Synthetic method for high-performance water-absorbent resin processed by electron beam irradiation

The invention discloses a synthetic method for high-performance water-absorbent resin processed by electron beam irradiation. The synthetic method comprises the following steps: (1) adding 20-80 parts by weight of polymeric monomers, 0.02-5 parts by weight of monomers, 0.001-1 part by weight of a cross-linking agent and 0.01-5 parts by weight of other additives into a reaction kettle and uniformly mixing to obtain a polymeric feed liquid, wherein the polymeric monomers are acrylic acid with the neutralization of 50-90 percent; (2) placing the flowing polymeric feed liquid under radiation of electron beams emitted by an electron accelerator to obtain a water-absorbent gel; (3) cutting, drying, crushing and screening the water-absorbent gel to obtain semi-finished particles; (4) performing surface crosslinking treatment on the semi-finished particles to obtain the high-performance water-absorbent resin finished product. Electron beams produced by the industrial electron accelerator irradiate acrylic acid monomer solutions to enable the feed liquid to finish polymerization reaction at the flowing instant so as to synthesize the high-performance water-absorbent resin.