Effect of Nanoalumina on the Electrochemical and Mechanical Properties of Waterborne Polyurethane Composite Coatings
Joint Authors
Dhoke, Shailesh K.
Khanna, A. S.
Rajgopalan, Narayani
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-05-20
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Abstract EN
A nanocomposite coating was formed by incorporating nanoalumina pigment in a waterborne polyurethane dispersion (WPUD) to different loading levels (0.1% and 1.0% by weight).
Electrochemical performance of the nanocomposite coating was evaluated by applying these nanomodified coatings on mild steel substrate and exposing them to salt-spray, humidity, and accelerated UV weathering.
The surface morphology of the composite coating was evaluated using various analytical techniques.
SEM and AFM were used to investigate the dispersion of nanoalumina pigment and surface morphological changes of the nanomodified coating, before and after exposure to the test environment.
Mechanical properties like scratch resistance were studied by using nanoscratch technique (Nanoindenter TI-900, Hysitron Inc, USA) and hardness using pencil hardness test method.
The results showed an improvement in the corrosion, UV weathering, and mechanical properties of the coatings at lower concentration (0.1% by wt), indicating the positive effect of addition of nanoalumina pigment to the coating.
American Psychological Association (APA)
Dhoke, Shailesh K.& Rajgopalan, Narayani& Khanna, A. S.. 2013. Effect of Nanoalumina on the Electrochemical and Mechanical Properties of Waterborne Polyurethane Composite Coatings. Journal of Nanoparticles،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-478796
Modern Language Association (MLA)
Dhoke, Shailesh K.…[et al.]. Effect of Nanoalumina on the Electrochemical and Mechanical Properties of Waterborne Polyurethane Composite Coatings. Journal of Nanoparticles No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-478796
American Medical Association (AMA)
Dhoke, Shailesh K.& Rajgopalan, Narayani& Khanna, A. S.. Effect of Nanoalumina on the Electrochemical and Mechanical Properties of Waterborne Polyurethane Composite Coatings. Journal of Nanoparticles. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-478796
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-478796