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Adjustable Particle Size Soft Composite Silica Powder

This adjustable particle size soft composite silica powder is manufactured using specialized processes, featuring tunable particle size (D50 0.5-10μm), low hardness, and excellent dispersibility. Ideal for advanced electronic packaging, thermal interface materials, and flexible composites, it significantly enhances mechanical flexibility and thermal management performance.

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Product Description

Product Description

This adjustable particle size soft composite silica powder is manufactured using specialized processes, featuring tunable particle size (D50 0.5-10μm), low hardness, and excellent dispersibility. Ideal for advanced electronic packaging, thermal interface materials, and flexible composites, it significantly enhances mechanical flexibility and thermal management performance.

Key Advantages:

Precise particle size control (customizable 0.5-10μm)
Low hardness & minimal abrasion (Mohs hardness ≤5, equipment-friendly)
High loading capacity & low viscosity (improves processing efficiency)
Superior dielectric properties (for high-frequency electronic materials)

Applications

Electronic Packaging: Chip encapsulation, EMC (epoxy molding compounds) - improves flowability and filler loading
Thermal Materials: Filler for thermal greases/gels - enhances heat dissipation
Flexible Composites: Flexible PCBs (FPC), wearable devices
Coatings & Adhesives: Improves coating flexibility, reduces settling
Precision Ceramics: Low-temperature sintering ceramics - minimizes cracking

Product Benefits

Customizable: Adjustable particle size, surface modification (silane coupling agent treatment)
Low-wear: Soft particles reduce equipment abrasion
High compatibility: Works with epoxy, silicone, polyurethane systems
Eco-friendly: Complies with RoHS & REACH standards

Why Choose Us?

Verified Made-in-China supplier with reliable quality
Technical customization & application solutions available
Stable supply chain: Supports sample trials & bulk orders

Packaging & Shipping

Standard: 25kg/bag (customizable)
Samples available (application details required)

Project	Unit	Typical values
Appearance	/	White powder
Density	kg/m3	2.59×103
Mohs hardness	/	five
Dielectric constant	/	5.0（1MHz）
Dielectric loss	/	0.003（1MHz）
Linear expansion coefficient	1/K	3.8×10-6

Soft composite silicon micro powder can be classified into specifications and matched according to customer requirements based on the following characteristics:

Project	Related indicators	Explain
Chemical Composition	SiO2 content, etc	Having a stable chemical composition to ensure consistent performance
Ion Impurity	Na+, Cl -, etc	Can be as low as 5ppm or below
Particle Size Distribution	D50	D50=0.5-10 µ m optional
Particle Size Distribution	Particle size distribution	Adjustments can be made based on typical distributions as required, including multimodal distributions, narrow distributions, etc
Surface Characteristics	Hydrophobicity, oil absorption value, etc	Different functional treatment agents can be selected according to customer requirements