Superhydrophobic coating with multiscale structures
To obtain a superhydrophobic surface with hierarchical micro/nanostructures, two kinds of SiO2 nanoparticles with different sizes were embedded into crosslinked silanised polyacrylate. The developed coatings showed three outstanding characteristics.
Silanised polyacrylate (PSA) was synthesised via free radical copolymerisation of acrylate monomers and vinyltrimethoxysilane (VTMS). Then, the silicone methoxyls of the VTMS units were crosslinked by a condensation reaction with hydroxy terminated polydimethylsiloxane (HTPDMS) to form crosslinked silanised polyacrylate (CPSA).
High corrosion resistance
The surface wetting property, surface morphology, mechanical robustness and anticorrosion performance of the CPSA/SiO2 coatings were systematically studied. The results demonstrated that the coatings could be expediently sprayed onto substrates to create a water-repellent surface, and possessed good mechanical robustness and high corrosion resistance against NaCl solutions.
The study is published in: Surface and Coatings Technology, Volume 331, 15 December 2017.
Event Tip
On December 6 the European Coatings Seminar Functional Coatings offers the opportunity learn all relevant basics to start working on this fascinating topic.
