Preparation of High-Luminescent Materials and Application of Luminescent Coatings in Road Engineering
Publication: Journal of Materials in Civil Engineering
Volume 34, Issue 8
Abstract
With the development of the highway industry and new materials, long-afterglow luminescent material as a new energy storage and environmental protection material has gradually been applied to night lighting. In this study, , long-afterglow materials were prepared by the solid-state reaction method. The luminescent properties were improved by changing the process parameters. The single-factor test results indicated that the luminescent properties were highest when flux content, calcination temperature, calcination time, and doping ratio of Eu and Dy were 5%, 1,300°C, 2 h and , respectively. Then, long-afterglow materials with high luminescence were prepared by adding a pore-forming agent. The structural characteristics and optical properties of the products were analyzed. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis indicated that the addition of pore-forming agent did not change the crystal structure of the material but changed the surface morphology of the long-afterglow materials. The surface morphology of the products changed from flat and dense to a convex structure after adding pore-forming agent, and some connected pore structures were produced. The afterglow performance of products was continuously improved with the increase of pore-forming agent content. Finally, luminescent coatings were prepared by combining with fluorine-containing resin, and the performance was studied. The stability of luminescent coatings decreased with the increase of the filler:binder ratio, and the best ratio was . The luminous performance of coatings was best when the amount of long-afterglow phosphor was 40%. The luminescent coatings had good adhesion with the road surface, and the luminescence could last for more than 7 h in a dark environment.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The research was financially supported by National Natural Science Foundation of China (51978115), Chongqing Technology Innovation and application development special project (CSTC2019JSCX-MSXM1685), and the open fund of National & Local Joint Engineering Laboratory of Traffic Civil Engineering Materials, Chongqing Jiaotong University. The views in the paper only reflect those of the authors and not necessarily the views of the sponsors.
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Published In
Journal of Materials in Civil Engineering
Volume 34 • Issue 8 • August 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Aug 17, 2021
Accepted: Nov 30, 2021
Published online: May 18, 2022
Published in print: Aug 1, 2022
Discussion open until: Oct 18, 2022
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