Tổng hợp hydrotalxit mang stearat và ứng dụng trong lớp phủ epoxy để bảo vệ chống ăn mòn cho thép cacbon


Authors

  • Nguyễn Thùy Dương
  • Bùi Văn Trước
  • Thái Thu Thủy
  • Tô Thị Xuân Hằng
  • Trịnh Anh Trúc
DOI: https://doi.org/10.15625/0866-7144.2015-00162

Keywords:

Hydrotalcite, epoxy coatings, stearate, corrosion, carbon steel

Abstract

Hydrotalcite containing stearate (HT-SA) was prepared using the co-precipitation method. The HT-SA obtained was characterized by Fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA). The results showed that the stearate is present in hydrotalcite (about 26.5 %). The inhibitive efficiency of HT-SA on carbon steel was characterized by electrochemical method and the protective properties of the epoxy coating containing HT-SA were evaluated by electrochemical impedance spectroscopy (EIS). The obtained results showed that the HT-SA is an anodic inhibitor. Its efficiency was about 74 % at a concentration of 3 g/l. The presence of HT-SA (3 %) improved the barrier properties and corrosion protection of the epoxy coating.

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Published

31-08-2015

How to Cite

Dương, N. T., Trước, B. V., Thủy, T. T., Xuân Hằng, T. T., & Trúc, T. A. (2015). Tổng hợp hydrotalxit mang stearat và ứng dụng trong lớp phủ epoxy để bảo vệ chống ăn mòn cho thép cacbon. Vietnam Journal of Chemistry, 53(4), 456–460. https://doi.org/10.15625/0866-7144.2015-00162

Issue

Vol. 53 No. 4 (2015)

Section

Articles