Polyacrylamide 9003-05-8 Polymer Flocculant Powder High Molecular Weight

Pam chemical water treatment high molecular weight polymer flocculant

Polyacrylamide is a water-soluble polymer. It is mainly used for flocculation, precipitation and clarification of various industrial wastewaters such as wastewater treatment in iron and steel plants, wastewater from electroplating plants, metallurgical wastewater, coal washing wastewater, and sludge dehydration. It can also be used for the clarification and purification of drinking water. Because its molecular chain contains a certain number of polar groups, it can absorb solid particles suspended in water, bridge between particles or make particles agglomerate to form large flocs through charge neutralization, so it can accelerate the suspension The sedimentation of the particles has a very obvious effect. It has the function of accelerating the clarification of the solution and promoting the filtration.

The influence of molecular weight on the viscosity of polyacrylamide
The viscosity of the polyacrylamide solution increases as the molecular weight of the polymer increases. This is because the viscosity of the polymer solution is caused by the interaction between molecules when they move. When the relative molecular weight of the polymer is about 106, the polymer coils begin to penetrate each other, enough to affect the scattering of light. When the content is higher, mechanical entanglement is sufficient to affect the viscosity. When the content is low, the polymer solution can be regarded as a network structure, and the mechanical entanglement and hydrogen bonds between the chains together form the nodes of the network. At higher levels, the solution contains many chain attachment points, making the polymer solution gelatinous. Therefore, the higher the relative molecular mass of the polymer, the easier it is to form chain entanglements between the molecules, and the greater the viscosity of the solution.