MODIFIED ANTICORROSION POLYMER COMPOSITION

We studied modification process of the composition, which consists of oligomer of polystyrene resin and oil polymer resin “SPP” of modifier atactic polypropylene “APP”. Experimental investigations have shown that with the introduction of atactic polypropylene forms condensation-coagulation structure, condensation mesh formed as the result of interaction between free polymeric radicals. The interoperability “SPP” and “APP” with oligomers have been studied by infra-red spectroscopy. At the confluence of the chain molecules by the polar functional groups formed structured polymer, which has a higher strength and protective properties due to the presence of two monosubstituted aromatic compounds in mixture. After in vivo polymerization of modified polymer compositions with “APP” forms strong, glossy, brown film with a sufficiently high adhesion and deformability. Based on studies modification of the compositions, which consists of oligomer of polystyrene resin and oil polymer resin “SPP”, was formed new polymer compositions for the anti-corrosion coating steel pipes. The developed composition was subjected to aggressive environments. Ability of coatings to protect the metal from corrosion is determinated by their chemical resistance, permeability and adhesion to metal in operating conditions. The chemical resistance of coatings is measured largely by the change of mechanical properties. The main mechanical properties of coating when exposed to aggressive environment are their hardness and adhesion strength.