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1.Polyacrylamide2.M.W:5-24million3.Oil field,Water treatment,Textile,Dyeing4.High flocculability5.Manufactuere OEM
The APAM with the molecular weight of 6-24 million has good water solubility,it can be dissolved in water by arbitrary proportion but not in organic solvents. It has the characteristics of high-polymer electrolyte in the neutral and alkaline medium,it is sensitive to the electrolyte salt. And it can be cross-linked into insoluble gel with the high valence metal ions.
Performance
Molecular Weight (million)/adjustable | Degree of Hydrolysis (adjustable) | Solid Content% | Effective PH Range | Residual Monomer Content% |
23-25 | 35-45 | >90% | 5-14 | <0.05 |
21-23 | 35-45 | |||
19-21 | 30-40 | |||
17-19 | 25-35 | |||
15-17 | 25-35 | |||
13-15 | 20-30 | |||
11-13 | 20-30 | |||
9-11 | 10-25 | |||
8-9 | 10-20 | |||
5-7 | 6-15 |
Application
1.Industrial waste water treatment:For the neutral or alkaline waste water with pH value of 7-14, large suspended particles and ions of positive charge,it has the best treating effect, such as the waste water from iron industry,electroplating factory,metallurgical industry, coal washing, etc.
2.Drinking water treatment:When the drinking water still does not meet the standard after the treatment of the precipitation and filtering,then the APAM can be used as the flocculant. Its dosage is 2%-5% of that of the inorganic flocculants, but the effect of former is dozens of times of that of latter.
3.It can be used for the recycling of the loss of brewers' grains in the alcohol plant and starch in the starch factory.
4.in the oil field:It can be used as the water block agent in the oil field,and also the oil-displacing agent during the tertiary recovery.
5.paper-making: It can be applied in the paper-making industry. It can be used as the dispersant,retention aid,etc. in the long fiber paper-making, and also the flocculant for the waste water from the paper-making.
Attention
1.The dry powder should be confected into aqueous solution before using of some consistency to ensure its using effect.
2. Polyacrylamide added should according to the polluted water practical situation.
3. The specific operation of confection are as follows: add certain amount of water into the dissolving jar, then start the blender and sift the dry powder around the vortex of water equably. The speed of blending is about 150~250rpm. And it should be noticed that agglomeration should be avoided after the dry powder particles get into water.Generally speaking, it can dissolve completely within 60min blending.
4. The water which dissolves polyacrylamide is good to be tap water at normal temperature. Improving the temperature suitably can speedup dissolution, but the water temperature should not surpass 50 degree celsius, or the polymer will produce heat-degradation when the temperature is too high, the using effect will be influenced as well.
5. The dry powder state PAM can be stored for over 2 years in dry,dark and cool place, but it is not suitable to be stored after being confected into solution. Solution of negative ion and nonion commonly can be stored no more than one week, while solution of positive ion commonly can be stored no more than two weeks.
6. Ferric ion is the catalyzer which causes polyacrylamide.So in confection, transfer and storage the solution of polyacrylamide, contact between the solution and ferric and ion should be avoided. Stainless steel, glass fiber reinforced plastics, etc. Made device the best choice for confecting polyacrylamide solution.
7.Polyacrylamide is non-poisonous and non-corrosive. If it is stuck to the skin, eye or inhaled into the mouth, water should be used in time to rinse it out.
Polyacrylamide-PAM chemical powder