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Article

TEMPO-Oxidized Cellulose Nanofibers: A Potential Bio-Based Superabsorbent for Diaper Production

1
IRQV Institute, Department of Nursing, University of Girona, Emili Grahit, 77-17003 Girona, Spain
2
LEPAMAP Research Group, University of Girona, Maria Aurèlia Capmany, 61-17003 Girona, Spain
3
PRODIS Research Group, University of Girona, Maria Aurèlia Capmany, 61-17003 Girona, Spain
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(9), 1271; https://doi.org/10.3390/nano9091271
Received: 30 July 2019 / Revised: 30 August 2019 / Accepted: 1 September 2019 / Published: 6 September 2019
(This article belongs to the Special Issue Application of Nanocellulose in the Industry)
Single-use plastics are expected to disappear, mainly due to the rise of stricter regulations to combat their impact on the environment. As an example, the recent European Directive on Single-Use-Plastics (SUP) will be implemented between 2021 and 2024 and will directly prohibit the use of some SUP. Baby diapers are one of the most used single-used products in our daily lives, and it is estimated that most of the ~4000 diapers that each baby uses in their life go to landfill. Such diapers usually contain superabsorbent polymers (SAP) that are based on acrylic acid-acrylamide mixtures with high water retention capacity, but they are neither bio-based nor biodegradable. In this work, we have developed bio-based superabsorbent aerogels made of cellulose nanofibers (CNF) and propose their potential use in baby diapers. TEMPO-oxidized CNF at different oxidation degrees were prepared and tested. The obtained CNF exhibited higher free swelling capacity (FSC) than the commercial fluff pulp (ranging from 117.62% to 245.21% higher) and also than the diaper absorbent, except for CNF-5 (ranging from 31.56% to 54.55%), even under compression. Overall, the present work shows a case study where CNF could have a potential application with market opportunities. View Full-Text
Keywords: cellulose nanofibers; aerogels; superabsorbent; absorption properties; diapers; nanocellulose cellulose nanofibers; aerogels; superabsorbent; absorption properties; diapers; nanocellulose
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MDPI and ACS Style

Patiño-Masó, J.; Serra-Parareda, F.; Tarrés, Q.; Mutjé, P.; Espinach, F.X.; Delgado-Aguilar, M. TEMPO-Oxidized Cellulose Nanofibers: A Potential Bio-Based Superabsorbent for Diaper Production. Nanomaterials 2019, 9, 1271. https://doi.org/10.3390/nano9091271

AMA Style

Patiño-Masó J, Serra-Parareda F, Tarrés Q, Mutjé P, Espinach FX, Delgado-Aguilar M. TEMPO-Oxidized Cellulose Nanofibers: A Potential Bio-Based Superabsorbent for Diaper Production. Nanomaterials. 2019; 9(9):1271. https://doi.org/10.3390/nano9091271

Chicago/Turabian Style

Patiño-Masó, Josefina, Ferran Serra-Parareda, Quim Tarrés, Pere Mutjé, F. X. Espinach, and Marc Delgado-Aguilar. 2019. "TEMPO-Oxidized Cellulose Nanofibers: A Potential Bio-Based Superabsorbent for Diaper Production" Nanomaterials 9, no. 9: 1271. https://doi.org/10.3390/nano9091271

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