Protective electric insulation coatings based on cationic-curing epoxypolyurethane compositions

New hybrid polymatrix epoxy-polyurethane compositions have been synthesized by simultaneously using two binders of different natures — diane epoxy resin and polyurethane quasi-prepolymer Gekkon-P100 based on aromatic isocyanates, and using a cationic hardener — a boron trifluoride-ether complex mixed with trichloropropyl phosphate and diethylene glycol. The results of a study of the physico-mechanical and electrophysical properties of the obtained coatings, both cold and hot curing, depending on the ratio of the epoxy and polyurethane components and the amount of hardener are presented.

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