A kind of synthetic method of modified bisphenol A epoxy acrylate

Abstract

The invention discloses a synthesis method of modified bisphenol A epoxy acrylate. The method comprises the following steps: mixing and heating bisphenol A epoxy resin, 1,3-propylene glycol, a catalyst and a polymerization inhibitor, adding acrylic acid after reacting at 80-90 DEG C for 1-2 hours, and insulating a product at 100-120 DEG C for 3-5 hours, thus obtaining modified bisphenol A epoxy acrylate, wherein the dosage of 1,3-propylene glycol is 0.1-0.4 times the weight of bisphenol A epoxy resin, and the dosage of acrylic acid is 10-30% of the weight of bisphenol A epoxy resin. Modified bisphenol A epoxy acrylate synthesized by the method obviously improves the flexibility and yellowing resistance of products, reduces the viscosity of substances, expands the application fields of the products and can be applied to photo-curing ink, plastic coatings and the like.

Description

technical field

[0001] The invention belongs to the field of resin synthesis, in particular to a method for synthesizing modified bisphenol A epoxy acrylate. Background technique

[0002] Among many epoxy acrylates, bisphenol A type epoxy acrylate is the fastest curing speed, the cured film has high hardness, high gloss, excellent chemical resistance, good heat resistance and electrical properties, and its The source is convenient and the price is cheap, and it is widely used in other light and heat curing coating systems. However, the aromatic ring in the molecular structure of bisphenol A epoxy acrylate makes the molecule have a rigid structure, insufficient flexibility, high brittleness, and high viscosity, which affects the coating. Construction viscosity and rheology, light aging resistance and flower degeneration resistance. Therefore, researchers have made some efforts and attempts to address the above problems. Common methods such as introducing fatty acid modified ...

Images