Novel polymer/hybrid coatings for concrete protection using poly methyl methacrylate (scrap) as seeded particles

Abstract

This work exhibits the synthesis and characterization of novel polymer/hybrid coatings for concrete protection. The coatings have been prepared by polymerization of vinyl acetate, butyl acrylate, or glycidyl methacrylate with hydroxyl ethyl methacrylate and toluidine as multiple shells in presence of poly methyl methacrylate (scrap) as seed particles and silica (natural sand) as inner core forming the corresponding C₁, C₂, and C₃ coatings, respectively. The prepared polymer coatings have been characterized via Fourier transform-infrared spectroscopy, thermogravimetric analysis, transmission electron microscope, and SEM. The prepared coats have been tested on ready-made concrete slates. The polymer coatings have been applied with ease on dry concrete slates. Test results showed that the polymer coatings have good bonding strength with dry concrete surfaces ranging between 0.78 and 0.99 MPa. No failure was observed for more than 1 year with the coated concrete slates. The acid and base resistance as well as abrasion resistance of the coated concrete slates have been also evaluated and investigated. The performance of the prepared polymer coatings in 3% sulfuric acid and 20% sodium hydroxide solutions has proved the effectiveness of the prepared coatings in protecting the concrete slates.

Keywords

Polymer hybrid coatings concrete protection bonding strength mechanical properties abrasion resistance

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