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銆怑xplanation銆戯細Spherical silica powder refers to the spherical silicon dioxide powder material made of irregular corner silicon powder by process of flame and fusion method. It is featured by small surface area, good liquidity and low stress.
| Item | Unit | Typical Value |
|---|---|---|
| Appearance | / | White powder |
| Particle morphology | / | Spherical |
| Density | kg/m3 | 2.20脳103 |
| Mohs Hardness | / | 6.0 |
| Dielectric Constant | / | 3.88锛1MHz锛 |
| Dielectric Loss | / | 0.0002锛1MHz锛 |
| Coefficient of Linear Expansion | 1/K | 0.5脳10-6 |
| Thermal Conductivity | W/K路m | 1.1 |
| Refraction Coefficient | / | 1.45 |
| Item | Index of Correction | Introduction |
|---|---|---|
| Purity | SiO2content | Available within 98.0-99.9% |
| Ion impurity | Na+銆丆l-,etc. | Can be reduced below 1ppm |
| Particle size distribution | D50 | Available within D50=2-50碌m |
| Particle size distribution | May be adjusted on basis of typical distribution as needed, including multimodal distribution and narrow-range distribution. | |
| Appearance characteristics | Surface characteristics | 0.5-30m2/g Controllable. |
| Hydrophobicity and oil absorption | Treatment agent of different functions may be selected as needed by customer |
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