Fit-for-use nanofibrillated cellulose from recovered paper

Balea Martín, Ana; Monte Lara, María Concepción; Fuente González, Elena De La; Sánchez Salvador, José Luis; Tarrés, Quim; Mutjé, Pere; Delgado-Aguilar, Marc; Negro Álvarez, Carlos Manuel

Fit-for-use nanofibrillated cellulose from recovered paper

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Fit-for-Use_Nanofibrillated_Cellulose.pdf (9.23 MB)

Official URL

https://doi.org/10.3390/nano13182536

Publication date

2023

Authors

Balea Martín, Ana

Monte Lara, María Concepción

Fuente González, Elena De La

Sánchez Salvador, José Luis

Tarrés, Quim

Mutjé, Pere

Delgado-Aguilar, Marc

Negro Álvarez, Carlos Manuel

Publisher

MDPI

Citations

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URI

https://hdl.handle.net/20.500.14352/91110

Citation

Balea, A., Monte, M. C., Fuente, E., Sanchez-Salvador, J. L., Tarrés, Q., Mutjé, P., Delgado-Aguilar, M. & Negro, C. (2023). Fit-for-Use Nanofibrillated Cellulose from Recovered Paper. Nanomaterials, 13(18), 2536.

Abstract

The cost-effective implementation of nanofibrillated cellulose (CNF) at industrial scale requires optimizing the quality of the nanofibers according to their final application. Therefore, a portfolio of CNFs with different qualities is necessary, as well as further knowledge about how to obtain each of the main qualities. This paper presents the influence of various production techniques on the morphological characteristics and properties of CNFs produced from a mixture of recycled fibers. Five different pretreatments have been investigated: a mechanical pretreatment (PFI refining), two enzymatic hydrolysis strategies, and TEMPO-mediated oxidation under two different NaClO concentrations. For each pretreatment, five high-pressure homogenization (HPH) conditions have been considered. Our results show that the pretreatment determines the yield and the potential of HPH to enhance fibrillation and, therefore, the final CNF properties. These results enable one to select the most effective production method with the highest yield of produced CNFs from recovered paper for the desired CNF quality in diverse applications.