Acrylate resin solution for water latex paint and its preparation method

Abstract

The invention relates to an acrylate resin solution for a water latex paint and its preparation method. The invention is characterized in that the acrylate resin solution for the water latex paint mainly comprises butyl cellosolve, allyl methacrylate, ethyl acrylate, methyl methacrylate, acrylic acid, methacrylic acid-2-ethylhexonate, azo-diformaldehyde pentanenitrile, tert-dodecyl mercaptan, etc. A coating prepared from the acrylate resin solution for the water latex paint has the characteristics of high glossiness, an excellent surface state, good water resistance, yellowing resistance, etc.

Description

technical field [0001] The invention relates to an acrylic ester resin solution for water-emulsion paint and a preparation method thereof, belonging to the field of chemical paint protection. Background technique [0002] At present, the emulsion polymers used in water-based latex coatings mainly include polyurethane and acrylate-modified acrylate random copolymers. Usually, the molecular structure of water-based polyurethane contains a carbamate structure. Methylol acid undergoes polycondensation reaction and is prepared through a self-emulsification process. According to the different monomers used, the water-based latex paint film prepared by water-based polyurethane is usually high in hardness, wear resistance and scratch resistance, but the cost is high, and in There are still deficiencies in performances such as water resistance and yellow denaturation resistance. There is also an acrylate interpenetrating network that can be prepared by grafting acrylate polymers on ...

AI Technical Summary

Problems solved by technology

[0002] At present, the emulsion polymers used in water-based latex coatings mainly include polyurethane and acrylate-modified acrylate random copolymers. Usually, the molecular structure of water-based polyurethane contains a carbamate structure. Methylol acid undergoes polycondensation reaction and is prepared through a self-emulsification process. According to the different monomers used, the water-based latex paint film prepared by water-based polyurethane is usually high in hardness, wear resistance and scratch resistance, but the cost is high, and in There are still deficiencies in performance such as water resistance and yellow denaturation resistance

There is also an acrylate interpenetrating network that can be prepared by grafting acrylate polymers on polyurethane chains by emulsion polymerization of acrylate monomers in the presence of hydrophilic polyurethane prepolymers. In addition to maintaining the excellent mechanical properties of the polyurethane coating film, it can also improve its water resistance resin coating. It has excellent process performance, mechanical properties and yellowing resistance, but its production cost is too high, so it is difficult to be accepted by the market at present

Acrylate liquid polymer is prepared by copolymerization of two or more acrylate monomers. The prepared coating film has excellent light stability, high filler compatibility, and strong adhesion to the coated object, but generally has low hardness. Disadvantages such as poor adhesion at high temperature