HEMC (Hydroxyethyl Methyl Cellulose)

HEMC (Hydroxyethyl Methyl Cellulose) 

HEMC is a non-ionic, water-soluble polymer derived from cellulose. It is synthesized through the chemical modification of natural cellulose, involving etherification with methyl chloride and ethylene oxide.

Key Properties:

• Water Retention: Excellent moisture retention, making it ideal for cement-based mortars and gypsum products.

• Thickening: Forms viscous solutions, enhancing workability in coatings, adhesives, and construction materials.

• Film Formation: Creates flexible, transparent films used in coatings and cosmetics.

• Thermal Gelation: Some grades gel when heated, useful in pharmaceutical applications.

• pH Stability: Stable in both acidic and alkaline environments (pH 3–11).

Applications:

1. Construction: Tile adhesives, renders, self-leveling compounds, and cement mortars.

2. Coatings & Paints: Improves viscosity and sag resistance.

3. Pharmaceuticals: Binder in tablets, controlled-release agent.

4. Personal Care: Thickener in shampoos, lotions, and cosmetics.

5. Food Industry: Stabilizer and emulsifier (food-grade HEMC).

Advantages:

• Enhances workability and adhesion.

• Reduces cracking in construction materials.

• Eco-friendly and biodegradable (derived from cellulose).