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| Comparative Study on Coating Performance Changes in Natural and Simulated Tropical Marine Atmospheric Environments |
| Received:May 05, 2023 Revised:June 13, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.11.019 |
| KeyWord:coating tropical marine atmosphere natural exposure laboratory simulation corrosion behavior correlation |
| Author | Institution |
| LI Qian |
Southwest Institute of Technology and Engineering, Chongqing , China |
| HU Tao |
Southwest Institute of Technology and Engineering, Chongqing , China |
| SUN Mao-jun |
Southwest Institute of Technology and Engineering, Chongqing , China |
| WANG Ling |
Southwest Institute of Technology and Engineering, Chongqing , China |
| MOUXian-liang |
Southwest Institute of Technology and Engineering, Chongqing , China |
| LI Hao-yu |
Southwest Institute of Technology and Engineering, Chongqing , China |
| HE De-hong |
Jiangjin Atmospheric Material CorrosionField National Observation and Research Station, chognqing , China |
| REN Yan |
Beijing North Vehicle Group Corporation, Beijing , China |
| REN Jing |
China North Industries Corp.Beijing , China |
| XIAO Lin-lin |
Beijing North Vehicle Group Corporation, Beijing , China |
| YANG Li-kun |
China North Industries Corp.Beijing , China |
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| Abstract: |
| The work aims to study the performance changes of coatings in natural and simulated tropical marine atmospheric environments, to verify the rationality of the method for simulating marine atmospheric environment by reproducing the environmental effects and damage processes of coatings in natural environments. Based on the analysis of the coating on ships, carrier based aircraft, and other equipment in the tropical ocean atmosphere, and in combination with environmental factors such as temperature, humidity, salt mist, and solar radiation in the tropical marine atmosphere, a comprehensive experimental process was designed to simulate the tropical ocean atmosphere environment in the laboratory. A comparative test of three coatings in Wanning, Hainan for a period of one year and a total laboratory cycle of seven cycles was conducted. According to the test of three coatings in the natural environment and the simulated environment in laboratory, the performance changes of coatings showed a similar trend. The loss of light and color difference increased, the adhesion significantly decreased, and the AC impedance value decreased. The infrared spectroscopy analysis showed no significant change in the aging mechanism. The average rank correlation coefficient based on gloss and color difference was 0.87, which is highly correlated. The experimental method for simulating tropical marine atmospheric environment is reasonable in design and has good simulation performance. |
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