以成纤聚合物PET为纤维基材,添加SrAl2O4:Eu2+,Dy3+发光材料制备了5种具有不同色相的稀土铝酸锶夜光涤纶纤维样品,采用X射线衍射仪、荧光光谱仪、长余辉测试仪、微机热释光剂量仪表征了纤维的晶相结构、激发发射光谱、余辉衰减规律和热释光性能,着重阐述了纤维余辉衰减规律和陷阱分布情况.结果表明,无机透明色料对纤维的余辉衰减规律影响不大,但样品的余辉初始亮度不同,呈现白色纤维＞绿色纤维＞黄色纤维＞蓝色纤维＞红色纤维,添加色料的色相与色光越接近,余辉亮度越高.另外,无机透明色料对热释峰发光强度产生一定的影响,白色、黄色和绿色夜光纤维的E值相对较小,而蓝色和红色夜光纤维的E值相对较大,与纤维余辉曲线结果基本吻合.
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