Evaluation of Anticorrosive Performance of Organic Coatings Subjected to Cyclic Wet-dry Exposure |
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| 흡 .탈수 반복 환경하에서의 유기도막의 방식성 평가 |
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박진환,이근대,전호환 |
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부경대학교 응용화학공학부,부경대학교 응용화학공학부,부산대학교 첨단조선공학연구센타 |
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© 2004 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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| Keywords:
Organic Coatings, Water-Absorption/Desorption, Anticorrosive Property, Degradation, AC Impedance Spectroscopy |
| 핵심용어:
유기도막, 흡 탈수, 방식특성, 노화, 교류임피던스 |
| Abstract |
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Organic coatings are widely used to control of the corrosion of a steel structure. The water in coatings may cause the coatings to swell, leading to the degradation of the coatings. In addition, water affects the permeation of oxygen and other corrosive agents, and consequently, the presence of such substances at coating-metal interface promotes corrosion of the metal substrate. In this study, the anticorrosive properties of 4 types of coating, such as epoxy-epoxy, epoxy-urethane, urethane-epoxy, urethane-urethane, were evaluated. The evaluation tests were conducted under cyclic water-absorption/desorption conditions, consisting of alternative exposure to diluted 0.001M-LiCl(a$H_2O$ |
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