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Help CenterMHEC Industrial Grade Methyl Hydroxy Ethyl Cellulose Powder for Superior Water Retention
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MHEC(Methyl hydroxyethyl cellulose) is a non-ionic cellulose ether known for its versatility and performance in various applications, particularly in construction and personal care products. Below are the specifications, properties, and applications of HEMC.
Specifications
| Property | Specification |
|---|---|
| Appearance | White or light yellow powder |
| Methoxy Content (%) | 18.0 - 24.0 |
| Hydroxyethyl Content (%) | 8.0 - 16.0 |
| pH Value | 5.0 - 8.5 |
| Moisture Content (%) | ≤ 8 |
| Ash Content (%) | ≤ 3 |
| Mesh Size | 100 mesh (98.5% pass), 80 mesh (100% pass) |
| Viscosity (2%, 20°C, mPa.s) | 400 - 200,000 |
Viscosity Grades and Applications
HEMC is available in various grades, each with specific viscosity ranges and applications:
| Grade | Viscosity (mPa.s, 2% solution) | Applications |
|---|---|---|
| ACTA10000 | 9000 - 15000 | Render |
| ACTA20000 | 15000 - 25000 | Tile adhesive, EIFS, plaster, joint filler, grout |
| ACTA30000 | 25000 - 40000 | Tile adhesive, EIFS, gypsum finishing plaster |
| ACTA45000 | 40000 - 55000 | Tile adhesive, waterproofing mortar |
| ACTA50000 | 50000 - 65000 | Tile adhesive, EIFS |
| ACTA70000 | 65000 - 75000 | Tile adhesive, concrete adhesive |
Key Properties
Cold Water Solubility: HEMC dissolves easily in cold water, facilitating quicker preparation times.
High-Temperature Resistance: Maintains stability under temperatures up to approximately 75°C.
Water Retention: Extends open time for cement hydration and improves workability.
Lubrication: Enhances the processing characteristics of mortars and other mixtures.
pH Stability: Remains stable within a pH range of 3 to 11.
Thermal Gelation: Transitions to a gel state at high temperatures but reverts to liquid upon cooling.
Film Formation: Provides waterproof and oil-proof characteristics.
Applications
Construction:
Used as a thickening agent and water retention agent in cement-based products like mortars, tile adhesives, and plasters.
Improves workability and reduces cracking.
Personal Care Products:
Acts as a thickener and stabilizer in lotions, creams, and other cosmetic formulations.
Paints and Coatings:
Functions as a thickener and stabilizer to enhance viscosity and adhesion.
Adhesives and Sealants:
Provides better workability and adhesion properties in various adhesive formulations.
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