMAC) and poly(acrylic acid) (PAA) on kaolinite nanoparticles. Entrapment of BTA into the polyelectrolyte shell is realized in the assembly step. Electric light scattering method and electrophoresis are used for characterization the electrical properties of the NCs and for determination of their size during the assembly procedure. The BTA loaded NCs are incorporated into the matrix of a zinc coating during electrodeposition process on low carbon steel surface. The distribution of the NCs in the hybrid zinc coating and the almost complete lack of aggregation during the electrodeposition process are demonstrated by scanning electron microscopy (SEM). The influence of the NCs on the cathodic deposition process and on the anodic dissolution processes is checked with cyclic voltammetry (CVA). The protective properties of the composite coatings are characterized by selected test methods like Potentiodynamic polarization (PDP) and Electrochemical Impedance Spectroscopy (EIS). Additionally, X-ray diffraction (XRD) is applied in order to establish the influence of NCs on the metallographic structure of the electrodeposited coating.
Keywords:
Clay; Coatings; Materials; Metal; Nanocomposites;References:
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