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| Influencing Factors of Aging and Failure of Ocean Equipment Coatings |
| Received:October 23, 2019 Revised:November 22, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.02.017 |
| KeyWord:marine environment ocean equipment coating aging coating failure |
| Author | Institution |
| LI Liang |
Naval Academy, Beijing , China |
| CAO Jing-yi |
Naval Academy, Beijing , China |
| LI Xu |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| YIN Wen-chang |
Naval Academy, Beijing , China |
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| Abstract: |
| The paper aims tostudy the factors affecting aging and failure of ocean equipment coatings. The existing equipment coatings were selected for natural environmental exposure testing and laboratory accelerated environmental testing. The loss of light and chromatic aberration change of protective coatings were analyzed. Accelerated aging of coatings in the ocean environment was successfully simulated under laboratory conditions, and the accelerated test results were highly correlated with natural exposure results. After exposure to ocean environment for 6 months, the light lose rate of coating decreased, and powdering occurred after 18 months of exposure. After setting appropriate environmental test parameters through ultraviolet aging and salt spray tests, the natural exposure test can be replaced with laboratory accelerated environmental test to shorten the test period. The structure and shape of the substrate, the matching design of the coatings, the construction process and other factors can affect the aging and failure of the coatings directly, and thus lead to corrosion of substrate. |
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