Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation
Chitin hybrid materials reinforced with graphene oxide nanosheets (nGO) have been prepared. The chitin : nGO ratio ranged from proportions where chitin was the main component to ones where nGO exceeded chitin. SEM and TEM images showed that high proportions of nGO may result in nanosheet association...
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20462069_v4_n32_p16480_Gonzalez http://hdl.handle.net/20.500.12110/paper_20462069_v4_n32_p16480_Gonzalez |
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paper:paper_20462069_v4_n32_p16480_Gonzalez2023-06-08T16:33:44Z Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation Mazzobre, María Florencia Chains Graphene Hybrid materials Hydrogen bonds Nuclear magnetic resonance spectroscopy Reinforcement FTIR Graphene oxide nanosheets Mechanical characterisation Molecular bonds Rheological behaviour SEM and TEM Solid state NMR Structural rearrangement Chitin Chitin hybrid materials reinforced with graphene oxide nanosheets (nGO) have been prepared. The chitin : nGO ratio ranged from proportions where chitin was the main component to ones where nGO exceeded chitin. SEM and TEM images showed that high proportions of nGO may result in nanosheet association. FTIR, 13C solid-state NMR and DSC analyses showed that the interaction among the components would not involve the formation of new molecular bonds. nGO was shown to act as a filler that induces structural rearrangements in chitin which lead to new hydrogen bonds among the chains. The mechanical stability proved to be higher when the nGO content in the hybrid was similar to or higher than that of chitin. The rheological behaviour of the material was shown to become more solid-like with increasing nGO content. The nGO did not interfere with lysozyme activity on chitin chains, indicating that these materials would be biodegradable. © 2014 the Partner Organisations. Fil:Mazzobre, M.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20462069_v4_n32_p16480_Gonzalez http://hdl.handle.net/20.500.12110/paper_20462069_v4_n32_p16480_Gonzalez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Chains Graphene Hybrid materials Hydrogen bonds Nuclear magnetic resonance spectroscopy Reinforcement FTIR Graphene oxide nanosheets Mechanical characterisation Molecular bonds Rheological behaviour SEM and TEM Solid state NMR Structural rearrangement Chitin |
| spellingShingle |
Chains Graphene Hybrid materials Hydrogen bonds Nuclear magnetic resonance spectroscopy Reinforcement FTIR Graphene oxide nanosheets Mechanical characterisation Molecular bonds Rheological behaviour SEM and TEM Solid state NMR Structural rearrangement Chitin Mazzobre, María Florencia Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation |
| topic_facet |
Chains Graphene Hybrid materials Hydrogen bonds Nuclear magnetic resonance spectroscopy Reinforcement FTIR Graphene oxide nanosheets Mechanical characterisation Molecular bonds Rheological behaviour SEM and TEM Solid state NMR Structural rearrangement Chitin |
| description |
Chitin hybrid materials reinforced with graphene oxide nanosheets (nGO) have been prepared. The chitin : nGO ratio ranged from proportions where chitin was the main component to ones where nGO exceeded chitin. SEM and TEM images showed that high proportions of nGO may result in nanosheet association. FTIR, 13C solid-state NMR and DSC analyses showed that the interaction among the components would not involve the formation of new molecular bonds. nGO was shown to act as a filler that induces structural rearrangements in chitin which lead to new hydrogen bonds among the chains. The mechanical stability proved to be higher when the nGO content in the hybrid was similar to or higher than that of chitin. The rheological behaviour of the material was shown to become more solid-like with increasing nGO content. The nGO did not interfere with lysozyme activity on chitin chains, indicating that these materials would be biodegradable. © 2014 the Partner Organisations. |
| author |
Mazzobre, María Florencia |
| author_facet |
Mazzobre, María Florencia |
| author_sort |
Mazzobre, María Florencia |
| title |
Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation |
| title_short |
Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation |
| title_full |
Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation |
| title_fullStr |
Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation |
| title_full_unstemmed |
Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation |
| title_sort |
chitin hybrid materials reinforced with graphene oxide nanosheets: chemical and mechanical characterisation |
| publishDate |
2014 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20462069_v4_n32_p16480_Gonzalez http://hdl.handle.net/20.500.12110/paper_20462069_v4_n32_p16480_Gonzalez |
| work_keys_str_mv |
AT mazzobremariaflorencia chitinhybridmaterialsreinforcedwithgrapheneoxidenanosheetschemicalandmechanicalcharacterisation |
| _version_ |
1768544616015986688 |