再生纤维素荧光膜  

Fluorescent Films of Regenerated Cellulose

作　　者：蒋昌武[1] 何喜庆[1] 吴琳俐[1] 陈纯[1] 杨光[1] 张俐娜[1] 

机构地区：[1]武汉大学环境科学系,武汉大学化学系

出　　处：《应用化学》1995年第1期30-33,共4页Chinese Journal of Applied Chemistry

摘　　要：由纤维素铜氨溶液与钒磷酸钇：铂，铝酸钡镁：铕铂，硫比锌镉：铜和硅酸锌：锰荧光粉混合分别制备了４种再生纤维素荧光膜，研究了这些膜的荧光光谱、相对荧光强度、结晶度及力学性能变化．实验结果表明当添加５％荧光粉时，含钒磷酸钇：铕，铝酸钡镁：铕和硫化锌镉：铜的膜仍保持荧光粉的结晶峰，在紫外光照射下分别发出红、蓝、黄荧光，其相对荧光强度依次为８１％、７９％及７４％．当膜含５％硅酸锌：锰时，在紫外光照射下发射微弱的绿光，相对荧光强度显著下降，并且荧光粉的结晶被破坏，然而该再生纤维素膜的结晶度和力学强度却增高。Four kinds of fluorescent films of regenerated cellulose were prepared by mixingcellulose cuoxam solution and fluorescent powders including Y(PV)O_4: Eu , BaMg_(2)Al_(16)O_27:Eu,(Zn,Cd)S: Cu and Zn_(2)SiO_4 :Mn,respectively. The fluorescence spectra, fluores-cence intensity,degree of crystallinity and mechanical property of these films have been stud-ied.The resuIts showed that the peak of crystallinity of fluorescent powder remained un-changed when the film had 5wt%of fluorescent powder of Y(PV)O_4: Eu,BaMg_(2)Al_(16)O_27:Eu and(Cd,Zn)S:Cu under inradiation of ultraviolet light these films emitted strong red,blue,and yellow light with the fluorescence intensities being 81%,79%and 74%,respec-tively. However, film containing 5%Zn_(2)SiO_4:Mn only emitted slightly green light and thestructure of crystal of the fluorescent powder in the film was brocken and the degree of crys-tallinity and mechanical preperty of this film increased significantly.

关 键 词：再生 纤维素 荧光粉 荧光光谱 相对荧光强度 

分 类 号：TQ341.4[化学工程—化纤工业] TQ422