SiO₂ typ. 99.80% · Fe₂O₃ 30 ppm-class · High-Purity Grade
SN-DRG07-A applies even stricter purity control than SN-DRG07 — a high-purity epoxy-silane surface-modified silica with SiO₂ typical 99.80%, Fe₂O₃ 30 ppm-class ultra-low iron and fine, uniform D50 of about 6.4 µm. Designed for HBM/AI semiconductor EMC and high-reliability underfill. Particle size distribution can be adjusted per customer requirement.
Key Features
- 🧬 Silane Coupling Surface Modification — Custom modification with epoxy, amino, vinyl, methacryl and more
- 🔗 Strong Interfacial Adhesion — Enhanced resin-filler bonding improves mechanical properties
- 🌊 Excellent Dispersibility — Minimized agglomeration and uniform dispersion improve processability
- 💧 Water/Humidity Resistance — Hydrolysis suppression ensures long-term reliability
- 🔧 Dual Grade — Crystalline SN-HJG and fused SN-HRG
- ⚙️ Custom Spec — Custom coupling agent type, loading and PSD
Technical Specifications
| Item | Value |
|---|---|
| Code | SN-DRG07-A |
| Appearance | White surface-modified powder |
| Surface Treatment | Epoxy silane |
| SiO₂ | ≥ 99.7 % (typ. 99.80) |
| Al₂O₃ | ≤ 0.3 % (typ. 0.08) |
| Fe₂O₃ | ≤ 0.01 % (typ. 0.003) |
| Aqueous EC | < 10 μs/cm (typ. 6.2) |
| Cl⁻ | < 5 ppm (typ. 1.02) |
| Na⁺ | < 5 ppm (typ. 1.13) |
| D10 | 1.788 μm |
| D50 | 6.442 μm (range 6-9) |
| D90 | 18.427 μm |
| Remarks | PSD adjustable per customer requirement |
| Country of Origin | China |
Main Applications
Epoxy Composites · Silicone Sealants · High-Performance Adhesives · Coatings & Inks
Parent Category: Surface-Modified Silica Powder
Particle size, purity, surface treatment and packaging can be customized to your specification. Contact us for samples, TDS and quotations.