INCREASING OF THE CORROSION RESISTANCE OF FIBERGLASS PLASTIC REINFORCEMENT THROUGH MODIFICATION OF THE POLYMER BINDER

The issue of increasing the corrosion resistance composite reinforcement, based on glass fiber and epoxy anhydride binder, is considered. proposed samples reinforcement were manufactured by needle extrusion technology. Glass fibers evenly distributed in channels impregnated with a polymer binder resin. amount phenolic modifier according to technological mode obtaining was brought up 5%. With further increase content modifier, degree conversion groups no more than 70%, which sharply reduced operational characteristics material. overall ratio ~ 60÷40. It established that at low concentrations (up 5 wt. parts), processes ordering chemical grafting lead compaction molecular grouping system, our case characteristic resins novolach resol types. At same time, under conditions production technology, internal stresses materials this type sharply, leads formation surface defects (microcracks). tip crack or defect, sodium ions other cations action water undergo hydrolysis form metal hydroxide, which, turn, causes siloxane bonds, thus weakening mesh structure silicon dioxide. experimental activation energy identified ion diffusion mass. But plastic deformation region before very small, instead uniform distribution stress, material cracks along weakened centers obtained data indicate alkaline environment an increased loss mass composite, both for unmodified those modified traditional resins. In ensures high penetration alkalis into volume material, access reinforced their subsequent damage. To it advisable use reactive sulfur-containing modifier. Its ability maintain permissible monolithicity fiberglass concrete, modulus elasticity necessary strength. Keywords: fiberglass, environment,