Solution-casting of PS with CeO2/nanoclay in D-limonene for anti-corrosion coating

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ID: 285014
2023
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Abstract
Due to the various adverse effects that corrosion imposes, it is imperative to explore studies that center on developments and modifications of organic coating systems as a preventive measure. On the other hand, due to commercialization, a novel practice to recycle accumulated waste polystyrene (PS) is necessary. PS has potential as an anti-corrosion polymer coating, but its barrier and mechanical characteristics can still be further optimized by the incorporation of nanofillers. In this work, an environment-friendly and corrosion-resistant PS-based coating was synthesized through solution-casting in D-limonene with Cloisite-20 A (C20A) and CeO2. Formulations of C20A and CeO2 of varying concentrations and compositions were prepared and applied on metal coupons. The cured coatings were characterized by contact angle measurements; immersion test; cross-hatch adhesion test, and thermogravimetric analysis (TGA). Experimental runs were compared against a commercial epoxy primer as a control. Results showed that the coating treatments were successfully synthesized via solution-casting and the optimal concentration of PS in limonene is 9-wt%. Characterization of the coating revealed that the 5% C20A stood out with excellent anti-corrosion and adhesion properties and thermal stability among the coating treatments despite reduced hydrophobicity compared to the pure PS coating. With a CR and η% of 0.023263 mm y-1and 65.88%, respectively, 5% C20A performed significantly better among other treatments as well as against the commercial epoxy primer used as a positive control. The blending of 5% C20A resulted in the PS coating property enhancement which could be explained by the successful dispersion of the C20A particles.
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Authors Sia, Allison Jade K.
Journal Malay Journal
Year 2023
DOI
DOI not found
URL
https://animorepository.dlsu.edu.ph/etdb_chem/29
Keywords Keywords not found

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