复合因素下机场土质道面聚合物功能性面层耐磨性能研究  

Wear Resistance of Functional Surface Layer of Airport Soil Pavement Polymer Under Composite Factors

作　　者：肖定侃 高培伟 张俊[2] 许巍[2] 刘咏茜 XIAO Dingkan;GAO Peiwei;ZHANG Jun;XU Wei;LIU Yongqian(College of Civil Aviation,Nanjing University of Aeronautics&Astronautics,Nanjing 211106,China;College of Aeronautical Engineering,Air Force Engineering University,Xi’an 710038,China;Air Force Logistics Department,Beijing 100009,China)

机构地区：[1]南京航空航天大学民航学院,南京211106 [2]空军工程大学航空工程学院,西安710038 [3]空军后勤部,北京100009

出　　处：《南京航空航天大学学报》2024年第6期1143-1151,共9页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：国家自然科学基金项目(52308470);陕西省自然科学基础研究计划项目(2023-JC-YB-375)。

摘　　要：机场土质道面易松散,耐磨性能较差,产生大量扬尘和碎屑,危害飞机安全。提出将改性聚脲、环氧树脂以及硅烷渗透型材料作为机场土质道面功能性面层,对其进行复合因素作用下的磨耗试验,并通过扫描电子显微镜分析3种功能性面层材料的作用机理,分析功能性面层材料在机场土质跑道的适用性。结果表明,冻融‑紫外线老化下,与对比组相比,改性聚脲组质量损失降低59.7%,硅烷组降低32.4%,环氧树脂组降低16.1%,改性聚脲在冻融‑紫外线中的改善作用较明显;环氧树脂在前期虽具有较高的耐磨性能,但20转磨耗之后,其损耗质量快速增长,不建议长期使用;经过冻融‑火焰喷蚀、干湿循环‑紫外线老化以及干湿循环‑火焰喷蚀试验后,硅烷组的质量损失较小,分别为4.28%、3.02%、2.87%,均远低于对比组,干湿循环及火焰喷蚀后硅烷组显示出了良好的防水及耐高温性能,硅烷材料对面层使用性能强化作用明显。硅烷/改性聚脲组合强度在干湿循环后相较初始值降幅仅23.1%,冻融循环后仅下降29.5%,其抗干湿循环及抗冻性能提升较大。研究结果可为机场土质道面功能性面层材料的选择提供借鉴。The soil pavement of the airport is easy to lose,the wear resistance is poor,and a large amount of dust and debris are generated,which endangers the safety of the aircraft.Modified polyurea,epoxy resin and silane permeable materials are used as functional surface layers of airport soil pavement,and the abrasion test under the action of composite factors is carried out.The action mechanism of the three functional surface materials is analyzed by scanning electron microscopy,and the applicability of functional surface materials to the airport soil runway is analyzed.The results show that under freeze-thaw and ultraviolet aging conditions,the mass loss of the modified polyurea group is reduced by 59.7%,the silane group is reduced by 32.4%,and the epoxy resin group is reduced by 16.1%compared with the comparison group,which means the improvement effect of modified polyurea under freeze-thaw and ultraviolet aging conditions.Although epoxy resin has high wear resistance in the early stage,after 20 revolutions of wear,its loss quality grows rapidly,and long-term use is not recommended.After freeze-thaw-flame spraying,dry-wet cycle-ultraviolet aging and dry-wet cycle-flame spray test,the mass loss of the silane group is smallest,which is 4.28%,3.02%and 2.87%,respectively,which are much lower than those of the comparison group.The silane group shows good waterproof and high temperature resistance after dry and wet cycle and flame etching.The silane material enhances the performance of the surface layer obviously.The strength of the silane/modified polyurea combination decrease by only 23.1%after the initial value after the dry-wet cycle and only 29.5%after the freeze-thaw cycle,indicating that its resistance to dry-wet cycle and frost resistance is greatly improved.The results can provide a reference for the selection of functional surface materials of the airport soil pavement.

关 键 词：简易机场 土质道面 功能性面层 道面材料 耐磨性能 

分 类 号：TU411[建筑科学—岩土工程]