双组分道路交通标线研究进展

为了有效提高双组分道路交通标线的路用性能,促进双组分道路交通标线的推广应用,本文通过梳理国内外对双组分道路交通标线路用性能的最新研究成果,简要介绍了双组分道路交通标线材料体系及其固化原理,总结了道路标线耐久性的评价指标,并探讨了温度、雨水侵蚀、紫外辐射以及车辆磨耗等对其的耐久性的影响。同时,论述了面撒玻璃珠和发光材料对提升道路交通标线可视性的效果,结果表明,面撒密度范围9%~24%的高折射率玻璃珠和添加发光粉SrAl2O4:Eu²⁺,Dy³⁺对道路标线可视性提升效果最佳。此外,阐述了组成设计优化、纳米材料(纳米TiO2、纳米填料和纳米粘土)等方法改善道路交通标线的路用性能的方法,并在此基础上对未来的发展和研究方向进行了展望,以期推动双组分道路交通标线的发展,助力交通强国建设。

Research Progress of Two-component Road Marking

In order to improve the road performance and promote the application of two-component road markings, the latest research findings of two-component road markings were summarized, and the material system and curing mechanism of two-component road markings were analyzed. In addition, the durability indexes of road marking were concluded. Then, the impact factors of durability, such as temperature, rain erosion, ultraviolet radiation and vehicle wear were discussed. Furthermore, the influence of glass beads and luminescent materials on the visibility of road markings were investigated. The results show that the visibility of road markings was the best under the high refractive index glass beads with spreading density of 9%~24% and luminescent powder of SrAl2O4: Eu2+, Dy3+. The design optimization methods and nano-materials (nano-TiO2, nano-fillers and nano-clay) were elaborated to improve the road performance of markings. Finally, the research directions of road markings were prospected, by which the development of two-component road markings were expected to be promoted.