Nano-silica
has the characteristics of small particle size, large number of micropores,
large specific surface area, high surface hydroxyl content, strong reflection
ability to ultraviolet light, visible light and infrared light. Especially with
the improvement of the surface treatment process of the product, the soft
agglomeration degree of the nano particles is obviously reduced, and the
compatibility with the organic polymer material is good, which greatly broadens
the application field of the product.
Physical
parameters:
Molecular
formula: SiO2,
Component:
60.084,
Density:
2.2g/cm3,
Melting
point: 1723 degrees,
Boiling
point: 2230 degrees,
Hardness:
4.5,
Thermal
conductivity 4 W/(m.K)
Technical
indicators：
|
model
|
DK-SiO2-15
|
DK-SiO2-30
|
DK-SiO2-60
|
|
Molecular formula
|
SiO2
|
SiO2
|
SiO2
|
|
Exterior
|
White powder
|
White powder
|
White powder
|
|
The average particle size
|
15nm
|
30nm
|
60nm
|
|
Specific surface area
|
250 m2/g
|
200 m2/g
|
150-200 m2/g
|
|
SiO2 content
|
99.9%
|
99.9%
|
99.9%
|
|
Bulk density
|
0.1-0.15 g/cm3
|
0.15-0.18 g/cm3
|
0.18-0.2 g/cm3
|
|
PH value
|
5-7
|
5-7
|
5-7
|
Surface
modification treatment: hydrophilic, lipophilic, hydrophobic (coupling agent
KH550 KH560 KH570 A182, etc.)
Product
Features:
1.
This product is white powder, non-toxic and tasteless, non-polluting and
chemically stable.
2.
high temperature resistance, large surface area, small particle size.
3.
Good dispersibility, suspension, vibration and liquefaction.
4.
has a good thixotropy.
5.
has a good strengthening and thickening effect.
6.
after surface treatment, has better hydrophilic and lipophilic.
The recommended amount of product added is
0.5-2%.
|
