STD65000PF Cellulose Ether
Category：Paint chemicals
Introduction
Provides good workability, suitable setting time and excellent bond strength for tile adhesives.
Introduction
STD65000PF is a premium-grade cellulose ether specifically engineered for high-demand construction applications. This modified ether delivers exceptional performance in water retention, rheological control, and mechanical property enhancement for cementitious and gypsum-based systems. The following tables provide comprehensive technical data on this advanced additive.
Fundamental Specifications
| Property | Specification Range | Test Standard |
|---|---|---|
| Appearance | Free-flowing white powder | Visual inspection |
| Moisture content | ≤4.0% | ASTM D7191-10 |
| Bulk density | 0.40-0.60 g/cm³ | ISO 697:1981 |
| Ash content (800°C) | ≤5.0% | ISO 2144:2019 |
| Particle size distribution | 90%<150μm | Laser diffraction |
| pH (1% solution) | 6.0-8.5 | ASTM E70-19 |
Rheological Characteristics (2% aqueous solution, 20°C)
| Parameter | Typical Value | Measurement Method |
|---|---|---|
| Brookfield viscosity | 55.000-75.000 mPa·s | LV spindle, 20 rpm |
| Gelation temperature | >80°C | Hot water bath method |
| Solution transparency | ≥85% | Spectrophotometry |
| Hydration time | <15 minutes | Visual gel formation |
| Pseudoplasticity index | 0.35-0.45 | Rheometer measurement |
Performance Benefits in Building Materials
| Application Area | Key Performance Improvements |
|---|---|
| Cement mortars | 25-35% water reduction potential |
| Gypsum plasters | 40-50% improvement in adhesion strength |
| Self-leveling compounds | 30% reduction in surface defects |
| Tile adhesives | 50% longer open time |
| Repair mortars | 35% lower shrinkage |
Recommended Formulation Guidelines
| Application | Dosage Range | Optimal pH Range | Mixing Recommendation |
|---|---|---|---|
| Thin-bed tile adhesive | 0.3-0.6% | 7.5-9.0 | Dry mix with other powders |
| External wall putty | 0.2-0.5% | 8.0-10.0 | Premix with fillers |
| Gypsum joint compound | 0.15-0.35% | 6.5-8.0 | Add during liquid phase |
| Cement-based waterproofing | 0.4-0.8% | 9.0-11.0 | Combine with polymer |
| Decorative plaster | 0.1-0.3% | 7.0-8.5 | Blend with aggregates first |
Storage and Handling Parameters
| Factor | Requirement | Special Considerations |
|---|---|---|
| Shelf life | 24 months | In original sealed packaging |
| Storage temperature | 5-30°C | Avoid temperature fluctuations |
| Relative humidity | <65% | Use desiccant if necessary |
| Packaging size options | 20kg, 25kg, 500kg | Palletized for bulk orders |
| Safety classification | Non-hazardous | Use standard PPE for powders |
Conclusion
STD65000PF cellulose ether represents a technological advancement in construction chemical additives, offering builders and formulators unmatched control over material properties. Its high viscosity stability, excellent water retention, and broad compatibility make it particularly valuable for premium-grade building materials requiring superior workability and final performance characteristics.
Factory & Shipment
