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Article

Preparation and Characterization of Superabsorbent Polymers Based on Sawdust

1
MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China
2
School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(11), 1891; https://doi.org/10.3390/polym11111891
Received: 25 October 2019 / Revised: 11 November 2019 / Accepted: 13 November 2019 / Published: 15 November 2019
(This article belongs to the Collection Sustainable Polymeric Materials from Renewable Resources)
Sawdust, a cheap by-product of the timber and forestry industry, was considered as a framework structure to prepare superabsorbent polymer with acrylic acid (AA) and acrylamide (AM), the synthetic monomers. The effects of initiator content, crosslinker content, AA content, AM content, degree of neutralization of AA, and reaction temperature on the swelling rate of superabsorbent polymer were investigated. The synthesized polymer was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). Under optimal synthesis conditions, the results showed that the swelling rate of the polymer in deionized water and 0.9% NaCl solution reached 738.12 and 90.18 g/g, respectively. The polymer exhibits excellent swelling ability, thermal stability, and reusability. After the polymer was introduced into the samples (soil or coal), the water evaporation rate of the samples was significantly reduced, and the saturated water holding capacity and pore structure were also significantly improved. View Full-Text
Keywords: sawdust; polymerization; superabsorbent polymer; reusability; water retention agent sawdust; polymerization; superabsorbent polymer; reusability; water retention agent
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MDPI and ACS Style

Zhang, M.; Zhang, S.; Chen, Z.; Wang, M.; Cao, J.; Wang, R. Preparation and Characterization of Superabsorbent Polymers Based on Sawdust. Polymers 2019, 11, 1891. https://doi.org/10.3390/polym11111891

AMA Style

Zhang M, Zhang S, Chen Z, Wang M, Cao J, Wang R. Preparation and Characterization of Superabsorbent Polymers Based on Sawdust. Polymers. 2019; 11(11):1891. https://doi.org/10.3390/polym11111891

Chicago/Turabian Style

Zhang, Mingchang, Shaodi Zhang, Zhuoran Chen, Mingzhi Wang, Jinzhen Cao, and Ruoshui Wang. 2019. "Preparation and Characterization of Superabsorbent Polymers Based on Sawdust" Polymers 11, no. 11: 1891. https://doi.org/10.3390/polym11111891

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