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<p>In this paper, a bright, smooth and flexible tin coating on copper surface in methanesulfonic acid was prepared using polyoxyethylene-8-octylphenyl ether (Triton X-100) as surfactant, glutaraldehyde as auxiliary brightener and benzylacetone as brightener through electrodeposition technology, and its morphology, composition and adhesion were characterized by surface analysis techniques and bending tests. In addition, the electrochemical performance of plating solutions containing different additives and the resistance of tin coating to corrosion in a 3.5 wt.% NaCl solution were also investigated using electrochemical testings. The results showed that benzylacetone had stronger adsorption properties than glutaraldehyde, and could effectively suppress the growth of tin dendrites and improve the cathodic polarization ability of plating solutions. When combined, they exhibited higher binding energy on the tin (112) surface and had the highest adsorption stability, making the surface of tin coating smoother, more flexible and more corrosion resistant.</p>

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Preparation of a tin coating on copper surface in methanesulfonic acid and its corrosion resistance

  • 期刊论文

  • 发表日期：

    2025年9月23日

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  • Feiyu Hu,
  • Hualiang Huang

摘要

In this paper, a bright, smooth and flexible tin coating on copper surface in methanesulfonic acid was prepared using polyoxyethylene-8-octylphenyl ether (Triton X-100) as surfactant, glutaraldehyde as auxiliary brightener and benzylacetone as brightener through electrodeposition technology, and its morphology, composition and adhesion were characterized by surface analysis techniques and bending tests. In addition, the electrochemical performance of plating solutions containing different additives and the resistance of tin coating to corrosion in a 3.5 wt.% NaCl solution were also investigated using electrochemical testings. The results showed that benzylacetone had stronger adsorption properties than glutaraldehyde, and could effectively suppress the growth of tin dendrites and improve the cathodic polarization ability of plating solutions. When combined, they exhibited higher binding energy on the tin (112) surface and had the highest adsorption stability, making the surface of tin coating smoother, more flexible and more corrosion resistant.