This article contains useful and practical information about the characteristics, properties and application of polyacrylamide and its various uses. Also, if you decide to buy polyacrylamide to find out the price of buying and selling polyacrylamide , you can use the suggested list of polyacrylamide sellers at the end of the article in the chemical market. Product volume, purity percentage, exchange rate and manufacturing company are generally very important factors in determining the price of chemicals; The price of polyacrylamide is also affected by these things. with the names of the most reputable companies with active history in the field of selling polyacrylamide . It should be noted that the list of suggested sellers at the end of the article is always updated
Polyacrylamide , abbreviated as PAM, is a polymer consisting of acrylamide monomers that are connected to each other from the ends. Polyacrylamide is a glass solid at room temperature and due to the difference in the production methods of this product, it can be produced as a white powder, transparent grains and sheets.
Polyacrylamide has good thermal stability and is soluble in water. The aqueous solution of this compound is clear and transparent, and its viscosity increases as the molecular weight of the polymer increases. This polymer is generally insoluble in organic solvents, except for a few solvents such as acetic acid, acrylic acid, ethylene glycol, glycerol and formamide.
Shopping centers and selling price of polyacrylamide in Tehran and cities
Most of the centers for buying and selling polyacrylamide and other chemicals exist in Tehran, and sellers of polyacrylamide in other provinces and cities in most cases make their purchases from Tehran. For this reason, it is recommended to try to buy chemicals from Tehran if possible. Why so
- Most of the polyacrylamide importing companies are based in Tehran.
- Because the purchase of polyacrylamide in other provinces and cities is done through several intermediaries in most cases, the purchase in Tehran can be more economical and cheaper in terms of price.
- Since you are closer to the main supplier of goods in Tehran and most of the main warehouses of chemicals are located in Tehran, the probability of authenticity and quality of the goods also increases.
But it should be noted that all trading companies based in Tehran are not at the same level in terms of experience, background and quality. For this reason, on this page and other pages related to chemicals on the Jahan Shimi website, we have tried to introduce you to the best and oldest companies active in the field of buying and selling polyacrylamide. The companies listed in the banner at the top of this page or in the “Suggested Vendors” box at the end of this article are all reviewed regularly. It is worth noting that one of the most important conditions for companies to be placed in the mentioned sectors and introduced to buyers is their track record, credibility and experience.
This compound is formed by radical polymerization of acrylamide monomer, but it can also be produced by other methods such as solution polymerization, inverse emulsion polymerization, suspension polymerization, and solid state polymerization.
Application of polyacrylamide
PAM is one of the most widely used types of water-soluble polymers with a large number of free amide groups in its molecular structure. Amide group has high chemical activity and can form a series of derivatives with different types of compounds.
Polyacrylamide is also used in the preparation of glue, paper, and plastics.
Polyacrylamide has the effects of flocculation, thickening, adhesion, colloid stabilization and film production, and is widely used in paper mills, mining, coal washing, metallurgy, oil extraction and other industrial sectors, and is also a material It is an important chemical for water purification.
This polymer is used in agriculture to increase aeration and reduce soil compaction, and improves irrigation and deep rooting, and increases the strength and appearance of crops. It also significantly helps the agricultural sector by reducing the need for water, reducing soil erosion and plant maintenance costs.
Chemical properties of polyacrylamide
Polyacrylamide is very resistant to heat, and its solid form softens at a temperature of 220 to 230 degrees Celsius, and its solution decomposes significantly only at a temperature higher than 110 degrees Celsius.
This substance is insoluble in benzene, toluene , xylene , gasoline , kerosene, diesel fuel, but it is soluble in water and reacts with alkalis with partial hydrolysis.
Physical properties of polyacrylamide
Solubility in water: with rapid mechanical stirring, this material is easily soluble in cold water and forms a clear viscous solution. An increase in temperature does not affect its solubility and only increases the concentration of viscosity.
