具有光致变色功能的长余辉发光再生纤维素纤维的光学性能  

Optical Performaces of Photochromic and Long Afterglow Luminescent Regenerated Cellulose Fiber

作　　者：史晨[1] 龙啸云[1] 侯雪斌 晋阳[1] 葛明桥[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122

出　　处：《高分子材料科学与工程》2017年第6期95-99,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21171074/B010201;51503082);江苏高校优势学科建设工程资助项目(1065211532080020)

摘　　要：采用物理共混的方法将光致变色染料和长余辉发光粉与纤维进行混合,经湿法纺丝后,制备出具有光致变色功能的纤维素长余辉发光纤维。利用扫描电镜、电脑测配色对比仪、激发发射光谱仪、余辉测试仪等仪器对样品进行表征。结果表明,光致变色微胶囊与再生纤维素纤维具有较好的相容性。经紫外-可见光源激发后,在标准光源下,纤维反射呈现出紫红色,最大K/S值为0.78,在黑暗环境下,纤维的发光呈黄绿色。激发发射光谱表明,在黑暗环境中,纤维的发射峰在510nm左右,发光性能不受光致变色染料影响。余辉测试表明,纤维的初始发光亮度减少14%,衰减速率减小,余辉寿命不变。The photochromic compound and luminescent partical were mixed by physical blending. Then, the photochromic fiber was prepared by the method of wet-spinning. The prepared fiber samples were characterized by SEM, colour measurement, photoluminescence and persistence luminescent test. The experimental results show that photochromic mircocapsule are compatible with regenerated cellulose fiber. The prepared fiber has smooth appearance. Under the ultraviolet-visible light source excitation, the fiber appears purple with the K/S value of 0.78. The fibers exhibit yellow-green color in the dark. Photoluminescence spectroscopy shows that in the dark environment, the emitting peak of the fiber is about 510 nm. Luminous performance is not affected by optical variable dye. The afterglow test shows that initial luminous brightness reduces by 14%, and the attenuation rate alto decreases, but the afterglow life unchanges.

关 键 词：光致变色 长余辉 再生纤维素纤维 湿法纺丝 

分 类 号：TQ341.9[化学工程—化纤工业]