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 (%) | ≤5.0 |
| Loss on ignition (950℃, %) | ≤12.0 |
| Castor oil absorption (mL/100g) | 180±20 |
| Specific surface area (m²/g) | 260±20 |
| pH value | 6.0–8.5 |
| Conductivity (µS/cm) | ≤300 |
| D50 (µm) | 5–25 |
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
Adjustable particle size, balanced surface area and pore volume, superhydrophobic modified surface, excellent scratch resistance and transparency in composite coatings.
