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Published in: Polymer Bulletin 1/2023

29-01-2022 | Original Paper

Semi-coke-enhanced eco-friendly superabsorbent composites for agricultural application

Authors: Yan Liu, Yongfeng Zhu, Yongsheng Wang, Xicun Wang, Li Zong, Aiqin Wang

Published in: Polymer Bulletin | Issue 1/2023

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Abstract

The superabsorbent polymers (SAP) possessed the favorable properties of absorbing and holding water, as well as the good degradability are urgently required for modern agriculture. And the grafting polymerization based on the natural polymers is an effective method for preparation of the SAP with degradability. In this work, a novel degradable SAP of CTS-g-PAA/SC was successful prepared via grafting the acrylic acid onto the chitosan (CTS) and introducing the oil shale semi-coke (SC) as inorganic component. The structure, morphology and thermal stability of the SAP were systemically studied by FTIR, SEM and TGA. Meanwhile, the water absorption capacities of SAP in different pH or various saline solutions as well as the reusability and the water retention capacity in soil were also investigated. The result suggested that the successful grafting polymerization and the SAP possessed the excellent water absorption capabilities, which were as high as 514.5 g/g in distilled water and 60.3 g/g in 0.9 wt% NaCl solution, respectively. More importantly, the cultivation experiments verified the SAP not only promoted the plants growth, but also could be degraded about 37.5% in the 70 days. Therefore, based on its excellent water retention, degradability and low cost, the SAP may have the great application potential in modern agriculture.

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Appendix
Available only for authorised users
Literature
36.
go back to reference Rashidzadeh A, Olad A, Salari D, Reyhanitabar A (2014) On the preparation and swelling properties of hydrogel nanocomposite based on sodium alginate-g-poly (acrylic acid-co-acry-lamide)/clinoptilolite and its application as slow release fertilizer. J Polym Res 21:1–15. https://doi.org/10.1007/s10965-013-0344-9CrossRef Rashidzadeh A, Olad A, Salari D, Reyhanitabar A (2014) On the preparation and swelling properties of hydrogel nanocomposite based on sodium alginate-g-poly (acrylic acid-co-acry-lamide)/clinoptilolite and its application as slow release fertilizer. J Polym Res 21:1–15. https://​doi.​org/​10.​1007/​s10965-013-0344-9CrossRef
Metadata
Title
Semi-coke-enhanced eco-friendly superabsorbent composites for agricultural application
Authors
Yan Liu
Yongfeng Zhu
Yongsheng Wang
Xicun Wang
Li Zong
Aiqin Wang
Publication date
29-01-2022
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 1/2023
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-022-04099-0

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