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Soft composite silica powder
Soft composite silica powder
【基本说明】：Soft composite silica powder refers to the glass phase silicon dioxide powder material made of natural quartz and other inorganic non-metallic minerals by such processes as compounding, melting, cooling, crushing, grinding and classifying.
【应用范围】：
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>Basic characteristics of Soft composite silica powder：
| Item | Unit | Typical Value |
|---|---|---|
| Appearance | / | White powder |
| Density | kg/m3 | 2.59×103 |
| Mohs Hardness | / | 5.00 |
| Dielectric Constant | / | 5.0（1MHz） |
| Dielectric Loss | / | 0.003（1MHz） |
| Coefficient of Linear Expansion | 1/K | 3.8×10-6 |
>Soft composite silica powder can be sorted on basis of following characteristics and prepared as required by customers:
| Item | Index of Correction | Introduction |
|---|---|---|
| Purity | SiO2content | Chemically stable composition, to ensure consistency of performance. |
| Ion impurity | Na+、Cl-,etc. | Can be reduced below 5ppm |
| Particle size distribution | D50 | Available within D50=0.5-10?m |
| Particle size distribution | May be adjusted on basis of typical distribution as needed, including multimodal distribution and narrow-range distribution. | |
| Surface characteristics | Hydrophobicity and oil absorption | Treatment agent of different functions may be selected as needed by customer |
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