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以氧化铕(Eu_2O_3)、氧化镝(Dy_2O_3)、氧化钇(Y_2O_3)、氧化钕(Nd_2O_3)、甲基丙烯酸(MAA)和邻菲罗啉(phen)为原料制备了Eu(MAA)_3phen,Eu_(0.5)Dy_(0.5)(MAA)_3phen,Eu_(0.5)Y_(0.5)(MAA)_3phen和Eu_(0.5)Nd_(0.5)(MAA)_3phen探针分子,并将不同探针分子分别加到甲基丙烯酸甲酯(MMA)中,在过氧化苯甲酰(BPO)引发下聚合,制得一系列温敏漆样品。采用红外光谱仪、能量色散谱仪、荧光光谱仪和扫描电子显微镜对探针分子的结构、发光性能、形貌和温敏漆的温度猝灭性能进行了表征,研究了掺杂不同稀土离子对探针分子发光性能和温敏漆温度猝灭性能的影响。结果表明,稀土离子(RE~(3+))与MAA配位,phen参与了配位,且掺杂离子未改变Eu(MAA)_3phen结构,Y~(3+)对Eu(MAA)_3phen发光具有敏化作用,Dy~(3+),Nd~(3+)对Eu(MAA)_3phen发光具有不同程度的猝灭作用,所制备的温敏漆在25~65℃范围内均具有良好的温度猝灭性能。综合分析得出,以Eu_(0.5)Y_(0.5)(MAA)_3phen为探针分子的温敏漆具有更好的应用前景。
Eu (MAA) 3phen, Eu_2O_3 and Eu_3P_3 were prepared from europium oxide (Eu_2O_3), Dy 2 O_3, Y_2O_3, Nd_2O_3, MAA and phen. (0.5) Dy_ (0.5) MAA_3phen, Eu_ (0.5) Y_ (0.5) (MAA) _3phen and Eu_ (0.5) Nd_ (0.5) (MAA) _3phen probe molecules were prepared and different probe molecules were added to Methyl methacrylate (MMA), in the polymerization of benzoyl peroxide (BPO) initiated a series of temperature-sensitive paint samples. The structure, luminescent properties, morphology and temperature quenching performance of the probe were characterized by infrared spectroscopy, energy dispersive spectroscopy, fluorescence spectroscopy and scanning electron microscopy. The effects of different rare earth ions on the probe Molecular Luminescence Properties and Temperature Quenching Properties of Temperature Sensitive Coatings. The results show that rare earth ions (RE ~ (3+)) coordinate with MAA, and phen is involved in coordination, and the Eu (MAA) 3phen structure is not changed by doping ions. Has sensitization effect, Dy ~ (3 +) and Nd ~ (3+) quench Eu (MAA) _3phen with different degrees of quenching. The prepared temperature-sensitive paint has good Temperature quenching performance. The comprehensive analysis shows that the thermo-sensitive paint with Eu_ (0.5) Y_ (0.5) (MAA) _3phen as probe molecule has a better application prospect.