Polyacrylamide is a high-molecular polymer. The products of polyacrylamide can be divided into two categories, mainly in the form of dry powder and colloid. So since polyacrylamide is a high molecular polymer, what are the main ingredients?
Polyacrylamide can be divided into three categories according to the different molecular weights. cationic polyacrylamide High molecular weight (≥7000000), medium molecular weight (2000000-4000000), and low molecular weight are below 1000w, and then according to the different structure, it can be divided into non-ionic , Anions and cations. The anionic type is mainly PAM hydrolyzate (HPAM).
Polyacrylamide has a large number of amide groups in its main chain and has high chemical activity. It can be modified to produce many polyacrylamide derivatives. Products have been widely used in papermaking, mineral processing, oil extraction, metallurgy, building materials, sewage treatment and other industries.
As a lubricant, suspending agent, clay stabilizer, oil displacing agent, water loss agent and thickening agent, polyacrylamide is obtained in drilling, acidification, fracturing, water blocking, cementing and secondary oil recovery, tertiary oil recovery, etc. . Widely used, it is a very important oil field chemical.
As the molecular weight of the polymer increases, the viscosity of the polyacrylamide solution increases because the viscosity of the polymer solution is caused by the interaction of the molecules during the movement of the molecules. polyacrylamide suppliers When the relative molecular mass of the polymer is about 106, the polymer clusters begin to penetrate each other enough to affect the scattering of light.
When the content is slightly higher, mechanical entanglement is sufficient to affect the viscosity. When the content is relatively low, the polymer solution can be regarded as a network structure, and the mechanical entanglement and hydrogen bonds between the chains form the nodes of the network. At a higher level, the solution contains many linked contacts that gel the polymer solution. Therefore, the larger the relative molecular weight of the polymer, the easier it is to form chains around the molecule.
