Preparation of UPR/Cu-Zn-Al₂O₃ Nanocomposite Coating for Mild Steel Corrosion Protection

Abstract:

Polymer coatings are thin layers of corrosion protection that can be applied to welded steel. Developing a polyester-based coating with metal fillers could assist homogeneous dispersion on weld surfaces. This study develops and characterizes the unsaturated polyester-Cu-Zn-Al₂O₃ coating and its corrosion performance on the welded steel. Cu-Zn-Al₂O₃ reinforcement was first milled at 40 h at 300 rpm, mixed with polyester to produce a film, and coated on welded steel. The results showed that milled consists of nanostructure and various particle distributions. The composition of the film consists of two distinct materials: amorphous polyester and crystalline Cu, Zn, and Al₂O₃. The ratio of these materials within the film influences its properties. The amount of filler in the polyester-Cu-Zn-Al₂O₃ composite film was maximum at 2.0 wt%. The corrosion rate monitored from 5 to 20 days shows a consistent trend, with 2.0 wt% showing the highest corrosion resistance.

• Periodical: Journal of Metastable and Nanocrystalline Materials (Volume 41)
• Pages: 29-34
• DOI: https://doi.org/10.4028/p-4xY6Jb
• Online since: April 2025
• Authors: Yusoff Mahani*, Ismail Mohammad Amir Husni, Teo Pao Ter, Wan Nik Wan Mohd Norsani, Razali Mohd Hasmizam
• Keywords: Corrosion Protection, Nanocomposite, Polyester Coating, Welded Steel

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