NOVEL SUPERABSORBENT HYDROGEL COMPOSITE BASED ON POLY(ACRYLAMIDE-CO-ACRYLATE)/NONTRONITE: CHARACTERIZATION AND SWELLING PERFORMANCE

Química Nova

Renan C. F. Leitão¹  Cícero P. De Moura¹  Lindomar R. D. Da Silva¹  Nágila M. P. S. Ricardo¹  Judith P. A. Feitosa¹  Edvani C. Muniz¹  André R. Fajardo¹  Francisco H. A. Rodrigues¹ 

关键词: composite;    superabsorbent hydrogel composites;    nontronite;    swelling performance;   

DOI  :  10.5935/0100-4042.20150008

来源: SciELO

【 摘 要 】

A novel superabsorbent hydrogel (SH) composite based on a poly(acrylamide-co-acrylate) matrix filled with nontronite (NONT), a Fe(III)-rich member of the smectite group of clay minerals, is described in this manuscript. A variety of techniques, including FTIR, XRD, TGA, and SEM/EDX, were utilized to characterize this original composite. Experimental data confirmed the SH composite formation and suggested NONT was completely dispersed in the polymeric matrix. Additionally, NONT improved the water uptake capacity of the final material, which exhibited fast absorption, low sensitivity to the presence of salt, high water retention and a pH sensitive properties. These preliminary data showed that the original SH composite prepared here possesses highly attractive properties for applications in areas such as the agriculture field, particularly as a soil conditioner.

【 授权许可】

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