Product Description
Using liquid-phase in-situ surface modification, epoxy, double bonds, amino groups, and long carbon chains are grafted on the surface of nano-silica, reducing surface polarity, increasing pore volume and oil absorption, narrowing particle distribution, improving filler–substrate compatibility and stability. This reduces gloss and enhances matting effect.
Main Technical Indicators & Properties
| ltem | Specifications |
|---|---|
| Appearance | White powder |
| SiO₂ (dry basis, %) | ≥98 |
| Moisture (%) | ≤6.0 |
| Loss on ignition (950℃, %) | ≤10.0 |
| Castor oil absorption (mL/100g) | 140±20 |
| Specific surface area (m²/g) | 300±20 |
| pH value | 6.0–8.5 |
| Conductivity (µS/cm) | ≤300 |
| D50 (µm) | 4–6 |
Applications
Applicable to mid-high grade plastic paints, metallic paints, wood coatings, transparent paints, inks, water-based paints, two-component polyurethane paints, baking coatings, printing inks. Also used in self-drying and UV coatings. Provides matting and prevents hard sedimentation.
Product Features
Small primary particle size, large surface area and pore volume, organic surface modification, excellent dispersion and matting performance.
