摘要
随着现代科技的发展,对涂层性能提出了越来越高的要求,其应用环境也越来越苛刻,如腐蚀、高温和特殊识别等环境。在涂层中引入荧光探针是解决上述问题的重要途径。概括了荧光探针在涂层中的研究进展,并重点介绍了荧光探针在防腐涂层、热障涂层和防伪加密涂层中的应用和机理。将荧光探针用于防腐涂层,可赋予涂层特殊功能,可针对腐蚀起到自预警作用,重点介绍了p H响应型荧光探针、腐蚀离子响应型荧光探针、机械触发响应型荧光探针等在防腐涂层领域的作用机理;将荧光探针用于热障涂层,主要用于监测和分析高温环境,在紫外/可见光源激发下,通过测量磷光层发出的与温度相关的磷光信号来监测热障涂层的温度;将荧光探针用于防伪加密涂层,使得防伪加密涂层在特定条件下可以响应并发出荧光,可用于信息的加密存储、贵重物品的防伪识别等。重点介绍了热敏变色防伪涂层、光敏变色防伪涂层、湿敏变色防伪涂层、压敏变色防伪涂层的机理。指出了目前基于荧光探针的涂层仍存在的问题,并对未来的发展方向进行了展望。
Loading fluorescent probes into the coating can give the coating special fluorescence response performance,which is widely used in metal corrosion,metal high temperature monitoring and anti-counterfeiting encryption.The preparation technology and related applications of fluorescent probes in coatings at home and abroad were introduced,and the research progress of the mechanism of fluorescent probes used in coatings was discussed.The types of coatings applied to fluorescent probes included anti-corrosion coatings,thermal barrier coatings,and anti-counterfeiting coatings.The role of fluorescent probes in three coatings was described.Based on these three coating types,the preparation technology and function of fluorescent probes for coating were described.The mechanism of action of fluorescent probes in three types of coatings was clarified,and the future development direction was pointed out.The fluorescent probe was used for anti-corrosion coatings,which could give the coating a special function and play a self-warning role in corrosion;Fluorescent probes were used for thermal barrier coatings,which were mainly used to monitor and analyze high-temperature environments;The fluorescent probe was used for anti-counterfeiting coatings,mainly used for anti-counterfeiting encryption and storage,anti-counterfeiting identification of valuables,etc.The mechanism of pH-responsive fluorescent probe was mainly to use substances that were sensitive to pH value changes to produce fluorescence after interacting with hydrogen ions or hydroxide ions at the cathode of the corroded microregion,which provided early warning for the early corrosion of metal materials.The mechanism of corrosion ion-responsive fluorescent probes was mainly to fluoresce after the fluorescence probe interacted with the metal ions generated by the corrosion micro-anode,so as to predict the early corrosion of metals.The mechanism of mechanical damage-responsive fluorescent probes mainly referred to the chemical changes and color of fluorescent probes release
作者
杜娟
魏士钧
石玉超
刘礼平
汪鸿宇
宋海鹏
DU Juan;WEI Shi-jun;SHI Yu-chao;LIU Li-ping;WANG Hong-yu;SONG Hai-peng(Civil Aviation University of China,Tianjin 300300,China;Beijing Machine and Equipment Institute,Beijing 100854,China)
出处
《表面技术》
EI
CAS
CSCD
北大核心
2023年第10期99-114,140,共17页
Surface Technology
基金
中央高校基本科研业务费项目中国民航大学专项(3122023047)。
关键词
荧光探针
涂层
机理
腐蚀
自预警
fluorescent probe
coating
mechanism
corrosion
self-warning
