High-alcohol-resistance water-soluble acrylic resin and preparation method thereof

Abstract

The invention discloses high-alcohol-resistance water-soluble acrylic resin and a preparation method thereof. The high-alcohol-resistance water-soluble acrylic resin comprises the following components in parts by weight: 3-5 parts of a special monomer, 8-12 parts of methyl methacrylate, 4-8 parts of butyl acrylate, 17-20 parts of styrene, 3-7 parts of acrylonitrile, 5-8 parts of methacrylic acid, 8-15 parts of butyl methacrylate, 1-2 parts of an initiator, 25-30 parts of propylene glycol monomethyl ether and 10-15 parts of industrial ethanol. The preparation method comprises the following steps: (1) adding propylene glycol monomethyl ether into a reaction kettle under the protection of inert gas, and then heating; (2) mixing methyl methacrylate, butyl acrylate, styrene, dodecyl methacrylate, acrylonitrile, butyl methacrylate, methacrylic acid and part of the initiator to obtain a mixed solution; and (3) dropwise adding the mixed solution into a reaction kettle, adding the residual initiator after reaction, cooling, and adding industrial ethanol to obtain the high-alcohol-resistance water-soluble acrylic resin. After the high-alcohol-resistance water-soluble acrylic resin is dried to form a film, the alcohol resistance is greatly improved, and the high-alcohol-resistance water-soluble acrylic resin can resist over 200 times of alcohol wiping.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a highly alcohol-resistant water-soluble acrylic resin and a preparation method thereof. Background technique [0002] Acrylic resin is a very important type of coating resin. Its synthesis process is highly controllable, and it has excellent weather resistance and pigment dispersibility, and its proportion in coating resin is increasing. There is a great demand for glass products in domestic use, and the requirements for glass exterior coating are also getting higher and higher. Generally, high requirements are mainly in the wine bottle and cosmetics markets. These products are often exposed to alcohol solvents, which are resistant to Alcohol requirements are higher. With the continuous enhancement of people's awareness of environmental protection, water-based coatings have become the main direction of coating development. However, the current water-based coatings ha...

AI Technical Summary

Problems solved by technology

With the continuous enhancement of people's awareness of environmental protection, water-based coatings have become the main direction of coating development. However, the current water-based coatings have poor alcohol resistance and cannot meet the increasing application requirements.