Preparation method of water-based fluorescent paint

Abstract

The invention provides a preparation method of a water-based fluorescent paint. The method comprises the following steps of: by adopting a self-prepared ligand, diluting acrylic resin by using a defined amount of water and ethylene glycol or butyl cellosolve solvent until the viscosity is about 40mpa.s, adding a fluorescent pigment emulsion in the claim 3 under the condition of high-speed stirring, insulating heat for 30min at a temperature of 40-50 DEG C, adding a defoaming agent, a wetting dispersant, a multifunctional additive, a filler and the like, fully stirring, adding the wetting dispersant, a colloid modifying agent, an optical stabilizing agent and a thickening agent, sanding and grinding to obtain the water-based fluorescent paint, wherein the fineness of the water-based fluorescent paint is controlled to be 20-30mu m. The preparation method has the advantages that the process is simple, the yield is high, raw materials are easily available; and the ligand and a rare earth compound are used as the raw materials, and water is used as a dispersing agent, therefore the production cost is reduced, and the coating has the advantages of environment friendliness, high fluorescence intensity and excellent property.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and relates to a ligand synthesis and coating preparation method with high fluorescence yield. Background technique [0002] In recent years, Schiff bases and Schiff base metal complexes have also been applied to the research of organic electroluminescent devices (OLEDs) due to their good thermal stability and high fluorescence quantum efficiency. At present, the research and application of salicylaldehyde amide-like Schiff bases in OLEDs has been extensive, but the research on 3,5-dichlorosalicylaldehyde amide-like Schiff bases in OLEDs has been rarely reported. [0003] The fluorescence excitation and emission spectra were used to study H 2 The photophysical properties of L and ML, the results show that H 2 L has strong fluorescence; ZnL has strong fluorescence and good thermal stability (decomposition temperature reaches 424.2℃). After the ligand is coordinated with the rare ear...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of traditional fluorescent paints such as long reaction process, complex wastewater components, troublesome post-treatment, and high production costs, the invention discloses a ligand synthesized by itself, which has simple process, high yield, and easy-to-obtain raw materials. It is made of rare earth compounds and water as the main dispersant, which not only reduces the production cost, but also is environmentally friendly, and has excellent fluorescence intensity and high performance.

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