Water-based Acrylic Resins
Acrylic resins are the product of polymerization of acrylic, methacrylic acids and their derivatives, the difference between methacrylate acid and acrylic acid is that in methacrylic acid, the methyl group is sitting instead of the carbon hydrogen atom of acrylate. In general, acrylic resins are divided into two main groups: thermoplastic and thermoset.
1- Thermoset acrylic resins
Thermoset acrylic resins are homopolymer or copolymer esters of acrylic acid or methacrylic acid that cross-link with itself or with another copolymer that has an active agent, hydroxyl carboxyl, methylol amide, or epoxy under heat and form a hard film. they give Thermoset acrylic paints not only have good gloss and gloss retention, but also have a suitable solid percentage in the sprayable solution and have more chemical resistance than thermoplastic acrylics, although their external resistance may not be as good as thermoplastic resins.
2- Thermoplast acrylic resins
These resins are homopolymers or copolymers of acrylic acid or methacrylic acid esters, and since acrylic and methacrylic monomers have good miscibility, they can be copolymerized in any ratio. Thermoplast acrylic resins have a structure similar to thermoset resins, with the difference that, unlike them, they do not have any active groups, and in addition, they have a relatively high molecular weight, and at the same time, they become dry and hard by the mechanism of solvent evaporation.