Some information about high viscosity polyacrylamide

High viscosity polyacrylamide is a new type of polymer material with high adhesion and polymerization, which is widely used in various fields.




What are the techniques for dissolving high-viscosity polyacrylamide?

When preparing polyacrylamide solution, first dissolve polyacrylamide, and then add it to water, because polyacrylamide is a polymer, in order to ensure its full dissolution, it must be carried out at room temperature. This requires us to choose the appropriate dissolution method when dissolving polyacrylamide, which is introduced to you below.




Advantages of high viscosity polyacrylamide

High viscosity polyacrylamide is a new type of polymer material with high adhesion and polymerization, which is widely used in various fields.




Features of polyacrylamide

Polyacrylamide is a water-soluble linear polymer formed by free radical initiation polymerization of acrylamide (AM) monomer, which has good flocculation and can reduce the frictional resistance between liquids, and can be divided into four types according to ionic characteristics: non-ionic, anionic, cationic and amphoteric. Polyacrylamide (PAM) is insoluble in most organic solvents, such as methanol, ethanol, acetone, ether, aliphatic hydrocarbons and aromatic hydrocarbons, except for a few polar organic solvents, such as acetic acid, acrylic acid, chloroacetic acid, ethylene glycol, glycerin, molten urea and formamide. However, these organic solvents have limited solubility and often need to be heated, otherwise they have little application value. It can be dissolved in water in any proportion, and the aqueous solution is a uniform and transparent liquid. The size of the molecular weight has little effect on the solubility, but when the solution concentration is higher than 10%, the polymer with high molecular weight can present a gel-like structure due to the bonding of hydrogen atoms between molecules. High molecular weight solutions are pseudoplastic fluids.




The role of industrial glucose

1. Used in medicine, regulate the acid-base balance in the human body to restore the normal function of nerves, based on the same purpose, for food additives; 2. Used as a water quality stabilizer, its excellent performance is manifested in: (1) It has obvious coordination effect, suitable for molybdenum, silicon, phosphorus, tungsten, nitrite and other formulas, due to the influence of coordination effect, the corrosion inhibition effect is greatly improved; (2) Contrary to general corrosion inhibitors, the corrosion inhibition rate increases with the increase of temperature; (3) The technical requirements of scale inhibition ability have strong complexing ability for calcium, magnesium and iron salts, especially for Fe3+; (4) As a circulating cooling water corrosion and scale inhibitor, it is incomparable with other corrosion and scale inhibitors currently used, and can achieve the role of eliminating pollution; 3. Used in the food industry, because it can effectively prevent the occurrence of low sodium syndrome, it can be used as a food additive. Sodium gluconate and potassium gluconate have excellent taste thresholds. Sodium gluconate is non-irritating, no bitter taste, salt taste quality is close to table salt, the threshold is much higher than other organic salts, which is 5 times that of table salt (inorganic salt), 2.6 times that of sodium malate, and 16.3 times that of sodium lactate. Sodium gluconate and potassium gluconate are used in food processing to adjust pH, improve food taste, replace salt processing into healthy low-salt or salt-free (sodium chloride-free) food, and play a great role in improving human health and enriching people's lives. 4. During sewage treatment commissioning, industrial glucose is added to provide a carbon source, which is to better cultivate bacteria and improve the biochemistry of sewage. If the COD and BOD in the operating system are not enough to supply the growth and reproduction of strains, additional dosing is required to prevent sludge aging and reduced biological activity. 5. It can be used directly in the food and pharmaceutical industries, as a reducing agent in the printing and dyeing tanning industry, and glucose is commonly used as a reducing agent in the mirror industry and the silver plating process of hot water bottles. In industry, a large number of glucose is also used as raw material to synthesize vitamin C (ascorbic acid)




What is a water purifier

Water purification agents may be unfamiliar to some people who have not been exposed to environmental protection, but in fact, water purification agents are inseparable from each of us, because we often drink water, including domestic sewage, washing dishes and going to the toilet. All need to use water purifiers. In addition to domestic sewage, many enterprises also produce a large amount of wastewater, such as paper mills, printing and dyeing factories, etc.




