吸水性樹脂及びその製造方法

Abstract

The present invention provides a water-absorbent resin and a method for producing the same. [Solution] A method comprising: performing a radical polymerization reaction on a water-absorbent resin composition containing an aqueous solution of an unsaturated monomer, a polymerization initiator, and a radical polymerization crosslinking agent to obtain a gel; shearing the gel using a twisting machine having a blade with a parallelogram cross-section and a perforated plate containing multiple holes to obtain multiple water-absorbent resin particles; and performing a surface crosslinking reaction on the multiple water-absorbent resin particles to obtain a water-absorbent resin. This makes it possible to improve the surface porosity, absorption rate, and liquid conductivity of the obtained water-absorbent resin.

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