Ke Oanh Vu, Thi Xuan Hang To, Anh Truc Trinh, Thuy Duong Nguyen, Gia Vu Pham, Anh Son Nguyen, Thu Thuy Thai, Hiroyuki Tanabe, Ryuichi Aoki


Coating systems based on zinc rich primer and fluoropolymer top coat were exposed for 8 years at different atmospheric stations in Vietnam: Hanoi, Ha Long and Nha Trang. For comparison the coating system with zinc rich primer and polyurethane topcoat was also tested. The degradations of coating systems were evaluated by gloss measurement and electrochemical impedance spectroscopy. The obtained results show that coating systems with zinc rich primer and top coatings based on fluoropolymer  and polyurethane topcoats show very high weather resistance and corrosion protection performance, but the systems with fluoropolymer are better than coating system with polyurethane topcoat.


fluoropolymer, tropical atmospheric exposure, weather resistance, corrosion protection

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Davis and D. Sims, Weathering of Polymers, Applied Science, London (1983).

S.H. Hamid, M.B. Amin, A.G. Maddhah (Eds.), Handbook of Polymer Degradation, Marcel Dekker, New York (1992).

Posada F. and Gardette J. L., Photo-oxidation of cured fluorinated polymers IV. Photo-oxidation of the fluorinated copolymer network with urethane linkage, Polymer degradation and stability 70 (1), (2000) 17-29.

Hiroyuki Tanabe, Winn Darden, Masanori Nagai, Takashi Takayanagi, The Progress of Newly Developed Fluoro-polymer Topcoat Systems- Weathering Performance And Track Records Since the 1980's, Corrosion 2011, Houston Texas, March (2011) 13 – 17.

Takashi Takayanagi, Masaaki Yamabe, Progress of fluoropolymers on coating applications: development of mineral spirit soluble polymer and aqueous dispersion, Prog. Org. Coat. 40 (2000) 185–190.

Kurt A. Wood, Christopher Cypcar, Lotfi Hedhli, Predicting the exterior durability of new fluoropolymer coatings, Journal of Fluorine Chemistry 104 (2000) 63-71.

H. Tanabe, M. Nagai, M. Kano, T. Shinohara; Evaluation of protective coatings by a current interrupter technique, The Electrochemical Society、Proceedings of the symposium on ADVANCES IN CORROSION PROTECTION BY ORGANIC COATINGS (1993).

Masanori Nagai, Tsuyoshi Matsumoto, Hiroyuki Tanabe, Weather-ability of fluoro-polymer top coat, paper No.06037 NACE2006 (2006).

Nguven Nhi Tru, Hiroyuki Tanabe, Masanori Nagai, Degradation of polyurethane and fluoro-polymer top coatings in tropical environment, 16th International Corrosion Congress (2005).

Thi Xuan Hang, Pham Gia Vu, Vu Ke Oanh, Trinh Anh Truc, Toshiaki Kodama, Hiroyuki Tanabe, Tohru Taki, Masanori Nagai, Influence of pigment on weather resistance of coatings. 13th Asian-pacific Corrosion Control Conference (2003).

Kurt Wood, Effect of Fluoropolymer Architecture on the Exterior Weathering of Coatings, Macromol. Symp. 187 (2002) 469–479.

S. Moriya, K. Kanai, T. Nakano, M. Nagai T. Ohsawa, Collaboration of twenty years exposure test in off-shore environment, Report of Civil Engineering Institute Japan, No.345 (2006).

X.F. Yang, C. Vang, D.E. Tallman, G.P. Bierwagen, S.G. Croll, S. Rohlik, Weathering degradation of a polyurethane coating, Polym. Degrad. Stab. 74 (2001) 341–351,

J. Kittel, N. Celati, M. Keddam, H. Takenouti, Influence of the coating–substrate interactions on the corrosion protection: characterisation by impedance spectroscopy of the inner and outer parts of a coating, Prog. Org. Coat. 46 (2003) 135-147.

DOI: https://doi.org/10.15625/2525-2518/56/3B/12871


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