Dispersant
Dispersants are essential chemical additives designed to improve the dispersion of solid particles in liquid media. As industry-leading dispersant manufacturers, we provide high-performance solutions for paints, coatings, inks, ceramics, and other applications requiring uniform particle distribution.
Technical Specifications
- Appearance: Clear to slightly yellowish liquid
- Active Content: 40-50% by weight
- pH Value: 7.0-9.0 (5% aqueous solution)
- Density: 1.05-1.15 g/cm³ at 25°C
- Solubility: Soluble in water and most organic solvents
- Viscosity: 100-300 mPa·s at 25°C
| Parameter | Value | Test Method |
|---|---|---|
| Dispersion Efficiency | > 95% | ASTM D281 |
| Thermal Stability | Stable up to 200°C | ISO 11357 |
| Shelf Life | 24 months | Sealed containers at 5-30°C |
| Flash Point | > 100°C | ASTM D93 |
Dispersant FAQ
Q: What is the recommended dosage for dispersants in paint formulations?
A: The typical dosage ranges between 0.2-2.0% based on total formulation weight. For optimal results, we recommend starting with 0.5% and adjusting based on pigment loading and system requirements. Higher pigment concentrations may require up to 2.0% dispersant. Always conduct small-scale tests before full production.
Q: How does this dispersant compare to traditional wetting agents?
A: Our dispersant offers superior performance with multiple advantages: 1) Lower dosage requirements (typically 30-50% less than conventional wetting agents), 2) Improved color development and gloss, 3) Better long-term stability against sedimentation, 4) Reduced foaming tendency during application. The polymeric structure provides stronger anchoring to particle surfaces while the hydrophilic backbone ensures excellent compatibility with aqueous systems.
Q: Can your dispersant be used in high-solids or solvent-borne systems?
A: Yes, we offer specialized dispersant formulations for various systems. For solvent-borne applications, we recommend our DS-200 series which features excellent solubility in organic solvents. In high-solids systems (above 65% solids), our DS-300 series provides exceptional viscosity reduction while maintaining dispersion stability. Always consult our technical datasheets or contact our support team for system-specific recommendations.
Application Guidelines
For optimal dispersant performance:
- Add dispersant to the liquid phase before introducing solid particles
- Maintain proper agitation during addition (500-1000 rpm recommended)
- Allow sufficient wetting time (5-15 minutes) before increasing shear
- Monitor viscosity changes throughout the dispersion process
- Verify final particle size distribution using appropriate measurement techniques
Comparative Performance Data
| Property | Our Dispersant | Standard Dispersant |
|---|---|---|
| Dispersion Time Reduction | 30-40% | Baseline |
| Viscosity Reduction | 45-55% | 20-30% |
| Color Strength Improvement | 15-25% | 5-10% |
| Storage Stability (6 months) | No settling | Visible sediment |
Safety Information
- Wear appropriate PPE (gloves, goggles) when handling
- Store in original containers away from heat sources
- Keep away from oxidizing agents
- In case of skin contact, wash thoroughly with soap and water
- Consult SDS for complete safety instructions