LYNXWATER anionic polyacrylamide are co-polymers of acrylamide with increasing proportions of acrylate groups, which give the polymers negative charges, and thus anionic active character, in aqueous solution. We can offer two types of products of anionic polyacrylamide powder
and anionic polyacrylamide emulsion.
Features: Long molecular chain, strong bridging adsorption, fast sedimentation, good salt resistance and stability.
Application: APAM is widely used in Oil & Gas, water treatment, textile, printing and dyeing, papermaking, mineral processing, coal washing, medicine, sugar, breeding g, buildin0materials, agriculture and other industries. It is known as the most widely used additive..
2.2.1Main Specifications of Anionic Polyacrylamide (PAM)
| Products | Product Code | Anionic Charge | Molecular Weight |
| Anionic PAM Powder | LW 5712 | Slight | Medium |
| Anionic PAM Powder | LW 5710 | Slight | High |
| Anionic PAM Powder | LW 5713 | Slight/Low | Medium |
| Anionic PAM Powder | LW 5715 | Low | Medium |
| Anionic PAM Powder | LW 5718 | Low | High |
| Anionic PAM Powder | LW 5714 | Medium | Medium |
| Anionic PAM Powder | LW 5716 | Medium | Medium |
| Anionic PAM Powder | LW 5718 | Medium | High |
| Anionic PAM Powder | LW 5719 | Medium | High |
| Anionic PAM Powder | LW 5720 | Medium | Very High |
| Anionic PAM Powder | LW 5724 | Medium | Ultra High |
| Anionic PAM Powder | LW 5726 | Medium | Ultra High |
| Anionic PAM Powder | LW 5716 | Medium | Medium |
| Anionic PAM Powder | LW 5718 | Medium | High |
| Anionic PAM Powder | LW 5720 | Medium | Very High |
| Anionic PAM Powder | LW 5726 | Medium | Ultra High |
| Anionic PAM Powder | LW 5781 | Medium | High |
| Anionic PAM Powder | LW 5726 | Medium | Ultra High |
| Anionic PAM Powder | LW 5781 | High | High |
| Anionic PAM Emulsion | LW 572E | Medium | High |
| Anionic PAM Emulsion | LW 575E | Medium | Low/Medium |
2.2.2 Anionic Polyacrylamide Flocculants
The solutions of LYNXWATER anionic polymers must be prepared in suitable plants equipped with dry powder feeding and dispersion units and with continuous and moderate agitation. The dissolution water must have a temperature included between 10°C and 40 °C; For a correct use of LYNXWATER anionic polyelectrolyte and in order to achieve the best possible results, it is necessary to low a “maturation” time of 60 minutes. When treating turbid water, the flocculants solution must be added to the water in a point of average turbulence, in order to achieve a thorough and homogeneous mixing without impairing the flock formation. Recommend operating concentration of anionic polyacrylamide polymer is 3g/l, and the maximum operating concentration is 15g/l. For an optimum performance on specific applications on anionic polymer, please consult with LYNXWATER team.
Above is only a brief introduction and regular specifications. For more technical details (COA&TDS&SDS, Certificate of Analysis etc.) or any customized specifications, please contact us.
2.2.3 Instructions
- Tips for Using Polyacrylamide in Cold Temperature
Polyacrylamide as a polymer organic polymer, when dissolved, it will take a certain time to stir for the molecular chain of polyacrylamide to be fully opened. When the water temperature is too low, the dissolution rate of polyacrylamide will slow down. In winter, the mixing time of polyacrylamide is usually extended for half an hour for molecular chain to be fully expanded. If it is available, to heat the water to 20 to 30 degrees is also a good method to speed up dissolving. The water temperature cannot be too high, otherwise the high water temperature will accelerate the degradation of polyacrylamide, and affect the use effect.
- How to Choose Polyacrylamide, Powder or Emulsion?
Unlike powder polyacrylamide, there is no drying process in the manufacturing process of emulsion polyacrylamide. Therefore, the molecular weight and water solubility of the emulsion polyacrylamide are higher than that of the same kind of powdery polyacrylamide.
Oil coated water emulsion is usually insoluble in water. The storage temperature of the emulsion is best between 0℃and 30℃, and the storage time of the emulsion is 12 months. The temperature of the emulsion is lower than that of water. The frozen emulsion can be continued after thawing. The greatest advantage of powder is that it is convenient for transportation and storage for a long time, and there is at least two years.
- Anionic Polyacrylamide in Enhanced Oil Recovery (EOR)
The performance of polyacrylamide flocculant anionic in thickening, flocculation and rheological regulation plays an important role in oil production. It is widely used in drilling, water plugging, acidified water, fracturing, well washing, completion, drag reduction, scale prevention and oil displacement. In general, the use of polyacrylamide flocculants is to improve the oil production rate (EOR). Especially many oilfield has entered the two times, three times of mining, reservoir depth is generally above 100om, some reservoir depth of 7000m, heterogeneity and offshore oil formation made more stringent conditions for oil production, oil production and deep sea oil corresponding to PAM also proposed new requirements, which is resistant to shear requirements high temperature (100oC, up to 200oC), high calcium ion, magnesium ion, seawater degradation.
- Drilling fluid treatment agent
AMPs graft copolymer with acrylamide, AMPS copolymer with acrylamide and N, N one or two acrylamide, graft copolymer of AMPS and humic acid and acrylamide has good fluid and salt resistance and temperature resistance in fresh drilling fluid, salt water drilling fluid and saturated brine drill. The clay dispersion and other factors cause the increase of viscosity of the drilling fluid, and the viscosity reducing agent is needed to control the rheology of the drilling fluid at this time. The common drilling fluid, the largest amount of viscosity reducing agent for ferric chomium lignin sulfonate viscosity reducing agent (FCLS). The three copolymer of AMPs and acrylic acid and methacrylic acid is used as a drilling fluid viscosity reducer instead of FCLS, that is, FCLS has good salt resistance and temperature resistance, and also overcomes the toxicity of FClS. The results show that the three copolymer is more capable of resisting the high valence metal ions than the two element copolymer.
- Completion Fluid and Workover Fluid Additive
AMPS with other copolymers can be used to prepare seawater and brine thickener, the completion fluid viscosity increased more than 4 times, and has good thermal stability which will overcome the traditional polymer in brine system viscosity decreased the disadvantages.