Influence of pretreatment and mechanical nanofibrillation energy on properties of nanofibers from Aspen cellulose

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dc.contributor.authorBalea Martín, Ana
dc.contributor.authorFuente González, Elena De La
dc.contributor.authorTarrés, Quim
dc.contributor.authorPèlach, Maria Àngels
dc.contributor.authorMutjé, Pere
dc.contributor.authorDelgado-Aguilar, Marc
dc.contributor.authorBlanco Suárez, María Ángeles
dc.contributor.authorNegro Álvarez, Carlos Manuel
dc.date.accessioned2023-06-16T14:19:28Z
dc.date.available2023-06-16T14:19:28Z
dc.date.issued2021
dc.descriptionCRUE-CSIC (Acuerdos Transformativos 2021)
dc.description.abstractThe characteristics of cellulose nanofibers (CNFs) depend on many factors such as the raw material, type and intensity of the pre-treatment, and type and severity of the mechanical defibrillation process. The relationship among factors is complex but crucial in determining the final, fit-for-use CNF properties. This study aims to find the relationship between the CNF properties morphology, aspect ratio, nanofibrillation yield, transmittance and cationic demand, and the production process using bleached Aspen thermomechanical pulp as the raw material. Five different types of pretreatments were carried out and five different defibrillation intensities of highpressure homogenization were evaluated. Pretreatments were: PFI refining at 20,000 revolutions, enzymatic hydrolysis with 80 and 240 g of enzyme per ton of dry pulp and TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl)–mediated oxidation with 5 and 15 mmol of NaClO per gram of dry pulp. From the twenty-five different procedures evaluated, results show that both the pretreatment and the severity of the high-pressure homogenization determined both the fibrillation yield and the CNF morphology. Moreover, the main properties of CNFs (cationic demand, yield, transmittance and aspect ratio) can be estimated from the carboxylic content of the pretreated pulp, which would facilitate the control of the CNF production and their tuning according to the production needs.
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (España)
dc.description.sponsorshipComunidad de Madrid
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/70132
dc.identifier.citationBalea, A., et al. «Influence of Pretreatment and Mechanical Nanofibrillation Energy on Properties of Nanofibers from Aspen Cellulose». Cellulose, vol. 28, n.o 14, septiembre de 2021, pp. 9187-206. DOI.org (Crossref), https://doi.org/10.1007/s10570-021-04109-w.
dc.identifier.doi10.1007/s10570-021-04109-w
dc.identifier.issn0969-0239
dc.identifier.officialurlhttps://doi.org/10.1007/s10570-021-04109-w
dc.identifier.urihttps://hdl.handle.net/20.500.14352/4682
dc.issue.number14
dc.journal.titleCellulose
dc.language.isoeng
dc.page.final9206
dc.page.initial9187
dc.publisherSpringer Nature
dc.relation.projectID(CTQ2017-85654-C2-1-R and CTQ2017-85654-C2-2- R)
dc.relation.projectIDRETO-PROSOST2-CM (S2018/EMT-4459)
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu66.0
dc.subject.keywordAspen
dc.subject.keywordNanocellulose
dc.subject.keywordEnzymatic
dc.subject.keywordHydrolysis
dc.subject.keywordTEMPO-mediated oxidation
dc.subject.keywordRefining
dc.subject.keywordHigh-pressure homogenization
dc.subject.ucmIngeniería química
dc.subject.unesco3303 Ingeniería y Tecnología Químicas
dc.titleInfluence of pretreatment and mechanical nanofibrillation energy on properties of nanofibers from Aspen cellulose
dc.typejournal article
dc.volume.number28
dspace.entity.typePublication
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relation.isAuthorOfPublication505f3b47-3120-4526-a703-f45b3e7cf73c
relation.isAuthorOfPublication04f905d2-6294-4530-9d01-062828ddefb2
relation.isAuthorOfPublication70170cd9-21de-4871-a7fe-b2ad29053b15
relation.isAuthorOfPublication.latestForDiscoverybcadd696-bb9b-41cf-a86f-6aa46dba0bc4
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