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

Nguyễn Thùy Dương, Bùi Văn Trước, Thái Thu Thủy, Tô Thị Xuân Hằng, Trịnh Anh Trúc
Author affiliations

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