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Acrylic Acid Maleic Acid Copolymer (MA-AA)
Properties:
An acrylic acid maleic acid copolymer is one of the low molecular weight polyelectrolytes. It is prepared by copolymerization of maleic acid and acrylic acid (in a certain ratio). The acrylic acid maleic acid copolymer (MA-AA) has an excellent dispersant performance of salts. Such as carbonates and phosphates. Its thermal stability is so good. Even at high temperatures of 300℃, it can still be used in the whole intestines.
The copolymer of maleic and acrylic acid has good compatibility and synergistic effect. When people use it with other water treatment agents. This copolymer provides excellent resistance to scale formation (including phosphates).
Due to its excellent scale inhibition performance and high-temperature resistance. Engineers often use it used in various circulating cooling water systems. Such as low-pressure boilers, centralized heating, and central air conditioning systems.
In addition, people alse use acrylic maleic copolymer as a chelating dispersant in the textile printing and dyeing industry.
Methacrylic acid copolymer type C is mainly used as pharmaceutical excipients (pharmaceutical intermediates). Its appearance is white or milky white, and its state is fibrous powder or granules. The methacrylic acid copolymer type C is insoluble in gastric juice, can form salt when meeting alkali, and can be dissolved in weak alkaline solution; Thereby providing an enteric coating that dissolves in an intestinal fluid environment of pH 5.5 and above.
CAS No.:
26677-99-6
Structure Formula:
Specifications:
| Item | Index |
|---|---|
| Appearance | Brown transparent liquid |
| Solid content, % | 48.0 Min. |
| Free monomer (as maleic acid), % | 9.0 Max. |
| Density (20℃), g/cm3 | 1.18 Min. |
| pH (1% solution) | 2.0~3.0 |
Usage:
The acrylic acid maleic acid copolymer is used in circulating cool water system, medium or lower pressure boiler and distillation system. Because the thermal stability of this copolymer is excellent in high temperature. Except for this, MA-AA copolymer can be used alone or together with other organic phosphates.
When you use MA-AA copolymer together with other water treatment chemicals, the dosage of 2-10 mg/L is preferred. When you use it as woven & dyeing and accessory detergent, the dosage should be determined by experiments.
Applications:
Acrylic maleic copolymer enhanced ultrafiltration treatment of nickel-containing wastewater
When used as a complexing agent, engineers use this copolymer to study the enhanced ultrafiltration treatment of nickel-containing wastewater by polymer complex metal ion. People also use AA-MA copolymer to study the mass ratio of polymer to metal ion (mP/mM), solution pH, salt concentration, operation The influence of pressure, running time, etc. on the rejection of nickel ions.
The results show that the pH value of the solution has a great influence on the retention rate of metal ions. At a certain mP/mM, the pH value is in the range of 3 to 7. It is advantageous for the retention of nickel ions when appropriately increasing the pH value of the solution.
At a certain pH, the rejection R of nickel ions increases with an increase in mP/mM. When the solution pH is 6.0 and mP/mM=7, the rejection of nickel ions can reach 99% or more. The presence of NaCl and Na2SO4 reduces the rejection of nickel ions.
Packing and storage:
200L plastic drum, IBC (1000L), customers’ requirements.
Storage for one year in a shady room and dry place.
Safety Protection:
Acidity. Avoid contact with eye and skin. Once contacted, flush with water.