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Retention and Drainage Aid for Microparticle Papermaking
MPS nano-level high-efficiency papermaking retention and drainage aid
MPS nano-level high-efficiency papermaking retention and drainage aid is a nano-level silica sol product modified by metal salt. It was developed by Hubei Daya Company's Provincial Postdoctoral Industrial Base and Wuhan University's School of Environmental Resources and has been listed as a national major industry Technology development plan and investment plan project. The product has small particle size, large specific surface area, high negative charge density, strong electrostatic adsorption capacity, and can induce particles to aggregate into small, uniform, dense and more open three-dimensional network three-dimensional structure flocs, which can significantly improve fine fibers With the retention rate of fillers and rubber materials in the papermaking process, it accelerates the dehydration of pulp and reduces the loss of fibers in the white water. It can effectively improve the uniformity of the paper, improve the quality of the paper, save fiber raw materials, and reduce environmental pollution. It is a new type of product with high-efficiency retention, filtration, resource conservation and environmental friendliness.
Main technical indicators of MPS nano-level high-efficiency papermaking retention and filter aid
|
Indicator name |
unit |
Index value |
Description |
|
Content (calculated as SiO2) |
% |
≥15 |
|
|
PH |
|
9.5-11.0 |
|
|
Specific surface area |
m2/g |
800-900 |
|
|
The average particle size |
nm |
4.0-3.0 |
|
|
S-value |
% |
≤70 |
|
|
Negative charge density |
meq/g |
1-1.05 |
|
|
stability |
month |
≥6 |
Based on the time when the gel appears |
Product chemical structure
|
Indicator name |
unit |
Index value |
Explain |
|
Improve retention |
% |
≥10 |
*Compared with the standard traditional dual retention system under the same uniformity compared to the standard paper material system |
|
Reduce water filtration time |
% |
≥10 |
*Compared with the standard traditional dual retention system under the same uniformity compared with the standard paper material system |
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