期刊
PROGRESS IN ORGANIC COATINGS
卷 77, 期 6, 页码 1095-1103出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2014.03.019
关键词
Epoxy; PANI; Self-healing; FTIR; SVET; Corrosion
资金
- CSIR, New Delhi through the network project Intelcoat [CSC0114]
Polyaniline (PANI) was synthesized by chemical oxidative polymerization of aniline dissolved in aqueous phosphoric acid. The polymer was characterized by UV-Visible spectroscopy (UV-Vis), thermal gravimetric analysis (TGA) and Fourier transform infrared spectroscopic (FTIR) techniques. Hardener free epoxy coating was formulated with 10% PANI. The curing process of epoxy resin by PANI was analyzed using FTIR and a suitable mechanism of curing was suggested. The corrosion protective performance of conventional polyamide cured epoxy and PANI cured epoxy coating on steel has been assessed in 3% NaCl by electrochemical impedance spectroscopy (EIS). The self-healing property of the PANI cured epoxy coating on steel in 3% NaCl was studied by scanning vibrating electrode technique (SVET). (C) 2014 Elsevier B.V. All rights reserved.
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