Polyacrylamide has four characteristics of flocculation, thickening, adhesion and resistance reduction. The difference of various characteristics determines the wide application of polyacrylamide. For example, because flocculation can be used as a water treatment agent, drag reduction can be used in the tertiary recovery of oil field drilling, as a thickener in industries requiring thickening such as glue and mortar, and adhesion can be used as a binder in soil conditioning a...