Abstract ▼ AI-Helper

The objective of this research is to investigate that the effects of Benzotriazle(BTA) and Sodium molybdate on the inhibitor of electrolytic copper foil(CF).
The effects of the addition of Sodium molybdate in electrolyte containing BTA with Citric acid on the corrosion characteristics of modifie...

The objective of this research is to investigate that the effects of Benzotriazle(BTA) and Sodium molybdate on the inhibitor of electrolytic copper foil(CF).
The effects of the addition of Sodium molybdate in electrolyte containing BTA with Citric acid on the corrosion characteristics of modified CF were investigated. The surface morphology analysis of modified CF and composition analysis were analyzed by scanning electron microscopy(SEM) with the Energy Dispersive X-ray(EDX) spectroscopy. The anti-tarnish treatment of CF was conducted with BTA solution containing Sodium molybdate to use various concentration. The corrosion behavior of the modified CF was evaluated by potentiodynamic polarization test in 0.9% NaCl solution.
The results showed that the corrosion potential of virgin CF increased from –158.503 mV to –44.918 mV, and the corrosion current density decreased from 6.421 A/cm2 to 0.488 A/cm2 through surface treatment in electrolyte containing 50 mM Sodium molybdate.
The surface roughness(Ra) decreased from 0.219m to 0.168m as the Sodium molybdate concentration increased from 0 to 50mM in the electrolyte.
Anti-heating and anti-moisture discoloration E data were evaluated by color meter in 120℃, 180℃ high temperature and 80℃, 80% high humidity. The Modified CF showed excellent anti moisture and heating characteristic. Molybdate as an additives promote the passivation of CF’s surface.