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18
2021
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03
What is flocculant polyacrylamide and what are the characteristics of flocculant polyacrylamide
We often use polymer materials in our lives, plastic is a kind of polymer materials, it is durable, many occasions will be used. Organic matter can be miscible with each other. In the industrial field, polymer materials are also widely used. Flocculant polyacrylamide is one of them. It can reduce the friction resistance between liquids. It is often used in water treatment and can precipitate impurities in sewage. Today, let's take a look at what flocculant polyacrylamide is and what are the characteristics of flocculant polyacrylamide.
What is the flocculant polyacrylamide
Polyacrylamide flocculant is a water-soluble polymer, insoluble in most organic solvents, has good flocculation, can reduce the friction resistance between liquids, according to the characteristics of ions can be divided into non-ionic, anionic, cationic and two types. Polyacrylamide flocculants are widely used in thickening, stabilizing colloids, drag reduction, bonding, film formation, biomedical materials, etc. Water treatment as a coagulant, flocculant, sludge dehydrating agent. It is used as dewatering agent and oil displacement agent in oil drilling and production. In the paper making process as retention aid, reinforcing agent.
flocculant polyacrylamide
Characteristics of Flocculant Polyacrylamide
Long chain (thread) like molecular structure and polyacrylamide molecules contain a large number of active groups. Polyacrylamide is a linear polymer, because each molecule is composed of more than one hundred thousand monomer polymerization, the molecular chain is quite long. If it is completely straightened, its length is tens of thousands of times longer than ordinary molecules (such as sucrose) or ions (such as ca2). Because its molecules are long and thin, they bend or curl into irregular curved shapes. This long molecular chain projects many chemically active groups to the outside: amido-conh2 and carboxyl-cooˉ. The amide group is a non-ionic group, but is also good at forming a secondary bond and adsorbing and linking with the active group of other substances.
Application of Flocculant Polyacrylamide
1. Oil well cement admixture
The terpolymer prepared by AMPs, methacrylic acid and acrylamide is suitable for all kinds of brine drilling fluids and plays a good role in high temperature retarding.
2. Used as drilling fluid regulator and fracturing fluid additive
As a drilling fluid modifier, partially hydrolyzed polyacrylamide (HPAM), which is obtained by hydrolysis of polyacrylamide, is often used. Its function is to adjust the rheology of drilling fluid, carry rock cuttings, lubricate the drill bit, and reduce fluid loss. The drilling fluid modulated with polyacrylamide has a low specific gravity, which can reduce the pressure and blockage of oil and gas layers, easily find oil and gas layers, and is conducive to drilling. The drilling speed is 19% higher than that of regular drilling fluid and about 45% higher than the mechanical drilling speed.
What is the flocculant polyacrylamide, the characteristics of the flocculant polyacrylamide everyone remember it, the role of the flocculant polyacrylamide and he itself contains a large number of active groups are inextricably linked, the more active groups, he will be around the material adsorption, the formation of sediment, also has a very good performance at high temperatures, interested friends to see it.
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