Sodium Carboxymethyl Cellulose, usually referred to as Sodium CMC or CMC, has been widely used as thickener, stabilizer and protective colloid in the painting industry because of its excellent properties. Let’s talk about the application of CMC used in ordinary paints.
The macromolecular chain of CMC with hydroxyl group hydrates with water and produces entanglement at the same time, thus increasing the viscosity of water phase. As a result, CMC has good compatibility in water or organic solvents, and has good compatibility with pigments. This can greatly improve the viscosity and rheology of paints, so CMC is often used as thickener, dispersant and stabilizer in the painting industry. The specific effects of CMC in the application of water-based paints are as follows:
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