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Analysis and alternative selection of nano powder modifier for improving special protective coating system

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Document pages: 11 pages

Abstract: In this paper, a practical method of reasonably selecting silica nano powder as modifier is proposed to control and improve the performance of protective coating system operating under harsh environmental conditions. The method is based on multi parameter analysis of the reactivity of silica like nanoparticles synthesized by chemical and physical methods. The analysis shows that there are obvious adsorption centers due to the difference of particle formation; The characteristics of formation and adsorption mechanism lead to higher diffusion ability of nanoparticles synthesized by physical methods in coating materials, and finally lead to stronger chemical bonds between system elements. This method allows to reduce the consumption of paint materials by 30 or more, at least 2-3 Tims increasing of the coating adhesion and hence the system life. Validity of the approach is illustrated through the data obtained from comparative modeling, factory testing, and practical use of modified systems.

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