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Open AccessArticle

Preparation and Applications of Salt-Resistant Superabsorbent Poly (Acrylic Acid-Acrylamide/Fly Ash) Composite

by 1,2,3, 1,2,3,*, 1,2, 1,2,3, 1 and 1
1
Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
Department of chemical and environmental engineering, Xinjiang Institute of Engineering, Urumqi 830026, China
*
Author to whom correspondence should be addressed.
Materials 2019, 12(4), 596; https://doi.org/10.3390/ma12040596
Received: 24 January 2019 / Revised: 12 February 2019 / Accepted: 13 February 2019 / Published: 16 February 2019
(This article belongs to the Section Advanced Composites)
Solution polymerization synthesized alt-resistant superabsorbent poly (acrylic acid-acrylamide/fly ash) composites. The mass ratio of acrylic acid (AA) to acrylamide (AM), the concentration of crosslinker, the neutralization degree (ND) of AA, and the polymerization temperature were investigated by single-factor method. Optimized conditions for the synthesis of poly (acrylic acid-acrylamide/fly ash) (PAA-AM/FA) are, as following: m (AA)/m (AM) is 1.5, the content of crosslinker N, N-methylenebisacrylamide. (MBA) is 0.7%, neutralization degree of AA is 70%, polymerization temperature is 70 °C, and fly ash (FA) content is 50%. The prepared PAA-AM/FA demonstrated superior water absorption performance. The absorption capacities of PAA-AM/FA for pure water and 0.9% NaCl solution were found to be 976 g·g−1 and 81 g·g−1, respectively. Furthermore, PAA-AM/FA was found to have excellent adsorption capacity (148 mg·g−1) for Rhodamine B in water. Fourier Transform-Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA), and Scanning Electron Microscopy (SEM) characterized the prepared materials. Results showed that fly ash was incorporated into the macromolecular polymer matrix and played a key role in improving the performance of the polymer composites. View Full-Text
Keywords: poly (acrylic acid-acrylamide); fly ash; superabsorbent; salt-resistance; Rhodamine B; adsorption poly (acrylic acid-acrylamide); fly ash; superabsorbent; salt-resistance; Rhodamine B; adsorption
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MDPI and ACS Style

Zhu, W.; Zhang, Y.; Wang, P.; Yang, Z.; Yasin, A.; Zhang, L. Preparation and Applications of Salt-Resistant Superabsorbent Poly (Acrylic Acid-Acrylamide/Fly Ash) Composite. Materials 2019, 12, 596.

AMA Style

Zhu W, Zhang Y, Wang P, Yang Z, Yasin A, Zhang L. Preparation and Applications of Salt-Resistant Superabsorbent Poly (Acrylic Acid-Acrylamide/Fly Ash) Composite. Materials. 2019; 12(4):596.

Chicago/Turabian Style

Zhu, Wenjuan; Zhang, Yagang; Wang, Penglei; Yang, Zhiyong; Yasin, Akram; Zhang, Letao. 2019. "Preparation and Applications of Salt-Resistant Superabsorbent Poly (Acrylic Acid-Acrylamide/Fly Ash) Composite" Materials 12, no. 4: 596.

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