Study on the Properties and Synthesization of Rare Earth Luminescence Material Using in Fluorescence Fibre

Study on the Properties and Synthesization of Rare Earth Luminescence Material Using in Fluorescence Fibre
　　The study of rare earth complexes luminescence, being the cross science of inorganic materials luminescence, organic materials luminescence and organism luminescence, is very important for fundamental and applied research. The rare earth polymer materials have attracted considerable interests of they assume both good luminescent characteristics and high color purity of rare earths and the excellent machinability of polymers. There are two preparation methods: (1) organic rare earth complex was doped into polymer to form rare earth-doped polymer. (2) rare earth complex was linked into the chain of the polymer to form rare earth-boding polymer, then polymerize with other organic Magnetic lifter monomer to form luminescence co-polymer.This paper use 4-Methylbenzoic acid and 1, 10-Phennathroline for complex, the organic nano-rare earth luminescence material was synthesized. And prepare the PP luminescence fibre.
　　The structure and the property of the rare earth luminescence material and the luminescence fibre were characterized by elemental analysis, FT-IR spectra, DSC, TG and TEM. The results show that the diameter of the organic rare earth material was only 100nm with steady structure, excellent thermo and fluorescence property. The rare earth ion was encircle by the organic part and disperse uniformity in the PP fibre, and the addition of the rare earth material don’t have an influence on the mechanic and thermo property, but it can short the time of crystal time. The luminescence property of the PP fibre was excellent, and the luminescence intensity enhanced with the rate increase of the rare earth http://www.999magnet.com/ material.In this paper, we synthesize a series of rare earth complex using benzoic acid ramification contain different substitute group or the same substitute group in different position for first time, and the luminescence property of the rare earth material were studied. The results show that the benzoic acid ramification was more easier to coordinate with rare earth ion when its acidity was stronger; and the fluorescence effect of rare earth material synthesized with para-position ligand are better than the ortho-position and meta-position ligand’s. Further more, the fluorescence properties of rare earth material was best when the Ph=7, the ratio of Ln3+、ligand、phen is 1:3:1.