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Anisotropic dispersion promoting and passivation protecting on epoxy anticorrosive coatings
2024-07-18 08:41
Researchers found that the addition of cardanol-modified Janus nanosheets with Zn2+ to epoxy anti-corrosion coatings significantly improves their mechanical properties and corrosion resistance
Defects in the curing process of epoxy coatings tend to deteriorate the anticorrosion performance of the coatings. An important way to enhance the anticorrosion performance of epoxy coatings is to add flaky fillers. In this paper, anisotropic Janus nanosheets (JNs) were prepared and modified by cardanol (CA) and Zn2+. Then, the obtained CA@JNs@Zn2+ Janus composite nanosheets were introduced into epoxy coatings. When the content of CA@JNs@Zn2+ is 0.2 %, the mechanical properties and corrosion resistance of the coating were effectively improved.
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