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  • Spherical silica powder

    Spherical silica powder

    Spherical silica powder

    【Explanation】:Spherical silica powder refers to the spherical silicon dioxide powder material made of irregular corner silicon powder by process of flame and fusion method. It is featured by small surface area, good liquidity and low stress.

    【Applications】:

    >Basic characteristics of Spherical silica powder:

    ItemUnitTypical Value
    Appearance
    /
    White powder
    Particle morphology
    /
    Spherical
    Density
    kg/m3
    2.20×103
    Mohs 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
    Refraction Coefficient
    /
    1.45

    >Spherical silica powder can be sorted on basis of following characteristics and prepared as required by customers:

    ItemIndex of CorrectionIntroduction
    Purity
    SiO2content
    Available within 98.0-99.9%
    Ion impurity
    Na+、Cl-,etc.
    Can be reduced below 1ppm
    Particle size distribution
    D50
    Available within D50=2-50µm
    Particle size distribution
    May be adjusted on basis of typical distribution as needed, including multimodal distribution and narrow-range distribution.
    Appearance characteristics
    Surface characteristics
     0.5-30m2/g Controllable.
    Hydrophobicity and oil absorption
    Treatment agent of different functions may be selected as needed by customer

    *For any special requirements, please feel free to contact us, we will provide solutions for you wholeheartedly.

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