High water-absorbent resin has been prepared using the useless acrylic fibres alkaline hydrolysis under the normal pressure, using the N-hydroxymethyl propylene acryl amine as the crosslinked agent.

• 将废旧腈纶用常压碱法水解,用N羟甲基丙烯酰胺作交联剂制备高吸水性树脂。