Silica sol belongs to colloidal solution, tasteless and non-toxic. Because the colloidal particles are very fine and have a considerable specific surface area, the particles themselves are colorless and transparent and do not affect the color of the covering. It has a low viscosity and is permeable wherever water can, so it is well dispersed and permeable when mixed with other substances. When the silica sol water evaporates, colloidal particles firmly adhere to the surface of the object, the formation of siloxane between the particles, is a good inorganic adhesive.
Buy Cheap Price Silica Sol Made in China
Properties: Silica sol belongs to colloidal solution, tasteless and non-toxic. Because the colloidal particles are very fine and have a considerable specific surface area, the particles themselves are colorless and transparent and do not affect the color of the covering. It has a low viscosity and is permeable wherever water can, so it is well dispersed and permeable when mixed with other substances. When the silica sol water evaporates, colloidal particles firmly adhere to the surface of the object, the formation of siloxane between the particles, is a good inorganic adhesive.
Purpose:
① Used as a binder for various refractory materials, with strong bonding force, high temperature resistance (1500-1600℃) characteristics
② Used in the coating industry, can make the coating firm, good adhesion performance, and anti fouling, dust resistance, aging resistance and other characteristics.
③ Silica sol has higher specific surface, which can be used for catalyst production and catalyst support.
④Used in the paper industry, can be used as anti-stick agent of cellophane, pretreatment agent of photographic paper, etc
⑤ Used for thin shell precision casting, can make the shell shape strength, high casting finish.
Technical indicators:
Project |
Alkaline |
Acid |
|||||
JN-20 |
JN-25 |
JN-30 |
JN-40 |
SO-20 |
SO-25 |
SO-30 |
|
Silica % |
20-21 |
25-26 |
30-31 |
40-41 |
20-21 |
250-26 |
30-31 |
Sodium oxide %≤ |
0.3 |
0.3 |
0.3 |
0.4 |
0.04 |
0.05 |
0.06 |
Viscosity(25℃) 10ˉ³Pa.s≤ |
5 |
6 |
7 |
25 |
5 |
6 |
7 |
PH(25℃) |
9-10 |
2-4 |
|||||
Relative density(25℃) |
1.12-1.14 |
1.15-1.17 |
1.19-1.21 |
1.28-1.30 |
1.12-1.14 |
1.15-1.17 |
1.19-1.21 |
Average particle size nm |
10-20 |
10-20 |
|||||
Note: Special requirements according to protocol standards |