PET发光复合膜的制备工艺与荧光性能优化  

Preparation process and optimization of fluorescence performance of PET luminescent composite film

作　　者：西鹏[1] 刘凯[1] 王祎晨 程博闻[1] XI Peng;LIU Kai;WANG Yichen;CHENG Bowen(School of Material Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学材料科学与工程学院,天津300387

出　　处：《天津工业大学学报》2023年第5期13-18,共6页Journal of Tiangong University

基　　金：天津市自然科学基金重点资助项目(18JCZDJC38300)。

摘　　要：为制备具有良好光致发光功能的聚对苯二甲酸乙二醇酯(PET)发光复合膜,以PET薄膜为基材,通过物理喷涂技术将荧光强度较好的有机稀土发光材料均匀分布在PET膜表面,制备PET发光膜;在PET发光膜表面引入不同聚合物的防护功能层,制备PET发光复合膜,并进行荧光性能测试与表征。结果表明:发光喷涂溶液质量分数为1.50%时所制备的PET发光膜具有最佳的荧光性能,且发光材料在膜表面分散均匀;选用PVDF为防护功能层所制备的PET-PVDF发光复合膜荧光强度最高,达3158 a.u.,而且在不同激发波长下PETPVDF发光复合膜均可以显现出发光材料中Eu^(3+)的特征荧光发射峰;PET-PVDF发光复合膜的最佳紫外激发波长为301 nm,在最佳激发波长下PET-PVDF发光复合膜具有较好的色纯度,可以显现出靓丽的红光。To prepare polyethylene terephthalate(PET)luminescent composite film with good photoluminescence function,the PET film was used as the base material,the organic rare earth luminescent materials with good fluorescence intensity were evenly distributed on the surface of PET film through a new physical spraying technology to prepare PET luminescent film.The protective functional layers of different polymers were introduced on the surface of PET luminescent film to prepare PET luminescent composite film,and the fluorescence properties were tested and characterized.The results show that the PET luminescent film prepared with the mass fraction of luminescent spraying solution of 1.50%has the best fluorescence performances,and the luminescent materials are evenly dispersed on the film surface.The PET-PVDF luminescent composite film prepared with PVDF as the protective functional layer has the highest fluorescence intensity of 3158 a.u.,and the PET-PVDF luminescent composite film can show the characteristic fluorescence emission peak of Eu^(3+) in the luminescent material at different excitation wavelengths.At the same time,the optimal UV excitation wavelength of PET-PVDF luminescent composite film is 301 nm.At the optimal excitation wavelength,it has good color purity and shows beautiful red light.

关 键 词：聚苯二甲酸乙二醇酯(PET) 稀土发光材料 发光复合膜 喷涂 荧光性能 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]