Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of big pore volume silicone dioxide for pigment in China. With abundant experience, we warmly welcome you to buy high quality products made in China here from our factory. Contact us for more details.
Big Pore Volume Silicone Dioxide for Pigment
| Material: | Big pore volume silicone dioxide |
|---|---|
| Application: | Paint and pigmeng |
| Certification: | ISO |
| Transport Package: | Valve Plastic Woven Bag, Pallet |
| Specification: | 10kg/bag, 20kg/bag |
| Samples: |
for free |
|---|
This silica product for paint and pigment JS-500 has superior performance,its BET can be 540m2/g,the general BET of precipitated silica product is about 170-180m2/g ,so it is about 3 times of general precipitated silica.You can imagine,about 17g of the silica powder ,its total BET is about a big football field.So this silica powder has good absorption,it is used as a carrier for paint nad anti-corrosive pigment.
.
JS-500
|
No |
Properties |
Units |
Target Values (Spec Limits) |
Actual Values |
|
1 |
Appearance 外观 |
— |
白色粉末 |
白色粉末 |
|
2 |
Particle size D50 粒径 D50 |
μm |
— |
4.0 |
|
3 |
Pore volume 孔容 |
ml/g |
— |
0.4 |
|
4 |
BET specific surface area BET比表面积 |
m2/g |
— |
540 |
|
5 |
DBP absorption value DBP吸收值 |
ml/100g |
— |
70 |
|
6 |
SiO2 (Dry Basis) 二氧化硅(干基） |
% |
Min.98 |
99.05 |
|
7 |
Loss on drying (2Hrs,105℃)加热减量 |
% |
Max.4.0 |
3.5 |
|
8 |
Whiteness 白度 |
— |
Min.94 |
96 |
FAQ:
What is the function of silica powder for pigment and painting?
1.Anti settling agent:
Silica is an ideal anti sedimentation agent. The hydrogen bond structure formed by it is very stable and uniform, and it is a three-dimensional network structure, which is very effective in preventing pigment precipitation in the paint system. Especially for the color paste system, the appropriate addition amount will greatly improve the stability of the color paste, and can reduce the amount of wetting dispersant, so as to improve the applicability of the color paste and reduce the impact of the color paste on the paint system. At the same time, the anti sedimentation effect of silicon dioxide is very beneficial to the storage of coatings, especially some pigments, such as metal powder and flakes, are very easy to precipitate and can not be completely suspended. The use of silicon dioxide can ensure its dispersion without precipitation.
2.Dispersible Agent
In the powder system, due to the small particle size and high surface energy of silica, they can be adsorbed on the surface of the coating powder and form a surface layer on the powder surface to improve the dispersion of the powder. In the same coating system, adding silica can obviously shorten the dispersion time and improve the production efficiency.
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