SIALON NANOPARTICLES EFFECT ON THE CORROSION AND CHEMICAL RESISTANCE OF EPOXY COATING

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SABAGH SAMIRE; BAHRAMIAN AHMAD REZA; KOKABI MEHRDAD

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Journal: IRANIAN POLYMER JOURNAL Year:2012 | Volume:21 | Issue:12 Page(s): 837-844

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Title

SIALON NANOPARTICLES EFFECT ON THE CORROSION AND CHEMICAL RESISTANCE OF EPOXY COATING

Author(s)

SABAGH SAMIRE | BAHRAMIAN AHMAD REZA | KOKABI MEHRDAD

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Abstract

Effect of incorporating SiAlON nanoparticles at different loading levels (0–12 wt%) on chemical resistance of epoxy coating was investigated by immersion in basic (Na2CO3، pH=11) and salty (NaCl 3.5 wt%) (environments at 85 °C for 60 days. Epoxy resin chemical resistant coating grade based on bisphenol A was used with polyamine hardener as a curing agent. In these testes، surface morphology changes of the samples were studied and compared owing to initiation and propagation of cracks. Results indicate an enhancement in the epoxy nano composite chemical resistance due to the addition of small fraction of SiAlON nanoparticles. Samples containing 3 and 5 wt% of SiAlON nano powders were considered as optimum samples compared to all the other samples، because they showed more resistances to initiation and propagation of cracks and lower permeability in chemical environment in comparison with neat resin and other samples. Also، epoxy coatings containing SiAlON nanoparticles were successfully coated on steel substrates and corrosion electrochemical behavior of these nano composite coatings were characterized by electrochemical impedance spectroscopy (EIS). The electrochemical monitoring of the coated steel over 35 days of immersion in 3.5 wt% NaCl solution at room temperature suggested the positive role of nanoparticles in improving the corrosion resistance of the coated steel.

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APA: Copy

SABAGH, SAMIRE, BAHRAMIAN, AHMAD REZA, & KOKABI, MEHRDAD. (2012). SIALON NANOPARTICLES EFFECT ON THE CORROSION AND CHEMICAL RESISTANCE OF EPOXY COATING. IRANIAN POLYMER JOURNAL (ENGLISH), 21(12), 837-844. SID. https://sid.ir/paper/636225/en

Vancouver: Copy

SABAGH SAMIRE, BAHRAMIAN AHMAD REZA, KOKABI MEHRDAD. SIALON NANOPARTICLES EFFECT ON THE CORROSION AND CHEMICAL RESISTANCE OF EPOXY COATING. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2012;21(12):837-844. Available from: https://sid.ir/paper/636225/en

IEEE: Copy

SAMIRE SABAGH, AHMAD REZA BAHRAMIAN, and MEHRDAD KOKABI, “SIALON NANOPARTICLES EFFECT ON THE CORROSION AND CHEMICAL RESISTANCE OF EPOXY COATING,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 21, no. 12, pp. 837–844, 2012, [Online]. Available: https://sid.ir/paper/636225/en

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