Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens
[EN] Cellulose, hemicellulose, and lignin are the main constituents of lignocellulose nanofibrils (LCNFs). The content and modification of lignin in the pulps affect the production process and characteristics of LCNFs, showing changes in their morphology, surface, rheological, and dielectric behavio...
| Authors: | ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2023 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/209787 |
| Online Access: | https://riunet.upv.es/handle/10251/209787 |
| Access Level: | Open access |
| Keyword: | Eucalyptus nitens Lignocellulose nanofibers Morphology Rheology Dielectric properties MAQUINAS Y MOTORES TERMICOS TECNOLOGIA ELECTRONICA |
| _version_ | 1878731205021532160 |
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| author | Albornoz-Palma, Gregory Piero Horacio|||0000-0002-1194-976X |
| author2 | Teruel-Juanes, Roberto|||0000-0002-0190-4445 Ribes-Greus, A.|||0000-0003-2460-8291 Ortega-Sanhueza, Isidora Henríquez-Gallegos, Sergio Pereira, Miguel |
| author2_role | author author author author author |
| author_browse | Albornoz-Palma, Gregory Piero Horacio|||0000-0002-1194-976X Henríquez-Gallegos, Sergio Ortega-Sanhueza, Isidora Pereira, Miguel Ribes-Greus, A.|||0000-0003-2460-8291 Teruel-Juanes, Roberto|||0000-0002-0190-4445 |
| author_facet | Albornoz-Palma, Gregory Piero Horacio|||0000-0002-1194-976X Teruel-Juanes, Roberto|||0000-0002-0190-4445 Ribes-Greus, A.|||0000-0003-2460-8291 Ortega-Sanhueza, Isidora Henríquez-Gallegos, Sergio Pereira, Miguel |
| author_role | author |
| collection | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| description | [EN] Cellulose, hemicellulose, and lignin are the main constituents of lignocellulose nanofibrils (LCNFs). The content and modification of lignin in the pulps affect the production process and characteristics of LCNFs, showing changes in their morphology, surface, rheological, and dielectric behaviors. Due to controversy and relevance in applications, these changes still need to be explained. This work seeks to understand the effect of lignin content and its oxidation on the production process and the characteristics of LCNFs. It was possible to produce pulps with fibers of similar physical characteristics and carbohydrate content after delignification, allowing the identification of the isolated effects of in situ lignin. A lower amount of lignin facilitated the LCNF production process, generating fibrils with smaller widths (up to similar to 48%) but more considerable apparent lengths (up to similar to 73%). In addition, the viscosity of the suspensions increased for LCNFs with lower lignin content (up to similar to 3.5 times to 0.5% (w/v)), due to increased flexibility, specific surface area, and surface charge of the fibrils. Finally, the LCNFs showed four dipolar relaxations, where the glass transition temperature of lignin decreased with oxidation and increased with increasing condensed structures and decreasing S/G ratio. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_2aedfbc8304f71cedda884645dfd36c4 |
| institution | Universitat Politècnica de València (UPV) |
| instname_str | Universitat Politècnica de València (UPV) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:riunet.upv.es:10251/209787 |
| publishDate | 2023 |
| publishDateSort | 2023 |
| publisher | Springer-Verlag |
| publisherStr | Springer-Verlag |
| reponame_str | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| spelling | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens Albornoz-Palma, Gregory Piero Horacio|||0000-0002-1194-976X Teruel-Juanes, Roberto|||0000-0002-0190-4445 Ribes-Greus, A.|||0000-0003-2460-8291 Ortega-Sanhueza, Isidora Henríquez-Gallegos, Sergio Pereira, Miguel Eucalyptus nitens Lignocellulose nanofibers Morphology Rheology Dielectric properties MAQUINAS Y MOTORES TERMICOS TECNOLOGIA ELECTRONICA [EN] Cellulose, hemicellulose, and lignin are the main constituents of lignocellulose nanofibrils (LCNFs). The content and modification of lignin in the pulps affect the production process and characteristics of LCNFs, showing changes in their morphology, surface, rheological, and dielectric behaviors. Due to controversy and relevance in applications, these changes still need to be explained. This work seeks to understand the effect of lignin content and its oxidation on the production process and the characteristics of LCNFs. It was possible to produce pulps with fibers of similar physical characteristics and carbohydrate content after delignification, allowing the identification of the isolated effects of in situ lignin. A lower amount of lignin facilitated the LCNF production process, generating fibrils with smaller widths (up to similar to 48%) but more considerable apparent lengths (up to similar to 73%). In addition, the viscosity of the suspensions increased for LCNFs with lower lignin content (up to similar to 3.5 times to 0.5% (w/v)), due to increased flexibility, specific surface area, and surface charge of the fibrils. Finally, the LCNFs showed four dipolar relaxations, where the glass transition temperature of lignin decreased with oxidation and increased with increasing condensed structures and decreasing S/G ratio. This work was funded by the Agencia Nacional de Investigacion y Desarrollo (ANID)/Doctorado Nacional/2018-21181080, and projects FONDECYT N degrees 1201042, CORFO Grant no. 13CEI2-21839, and INNOMAT-H2 (MFA/2022/041) (Conselleria d'Innovacio, Universitats, Ciencia i Societat Digital). Springer-Verlag https://riunet.upv.es/handle/10251/209787 |
| spellingShingle | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens Albornoz-Palma, Gregory Piero Horacio|||0000-0002-1194-976X Eucalyptus nitens Lignocellulose nanofibers Morphology Rheology Dielectric properties MAQUINAS Y MOTORES TERMICOS TECNOLOGIA ELECTRONICA |
| title | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens |
| title_full | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens |
| title_fullStr | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens |
| title_full_unstemmed | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens |
| title_short | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens |
| title_sort | Understanding the effect of lignin on the production process and characteristics of lignocellulose nanofibrils from Eucalyptus nitens |
| topic | Eucalyptus nitens Lignocellulose nanofibers Morphology Rheology Dielectric properties MAQUINAS Y MOTORES TERMICOS TECNOLOGIA ELECTRONICA |
| topic_facet | Eucalyptus nitens Lignocellulose nanofibers Morphology Rheology Dielectric properties MAQUINAS Y MOTORES TERMICOS TECNOLOGIA ELECTRONICA |
| url | https://riunet.upv.es/handle/10251/209787 |