야간 시인성 확보를 위한 희토류 첨가 고내구성 장잔광 축광도료 제조에 관한 연구

우은석; 노윤석; 이진호; 최용욱; 김종기

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자료유형: 학술저널

저자정보: 우은석 (이에이바이오스) 노윤석 (이에이바이오스) 이진호 (이에이바이오스) 최용욱 (한국생산기술연구원) 김종기 (이에이바이오스)

저널정보: 한국표면공학회 한국표면공학회지 한국표면공학회지 제56권 제2호

발행연도: 2023.4

수록면: 152 - 159 (8page)

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The night visibility of pavement is being considered as a global issue in the field of traffic safety. Although the spreading glass beads on the lane paints has been mainly used to secure night-visibility by utilizing the effect of retroreflection, obvious shortcoming of this method is that retroflection does not occur in the range where the headlights do not reach the glass beads. The use of functional paints including phosphorescent constituents could be a solution for overcoming fore-mentioned problem. SrAl₂O₄ based chemicals have not only good phosphorescent property, but also are chemically stable compared to existing ZnS based materials. However, this chemicals also need the improvement due to slightly reduced luminous effect in time. Herein, we developed novel paints showing enhanced phosphorescent properties by putting rare earth elements such as Eu, Dy and Y into SrAl₂O₄. These prepared phosphorescent pigments have displayed improved properties in terms of durability and long afterglow. For instance, the property of afterglow has been persisted after 5 hours with luminace of 20.6 mcd/㎡.

#Phosphorescent paint #After-glow #Night visibility #Eco-friendly paint

참고문헌 (12)

참고문헌 신청

M. Lee, K. Choi, I.S. Oh, J. Kim, Analysis of traffic accident reduction performance of high-quality and longlife pavement marking materials, J. Korean Soc. Civ. Eng., 35 (2015) 921-929.

E. Han, J.H. Kang, C.H. Kim, S. Park, I. Yun, Study on the minimum recursive reflection performance according to the color of road surface, J. Korea Inst. Intell. Transp. Syst., 19 (2020) 37–48.

W. Park, Y. Kim, K. Park, S. Lee, Visibility evaluation of luminescent lane in case of adverse weather at nighttime, J. Korea Acad. Coop. Soc., 22 (2021) 859–867.

T.H. Kim, H.J. Hwang, J.H. Kim, K.T. Hwang, K.S. Han, Synthesis and characteristics of SrAl2O4: Eu2+, Dy3+ long afterglow phosphors by polymerized complex method, Korean J. Mater. Res., 26 (2016) 561–569.

S. Yeşilay Kaya, E. Karacaoglu, B. Karasu, Effect of Al/Sr ratio on the luminescence properties of SrAl2O4:Eu2+, Dy3+ phosphors, Ceram. Int., 38 (2012) 3701–3706.

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