Polyacrylamide (PAM) is used in many industries, and among the three types of polyacrylamide (PAM), the widely used genus cationic type (CPAM) is used and anionic type (HPAM). Many customers who are new to polyacrylamide (PAM) products are unclear about cationic type (CPAM) andThe difference between anionic (HPAM) products, such as cationic (CPAM) or anionic polyacrylamide (HPAM) for wastewater treatment This kind of problem. In fact, from the appearance, there is no difference between cationic polyacrylamide (CPAM) and anion, so how to distinguish cationic (CPAM) andAnionic Polyacrylamide (HPAM)? What is the difference between cationic (CPAM) and anionic polyacrylamide (HPAM)? The following Henan Laixing Water Purification will answer this question in detail.
The molecular structure of cationic polyacrylamide (CPAM) is a reticulated polymer, so it is mainly distinguished according to the ionic degree, the higher the ionic degree, the lower the corresponding molecular weight, and the more expensive it is. while anionic polyacrylamide (HPAM) and nonionic polyacrylamide (NPAM). Linear polymers, so when expressing their models, they are mainly expressed according to their molecular weight length. Because of its own molecular structure, its specific model cannot be expressed by ionization. Therefore, it is mainly distinguished according to molecular weight, with higher molecular weight and higher price. The following is a detailed answer to the meaning of polyacrylamide (PAM) molecular weight and ionization index.
1. Molecular weight
The molecular weight of polyacrylamide (PAM) refers to the length of the molecular chain of polyacrylamide (PAM). The higher the molecular weight and the longer the molecular chain, the greater the viscosity of the dissolved solution and the greater the resistance in the solution.
2. Ionic degree
Ionism refers to the charge density of polyacrylamide (PAM), the higher the charge density, the higher the ionism and the lower the molecular weight. The higher the ionization, the higher the floc density formed in the sewage, and the greater the impact on the floc density and water content in the sewage.
In fact, the difference between cationic (CPAM) and anionic polyacrylamide (HPAM) is mainly due to different production processes to meet the needs of different application fields. For example, the question of cationic (CPAM) or anionic polyacrylamide (HPAM) for sewage treatment is not just to choose the right type, generally it is better to do a selection test before use, determine a more accurate model, appropriate molecular weight, ionic degree, after testing the effect, on the machine, This not only reduces the amount of usage, but also reduces the cost.