Northampton Electronic Collection of Theses and Research

Mechanism of ionic conduction in multi-layer polymeric films studied via electrochemical measurement and theoretical modelling

Jamali, S. S., Suesse, T., Jamali, S., Mills, D. J. and Zhao, Y. (2017) Mechanism of ionic conduction in multi-layer polymeric films studied via electrochemical measurement and theoretical modelling. Progress in Organic Coatings. 108, pp. 68-74. 0300-9440.

[A][B][+][-]
11901:25162
[thumbnail of Jamali_etal_SD_2017_Mechanism_of_ionic_conduction_in_multi_layer_polymeric_films_studied_via_electrochemical_measurement_and_theoretical_modelling]
Jamali_etal_SD_2017_Mechanism_of_ionic_conduction_in_multi_layer_polymeric_films_studied_via_electrochemical_measurement_and_theoretical_modelling
Jamali_etal_SD_2017_Mechanism_of_ionic_conduction_in_multi_layer_polymeric_films_studied_via_electrochemical_measurement_and_theoretical_modelling.pdf - Accepted Version
Information
Abstract:
Ionically permeable domains in polymeric protective coatings have been investigated empirically and theoretically. In the first part of the paper, results from recent experiments both complement and show agreement with received knowledge. This has allowed a physical model to be proposed for the mechanism of ionic conduction in polymeric coatings. This model assumes the random scattering of small regions with very different physical and chemical properties, akin almost to separate phase. Particularly the much higher rate of conduction is likely to have an impact on the coating's anti-corrosion ability. Based on the superimposition of permeable and impermeable domains, the model can be applied to allow comparison of multi-layer systems with single coat films of the same thickness. Such a statistical model has practical corollaries and in the second part of the paper statistical methods are advanced to allow determination of the probability of having these permeable domains in two, three, four and more coats. This has been further refined by a virtual simulation process using the distribution of permeable domains on a two dimensional plane. The significance of the theoretical models is then discussed with respect to the experimental data and what they mean in terms of protective ability.
Uncontrolled Keywords:
Electrochemical inhomogeneity, Ionic conduction, Polymeric film, Protective coating, Theoretical modelling
Creators:
Jamali, S. S., Suesse, T., Jamali, S., Mills, D. J. and Zhao, Y.
Faculties, Divisions and Institutes:
Faculties > Faculty of Arts, Science & Technology > Engineering
Date:
1 July 2017
Date Type:
Publication
Page Range:
pp. 68-74
Journal or Publication Title:
Progress in Organic Coatings
Volume:
108
Number of Pages:
7
Language:
English
DOI:
10.1016/j.porgcoat.2017.04.013
ISSN:
0300-9440
Status:
Published / Disseminated
Refereed:
Yes
Related URLs:
Edit Item