Its polymer is soluble in water, so it is used to produce flocculants for water treatment, especially for the flocculation of protein and starch in water. In addition to flocculancy, it also has excellent properties such as thickening, shear resistance, resistance reduction, and dispersion. When used as a soil amendment, it can increase the water permeability and moisture retention of the soil; used as a paper filler adjuvant to increase the strength of paper to replace starch and water-soluble ammonia resin; used as a chemical grouting agent for tunnel excavation, oil well drilling, mine and dam plugging in civil engineering; used as a fiber modifier to improve the physical properties of synthetic fibers; used as a preservative, it can be used for the anti-corrosion of underground components; It can also be used as additives in the food industry, dispersants for pigments, and printing and dyeing pastes. In combination with phenolic resin solution, it can be used as an adhesive for glass fiber, and together with rubber, it can be used to make a pressure-sensitive adhesive.