La3+对双配体温敏漆荧光性质的影响
Effect of La3+on Fluorescence Properties of Double Temperature Sensitive Paint
宋亚娇 1王洪刚 2高枫 1于洪翠 1刘景林1
作者信息
- 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
- 折叠
摘要
以La3+掺杂的噻吩甲酰基三氟内酮邻菲罗啉铕配合物(Eu(TTA)3phen)为发光探针分子,以聚甲基内烯酸甲酯(PMMA)为基质,利用自由基聚合作用制备了 La3+掺杂Eu(TTA)3phen/PMMA温敏漆.具有最佳稀土离子配比(Eu3+∶La3+=0.5∶0.5)的温敏漆Eu0.5La0.5(TTA)3phen/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火性质.此外,La3+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.Eu0.5La0.5(TTA)3phen/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.
Abstract
The La3+doped Eu(TTA)3phen/PMMA temperature sensitive paint was prepared by the radical po-lymerization using Eu(TTA)3phen as the probe molecule and polymethacrylate(PMMA)as the matrix.The tem-perature sensitive paint Eu0.5La0.5(TTA)3phen/PMMA with the optimal rare earth ion ratio(Eu3+∶La3+=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,La3+can improve the change rate of relative fluorescence intensity and the sensitivity of tem-perature measurement through synergistic effect.Therefore,as a new non-contact temperature sensitive coating,Eu0.5La0.5(TTA)3phen/PMMA temperature sensitive paint has potential applications in the temperature distribu-tion 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Key words
rare earth ions/temperature sensitive paint/fluorescent properties引用本文复制引用
基金项目
内蒙古自然科学基金项目(2023LHMS02005)
内蒙古自然科学基金项目(2019BS02009)
出版年
2024
NETL
NSTL
万方数据