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The classification and application of polyacrylamide

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Polyacrylamide (PAM) is polymerized by acrylamide monomer, it is a water-soluble linear polymer substance. The chemical properties of Monomer acrylamide are very active, in the double bond and amide group can carry out a series of chemical reactions


The classification and application of polyacrylamide

Polyacrylamide (PAM) is polymerized by acrylamide monomer, it is a water-soluble linear polymer substance. The chemical properties of Monomer acrylamide are very active, in the double bond and amide group can carry out a series of chemical reactions, we can products with different charge by using different processes and different functional groups: anion, cationic, non-ionic, zwitterionic polyacrylamide. The average molecular weight of PAM ranges is from thousands to millions, and it has several functional groups along the bond molecule. Most of PAM can be ionized in water. It belongs to the polymer electrolyte. According to the properties of its dissociable groups, it can be divided into anionic, cationic and non-ionic types. Different types of PAM have different uses. The following are the uses of different types of PAM.

Anion Polyacrylamide:

Anionic polyacrylamide (APAM) appears as white granules with molecular weights ranging from 6 million to 25 million. Mainly used as flocculant: for wastewater with coarse suspended particles, high concentration, particles with a positive charge, water PH value is neutral or alkaline , because anionic polyacrylamide molecular chain contains a certain amount of polar base can adsorb suspended solid particles in water, so that the bridge between particles formed a large flocculant. Therefore, it accelerates the settlement of particles in the suspension, accelerates the clarification of the solution, promotes filtration and other effects.

1, Anionic polyacrylamide t is widely used in the treatment of chemical industry wastewater, waste liquid, municipal sewage treatment. Water industry, high turbidity water purification, settling, coal washing, mineral processing, metallurgy, iron and steel industry, zinc, aluminum processing industry, electronic industry and other water treatment.We recommend the models of ASIAFLOC A72015,ASIAFLOC A73018,ASIAFLOC A73016,ASIAFLOC A71012.

2, the anionic polyacrylamide is used in the petroleum industry: drilling mud, waste mud treatment, preventing water channeling, reducing friction, improving recovery.We recommend the models of ASIAFLOC A73019,ASIAFLOC A73020.

3, used for textile sizing agent, the slurry performance is stable, less pulp, fabric break rate is low, cloth surface is smooth.ASIAFLOC A72818.

4, used for paper industry, one is to improve the retention rate of filler, pigment, etc. To reduce the loss of raw materials and environmental pollution; Two is to improve the strength of paper (including dry strength and wet strength), in addition, the use of PAM can also improve the paper tear resistance and porosity, to improve the visual and printing performance, but also used in food and tea packaging paper.ASIAFLOC A73016,ASIAFLOC A74030.

5, other industries, food industry, for sugarcane sugar, sugar beet sugar production of sugarcane juice clarification and phosphorus float extraction of syrup. Enzyme preparation fermented liquid flocculation clarifying industry, also used in feed protein recovery, stable quality, good performance, recovery of protein powder to chickens and raising the survival rate of weight gain, no adverse effects of egg production, synthetic resin coating, civil water plugging grouting materials, building materials industry, improve the quality of cement, construction adhesive, caulking repair and plugging agent, soil improvement, electroplating industry, printing and dyeing, etc.ASIAFLOC A72515,ASIAFLOC A73515.

In the process of use, anion Polyacrylamide with suitable molecular weight should be selected by small test, which can not only enhance the use effect, but also reduce the use cost.

Cationic Polyacrylamide

Cationic polyacrylamide are positive in acidic or alkaline medium , it’s molecular weight is usually lower than anion or non-ionic polyacrylamide, the purification of sewage performance is mainly obtained through charge neutralization. The main function of this kind of flocculant is to flocculate the negative charge, and has the function of turbidity removal and decolorization. In the wine factory, MSG factory, sugar factory, meat products factory, beverage factory, printing and dyeing factory and other waste water treatment,the using result of cationic polyacrylamide is several times or dozens of times higher than with anionic polyacrylamide, non-ionic polyacrylamide or inorganic salt effect, because this kind of waste water is generally with negative charge.

Cationic polyacrylamide is suitable for high-speed centrifuge, belt filter press, plate and frame filter press and other special sludge dewatering machinery, with the formation of flocculation fast, thick flocculation, extrusion and shearing resistance, good agglomeration, easy to peel with the filter cloth and other characteristics. Therefore, high dehydration rate, low filter cake water content, less dosage, can greatly reduce the cost of users. Can also be used for hydrochloric acid, sulfuric acid and other liquid concentration, separation and purification of turbidity suspended substances contained in them. Therefore, this product is widely used in municipal sewage treatment plant, brewery, food factory, tannery, paper mill, petrochemical plant, oil field, metallurgy, chemical industry and cosmetics and other sludge dewatering treatment.

In addition, cationic Polyacrylamide is also divided into different degrees of ion, for the dehydrated sludge, flocculant with different degrees of ion can be selected after a simple jar  test, choosing the best suitable polyacrylamide, so that the best flocculant effect can be obtained, but also can make the dosage of the least, saving cost.

We recommend our models of ASIAFLOC C80510,ASIAFLOC C80102,ASIAFLOC C83012,ASIAFLOC C84008,ASIAFLOC C85008,ASIAFLOC C86008,ASIAFLOC C87512.

Non-ionic polyacrylamide

Due to its molecular chain contains a certain amount of polarity gene which can absorb the water of suspended solid particles, the particles can form large flocculate, accelerating the settlement of particles in suspension, there is a very significant to speed up the solution of the clear, promoting the filtering effect, such as widely used in chemical industrial wastewater and waste liquid treatment, municipal sewage treatment. Especially when the sewage is acidic, this product is the most suitable. It can be used with inorganic flocculant polyiron, polyaluminum and other inorganic salts.we recommend the models of ASIAFLOC N90510,ASIAFLOC N90310

Amphoteric polyacrylamide

Zwitterionic polyacrylamide is made of vinyl amide and acrylamide monomer after hydrolysis copolymerization. Zwitterionic irregular polymers with both positive and negative charges in the molecular chain.

1, used for sludge dewatering.according to the nature of the sludge can be selected the corresponding model of this product, can effectively in the sludge into the press filter before sludge dewatering, dewatering, flocculation group is large, non-stick filter cloth, press filter is not scattered, thick mud cake, dehydration efficiency is high, the mud cake moisture content is below 80%.

2, used for flocculant of river water as water source of tap water.it has advantages of small consumption, good effect, low cost,it have better result if use mixing with some inorganic flocculant, it will become the efficient flocculant for treatment of the Yangtze River, the Yellow River and other basins of the water plant .

3, papermaking reinforcer and other additives. Improving the retention rate of filler, pigment and paper strength,it can be  used in the oilfield as clay swelling agent, oil field acidification thickener.

4, used for textile sizing agent.slurry performance is stable, less pulp, fabric break rate is low, cloth surface is smooth.




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