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Silane coupling agent modified layered double hydroxide/graphene oxide preparation of intelligent anticorrosive coating.
- Source :
-
Surface & Coatings Technology . Aug2023, Vol. 467, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Common coatings have unsatisfactory long-term anticorrosion performance due to poor barrier property. In this work, LDH-MoO 4 2− nano-filler (KGO@LM) modified by KH-570 and GO was prepared to improve the long-term corrosion resistance of epoxy resin (EP) coating. The filler integrates the three functions of barrier, chloride ion trapping and self-repair, and has good dispersion and compatibility in EP. After soaking in 3.5 wt% NaCl solution for 28 days, the low-frequency impedance of KGO@LM coating was still as high as 1.02 × 108 Ω·cm2, while the remaining value of EP coating was only 2.63 × 106 Ω cm2,so the addition of KGO@LM filler significantly improved the anticorrosive effect of EP coating. After soaking in 3.5 wt% NaCl solution for 18 h, the low-frequency impedance of the scratched KGO@LM/EP coating was 1.5 orders of magnitude higher than that of the EP coating, which proved that the designed filler had a significant corrosion inhibiting effect. Therefore, it is believed that this work can provide some inspirations for other researchers to develop long-term anticorrosion coatings. [Display omitted] • The prepared filler effectively improves the dispersion and compatibility in epoxy resin. • The packing set barrier, chloride ion capture and self-repair three functions in one. • The coating with the filler has long-term anticorrosion effect. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02578972
- Volume :
- 467
- Database :
- Academic Search Index
- Journal :
- Surface & Coatings Technology
- Publication Type :
- Academic Journal
- Accession number :
- 164857598
- Full Text :
- https://doi.org/10.1016/j.surfcoat.2023.129728