Soft composite silica powder
Soft composite silica powder
【Explanation】：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.
【Applications】：
>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=0.5-10μm |
| 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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