Preparation and characterization of organic pigments and their fluorescence properties depending on bulk structure  

作　　者：Jie Du Rong Yang Changqing Fang Xing Zhou Shaofei Pan Wanqing Lei Jian Su Youliang Cheng Donghong Liu 

机构地区：[1]School of Mechanical and Precision Instrument Engineering,Xi'an University of Technology [2]Faculty of Printing,Packaging Engineering and Digital Media Technology,Xi'an University of Technology [3]Fuli Institute of Food Science,Zhejiang University [4]School of Materails Science and Engineering,Xi'an University of Technology

出　　处：《Journal of Materials Science & Technology》2018年第11期2218-2224,共7页材料科学技术（英文版）

基　　金：support provided by Programs for New Century Excellent Talents in University of Ministry of Education of China (Grant No.: NCET-12-1045);Shaanxi Programs for Science and Technology Development (Fund No.2010K01-096);Key Program for Innovation Team in Shaanxi Province, Ph.D. Innovation fund projects of Xi’an University of Technology (Fund No. 310-252071501);Program for Innovation Team in Xi’an University of Technology (Grant No. 108-25605T401)

摘　　要：Fluorescent pigments, based on the optical or electrooptical properties of dyes, are the main component in fluorescent coatings and inks. In this study, three kinds of dyes（Rhodamine B, Light Green SF Yellowish, Coumarin） with four different ratios（2.5 wt%, 3 wt%, 3.5 wt%, 4 wt%） were employed as luminophor,and the melamine-formaldehyde（MF） resin was used as curing resin to prepare fluorescent pigments in different color. Fourier transform infrared spectroscopy and X-ray diffractometry were carried out to analyze the structure of the fluorescent pigments. Scanning electron microscopy and particle size distribution were used to present the morphology of fluorescent pigments. UV–vis and fluorescence spectrum were used to demonstrate the optical properties. It can be concluded that, coumarin pigments possessed consecutive structure in MF resin while rhodamine B might be the best for the preparation of printing inks among the three kinds of dyes from the view of particle size. The TG results presented that all the pigments showed good thermal stability, which might possess potential application in high speed printing industry.Fluorescent pigments, based on the optical or electrooptical properties of dyes, are the main component in fluorescent coatings and inks. In this study, three kinds of dyes（Rhodamine B, Light Green SF Yellowish, Coumarin） with four different ratios（2.5 wt%, 3 wt%, 3.5 wt%, 4 wt%） were employed as luminophor,and the melamine-formaldehyde（MF） resin was used as curing resin to prepare fluorescent pigments in different color. Fourier transform infrared spectroscopy and X-ray diffractometry were carried out to analyze the structure of the fluorescent pigments. Scanning electron microscopy and particle size distribution were used to present the morphology of fluorescent pigments. UV–vis and fluorescence spectrum were used to demonstrate the optical properties. It can be concluded that, coumarin pigments possessed consecutive structure in MF resin while rhodamine B might be the best for the preparation of printing inks among the three kinds of dyes from the view of particle size. The TG results presented that all the pigments showed good thermal stability, which might possess potential application in high speed printing industry.

关 键 词：FLUORESCEIN Microstructures and properties Optical properties Thermal properties 

分 类 号：TQ616.8[化学工程—精细化工]