1. The large partical size colloidal silica could be uesd in chemical mechanical polishing slurry, silicon wafer,gallium,sapphire wafer,compound semiconductor wafer ,disk,gem,LCD glass,ceramics, metal surface.
2.It could be used to catalyst carrier and digital printings.
3.It is fire-proof materials.It has high bonding strength and high heat-resisting performance (1500-1600)etc.
4.We have 4 basic type particles size from 30nm to 100nm.The about parameter could adjust by customer's request. Physical and Chemical Indicators are following.
Type |
Technical Parameter |
SiO2%
|
Na2O%
|
Proportion(25°C)
|
PH (25°C)
|
Viscosity(25°C,mm2/s)
|
particle size (nm)
|
Shelf life
|
SD-10050
|
49-50
|
≤0.5
|
1.37-1.39
|
9.0-10.5
|
≤20
|
100-130
|
≥1 year
|
SD-5050
|
49-50
|
≤0.5
|
1.37-1.39
|
9.0-10.5
|
≤20
|
90-120
|
≥1 year
|
SD-5040
|
39-41
|
≤0.5
|
1.28-1.30
|
9.0-10.5
|
≤20
|
90-120
|
≥1 year
|
SD-3030
|
29-31
|
≤0.5
|
1.19-1.21
|
9.0-10.5
|
≤6.5
|
80-90
|
≥1 year
|