Shaanxi KeGu New Material Technology Co., Ltd
Shaanxi KeGu New Material Technology Co., Ltd
Add to Cart
Our high-purity approximate spherical alpha alumina powder is specifically formulated to maximize thermal conductivity in polymer composites and thermal interface materials. With controlled particle size distribution and exceptional purity, this advanced ceramic filler enables superior heat dissipation in demanding electronic applications.
| Parameter | Unit | SW-2 | SW-5 | SW-8 | SW-15 | SW-20 |
| Al₂O₃ Content | % | ≥99.5 | ≥99.5 | ≥99.5 | ≥99.5 | ≥99.5 |
| SiO₂ | % | ≤0.10 | ≤0.08 | ≤0.08 | ≤0.08 | ≤0.08 |
| Fe₂O₃ | % | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 |
| Na₂O | % | ≤0.10 | ≤0.10 | ≤0.10 | ≤0.10 | ≤0.10 |
| LOI | % | ≤0.10 | ≤0.10 | ≤0.10 | ≤0.10 | ≤0.10 |
| H₂O | % | ≤0.10 | ≤0.10 | ≤0.10 | ≤0.10 | ≤0.10 |
| D50 | μm | 3.0±0.5 | 6.5±0.5 | 9.0±2.0 | 13.0±2.0 | 20.0±2.0 |
| Density | g/cm³ | 0.6±0.2 | 0.9±0.2 | 1.0±0.2 | 1.0±0.2 | 1.2±0.2 |
| Oil Absorption | % | ≤45 | ≤40 | ≤35 | ≤30 | ≤30 |
High Purity Composition: ≥99.5% Al₂O₃ content ensures optimal thermal performance and electrical insulation
Optimized Particle Morphology: Approximately spherical shape enables higher packing density and improved flow characteristics
Controlled Particle Size Distribution: Multiple D50 grades from 3μm to 20μm allow for precise formulation optimization
Reduced Oil Absorption: Lower resin demand enables higher filler loading and enhanced thermal conductivity
Excellent Filling Performance: Designed to maximize particle concentration in composite materials
Thermal Interface Materials: High-performance thermal greases, gap fillers, and thermally conductive gels
Thermal Management Systems: Thermally conductive gaskets, pads, and phase change materials
Electronic Packaging: Epoxy molding compounds, underfill materials, and encapsulants
Polymer Composites: Thermally conductive plastics, adhesives, and potting compounds
Enhanced Thermal Conductivity: High purity and optimized morphology directly improve heat transfer efficiency
Process Compatibility: Excellent dispersion characteristics simplify manufacturing processes
Formulation Flexibility: Multiple size options enable bimodal or multimodal distribution designs
Reliable Performance: Consistent batch-to-batch quality ensures predictable composite properties
