Water-based coatings in recent years rapidly replacing paints on organic solvents. The only area where, so far beyond the competition are solvent-based materials, is to protect metals from corrosion. Skepticism of experts to protect against corrosion on the anticorrosive properties of aqueous coatings, though diminished by some success in the area of protecting metals from corrosion by water-based coatings in atmospheric conditions, but still not cleared especially for corrosion protection of responsible products, respectively. The report attempts to review the current state of the problem anticorrosive properties of coatings from water-based materials in terms of modern physico-chemical concepts on the functioning of protective coatings and electrochemical measurements on these coatings formed from typical water-based materials, and ways to further improve the anticorrosive properties of coatings based on aqueous materials. On the basis of electrochemical measurements (electrical resistance, capacitance, electrode potential , the corrosion current) systems with different types of coatings showed that water paints with different nature of film-forming can be divided into two groups. Coatings of the first group - coatings based on dispersed film-forming agents - have very low electrical resistance, higher capacity, the potential of near-cue to the potential of the metal and sufficiently high currents of corrosion. Coating of the second group - on the basis of film-forming emulsion of different nature - have a fairly high resistance (tens of kilohms), low capacity, a more positive potential (rather than the protected metal) and small currents of corrosion and they also show some diffusion resistance. The hypothesis that the observed difference is due mainly to the character of pores (cross-cutting and closed) and the concentration of pores formed in the coatings based on dispersed and emulsion film-forming agents. The data show promising directions for further efforts on the emulsion and water-soluble paints. They also show that in the study and development of low-resistivity water materials can be successfully used the method of chronopotentiometry. It is conjectured that it was the second group of coatings to enhance their electrochemical resistance can be successfully applied methods are widely used in anticorrosion practice (inhibition, sacrificial anode and passivating effect).
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