Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids.
The formation of hybrids of nanofibrillated cellulose and titania nanoparticles in aqueous media has been studied. Their transparency and mechanical behavior have been assessed by spectrophotometry and nanoindentation. The results show that limiting the titania nanoparticle concentration below 16 vo...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3462202?pdf=render |
| _version_ | 1811310409198600192 |
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| author | Christina Schütz Jordi Sort Zoltán Bacsik Vitaliy Oliynyk Eva Pellicer Andreas Fall Lars Wågberg Lars Berglund Lennart Bergström German Salazar-Alvarez |
| author_facet | Christina Schütz Jordi Sort Zoltán Bacsik Vitaliy Oliynyk Eva Pellicer Andreas Fall Lars Wågberg Lars Berglund Lennart Bergström German Salazar-Alvarez |
| author_sort | Christina Schütz |
| collection | DOAJ |
| description | The formation of hybrids of nanofibrillated cellulose and titania nanoparticles in aqueous media has been studied. Their transparency and mechanical behavior have been assessed by spectrophotometry and nanoindentation. The results show that limiting the titania nanoparticle concentration below 16 vol% yields homogeneous hybrids with a very high Young's modulus and hardness, of up to 44 GPa and 3.4 GPa, respectively, and an optical transmittance above 80%. Electron microscopy shows that higher nanoparticle contents result in agglomeration and an inhomogeneous hybrid nanostructure with a concomitant reduction of hardness and optical transmittance. Infrared spectroscopy suggests that the nanostructure of the hybrids is controlled by electrostatic adsorption of the titania nanoparticles on the negatively charged nanocellulose surfaces. |
| first_indexed | 2024-04-13T09:58:21Z |
| format | Article |
| id | doaj.art-3df21d209fc945568986e85783e43c9e |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-13T09:58:21Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-3df21d209fc945568986e85783e43c9e2022-12-22T02:51:18ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01710e4582810.1371/journal.pone.0045828Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids.Christina SchützJordi SortZoltán BacsikVitaliy OliynykEva PellicerAndreas FallLars WågbergLars BerglundLennart BergströmGerman Salazar-AlvarezThe formation of hybrids of nanofibrillated cellulose and titania nanoparticles in aqueous media has been studied. Their transparency and mechanical behavior have been assessed by spectrophotometry and nanoindentation. The results show that limiting the titania nanoparticle concentration below 16 vol% yields homogeneous hybrids with a very high Young's modulus and hardness, of up to 44 GPa and 3.4 GPa, respectively, and an optical transmittance above 80%. Electron microscopy shows that higher nanoparticle contents result in agglomeration and an inhomogeneous hybrid nanostructure with a concomitant reduction of hardness and optical transmittance. Infrared spectroscopy suggests that the nanostructure of the hybrids is controlled by electrostatic adsorption of the titania nanoparticles on the negatively charged nanocellulose surfaces.http://europepmc.org/articles/PMC3462202?pdf=render |
| spellingShingle | Christina Schütz Jordi Sort Zoltán Bacsik Vitaliy Oliynyk Eva Pellicer Andreas Fall Lars Wågberg Lars Berglund Lennart Bergström German Salazar-Alvarez Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids. PLoS ONE |
| title | Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids. |
| title_full | Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids. |
| title_fullStr | Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids. |
| title_full_unstemmed | Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids. |
| title_short | Hard and transparent films formed by nanocellulose-TiO2 nanoparticle hybrids. |
| title_sort | hard and transparent films formed by nanocellulose tio2 nanoparticle hybrids |
| url | http://europepmc.org/articles/PMC3462202?pdf=render |
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