Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character
© 2020 by the authors.
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| Language: | English |
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Multidisciplinary Digital Publishing Institute
2020
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| Subjects: | Biodegradable nanocomposites, Starch, Nanofibrillated cellulose, Barrier properties, |
| Online Access: | http://hdl.handle.net/10261/212532 http://dx.doi.org/10.13039/501100003329 |
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dig-iata-es-10261-2125322021-12-28T16:41:57Z Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character Granda, Luis Angel Oliver-Ortega, Helena Fabra, María José Tarrés, Quim Pèlach, Maria Àngels Lagarón Cabello, José María Méndez, José Alberto Ministerio de Economía y Competitividad (España) Biodegradable nanocomposites Starch Nanofibrillated cellulose Barrier properties © 2020 by the authors. Nowadays, the interest on nanofibrillated cellulose (CNF) has increased owing to its sustainability and its capacity to improve mechanical and barrier properties of polymeric films. Moreover, this filler shows some drawbacks related with its high capacity to form aggregates, hindering its dispersion in the matrix. In this work, an improved procedure to optimize the dispersability of CNF in a thermoplastic starch was put forward. On the one hand, CNF needs a hydrophilic dispersant to be included in the matrix, and on the other, starch needs a hydrophilic plasticizer to obtain a thermoformable material. Glycerol was used to fulfil both targets at once. CNF was predispersed in the plasticizer before nanofibrillation and later on was included into starch, obtaining thin films. The tensile strength of these CNF–starch composite films was 60% higher than the plain thermoplastic starch at a very low 0.36% w/w percentage of CNF. The films showed a noticeable correlation between water uptake, and temperature and humidity. Regarding permeability, a ca. 55% oxygen and water vapor permeability drop was found by nanofiller loading. The hydrolytic susceptibility of the composite was confirmed, being similar to that of the thermoplastic starch. This research was funded by University of Girona through the Program of the Improvement of the Scientific Production and the MINECO project AGL2015-63855-C2-1-R. Peer reviewed 2020-05-28T14:10:32Z 2020-05-28T14:10:32Z 2020 2020-05-28T14:10:32Z artículo http://purl.org/coar/resource_type/c_6501 Polymers 12(5): 1071 (2020) http://hdl.handle.net/10261/212532 10.3390/polym12051071 2073-4360 http://dx.doi.org/10.13039/501100003329 32392772 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2015-63855-C2-1-R Publisher’s version https://doi.org/10.3390/polym12051071 Sí open Multidisciplinary Digital Publishing Institute |
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Biodegradable nanocomposites Starch Nanofibrillated cellulose Barrier properties Biodegradable nanocomposites Starch Nanofibrillated cellulose Barrier properties |
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Biodegradable nanocomposites Starch Nanofibrillated cellulose Barrier properties Biodegradable nanocomposites Starch Nanofibrillated cellulose Barrier properties Granda, Luis Angel Oliver-Ortega, Helena Fabra, María José Tarrés, Quim Pèlach, Maria Àngels Lagarón Cabello, José María Méndez, José Alberto Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character |
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© 2020 by the authors. |
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Ministerio de Economía y Competitividad (España) |
| author_facet |
Ministerio de Economía y Competitividad (España) Granda, Luis Angel Oliver-Ortega, Helena Fabra, María José Tarrés, Quim Pèlach, Maria Àngels Lagarón Cabello, José María Méndez, José Alberto |
| format |
artículo |
| topic_facet |
Biodegradable nanocomposites Starch Nanofibrillated cellulose Barrier properties |
| author |
Granda, Luis Angel Oliver-Ortega, Helena Fabra, María José Tarrés, Quim Pèlach, Maria Àngels Lagarón Cabello, José María Méndez, José Alberto |
| author_sort |
Granda, Luis Angel |
| title |
Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character |
| title_short |
Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character |
| title_full |
Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character |
| title_fullStr |
Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character |
| title_full_unstemmed |
Improved Process to Obtain Nanofibrillated Cellulose (CNF) Reinforced Starch Films with Upgraded Mechanical Properties and Barrier Character |
| title_sort |
improved process to obtain nanofibrillated cellulose (cnf) reinforced starch films with upgraded mechanical properties and barrier character |
| publisher |
Multidisciplinary Digital Publishing Institute |
| publishDate |
2020 |
| url |
http://hdl.handle.net/10261/212532 http://dx.doi.org/10.13039/501100003329 |
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