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| Failure Behaviors of Polyurethane Coatings in Xenon Lamp Aging Exposure and Sanya Outdoor Exposure Experiments |
| Received:October 13, 2015 Revised:April 15, 2016 |
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| DOI：10.7643/issn.1672-9242.2016.02.011 |
| KeyWord:gloss polyurethane coating correlation aging |
| Author | Institution |
| ZHANG Han-lu |
School of Materials Science and Engineering， Beijing University of Chemical Technology， Beijing ， China |
| CAO Jing-yi |
Navy Equipment Technology Institute， Beijing ， China |
| LI Liang |
Navy Equipment Technology Institute， Beijing ， China |
| DUN Yu-chao |
School of Materials Science and Engineering， Beijing University of Chemical Technology， Beijing ， China |
| ZUO Yu |
School of Materials Science and Engineering， Beijing University of Chemical Technology， Beijing ， China |
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| Abstract: |
| Objective To study failure behaviors of the polyurethane coating in Sanya outdoor exposure experiments and xenon lamp aging experiments, and analyze the relationships of gloss between xenon lamp aging experiments and Sanya outdoor exposure experiments. Methods The aging failure rule and behavior of the polyurethane coating in Sanya outdoor exposure experiments and xenon lamp aging experiments were investigated by infrared spectroscopy, metallographic microscopy and scanning electron microscopy. Results Relative to Sanya outdoor exposure, with the complete gloss loss of polyurethane coating as a basis for calculation, the accelerated factor of xenon lamp aging on polyurethane coating failure was about 4.3. Conclusion It indicated that the surface morphology of polyurethane coatings in xenon lamp aging and Sanya outdoor exposure experiments was similar, and the degradation mechanism was consistent. Xenon lamp aging experiments could simulate seawater exposure experiments. |
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