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Hydroxyethyl Methyl Cellulose (HEMC) 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
Hydroxyethyl Methyl Cellulose 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.
Company profile
Qingdao ACTA Biotechnology Co., Ltd., established in 2002, is a premier high-tech enterprise integrating advanced R&D, large-scale production, and global sales. We specialize in high-performance chemical additives and cellulose derivatives, providing essential raw materials for the lubricant, pharmaceutical, and food industries.
Our Core Product Portfolio
We offer a comprehensive range of high-quality chemical series, including:
Stearate Series (including Lithium 12-Hydroxy Stearate).
Cellulose Derivatives: MCC (Microcrystalline Cellulose), HPMC, HEMC, and CMC series.
Specialty Oleates & Laurates: Sodium Oleate and related surfactant series.
Why Partner with ACTA?
Technical Excellence: Over 20% of our workforce consists of senior engineers, driving continuous innovation and customized solutions.
Global Export Expertise: With an independent import/export license, our products are trusted by clients across Europe, America, West Asia, Southeast Asia, and Africa.
Certified Quality Assurance: We operate under ISO9001 and ISO22000 management systems. Our products are fully certified by KOSHER and HALAL, ensuring compliance with international standards.
State-of-the-Art Production: Our facilities feature rational planning and advanced R&D equipment, guaranteeing stable product quality and competitive pricing through scientific management.
Our Commitment
Guided by the principle of "Quality First, Customer Foremost," we are dedicated to providing credible service and innovative development. We look forward to establishing long-term, mutually beneficial partnerships with global distributors and manufacturers to create a successful future together.
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