Soft composite silicon dioxide micropowder is a glass phase silicon dioxide powder material produced by processing raw materials such as natural quartz and other inorganic non-metallic minerals through processes including compounding, melting, cooling, crushing, grinding, and classifying.
Basic Product Features:
Soft composite silicon micropowder, compared to crystalline silicon micropowder, has lower hardness and less wear on equipment; low coefficient of thermal expansion; and a stable chemical composition, ensuring excellent chemical stability.
Product Application Fields:
Broadly used in industries such as copper-clad laminates, ink coatings, adhesives, electronic packaging, and composite materials.
Basic Characteristics of Soft Composite Silicon Micro Powder:
| Physical and Chemical Properties | Unit | Typical Value |
| Appearance | / | White powder |
| Density | kg/m3 | 2.59×103 |
| Mohs Hardness | / | 5 |
| Dielectric Constant | / | 5.0（1MHz） |
| Medium Loss | / | 0.003（1MHz） |
| Linear Coefficient of Thermal Expansion | 1/K | 3.8×10-6 |
Soft composite silicon micropowders can be specified and matched according to customer requirements based on the following characteristics:
| Product Features | Relevant indicators | Description |
| Chemical Composition | SiO2Content levels | Features a stable chemical composition, ensuring consistent performance. |
| Ion Impurities | Na+, Cl- | As low as 5ppm and below |
| Particle size distribution | D50 | D50 = 0.5-10 µm available |
| Particle size distribution | Adjustments can be made based on requirements from typical distributions, including multi-peak and narrow distributions. | |
| Surface Characteristics | Water-repellent, oil absorption value | Select different functional processors as per customer requirements. |
