Graphene Oxide on Rheological and Self-healing Properties of Modified Asphalt  

氧化石墨烯改性沥青的流变及自愈合性能的影响

作　　者：LIU Qinbao ZHAO Yan GAO Honggang YAN Luchun 刘琴宝;赵艳;高宏刚;颜鲁春(甘肃省陇南公路事业发展中心,甘肃陇南742500;西安明德理工学院,陕西西安710000;西北寒旱区公路基础设施长期性能交通运输行业野外科学观测研究基地,甘肃兰州730000;甘肃恒路交通勘察设计院有限公司,甘肃兰州730000)

机构地区：[1]Longnan Highway Development Centre of Gansu Province,Longnan 742500,China [2]Xi’An MingDe Institute of Technology,Xi’An 710000,China [3]Scientific Observation and Research Base of Transport Industry of Long Term Performance of Highway Infrastructure in Northwest Cold and Arid Regions,Lanzhou 730000,China [4]Gansu Henglu Traffic Survey and Design Institute Co.,Ltd.,Lanzhou 730000,China

出　　处：《材料科学与工程学报》2025年第1期80-89,共10页Journal of Materials Science and Engineering

基　　金：supported by Gansu Provincial Science and Technology Plan(23CXGA0195);Longnan Science and Technology Plan(2024CX03)。

摘　　要：Graphene oxide nanomaterials are increasingly used in various fields due to their superior properties.In order to study the influence of graphene oxide additives on the performance of modified asphalt,in this study,graphene oxide modified asphalt was prepared and characteristics was studied including the high deformation resistance performance and the self-healing property of modified asphalt.Functional groups and morphology of graphene oxide modified asphalt were described by Fourier transform infrared spectroscopy.The high deformation resistance performance and self-healing effect of asphalt samples were obtained through dynamic slear rheometer(DSR)test.Results shows that graphene oxide dispersions improve the performance of asphalt relatively well compared to graphene oxide powder.There is no chemical reaction between graphene oxide and asphalt,but physical connection.The addition of graphene oxide improved the high deformation resistance of modified asphalt and expedited the self-healing ability of asphalt under fatigue load.氧化石墨烯纳米材料因其优异的性能被越来越多地应用于各个领域。为了研究氧化石墨烯添加剂对改性沥青性能的影响,本研究制备了氧化石墨烯改性沥青,并研究了改性沥青的高抗变形性能和自愈合性能。采用傅里叶变换红外光谱对氧化石墨烯改性沥青的官能团和微观形貌进行分析,动态剪切流变仪(DSR)试验显示沥青样品具有较高的抗变形性能和自愈合效果。研究结果表明,氧化石墨烯分散液相较于粉末状氧化石墨烯能相对较好地改善沥青性能。氧化石墨烯与沥青之间不存在化学反应,而是存在物理连接。氧化石墨烯的加入提高了改性沥青的抗变形性能,加快了沥青在疲劳载荷下的自修复能力。

关 键 词：Graphene Oxide Modified asphalt Rheological property SELF-HEALING 

分 类 号：TB333[一般工业技术—材料科学与工程]