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            Spherical silica powder

            Spherical silica powder

            Spherical silica powder

            【基本說明】: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.

            【應用范圍】:

            >Basic characteristics of Spherical silica powder:

            ItemUnitTypical Value
            Appearance/White powder
            Particle morphology/Spherical
            Densitykg/m32.20×103
            Mohs Hardness/6.0
            Dielectric Constant /3.88(1MHz)
            Dielectric Loss/0.0002(1MHz)
            Coefficient of Linear Expansion1/K0.5×10-6
            Thermal ConductivityW/K·m1.1
            Refraction Coefficient/1.45

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

            ItemIndex of CorrectionIntroduction
            PuritySiO2contentAvailable within 98.0-99.9%
            Ion impurityNa+、Cl-,etc.Can be reduced below 1ppm
            Particle size distributionD50Available within D50=2-50μm
            Particle size distributionMay be adjusted on basis of typical distribution as needed, including multimodal distribution and narrow-range distribution.
            Appearance characteristicsSurface characteristics  0.5-30m2/g Controllable.
            Hydrophobicity and oil absorptionTreatment agent of different functions may be selected as needed by customer

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