Water Absorbency Study of the Low-Cost Composite--Eupatorium adenophorum-Graft-Acrylic Acid/Acrylamide

Abstract:

In this study Eupatorium adenophorum was evaluated as potential raw materials for Water-Absorbent Composite (WAC) synthesized with acrylic acid (AA) and acrylamide (AM) in aqueous medium. Factors, such as weight ratio of AA/AM to dry powdered Eupatorium adenophorum (DPEA), the amount of initiator and cross-linker, neutralization degree of AA, which influence water-absorbent capacity of WAC, were investigated. Additionally, the performances of WACs were appraised in term of water absorbency. The results showed that the nearly optimal WAC was obtained with absorbencies of 933 g/g in deionized water and 310 g/g in 0.9 wt% NaCl aqueous solution. Furthermore, the optimum super-absorbent has been proved with expectant polymerization structures and the morphological features via Fourier Transform Infrared Spectroscopy (FT-IR), X-Ray Diffraction (XRD) and Scanning Electric Microscopy (SEM).

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 2098-2105
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.2098
• Online since: January 2013
• Authors: Hai Bo Wen, Xin Gao, Heng Zhang, Ke Li Chen
• Keywords: Absorbency, Eupatorium Adenophorum, Graft Copolymerization, Water-Absorbent Composite

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