A UV-cured composite containing a rare earth complex was prepared for this study. First, the photoluminescent terbium complex was synthesized with a long-chain unsaturated fatty acid (10-Undecenoic acid) by a solution precipitation method, resulting in the 10-UA-Tb(III) complex. Its structure was proven by FTIR, elemental analysis, XRD, and TGA. The results indicated that the organic acid ligand successfully coordinated with the Tb³⁺ ion and that the complex had a chelate bidentate structure. The emission spectrum of the 10-UA-Tb(III) complex indicated that the complex can emit a bright green light with the unique luminescence of the Tb³⁺ ion. Furthermore, the luminescence properties of complexes with different ratios of Tb³⁺ and ligand were studied, and the ratio of Tb³⁺ and the ligand had an obvious impact on the luminescence intensity of the 10-UA-Tb(III) complex. Subsequently, the prepared rare earth complex was doped into a UV-cured coating in different proportions to obtain a UV-cured composite. The morphology of the rare earth UV-cured composite was observed by SEM. The images showed that the rare earth complex was dispersed uniformly in the polymer matrix. Moreover, the composites could emit fluorescence. Additionally, it has good thermal stability and compatibility with the resin. Therefore, these composites should have potential applications in UV curable materials, such as luminescence coatings.

中文翻译：

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新型10-十一碳烯酸配合物用于紫外光固化涂料的制备与表征

为该研究制备了包含稀土配合物的紫外线固化复合材料。首先，通过溶液沉淀法与长链不饱和脂肪酸（10-十一碳烯酸）合成光致发光ter络合物，得到10-UA-Tb（III）络合物。FTIR，元素分析，XRD和TGA证明了其结构。结果表明，有机酸配体成功地与Tb ³⁺离子配位，并且该配合物具有螯合的二齿结构。10-UA-Tb（III）配合物的发射光谱表明，该配合物可以发出具有Tb ³⁺离子独特发光的亮绿色光。此外，不同比例的Tb ³⁺配合物的发光特性研究了Tb ³⁺与配体的比例对10-UA-Tb（III）配合物的发光强度有明显的影响。随后，将制备的稀土配合物以不同比例掺入UV固化涂层中以获得UV固化复合材料。通过SEM观察稀土UV固化的复合物的形态。图像显示稀土配合物均匀地分散在聚合物基质中。而且，复合材料可以发射荧光。另外，它具有良好的热稳定性和与树脂的相容性。因此，这些复合材料应在紫外线固化材料（例如发光涂料）中具有潜在的应用。