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Carboxymethyl cellulose

CMC

Construction Grade CMC is a water-soluble cellulose derivative developed for cement- and gypsum-based construction materials. It functions primarily as a thickener, water-retention agent, binder, and rheology modifier, helping improve consistency, workability, water retention, and formulation stability in dry-mix building materials.

Chemical Name
Carboxymethyl cellulose
CMC

Product Advantages

Key Performance

Water Retention

Helps reduce rapid water loss from cement- and gypsum-based materials, supporting proper hydration and improving application performance.

Thickening Efficiency

Provides effective viscosity build-up and improves the consistency and body of construction formulations.

Workability

Improves mortar consistency, spreading and handling, making the material easier and smoother to apply.

Rheology Modification

Controls flow behavior and consistency, helping maintain suitable application properties during mixing and construction.

Cohesion

Enhances cohesion between formulation components and helps maintain a uniform and stable mortar structure.

Anti-Sag Performance

Helps reduce sagging and downward movement of applied materials on vertical surfaces.

Binding Ability

Provides binding properties that help improve the integrity and consistency of formulated construction materials.

Performance Consistency

Provides stable thickening, water-retention and rheological performance to support consistent production quality.

Product Data

Technical Parameters

Parameter Value Unit Note
Viscosity 300–10,000 mPa·s 1% aqueous solution, 25°C
Degree of Substitution (DS) 0.70–1.20 Typical range
Purity ≥90.0 % Dry basis
pH Value 6.5–8.5 1% aqueous solution
Moisture Content ≤10.0 % Loss on drying
Particle Size ≥95 % Passing 80 mesh
Water Solubility Soluble in water Forms a viscous aqueous solution

Resources

Technical Documents

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