| abstract |
The invention discloses a water-soluble solid polyacrylamide. The water-soluble solid polyacrylamide is formed by chain polymerization and copolymerization of at least four types of monomers: non-ionic monomer A, non-ionic monomer B, cationic monomer and anionic monomer. Solve the problems of low molecular weight, low effective matter content, poor storage stability, and short shelf life of aqueous solution-type amphoteric polyacrylamide products, and obtain higher molecular weight products with high effective matter content, low transportation costs, and are not easy to hydrolyze and mildew. The invention also discloses the use of the water-soluble solid polyacrylamide in the reinforcement and/or modification of natural fiber materials or semi-synthetic fiber materials, which can promote the improvement of water filtration performance and help to improve the strength. |