SJF-1091

Date:2022-06-21 Views:131

  Specification

  Low conductivity,Excellent insulation, Low magnetic foreign body,Electrical stability.

 

  Application

  Epoxy molding compound,High frequency board,Sealing loading plate, Copper clad dielectric packing,Electronic ink,water-based paint,Fine polishing,Precision casting.

 

  Physical Characteristics

Item Unit

SJF-1091

Test Method
Average Particle Size D50 μm

8~12

Laser particle size analyzer
Specific Surface Area

m2/g

1.3~2.5

Specific surface area analyzer
Electrical Conductivity

μS/cm

≤10

Electrical Conductivity Meter
PH

/

5~8

PH Meter
Whitenesse %

≧90

Whiteness Meter

Magnetic Foreign Matter

mg/100g

≤1.0

Adsorption weighing method

 

  Chemical Characteristics

Item Chemical compositions(%) Test Method
SiO2 Al2O3

Fe2O3

Specification

≥99.6

≤0.2

 

≤0.02

 

 

Atomic Absorption Spectroscopy

 

  

  SEM Image

  

  

    Typical test data are listed in the above Tables unless otherwise specified.