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| Correlation Study on Natural and Xenon Lamp Weathering Tests of Powder Coating Based on Polyester Resin in Hot-Humid Environment |
| Received:March 10, 2019 Revised:December 03, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.10.017 |
| KeyWord:polyester powder coating natural weathering xenon lamp weathering accelerated factor |
| Author | Institution |
| SHI Yu |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd., Guangzhou , China |
| JIE Gan-xin |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd., Guangzhou , China |
| QI Li |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd., Guangzhou , China |
| WANG Jun |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd., Guangzhou , China |
| GAO Ze-hai |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd., Guangzhou , China |
| ZHANG Jie |
Guangzhou Kinte Material Technology Co., Ltd., Guangzhou , China |
| TAO You-ji |
State Key Laboratory of Environmental Adaptability for Industrial Products, China National Electric Apparatus Research Institute Co., Ltd., Guangzhou , China |
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| Abstract: |
| Objective To research the correlation of natural and artificial weathering polyester powder coating. Methods Natural exposure tests of NH3307, NH5307, NH9307 polyester powder coatings were carried out in Qionghai hot and humid climate. The correlation of natural and accelerated ageing was compared through four kinds of xenon lamp accelerated aging tests to choose the method which was most suitable for simulating the hot and humid environment xenon lamp accelerated aging. The gloss retention, the method for xenon lamp accelerated aging test in hot and humid environment and the acceleration in natural hot and humid environment (Qionghai) were discussed. Results After 24 months of natural aging, the gloss retention of NH3307 and NH5307 dropped to about 50% of the initial performance, that of NH9307 coating dropped to around 70%. The accelerated factor of xenon lamp accelerated aging method for two to three kinds of coating was17.62, 12.44 and 10.36 respectively. Conclusion NH9307 coating has the best weather resistance. The second method of Xenon lamp accelerated aging test can well simulate the coating aging process in hot and humid environment. |
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