The important role of polyacrylamide in water treatment

1. Adsorption bridge: PAM molecular chains are fixed on different particle surfaces, and a bridge of polymer is formed between the particles, so that the particles form aggregates and settle. 2. Surface adsorption: various adsorption of polar group particles on PAM molecules. 3. Enhancement: PAM molecular chain and dispersed phase implicate the dispersed phase through various mechanical, physical, chemical and other effects to form a network, thereby playing an enhanced role. These principles of action are the most fundamental reasons why the flocculant polyacrylamide can exert excellent water treatment effect. PAM is the abbreviation of polyacrylamide with extremely high molecular flocculant, which is commonly used in sludge dewatering, sewage flocculation, decolorization, turbidity removal, filtration aid, thickening and other purposes. The molecular weight of PAM flocculant is between 5 million and 25 million, and the commonly used models are divided into three types: cationic, anionic, and non-ionic. Many customers have encountered the poor flocculation effect of adding polyacrylamide during sewage treatment, and today we in Shaanxi Botaida will briefly talk about the reasons that affect the flocculation effect of PAM. PAM flocculant is most commonly used in sewage treatment, adding a small amount of polyacrylamide solution to sewage can show strong flocculation function, but sometimes there will be poor flocculation effect, this reason can be basically divided into three categories: 1. The PAM model is selected incorrectly, and cationic polyacrylamide is suitable for sewage flocculation treatment and organic sludge dewatering process with high toxicity and organic substances when it is used as sewage flocculation. Anionic PAM is suitable for flocculation treatment of suspended particles with large particles, high turbidity, and positive charge sewage, and nonionic polyacrylamide can reflect strong flocculation function in acidic water quality due to the activity of acylamino on the side chain of non-ionic functional group molecules. 2. The proportion of PAM polyacrylamide when dissolved, the dissolution ratio of anionic PAM and non-ionic polyacrylamide is one thousandth, and the optimal dissolution ratio of cationic polyacrylamide is two thousandths. 3, dissolved water temperature, PAM for white crystal particles, use need to be dissolved with clean tap water, the general dissolution time is 60 minutes, but the autumn and winter dissolution time will increase generally in about 2 hours, if the dissolved water temperature can shorten the dissolution time, the general temperature is controlled below 60 °C, it is recommended to be between 40-50 °C. 4, dosage, dosage is generally according to the water quality of different dosage will be different, in the sewage dosage less can not achieve the flocculation effect, the dosage will appear liquid viscosity occurs, generally before the use of the machine is recommended to do beaker flocculation experiment.




What is the difference between polyacrylamide and polyaluminum chloride?

Polyacrylamide and polyaluminum chloride are two commonly used flocculants in the water treatment industry, and they are used as water treatment to play the role of coagulation precipitation, so many people are not clear about their differences, today Xiaoqi will talk to you about the specific difference between polyacrylamide and polyaluminum chloride. Polyacrylamide is an organic polymer, also known as organic flocculant, which can be divided into three types: cationic, anionic and non-ionic, and the appearance is white dry powder or emulsion. Mainly used in sewage treatment, raw water treatment and industrial water treatment; Polyaluminum chloride is an inorganic polymer, also known as inorganic flocculant, the appearance of the color is diverse, mainly according to its content and change, brown, light brown, yellow, the higher the aluminum content, the lighter the color. The effect of treating sewage is also good, it has a wide range of applications, and is widely adapted to various waters. It can quickly form large alum flowers and has good precipitation performance. The suitable pH range is wide, and the pH value and alkalinity of the treated water decrease is small. When the water temperature is low, it can still maintain a stable precipitation effect. The alkalinization degree is higher than other aluminum salts and iron salts, and the effect on equipment erosion is small. To sum up, the frequency of use of polyacrylamide in sewage treatment is given, but the use of polyaluminum chloride is also a lot, because they are different types of flocculants, so they can be used complementarily in use, and their role must be one plus one greater than two.




How to escape from an earthquake?

Earthquake response strategy 1: turn off open flames and power supplies as soon as possible When an earthquake strikes, if your kitchen is boiling water or cooking, remember to turn off the fire and power as soon as possible. Violent shaking occurs during an earthquake, and if there is an open flame in the home or an open power supply, it is easy to catch fire. Shutting down ignition and power sources is an important factor in reducing earthquake damage.




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