We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Electrochemical Impedance Spectroscopy as a Tool in the Plate Making Process Optimization.
- Authors
Cigula, Tomislav; Fuchs.-Godec, Regina; Gojo, Miroslav; Slemnik, Mojca
- Abstract
The structure of the porous aluminium-oxide layer, which builds non-image areas, has the most significant influence on the quality of final graphical product. This paper presents the results of the application of EIS in the characterisation and detection of changes on the aluminium-oxide layer caused by chemical processing in highly alkaline solution. The Al2O3 layer was characterised using SEM, fractal dimension and surface free energy calculation and EIS analysis. The results of the investigation showed that chemical processing has a significant influence on the structure of aluminiumoxide which could lead to a decrease in the quality of the printing plate. EIS enables the detection of changes on the aluminium- oxide layer. The two equivalent circuits are proposed. Based on modelling with the obtained EIS spectra, precise evaluation of developing time in which complete removal of the photoactive layer is achieved. This makes EIS a powerful tool in optimizing chemical processing of lithographic printing plates.
- Subjects
ELECTROCHEMICAL analysis; IMPEDANCE spectroscopy; PROCESS optimization; MOLECULAR structure; POROUS materials; ALUMINUM oxide; CHEMICAL processes
- Publication
Acta Chimica Slovenica, 2012, Vol 59, Issue 3, p513
- ISSN
1318-0207
- Publication type
Article