1
|
Issue Highlights. CAN J CHEM ENG 2023. [DOI: 10.1002/cjce.24449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
|
2
|
Adjuik TA, Nokes SE, Montross MD. Biodegradability of bio‐based and synthetic hydrogels as sustainable soil amendments: A review. J Appl Polym Sci 2023. [DOI: 10.1002/app.53655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Toby A. Adjuik
- Department of Biosystems and Agricultural Engineering University of Kentucky Lexington Kentucky USA
- Department of Agronomy Iowa State University Ames Iowa USA
| | - Sue E. Nokes
- Department of Biosystems and Agricultural Engineering University of Kentucky Lexington Kentucky USA
| | - Michael D. Montross
- Department of Biosystems and Agricultural Engineering University of Kentucky Lexington Kentucky USA
| |
Collapse
|
3
|
Bachra Y, Grouli A, Damiri F, Zhu XX, Talbi M, Berrada M. Synthesis, Characterization, and Swelling Properties of a New Highly Absorbent Hydrogel Based on Carboxymethyl Guar Gum Reinforced with Bentonite and Silica Particles for Disposable Hygiene Products. ACS OMEGA 2022; 7:39002-39018. [PMID: 36340181 PMCID: PMC9631763 DOI: 10.1021/acsomega.2c04744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Superabsorbent polymers derived from petroleum have been widely used as the primary component of high-water-absorption disposable sanitary products. However, environmental concerns as well as unstable market prices influence the quality of disposable hygiene products. The development of superabsorbent polymers from natural, non-petroleum-derived materials has become more predominant. In the present study, two borax-cross-linked carboxymethyl guar-based superabsorbents with bentonite (CMG-Bt) and fumed silica particle reinforcement (CMG-Bt-Si) were synthesized. The materials have been fully characterized by various techniques. The swelling behavior was studied through free swelling capacity (FSC) and centrifuge retention capacity (CRC). The swelling kinetics and urea absorption capacity were further analyzed. The effects of the cross-linking ratio, mineral clay, silica particles, and pH of the liquids on the swelling properties of the superabsorbents have been studied. The incorporation of silica particles demonstrated a positive effect on water uptake reaching 78.63 and 41.09 g/g of FSC and CRC, respectively, at an optimum pH of 6.8. The optimum swelling kinetics were attributed to CMG-Bt-Si of 5 wt % silica particle content, indicating a velocity parameter (ζ) of 41 s in saline solution. Finally, the highest swelling values were obtained at 10, 10, and 5 wt % for the cross-linking ratio, bentonite content, and silica particle content, respectively; in addition, the absorption of urea by the CMG-Bt-Si material was also confirmed.
Collapse
Affiliation(s)
- Yahya Bachra
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
| | - Ayoub Grouli
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
| | - Fouad Damiri
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
| | - X. X. Zhu
- Department
of Chemistry, University of Montreal, C.P. 6128, Succ. Centre-ville, MontrealH3C 3J7, QC, Canada
| | - Mohammed Talbi
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
| | - Mohammed Berrada
- Laboratory
of Analytical and Molecular Chemistry (LCAM), Faculty of Sciences
Ben M’Sick, Department of Chemistry, University Hassan II of Casablanca, Casablanca20000, Morocco
- Innovations
and Technologies Platform (PInTech), University
Hassan II of Casablanca, Casablanca20000, Morocco
| |
Collapse
|