Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)
- 2006.11a
- /
- Pages.173-176
- /
- 2006
The Effect of Additive to Corrosion Resistance of Heavy Anti-Corrosive Paint
중방식 도료의 내식성에 미치는 첨가제의 영향
- Moon, Kyung-Man (Korea Maritime Univ.) ;
- Lee, Myung-Hoon (Korea Maritime Univ.) ;
- Kim, Hyun-Myung (Byucksanpaint & Coatings co, ltd.) ;
- Lee, In-Won (Pusan Nation Univ.) ;
- Jeon, Ho-Hwan (Pusan Nation Univ.)
- Published : 2006.11.16
Abstract
There are many kinds of protection methods for marine structures by using and environmental condition. Coating protection method, one of these methods is being widely adopted to both all ground and marine structures. In this study, by adding some additives such as Zn powder(Zn), carbon black(CB) to epoxy anti-corrosive paint, the effect to promote corrosion resistance was investigated with electrochemical method. Corrosion potentials with additives shifted to negative direction than no additive. However passivity current density increased than no additive except for Zn(20)+CB(10), especially, additive of Zn(20)+CB(10) showed the smallest passivity current density. Polarization resistance of Zn(20)+CB(10) by both cyclic voltammogram and impedance measurement was the largest value than other additives. And also surface phenomenon by adding Zn(20)+CB(10) was observed a good add condition not showing bubbling than other additives.
Keywords
- Corrosion resistance;
- Coating protection method;
- Anti-corrosive paint;
- Additive;
- Cyclic voltammogram;
- Impedance