Journal
SURFACE & COATINGS TECHNOLOGY
Volume 317, Issue -, Pages 134-147Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2017.03.004
Keywords
Anti-corrosion performance; Edge protection; Rheology; Electrodeposition; Silica nanoparticles
Funding
- Center of Excellence for Color Science and Technology
Ask authors/readers for more resources
The present study develops a method for edge coverage improvement of the cathodic electrocoatings by silica nanoparticles. The effect of silica nanoparticles on the rheology of curing process, anti-corrosion performance, edge protection, and morphology are studied. Field emission scanning electron microscopy (FE-SEM) is utilized to investigate the dispersion of nanoparticles in the coating matrix. The anti-corrosion performance is studied by electrochemical impedance spectroscopy (EIS) and salt spray tests. Rheometric mechanical spectrometer (RMS) and dynamic mechanical thermal analysis (DMTA) are used to investigate the rheology of the curing process and curing behavior of the coatings respectively. Minimum melt viscosity has increased significantly in the presence of the 4 wt% nanoparticles. Results show significant improvement of edge coverage in presence of the 4 wt% nanoparticles. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available