| Autor: |
Rebelo, Rafael C.1 (AUTHOR) rafaelr@eq.uc.pt, Báguena, Blanca Vélez1,2 (AUTHOR), Pereira, Patrícia1,3 (AUTHOR), Moreira, Rui1,4 (AUTHOR) ruimoreira@eq.uc.pt, Coelho, Jorge F. J.1,3 (AUTHOR), Serra, Arménio C.1 (AUTHOR) |
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| Zdroj: |
Journal of Polymers & the Environment. Oct2024, Vol. 32 Issue 10, p5179-5194. 16p. |
| Abstrakt: |
Personal care products are an inseparable part of urban society, but the widespread use of petroleum-based superabsorbent polymers (SAPs) poses significant environmental negative impact. To overcome this problem, we investigated the development of cellulose-based hydrogels through di-epoxide chemical crosslinking of cellulose/cellulose electrolytes in NaOH/Urea aqueous system. The aim was to exploit mechanical strength, hydrophilicity, non-toxicity, and biodegradability of cellulose as the absorbent core of personal hygiene products through a simple synthesis method. The synthesized cellulose materials significantly improved the absorption capacity of the gels by 220%, reaching up to 41 g/g. The absorption properties were influenced by the cellulose DS, crosslinking density, and fluid salinity. The hydrogels demonstrated a remarkable absorption capacity of synthetic urine (27 g/g) and underload conditions (12 g/g). Their non-cytotoxic and biodegradable nature showed their potential for the manufacturing of personal care products such as disposable diapers or daily pads. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
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Full text from SpringerLink