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Spherical silica powder

Spherical silica powder

Spherical silicon fine powder (NOVOPOWDER DQ)

[Basic description]: Spherical silica fine powder is made of selected irregular angled silica fine powder and processed into a spherical shape by the flame melting method. Thus, a spherical silica powder with small specific surface area, good fluidity and low stress is obtained.体 材料。 Body material.

[Scope of application]:




> Basic properties of spherical silica powder:

project unit Typical value
Exterior / White powder
Particle morphology / spherical
density kg / m 3 2.20 × 10 3
Moh's hardness / 6.0
Dielectric constant / 3.88 (1MHz)
Dielectric loss / 0.0002 (1MHz)
Coefficient of linear expansion 1 / K 0.5 × 10 -6
Thermal conductivity W / K · m 1.1
Refractive index / 1.45

> Spherical silicon powder can be differentiated based on the following characteristics and cooperated according to customer requirements:

project Related indicators Description
purity 含量等 SiO 2 content, etc. Selectable within 98.0-99.9%
Ionic impurities Na +, Cl-, etc. Can be as low as 1ppm
Particle size distribution D50 D50 = 2-50µm optional
Particle size distribution Can be adjusted based on typical distributions, including multimodal distributions, narrow distributions, etc., as required.
Surface properties Specific surface area /g可控。 Controllable from 0.5-30m 2 / g.
Hydrophobicity, oil absorption value, etc. According to customer requirements, different functional treatment agents can be selected.

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