ABSORBENT POLYMER AND METHOD OF PREPARING THE SAME

摘要

An absorbent polymer has an absorbency under pressure (AUL) ranging from 20 to 45 g/g; a phase angle (67 ) of swollen gel ranging from 3 to 30 degrees; and a decrease in phase angle ranging from 3 to 35%. Thereby, the absorbent polymer may have favorable gel elasticity under pressure after swelling, so as to reduce adhesion between swollen particles. Accordingly, even after absorbing the liquid to swell the absorbent polymer, the polymer may maintain excellent flow conductivity, thereby reducing a decrease in absorption ability of the absorbent polymer.

主权项

1. A method of preparing an absorbent polymer, the method comprising:
polymerizing a polymer composition, which includes acrylic monomer, polysaccharide and a cross-linking agent; and drying and grinding a hydrogel obtained by the above polymerization, wherein the polysaccharide is included in an amount of 0.1 to 20% by weight to the acrylic monomer in the polymer composition.