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Anticorrosive protection system based on nanocomposites
Autori: Ionel Balcu, Adina-Elena Segneanu, Marius Constantin Mirica, Mirela Ioana Iorga, Corina Amalia Macarie, Iuliana Popa
Data aparitiei: July/August 2009
Revista: Environmental Engineering and Management JournalVol. 8Nr. 4
ISSN: 1843 - 3707
Pret: Gratuit    
Format PDF Format PDF
Abstract Corrosion control, using inhibitors like, polymerisable porphyrins and multifunctional nanocomposites, is extremely useful in many environments. Phosphogypsum is a waste product resulted from the process of obtaining the phosphoric acid and it can be also used as corrosion inhibitor; in a mixture with other coating materials. Two types of modified porphyrin: Na4TFP Ac - dissolved in KOH and H2SO4 and H2TPP - dissolved in benzonitrile, were tested. The structure characterization of phosphogypsum was analyzed through SEM and X-ray diffraction. The efficiency of the complex multifunctional system was investigated in the salt spray chamber, using diverse exposure conditions. The corrosion resistance was studied by cyclic voltammetry, in 20% Na2SO4 electrolyte solution. The multifunctional nanocomposites used as coating systems improve the anti-corrosion properties of electrodes.


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