In Situ Growth of Nanoporous Covalent Organic Frameworks on Metal-Organic Framework Surfaces for Epoxy Coating Applications

The Cu-MOF's susceptibility to easy hydrolysis impairs its utility. A one-pot method was used to encapsulate nanoporous hydrophobic Im-COF on the surface of Cu-MOF. The hybrid Cu-MOF@Im-COF exhibited a water contact angle (WCA) of 100.9 degrees. Cu-MOF/G@Im-COF was obtained by a grooming process (G) with 1H,1H,2H,2H-perfluorooctanetriethoxysilane and integrated with epoxy resin (E51) in two ways. The Cu2+ release rate from the coatings, as determined by atomic absorption spectroscopy tests, was reduced to 0.01037 mu g<middle dot>cm(-2)<middle dot>d(-1). In antimicrobial experiments with E. coli, the killing time was extended for 12 h. The Bode value increased to 1.4 x 10(10) Omega when immersed in a 3.5% NaCl solution for comparison. The self-cleaning and anti-icing test performance of the coatings was significantly improved with increasing WCA. Cu-MOF/G@Im-COF will have an even greater impact in more areas than just antimicrobial and corrosion resistance.