Stability: This polymer has moderate moisture absorption and if it is not exposed to high temperature, its powder can be stored for a long time. In the solution state, when its concentration is more than 17%, it can be stored for more than a year without a significant change in viscosity. This substance has good stability in the pH range between 3 and 9, and at high pH, its viscosity gradually increases.
Toxicity: The substance itself is non-toxic, but if it contains polymerized monomers (a double bond), it will be toxic to humans. For this reason, after finishing its preparation, a certain amount of sodium bicarbonate should be added to it to destroy the remaining monomers.
Producer of polyacrylamide
Polyacrylamide is a chemical substance that can absorb particles of any type of charge because it has the ability to have positive, negative and neutral charges. It is used in various industries because of its ability to absorb water and gel. This substance is used in the water treatment industry as a coagulant to separate suspended solids, oil, grease, and insoluble oxides, thus helping the clarification process.
The price of polyacrylamide
Polyacrylamide is available as a suitable coagulant with the ability to dissolve in water in ionic and non-ionic forms. When dissolved in water, it increases the viscosity of water and separates suspended and insoluble particles in water, which is why it is used as an important and suitable agent in water purification. This product is used to concentrate liquids, separate organic compounds from thermal systems, and also as a suitable separator in industrial and sanitary wastewater treatment.
The price of anionic polyacrylamide
Anionic polyacrylamide is used as a coagulant to separate positively charged particles and coarse particles about 1 mm in neutral and alkaline conditions. This product is produced by the copolymerization method and it has the ability to be ionized completely in the paper industry and in alkaline conditions. This product is used in various industries such as cosmetic and health products, agricultural industry and water and sewage treatment.
What is polyacrylic?
Polyacrylic is a material that is widely used in industries because it can be used as a coagulant, binder and thickener. This product is often used in the oil and oil derivatives industry, the paper industry to increase strength and improve the quality of papers, and to separate certain metals in mines, and also as an effective factor to speed up drilling operations.
Anionic polyacrylamide
Anionic polyacrylamide is a product that dissolves easily in water. The created solution has a negative charge, which can be used for a long time with high stability. A product shows high efficiency for separation and flocculation due to its special formulation and high molecular mass. This material can also be effective in a wide pH range and has a higher solubility compared to similar samples and provides the highest efficiency in the lowest amount.
Synthesis of polyacrylamide
Polyacrylamide is a chemical compound that has a high molecular weight and is often used to treat industrial and municipal wastewater, and is of great importance in industries due to its high efficiency and cost-effectiveness. Acrylamide is used as a precursor for synthesizing the substance. Of course, its derivatives can also be used for center polyacrylamide. This substance is prepared through the polymerization of acrylamide.
Production of polyacrylamide
For the production of polyacrylamide, two methods are often used, which are used in the solution method of water and the monomer of this material with specific concentrations. This solution must react in the presence of a catalyst such as sodium bisulfite, and the final product must be quickly dried and powdered due to its instability. In the sedimentation method, two substances, water and a solvent, are used, and the product is separated through centrifugation and then dried using a substance such as acetone.
Acrylamide in food
Acrylamide is a compound that is used as a single unit or in several units as a chemical compound to produce polymer materials and in products such as polyacrylamide. This material is produced and marketed in two solid and liquid forms with high solubility in water. This substance is used in the process of cooking food when the temperature is higher than 120 degrees Celsius, such as when frying or grilling or baking bread, cakes and sweets. Normally, with the increase in food cooking temperature, the amount of production of this substance also increases.
Environmental effects of polyacrylamide
Concerns have been raised that polyacrylamide used in agriculture may contaminate food with acrylamide, a known neurotoxin and carcinogen. But research has shown that the amount of residual acrylamide in these products is much less than to cause concern.
Additionally, there are concerns that polyacrylamide may depolymerize and form acrylamide, but research has shown that this material does not depolymerize significantly even in cookware.