| production method | weigh a certain amount of DM and a certain amount of acrylic acid into a reactor, add water, put it into an ice bath, add sodium sulfite under stirring, adjust the pH value with hydrochloric acid, add crosslinking agent N, N'-methylene bisacrylamide and initiator azobisisobutyronitrile, pour it into a special reactor after full stirring, and add nitrogen into a microwave oven for 30min, under a certain amount of radiation intensity, the reactant is irradiated for a certain period of time after polymerization is completed, taken out for cooling, drying, and pulverized to obtain amphoteric super absorbent resin. |