| Autor: |
Van Khoe, Le, Hung, Ha Manh, Thuy, Hoang Thi, Binh, Pham Huy, Anh, Bui Tuan, Duc, Le Minh, Huong, Nguyen Thi, Oanh, Doan Thi Yen, Thai, Nguyen Xuan, Trung, Vu Quoc |
| Zdroj: |
Vietnam Journal of Chemistry; August 2024, Vol. 62 Issue: 4 p540-546, 7p |
| Abstrakt: |
Polypyrrole/SiO2nanocomposite doped with 3‐nitrosalicylic acid was synthesized in three concentrations of 3‐nitrosalicylic acid: 0.01 m, 0.005 m, and 0.0025 m. FTIR spectroscopy, thermogravimetric analysis (TGA), Raman scattering spectroscopy, and FESEM imaging further assisted in determining the shape and structure of the polypyrrole/nanocomposite product. The aluminum protection arrangement of the paint film comprising polypyrrole/SiO2nanocomposite doped with 3‐nitrosalicylic acid was proven by electrochemical methods. The salt spray test results also demonstrated the protective efficacy of the paint film comprising polypyrrole/SiO2nanocomposite doped with 3‐nitrosalicylic acid to suppress corrosion. The best corrosion prevention results were obtained with a polypyrrole/SiO2nanocomposite dispersion paint film doped with 0.01 m3‐nitrosalicylic acid at a concentration of 2%. Open circuit potential curves of aluminum coated with original paint film (Mo), paint film containing SiO2(T1), and paint film containing Ppy/SiO2(T2, T3, T4, and T5) according to immersing time in 3% NaCl solution. |
| Databáze: |
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