Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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The Influence of Hydrotalcite Intercalated with Benzoate on UV Stability of Acrylic Coating

  • Nguyen, Thuy Duong (Institute for Tropical Technology, Vietnam Academy of Science and Technology) ;
  • Nguyen, Anh Son (Institute for Tropical Technology, Vietnam Academy of Science and Technology) ;
  • Thai, Thu Thuy (Institute for Tropical Technology, Vietnam Academy of Science and Technology) ;
  • Pham, Gia Vu (Institute for Tropical Technology, Vietnam Academy of Science and Technology) ;
  • To, Thi Xuan Hang (Institute for Tropical Technology, Vietnam Academy of Science and Technology) ;
  • Olivier, Marie-Georges (Universite de Mons (UMONS), Faculty of Engineering, Materials Science Department)
  • Received : 2020.01.05
  • Accepted : 2020.02.05
  • Published : 2020.02.28
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Abstract

It is important to realize that benzoate was intercalated into hydrotalcite (HTC-Bz) by the co-precipitation method. In this case, acrylic coating with 0.5 wt% HTC-Bz was deposited on carbon steel using the spin coating method. Next, the HTC-Bz structure was characterized by Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR). In fact, an ultraviolet vision spectroscopy (UV-Vis) was used to determine the benzoate content in HTC-Bz, and the UV absorption ability of HTC-Bz. Using electrochemical techniques, water contact angle measurement, and thermal-gravimetric analysis, we compared the protective properties before and after QUV test, hydrophobicity and the thermal stability of acrylic coating containing HTC-Bz. The obtained results showed that HTC-Bz with a plate-like structure was successfully synthesized; benzoate was intercalated into the interlayer of hydrotalcite with a concentration of 28 wt%. Additionally, it was noted that HTC-Bz has an UV absorption peak at 225 nm. In conclusion, the addition of HTC-Bz enhanced the UV stability, hydrophobicity and the thermal stability of acrylic coating.

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References

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