Swelling behaviors of superabsorbent composites based on acrylic acid/acrylamide copolymer and acid-modified attapulgite

Attapulgite was helpfully for the formation of a porous three-dimensional network structure of the absorbing materials, can significantly increase the water absorption and retention of sand-fixing materials under a wide pH range of 5–9 and the ultrasonic power was 200 W and 300 W.