1. Effect of nano-sized mesoporous silica MCM-41 and MMT on corrosion properties of epoxy coating
- Author
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Wang, Na, Cheng, Keqi, Wu, Hang, Wang, Cheng, Wang, Qunchang, and Wang, Fuhui
- Subjects
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MESOPOROUS materials , *NANOSTRUCTURED materials , *SILICA , *EPOXY coatings , *CORROSION resistant materials , *POLYMERS , *EPOXY resins , *IMPEDANCE spectroscopy - Abstract
Abstract: This study investigated the effect of co-incorporation of two different kinds of nano materials with different forms, layers (Na-MMT) and mesoporous silica particles (MCM-41), into the polymer matrix on the corrosion performance of epoxy resin. Correspondingly corrosion performance of the coatings was studied by electrochemical impedance spectroscopy (EIS) in 3.5% NaCl aqueous solution and salt spray test. The X-ray diffraction (XRD) measurement showed that the Na-MMT layers were exfoliated and the hexagonal framework structure of MCM-41 was retained during and after the composite preparation. The co-incorporation of Na-montmorillonite (Na-MMT) and MCM-41 into the epoxy coating possessed the best corrosion resistance than incorporating either Na-MMT or MCM-41 particles separately due to different interfacial structures between the fillers and the matrix. [Copyright &y& Elsevier]
- Published
- 2012
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