La^(3+)对双配体温敏漆荧光性质的影响  

Effect of La^(3+)on Fluorescence Properties of Double Temperature Sensitive Paint

作　　者：宋亚娇 王洪刚 高枫 于洪翠 刘景林[1] Song Yajao;Wang Honggang;Gao Feng;Yu Hongcui;Liu Jinglin(College of Chemistry and Materials Science,Inner Mongolia Key Laboratory of Chemistry for Natural Products and Synthesis for Functional Molecules,Inner Mongolia Key Laboratory of Carbon Nanomaterials,Inner Mongolia Minzu University,Tongliao 028043,China;Zhalute No.1 High School,Tongliao 029100,China)

机构地区：[1]内蒙古民族大学化学与材料学院,内蒙古自治区天然产物化学及功能分子合成重点实验室,内蒙古自治区纳米碳材料重点实验室,内蒙古通辽028000 [2]扎鲁特旗第一中学,内蒙古通辽029100

出　　处：《中国稀土学报》2024年第5期918-925,I0003,共9页Journal of the Chinese Society of Rare Earths

基　　金：内蒙古自然科学基金项目(2023LHMS02005,2019BS02009)资助。

摘　　要：以La^(3+)掺杂的噻吩甲酰基三氟丙酮邻菲罗啉铕配合物(Eu(TTA)3phen)为发光探针分子,以聚甲基丙烯酸甲酯(PMMA)为基质,利用自由基聚合作用制备了La^(3+)掺杂Eu(TTA)3phen/PMMA温敏漆。具有最佳稀土离子配比(Eu^(3+):La^(3+)=0.5:0.5)的温敏漆Eu_(0.5)La_(0.5)(TTA)_(3)phen/PMMA在614 nm附近具有最强红光发射,在20~60℃温度范围内具有较好的温度猝灭性质。此外,La^(3+)能够通过协同效应提高温敏漆的相对荧光强度变化率和测温灵敏度。Eu_(0.5)La_(0.5)(TTA)_(3)phen/PMMA温敏漆作为一种新型非接触式温度敏感涂料,在大面积固体场温度分布测量、尤其是飞行器周围复杂流动气体力学行为的深入研究方面具有潜在应用价值。The La^(3+)doped Eu(TTA)3phen/PMMA temperature sensitive paint was prepared by the radical polymerization using Eu(TTA)_(3)phen as the probe molecule and polymethacrylate(PMMA)as the matrix.The temperature sensitive paint Eu_(0.5)La_(0.5)(TTA)_(3) phen/PMMA with the optimal rare earth ion ratio(Eu^(3+):La^(3+)=0.5∶0.5)has strong red emission near 614 nm and good temperature quenching properties in the temperature range of 20~60℃.In addition,La^(3+)can improve the change rate of relative fluorescence intensity and the sensitivity of temperature measurement through synergistic effect.Therefore,as a new non-contact temperature sensitive coating,Eu_(0.5)La_(0.5)(TTA)_(3) phen/PMMA temperature sensitive paint has potential applications in the temperature distribution measurement of large area solid field,especially in the further study of the mechanical behavior of complex flow gas around the aircraft.

关 键 词：稀土离子 温敏漆 荧光性质 

分 类 号：O614.33[理学—无机化学]