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Electrophoretic deposition and characterization of chitosan-molybdenum composite coatings
- Source :
- Carbohydrate polymers. 255
- Publication Year :
- 2020
-
Abstract
- In this paper, the effect of the electric field on the properties of a new chitosan-molybdenum (Chit-Mo) composite coating obtained by electrophoretic deposition (EPD) was investigated. The composite coatings obtained showed different morphologies depending on the conditions used during the deposition process. Chemical composition results and microstructure analysis showed homogeneous distribution of molybdenum in a chitosan matrix. Corrosion test results showed that the Chit-Mo composite coatings can increase corrosion resistance of 1020 steel in NaCl medium (3.5 %). The coatings obtained at 5 V, pH 5.5, and using a low concentration of reagents (suspension 1: chitosan 0.5 g/L and 1 mM sodium molybdate) reached an inhibition efficiency of up to 76.7 %. Therefore, the results obtained in this work prove the achievement of a new class of chitosan-based composite materials with potential application in the protection of metal structures against corrosion.
- Subjects :
- Materials science
Polymers and Plastics
Sodium molybdate
Organic Chemistry
Composite number
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Microstructure
01 natural sciences
Homogeneous distribution
0104 chemical sciences
Corrosion
Chitosan
chemistry.chemical_compound
Electrophoretic deposition
chemistry
Chemical engineering
Molybdenum
Materials Chemistry
0210 nano-technology
Subjects
Details
- ISSN :
- 18791344
- Volume :
- 255
- Database :
- OpenAIRE
- Journal :
- Carbohydrate polymers
- Accession number :
- edsair.doi.dedup.....9749120af0f42f5c1daa96a82c75a70f