Acrylic acid acidized polyacrylate capable of realizing ultraviolet curing as well as preparation method and application of acrylic acid acidized polyacrylate

Abstract

The invention discloses acrylic acid acidized polyacrylate capable of realizing ultraviolet curing as well as a preparation method and an application of acrylic acid acidized polyacrylate. Single functional monomers including MMA (methyl methacrylate), BA (butyl acrylate) and HEMA (hydroxyethyl methylacrylate) and bifunctional monomers including GMA (glycidyl methacrylate) are adopted for copolymerization, polyacrylate resin is obtained, and various properties such as weather fastness, film-forming property, water resistance, solvent resistance and the like of the polyacrylate resin are improved. Acrylic acid and hydroxyl as a lateral group contained in main chains of the polyacrylate resin are adopted for acidification, so that the grafting density of double bonds can be greatly increased, part of hydroxyl is reserved in a polyacrylate copolymer through adjustment of the acidification degree, the copolymer has a higher curing speed, has quite excellent dispersing and stabilizing effects on pigments and has outstanding functions in the aspect of photo-curing printing ink configuration.

Description

technical field [0001] The invention relates to the technical field of polyacrylate preparation, and mainly relates to an ultraviolet-curable acrylic acidified polyacrylate and a preparation method and application thereof. Background technique [0002] The main chain of polyacrylate is a simple C-C single bond structure, with high activation energy, good stability, and large deformation ability, so this type of oligomer has very good yellowing resistance, good flexibility and resistance Solvent. The prepolymer has a relatively high relative molecular mass. Under reasonable functionality, its volume shrinkage before and after photocuring is small, the molecular polarity is low, and various functional groups can also be introduced, so it is suitable for various groups. All materials have good adhesion, but their mechanical strength and hardness are very low, their acid and alkali resistance is poor, and their viscosity is very high, even in solid form. [0003] Therefore, th...

AI Technical Summary

Problems solved by technology

The prepolymer has a relatively high relative molecular mass. Under reasonable functionality, its volume shrinkage before and after photocuring is small, the molecular polarity is low, and various functional groups can also be introduced, so it is suitable for various groups. All materials have good adhesion, but their mechanical strength and hardness are very low, their acid and alkali resistance is poor, and their viscosity is very high, even in solid form.

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