Polyacrylamide (PAM) is a linear polymer with the chemical formula (C3H5NO)n. It is a hard glassy solid at room temperature, and its products include glue, latex and white powder, translucent beads and flakes, etc. Good thermal stability. It can be dissolved in water in any proportion, and the aqueous solution is a uniform and transparent liquid. After long-term storage, the viscosity of the solution will decrease due to the slow degradation of the polymer, especially when the storage and transportation conditions are poor. [1] Polyacrylamide is used as lubricant, suspending agent, clay stabilizer, oil displacement agent, fluid loss reducer and thickener in drilling, acidizing, fracturing, water plugging, cementing and secondary oil recovery, tertiary oil recovery It has been widely used in oil field and is an extremely important oilfield chemical.
Polyacrylamide is a linear organic polymer, and it is also a polymer water treatment flocculant product. It can absorb suspended particles in water, and play a role of link bridging between particles, so that fine particles can be compared Large flocs, and accelerate the speed of precipitation. This process is called flocculation, because of its good flocculation effect, PAM is used as a flocculant for water treatment and is widely used in sewage treatment. Polyacrylamide mesh: mesh refers to the particle size or thickness of the material, and the mesh is the number of squares per unit area. The general definition refers to the number of meshes in the area of 1 inch * 1 inch, that is, the sieve The number of meshes in the net.mole