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Novel surfactant-free waterborne acrylic-silicone modified alkyd hybrid resin coatings containing nano-silica for the corrosion protection of carbon steel |
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| Authors: | Shenjie Zhong Jiawei Li Ying Cai |
| Affiliation: | 1. Institute of Advanced Functional Coatings, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou, P. R. China;2. Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, P. R. China;3. Engineering Research Center for Eco-Dyeing &4. Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, P. R. China |
| Abstract: | We report a novel waterborne acrylic-silicone modified alkyd nanocomposite latex containing nano-silica prepared by the surfactant-free miniemulsion polymerization. The influences of γ-methacryloxy-propyltrimethoxysilane- (MPS-) modified nano-silica particle contents to the thermal, mechanical and anti-corrosion performance of hybrid latex coatings were studied. The results revealed that the incorporation of nano-silica particles into latex films could directly increase the thermal stability and mechanical properties. Electrochemical corrosion studies revealed that these nanocomposite coatings exhibited superior corrosion resistance performance (inhibition efficiency 99.36% and corrosion rate 1.09 × 10 ?3 mm per year) than that of the control system (without SiO2 NPs). |
| Keywords: | SiO2 nanoparticles alkyd hybrid latex coating corrosion electrochemical impedance spectroscopy (EIS) |