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Cellulose Nanofibers modified with alkyl ketene dimer for oil absorbent aerogels

Nanofibrillated cellulose consists of interconnected cellulose nanofibers, isolated from wood or agricultural byproducts, which leads to a three dimensional, porous and flexible structure. In this sense, the present work aims to develop hydrophobic aerogels for oil absorbing. Different percentages of alkyl ketene dimer (AKD) were added to the cellulose nanofiber (CNF) gel in order to partially hydrophobize the surface thereof. After mechanical stirring in an Ultraturrax and two cycles of sonication at 80 watts for 2 minutes, the CNF gel was poured into aluminum dishes and frozen at - 80ºC for two hours. Then, the samples were freeze-dried for 48 hours. Water and oil absorption capacity was determined both under static and dynamic conditions in an oil-water mixture

© Cellulose Chemistry and Technology, 2016, vol. 50, núm. 3-4, p. 369-375

Editura Academiei Romane

Author: Delgado Aguilar, Marc
González Tovar, Israel
Jiménez, A. María
Tarrés Farrés, Quim
Quintana, Germán
Mutjé Pujol, Pere
Date: 2016
Abstract: Nanofibrillated cellulose consists of interconnected cellulose nanofibers, isolated from wood or agricultural byproducts, which leads to a three dimensional, porous and flexible structure. In this sense, the present work aims to develop hydrophobic aerogels for oil absorbing. Different percentages of alkyl ketene dimer (AKD) were added to the cellulose nanofiber (CNF) gel in order to partially hydrophobize the surface thereof. After mechanical stirring in an Ultraturrax and two cycles of sonication at 80 watts for 2 minutes, the CNF gel was poured into aluminum dishes and frozen at - 80ºC for two hours. Then, the samples were freeze-dried for 48 hours. Water and oil absorption capacity was determined both under static and dynamic conditions in an oil-water mixture
Format: application/pdf
ISSN: 0576-9787
Document access: http://hdl.handle.net/10256/13946
Language: eng
Publisher: Editura Academiei Romane
Collection: Reproducció digital del document publicat a: http://www.cellulosechemtechnol.ro/pdf/CCT3-4(2016)/p.369-375.pdf
Articles publicats (D-EQATA)
Is part of: © Cellulose Chemistry and Technology, 2016, vol. 50, núm. 3-4, p. 369-375
Rights: Tots els drets reservats. Reproduced by permission of Romanian Academy, the owner of the publishing rights
Subject: Nanofibres
Nanofibers
Fibres de cel·lulosa
Cellulose fibers
Aerogels
Title: Cellulose Nanofibers modified with alkyl ketene dimer for oil absorbent aerogels
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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