Swelling Behaviors of Superabsorbent Composites Based on Acrylic Acid/Acrylamide Copolymer and Attapulgite

Autor: Hanru Ren, Jun Ren, Ling Tao, Xuechang Ren
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Minerals, Vol 14, Iss 6, p 593 (2024)
Druh dokumentu: article
ISSN: 2075-163X
DOI: 10.3390/min14060593
Popis: The swelling behaviors and water retention of superabsorbent sand-fixing materials prepared from acrylic acid/acrylamide copolymer (AA/AM) and acid-modified attapulgite under ultrasonic treatments and different pH conditions were investigated. The results demonstrated that a suitable amount of attapulgite can effectively improve the absorption capacity and saltwater performance. The superabsorbent achieved the highest absorptions of 1257.54 g/g and 209.45 g/g in distilled water and a 0.9 wt% NaCl solution, and a higher water absorbency occurred over a wide pH range of 5~9 when the ultrasonic power was 200 W and the attapulgite content was 10%. The addition of attapulgite could significantly increase the water absorption and retention.
Databáze: Directory of Open Access Journals
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