天津工业大学学报2024，Vol.43Issue(4)：12-18,7.DOI:10.3969/j.issn.1671-024x.2024.04.003
高湿度下具有荧光指示功能的PET复合膜的制备与性能
Preparation and performance of PET composite membrane with fluorescence indication function in high humidity environment
摘要
Abstract
In order to prepare a film that can continuously emit light in a high humidity and fogging environment,a new rare earth luminescent complex with excellent hydrophobic function and PMMA was uniformly dispersed to make a coating solution based on PET film,and PET-PMMA luminescent composite film was prepared by coating wiping film technology,which was tested and characterized.The results of fluorescence spectrophotometer and confocal microscopy test show that the PET light-emitting film prepared when the luminescent material accounts for 1.50％of the mass fraction of polymer PMMA has good surface uniformity and the best fluorescence performance,and the fluorescence intensity can reach 9 979 a.u.PET-PMMA luminescent composite films can show the character-istic fluorescence emission peaks of Eu3+in the starting light material at different excitation wavelengths.At the same time,the optimal ultraviolet excitation wavelength of the luminescent composite film was 350 nm,and the luminescent composite film has good color purity at the optimal excitation wavelength.By comparing the fluores-cence intensity values of the luminescent composite film immersed in aqueous solution for one week,it was found that the fluorescence intensity loss of the sample was only 5％under the premise that the fluorescence loss of the material was only 1.50％.This shows that the disadvantages of the prepared luminescent composite film being easily quenched when exposed to water have been greatly improved,which provides an important basis for the long-term stable fluorescence indication function of PET agricultural film in humid and foggy environment.关键词
PET复合膜/有机稀土发光材料/荧光指示/高湿度Key words
PET composite film/organic rare earth luminescent materials/fluorescence indication/high humidity分类
通用工业技术引用本文复制引用
西鹏,褚君广..高湿度下具有荧光指示功能的PET复合膜的制备与性能[J].天津工业大学学报,2024,43(4):12-18,7.基金项目
天津市自然科学基金重点资助项目(18JCZDJC38300) （18JCZDJC38300）
