Hydroxypropyl Methyl Cellulose (HPMC) is a high-performance non-ionic cellulose ether derived from high-purity cotton fiber through a specialized etherification process under alkaline conditions. Engineered for the modern construction and chemical industries, our HPMC serves as a critical additive that optimizes the rheological properties of cement-based and gypsum-based materials, ensuring superior consistency and stability.
Specifically designed for professional applications such as tile adhesives and plaster additives, this versatile polymer provides exceptional water retention, thickening capabilities, and enhanced adhesion to substrates. Whether utilized in ceramic tile cement or joint fillers, our HPMC ensures a seamless application process, preventing premature drying and increasing the durability of the finished construction.
Detailed Parameters
| Appearance | Milky white or white powder | Carbonization Temp | 280-300 °C |
|---|---|---|---|
| Color Temp | 190-200 °C | Particle Size | 100 mesh > 98.8%; 80 mesh > 99.9% |
| Special Spec Size | 40-60 mesh | Apparent Density | 0.25-0.70g/cm³ (Avg. 0.5g/cm³) |
| Specific Gravity | 1.26-1.31 | Solubility | Water & Ethanol/Propanol mixtures |
| pH Stability | High Stability | Chemical Nature | Non-ionic Cellulose Ether |
Key Advantages
Superior Water Retention
Prevents rapid water loss in mortar, extending open time and reducing shrinkage cracks.
Enhanced Workability
Improves the fluidity and slip resistance of cement and gypsum slurries for easier application.
Strong Adhesion
Significantly improves the bonding strength between the additive and the substrate surface.
Stable Performance
Offers high transparency, salt resistance, and low ash content for consistent quality.
Excellent Film Forming
Creates a durable, flexible film that improves the overall structural integrity of coatings.
Mildew Resistance
Inherent resistance to mildew and fungi, ensuring long-term durability in humid environments.
Product Gallery
Management Platforms
Raw Material Control
Selection of highly pure cotton fibers to ensure base polymer stability.
Etherification Process
Strict alkaline condition control for optimal substitution degrees.
Quality Inspection
Rigorous mesh pass rate testing (98.8%+) for uniform particle distribution.
Viscosity Monitoring
Precise measurement of aqueous solution surface activity and stability.
Storage Management
Controlled environment to maintain apparent density and powder purity.
Application Support
Customized specifications available for 40-60 mesh requirements.
Investment Return Comparison
| Performance Metric | Standard Grade HPMC | Premium Grade HPMC |
|---|---|---|
| Water Retention | Moderate | Exceptional |
| Substrate Adhesion | Standard | High-Strength |
| Workability Time | Short | Extended |
| Waste Reduction | Typical | Significant Reduction |
| Project Durability | Basic | Professional Grade |
Frequently Asked Questions
HPMC acts as a water-retention agent and thickener, preventing the adhesive from drying too quickly and improving the bond strength between the tile and the wall.
It improves the water retention and workability of the slurry, allowing for smoother application and better adhesion to the substrate.
Yes, it is used in asbestos and other refractory coatings as a suspension agent and fluidity improver to enhance substrate adhesion.
Our HPMC is soluble in water and certain solvents, such as specific proportions of ethanol/water or propanol/water, producing high-transparency solutions.
Mesh size refers to particle fineness. 100 mesh is finer than 80 mesh, which can lead to faster dissolution and a more uniform mixture in fine-grade chemical products.
Our HPMC is designed for high pH stability, ensuring that it does not interfere with the chemical curing process of cement or gypsum.