A kind of cationic styrene-acrylic primer emulsion and preparation method thereof

Abstract

A cationic styrene-acrylic primer emulsion, which includes water, styrene, n-butyl acrylate, isooctyl acrylate, cationic emulsifier, high-density crosslinking monomer, hydrophilic monomer, azo initiator, the above components In terms of parts by mass, they are: 60 parts of water, 5-20 parts of styrene, 5-20 parts of n-butyl acrylate, 5-20 parts of isooctyl acrylate, 1-10 parts of cationic emulsifier, high-density cross-linking unit 1-5 parts of monomer, 1-5 parts of hydrophilic monomer, 1-5 parts of azo initiator. The cationic styrene-acrylic primer emulsion of the present invention has excellent sealing performance on the wall.

Description

technical field [0001] The invention relates to the processing field of architectural coatings, in particular to a cationic styrene-acrylic primer emulsion with a stronger wall base and a preparation method thereof. Background technique [0002] With the continuous development of the economy and the gradual advancement of the urbanization process, there are more and more high-rise buildings in China, and the closure of the wall base of the building's outer wall has always been a technical difficulty in the construction industry. Traditional wall-based paints usually use anionic primer emulsions, but there are two major technical defects in the use of anionic primer emulsions. First, there is almost no reaction ability between the anionic primer emulsion and the salt and alkali released from the wall cement, and it usually only has a sealing effect on the wall, so when encountering freshly constructed cement walls or salt and alkali concentration The anionic primer emulsion ...

AI Technical Summary

Problems solved by technology

First, there is almost no reaction ability between the anionic primer emulsion and the salt and alkali released from the wall cement, and it usually only has a sealing effect on the wall, so when encountering freshly constructed cement walls or salt and alkali concentration The anionic primer emulsion cannot fully protect the substrate on taller walls, resulting in the walls being prone to salting out or pan-alkali

Second, the anionic primer emulsion can only seal the wall, and it only has a covering effect on the salt and alkali released from the wall. Therefore, on some loose putty-based walls, the traditional anionic primer The sealing effect of paint emulsion is very limited, and its water resistance is poor, which will lead to peeling, blistering and peeling of the wall

Images