Soft composite silicon powder is a kind of natural quartz and other inorganic non-metallic minerals as raw materials, through various processes such as compounding, melting, cooling, crushing, ultra-fine grinding, precision grading, surface treatment, etc
Feature：
Compared to crystalline silicon powder, it has lower hardness and less wear on equipment; Low coefficient of thermal expansion; Having a stable chemical composition ensures excellent chemical stability.
Application：
Applied in industries such as Copper-clad laminate, Ink coatings, Adhesives, Electronic packaging, and Composite materials.
Technical Data：
| Item | Unit | Typical Value | |
| 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. | ||
| Appearance | / | White powder | |
| Density | kg/m3 | 2.59×103 | |
| Mohs Hardness | / | 5 | |
| Dielectric Constant | / | 5.0（1MHz） | |
| Ion impurity | ppm | Can be reduced below 3ppm | |
| Purity | SiO2content | % | 60.00±2.00 |
| Al2O3content | % | 14.00±2.00 | |
1.The above physical indicators and chemical compositions are based on the average value of sample analysis and testing.
2.Individualized products can be customized: Particle size distribution can be controlled, and different surface activation can be selected.
3.For any special requirements, please feel free to contact us, we will provide solutions for you wholeheartedly.
