International. In a current work in which Russian scientists participated, porous films based on epoxy resin have been obtained through the Breath Figures method.
It was demonstrated that the use of a low-temperature curing agent and a fluorine-containing organosilicon copolymer, compatible with epoxy resin, makes it possible to obtain porous, thermostable and highly hydrophobic coatings with a pore diameter of 3-4 μm. When the epoxy resin/copolymer mixture is homogeneous, the modifier prevents the coalescence of water droplets; otherwise, the mixture becomes heterogeneous and the positive influence of the modifier is lost.
Potential for the manufacture of paint coatings: the modified porous films obtained are highly hydrophobic and maintain their porous structure until the devitrification of the polymer occurs. The simplicity of the Breath Figures method shows great potential for the manufacture of epoxy resin-based water-repellent paint coatings for use in a variety of applications.
Source: Journal of Coatings Technology and Research.
