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首页> 外文期刊>Journal of Applied Polymer Science >A functional and robust super-hydrophobic PCC coating based on the induced assembly of modified zirconium phosphate
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A functional and robust super-hydrophobic PCC coating based on the induced assembly of modified zirconium phosphate

机译：A functional and robust super-hydrophobic PCC coating based on the induced assembly of modified zirconium phosphate

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摘要

Improving the permeability of concrete is one of the important measures to extend the service life of concrete. In addition, for marine engineering, sewerage projects, and so on, mechanical stability and microbial induced corrosion of concrete structures cannot be ignored. We demonstrated a method to prepare high-performance super-hydrophobic (SHP) coating using functional zirconium phosphate (ZrP) and polydopamine (PDA) as the primary materials. The micro-nano rough structures were constructed on the concrete surface by alternating organic-inorganic assembly guided by each other. The coatings' apparent morphology, composition, and structure were analyzed using various surface analysis techniques. Based on the construction of micro-nano rough structures by the induced assembly of functional ZrP, the silane treatment significantly improved the water contact angle of the coating (WCA = 154 degrees +/- 3 degrees), and the coating exhibited relatively high wear resistance, reaching 135 degrees WCA even after 30 friction cycles. The water absorption of the specimens treated with the SHP composite coating was reduced by 79 to treated with silane. Meanwhile, the SHP composite coating showed excellent antimicrobial and anti-ice properties, due to the role of the functional ZrP and alternating organic-inorganic assembly. It was expected that the composite coating might potentially promote and accelerate applied superhydrophobic anticorrosive coating development for marine concrete durability.

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