Acrylic emulsion thickener is an economical and versatile alkaline swelling thickener with excellent thickening properties. It has high molecular weight, obvious thickening, good anti-settling and anti-mildew, and is easy to use. Splashability and sag can be improved. In an easy-to-use emulsion form, it is designed to completely or partially replace cellulose thickeners in a variety of aqueous systems, providing a thickening effect in the medium shear rate range and a good balance between sag resistance and leveling.
1. The thickening principle of acrylic emulsion thickener
The principle of thickening of acrylic emulsion thickeners is to achieve thickening by forming a dispersed phase in the emulsion or constructing a network structure. Specifically, polymer thickeners dissolve or disperse in the emulsion to form a linear or cross-linked structure, resulting in a network of colloidal solutions that block the free movement of water molecules and particles, increasing the viscosity and viscosity of the emulsion. The acrylic lipid thickener is adsorbed on the surface of the latex particles in the coating through its microparticles, and the alkali swells to form a coating layer, which increases the volume of the latex particles, hinders the movement of the particles, and leads to the increase of the viscosity of the coating system.
2. Application and characteristics of acrylic emulsion thickener
Acrylic emulsion thickeners are widely used in emulsions, VAE emulsions, emulsified silicone oil defoamers, fabric coatings, paint printing, pressure-sensitive rubber emulsions, interior and exterior wall emulsion paints, water-based inks, spunlace non-woven pastes, industrial coatings, vinyl chloride emulsion paints, water-diluted alkyd, polyester, acrylic, polyurethane and other system thickening.
It can be quickly and significantly thickened, and the thickening performance is stable
1.It has good texture retention and anti-sagging;
2.Stable to microorganisms and enzymes, reducing raw material costs;
3.Its performance is comparable to that of imported products, and ** has more obvious advantages.