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STD2010 Modified cellulose ether for cementitious use

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It has good water retention, which reduces the entry of moisture from the mortar into the substrate, as well as good slip resistance.

Introduction

STD2010 is a specially engineered cellulose ether designed to enhance the performance of cement-based construction materials. This high-performance additive improves workability, water retention, and adhesion while maintaining optimal mechanical properties in various cementitious systems. The following tables provide comprehensive technical information about this advanced construction chemical.

Fundamental Physical & Chemical Properties

PropertySpecification RangeTest Method
AppearanceWhite to off-white powderVisual inspection
Moisture content≤4.5%ASTM D7191
Bulk density0.35-0.55 g/cm³ISO 697
pH (1% solution)6.0-8.5ASTM E70
Particle size80% ≤100μmLaser diffraction
Ash content≤5.0%ISO 2144

Rheological Properties (2% aqueous solution at 20°C)

ParameterTypical ValueMeasurement Method
Brookfield viscosity30.000-50.000 mPa·sLV spindle, 20 rpm
Gelation temperature>75°CHot water bath method
Hydration time<10 minutesVisual assessment
Pseudoplasticity index0.40-0.50Rheometer measurement
Water retention≥95%Filter paper method

Performance Advantages in Cementitious Systems

Performance AspectImprovement EffectBenefit
Workability30-40% increaseEasier application
Water retention95-98% retentionReduced cracking
Open time20-30% extensionBetter workability
Adhesion strength15-25% improvementStronger bond
Shrinkage reduction20-35% decreaseFewer cracks

Recommended Dosage Guidelines

ApplicationDosage Range (% by cement weight)Key Benefit
Tile adhesives0.2-0.6%Improved adhesion
Self-leveling compounds0.05-0.3%Better flowability
Cement renders0.15-0.5%Enhanced workability
Repair mortars0.2-0.8%Reduced shrinkage
EIFS base coats0.3-0.7%Improved crack resistance

Compatibility with Common Cement Additives

Additive TypeCompatibility LevelRecommended Usage
PCE superplasticizersExcellentCan be used together
Redispersible powdersVery goodEnhances flexibility
Air-entraining agentsGoodNo negative effect
RetardersGoodMay require adjustment
AcceleratorsFairDosage optimization needed

Conclusion

STD2010 modified cellulose ether represents an advanced solution for cementitious applications, offering superior water retention, workability enhancement, and improved mechanical properties. Its balanced rheological characteristics and excellent compatibility with other additives make it particularly valuable for high-performance construction materials. The product’s consistent quality and reliable performance ensure optimal results in various cement-based formulations.

 

Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.

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