Na_3Eu(DPA)_3-PC树脂的制备及其发光性能

Preparation and Fluorescence of Sodium Tris(pyridine dicarboxylato) Europate(Ⅲ) Incorporated in Polycarbonate Resin

根据稀土有机配合物 Na3Eu(DPA) 3(DPA:2 ,6-pyridine dicarboxylic acid)的发光强和热稳定性高的特点 ,采用加热方法将 Na3Eu(DPA) 3掺入 PC树脂中 ,制成发光塑料树脂 .其发光性能结果表明 ,Na3Eu(DPA) 3掺入 PC树脂后 ,仍保持稀土有机配合物原有的发光特性 ,制成的 Na3Eu(DPA) 3-PC树脂复合材料具有良好的发光性能 ,其发光强度与稀土有机配合物 Na3Eu(DPA) 3掺入的比例量有关 ,但没有一定的线性关系 .

The strong fluorescence and high thermal stability of sodium tris(pyridine dicarboxylato)europate(Ⅲ), Na 3Eu(DPA) 3, were used for modification of polycarbonate(PC) resin. The polycarbonate resin composite was prepared at 220 ℃ for 30 min under stirring. The excitation and emission spectra and thermogravimetric analysis results showed that the prepared Na 3Eu(DPA) 3 PC composite material retained the fluorescence characteristics and strong red emission of the Eu 3+ chelate and its fluorescence intensity was found to be increased with increase in the mass fraction of Na 3Eu (DPA) 3 in PC resin, but did not in linear relation.