In this work, nano-SiO2 have been used as nanocarriers for loading Ce(III) ions (SiO2@Ce3+). After loading, silane coupling agent has been used to modify these nanocarriers (m-SiO2@Ce3+). Then, these modified nanocarriers were added as green inhibitors into the inner epoxy coating matrix, which was based on the epoxy resin (DER 671X75) and hardener (polyamide Epicure 3125). Morphological study by FE-SEM showed that the spherical nanoparticles (mSiO2@Ce3+) were in size | Cite this paper Vietnam J. Chem. 2023 61 S3 109-115 Research Article DOI Effect of silane-modified SiO2@Ce3 nanoparticles on the mechanical property and anti-corrosion for steel of the epoxy coating Nguyen The Huu1 Dam Thi Tam1 2 Do Truc Vy3 Nguyen Tuan Anh3 Le Trong Lu3 Tran Dai Lam3 Nguyen Thien Vuong3 1 Faculty of Chemical Technology Hanoi University of Industry 296 Cau Dien Minh Khai Bac Tu Liem Hanoi 10000 Viet Nam 2 Hanoi Irradiation Center Vietnam Atomic Energy Institute 2PXV 473 Highway 32 Minh Khai Bac Tu Liem Hanoi 10000 Viet Nam 3 Institute for Tropical Technology VAST 18 Hoang Quoc Viet Cau Giay Hanoi 10000 Viet Nam Submitted February 18 2023 Revised June 20 2023 Accepted July 20 2023 Abstract In this work nano-SiO2 have been used as nanocarriers for loading Ce III ions SiO2@Ce3 . After loading silane coupling agent has been used to modify these nanocarriers m-SiO2@Ce3 . Then these modified nanocarriers were added as green inhibitors into the inner epoxy coating matrix which was based on the epoxy resin DER 671X75 and hardener polyamide Epicure 3125 . Morphological study by FE-SEM showed that the spherical nanoparticles m- SiO2@Ce3 were in size lt 100 nm and dispersed rather homogeneously into the polyme matrix. In addition the addition of nanocarriers at a concentration of wt. into the epoxy polymer matrix enhanced significantly its mechanical property. Besides the anticorrosion performance of the epoxy polymer matrix due to the presence of m- SiO2@Ce3 at wt. was proved by EIS analysis and salt spray tests. Keywords. Nano-SiO2 Ce3 silane epoxy corrosion. 1. INTRODUCTION boosted the adhesion water adsorption blistering performance and substrate protection of waterborne Epoxy coating has been widely to protect metals epoxy coatings. againt corrosion due to good processability low Recently researchers are focusing on the smart production cost high chemical resistance good organic coatings for anticorrosion with smart .
