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Swelling behaviors of superabsorbent composites based on acrylic acid/acrylamide copolymer and acid-modified attapulgite.
Ren, Hanru; Ren, Jun; Tao, Ling; Ren, Xuechang.
Afiliação
  • Ren H; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University Lanzhou 730070 P. R. China renjun@mail.lzjtu.cn.
  • Ren J; Gansu Hanxing Environmental Protection Co. Ltd Lanzhou 730070 China.
  • Tao L; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University Lanzhou 730070 P. R. China renjun@mail.lzjtu.cn.
  • Ren X; Gansu Hanxing Environmental Protection Co. Ltd Lanzhou 730070 China.
RSC Adv ; 14(21): 14758-14766, 2024 May 02.
Article em En | MEDLINE | ID: mdl-38716095
ABSTRACT
The swelling behaviors and water retention of superabsorbent materials prepared from acrylic acid/acrylamide copolymer and acid-modified attapulgite under ultrasonic treatment and different pH conditions were investigated. The results demonstrated that a suitable amount of attapulgite can effectively improve the absorption capacity. The superabsorbent achieved the highest absorptions of 1257.54 g g-1 and 209.45 g g-1 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%. Addition of attapulgite could significantly increase the water absorption and retention of this kind of material, which can be applied as a sand-fixing material.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article