1. The anionic polyacrylamide is different from other types, its molecular weight can be very high, many "degeneration" products also are anionic products "relatives", can be applicable to the pH value is neutral or alkaline liquid, plastic and positively charged inorganic suspended in the liquid flocculation reaction.

2. Cationic polyacrylamide mainly dehydration, appears in the water treatment process is mainly used as sludge dewatering agent, now have used for oily wastewater treatment of oil field, is suitable for the negatively charged organic sewage flocculation of suspended solids.

3. The application of nonionic polyacrylamide is targeted, such as the unique application in preventing erosion of soil and water conservation, is cannot replace by other products. Mainly used in organic, inorganic hybrid state separation of suspended solids, acidic or neutral solution.

4. The zwitterionic polyacrylamide production manufacturer rarely at present, mainly domestic some major manufacturers in the production and manufacturing, in the field of water treatment is suitable for the nature of the suspended matter and PH changes is strong, sewage water quality is not stable.