杜娟,魏士钧,石玉超,刘礼平,汪鸿宇,宋海鹏.荧光探针在涂层中的应用及机理研究进展[J].表面技术,2023,52(10):99-114, 140.
DU Juan,WEI Shi-jun,SHI Yu-chao,LIU Li-ping,WANG Hong-yu,SONG Hai-peng.Progress of Application and Mechanism of Fluorescent Probes in Coating[J].Surface Technology,2023,52(10):99-114, 140
荧光探针在涂层中的应用及机理研究进展
Progress of Application and Mechanism of Fluorescent Probes in Coating
投稿时间:2022-07-25  修订日期:2022-11-12
DOI:10.16490/j.cnki.issn.1001-3660.2023.10.007
中文关键词:  荧光探针  涂层  机理  腐蚀  自预警
英文关键词:fluorescent probe  coating  mechanism  corrosion  self-warning
基金项目:中央高校基本科研业务费项目中国民航大学专项(3122023047)
作者单位
杜娟 中国民航大学,天津 300300 
魏士钧 中国民航大学,天津 300300 
石玉超 北京机械设备研究所,北京 100854 
刘礼平 中国民航大学,天津 300300 
汪鸿宇 中国民航大学,天津 300300 
宋海鹏 中国民航大学,天津 300300 
AuthorInstitution
DU Juan Civil Aviation University of China, Tianjin 300300, China 
WEI Shi-jun Civil Aviation University of China, Tianjin 300300, China 
SHI Yu-chao Beijing Machine and Equipment Institute, Beijing 100854, China 
LIU Li-ping Civil Aviation University of China, Tianjin 300300, China 
WANG Hong-yu Civil Aviation University of China, Tianjin 300300, China 
SONG Hai-peng Civil Aviation University of China, Tianjin 300300, China 
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中文摘要:
      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pH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。
英文摘要:
      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 released after the microcapsule was damaged under the action of mechanical damage, to indicate the occurrence of early corrosion. The mechanism of fluorescent probe for thermal barrier coating was mainly under the excitation of ultraviolet/visible light source, the phosphorescent layer generated a phosphorescence signal with characteristic temperature correlation, and the temperature information of the position of the phosphorescent layer was obtained by measuring the phosphorescence signal, so as to measure the temperature of the surface, interior and interface of the ceramic base/adhesive layer of the thermal barrier coating. The mechanism of thermal color-changing anti-counterfeiting coating was to add substances whose color changes with temperature to the coating; The mechanism of photochromic anti-counterfeiting coating was to add photochromic or photoactivated compounds to the coating; The mechanism of moisture-sensitive color-changing anti- counterfeiting coating was to add substances whose color changed with humidity to the coating; The mechanism of pressure- sensitive color-changing anti-counterfeiting coating was to add pressure-induced chromic compounds or microcapsules to the coating. According to the current research results, the application of fluorescent probes in the field of coatings still faces the following problems. In the field of anti-corrosion coatings, future research should focus on the integration of self-warning and self-healing functions, and the preparation of composite coatings with "self-warning/self-repair" dual functions. In the field of thermal barrier coatings, the upper limit of fluorescence temperature measurement still needs to be widened; The stability of temperature measurement still needs to be further improved; It is required to ensure the stability of the mechanical properties of the coating structure in the service environment. In the field of anti-counterfeiting encryption coatings, it is necessary to further explore and solve the "premature fluorescence phenomenon", and at the same time be able to cope with changing stimuli and improve the practical application of anti-counterfeiting encryption coatings.
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