dc.contributor.author | Robles Barrios, José Eduardo | |
dc.contributor.author | Csóka, Levente | |
dc.contributor.author | Labidi Bouchrika, Jalel | |
dc.date.accessioned | 2018-07-05T12:14:34Z | |
dc.date.available | 2018-07-05T12:14:34Z | |
dc.date.issued | 2018-04-13 | |
dc.identifier.citation | Coatings 8 : (2018) // Article ID 139 | es_ES |
dc.identifier.issn | 2079-6412 | |
dc.identifier.uri | http://hdl.handle.net/10810/27927 | |
dc.description.abstract | Nine different surface modifications of cellulose nanofibrils (CNF) with 3-aminopropyl triethoxysilane (ATS) by using three different solvent systems (water, ethanol, and a mixture of both) were investigated. The effect of reaction conditions, such as silane to cellulose ratio and solvent type were evaluated to determine their contribution to the extent of the silane modification. Nanofibril properties were evaluated by infrared spectroscopy, powder X-ray diffraction, surface free energy, thermogravimetry, C-13 and Si-29 nuclear magnetic resonance, and electronic microscopy. The influence of the solvent in the solvolysis of the silane was reflected in the presence or absence of ethoxy groups in the silane. On the other hand, whereas the surface modification was increased directly proportionally to silane ratio on the reaction, the aggregation of nanofibrils was also increased, which can play a negative role in certain applications. The increment of silane modification also had substantial repercussions on the crystallinity of the nanofibrils by the addition of amorphous components to the crystalline unit; moreover, silane surface modifications enhanced the hydrophobic character of the nanofibrils. | es_ES |
dc.description.sponsorship | The authors would like to acknowledge the Basque Government (IT1008-16) and Mexican Council of Science and Technology (CONACyT), through scholarship No. 216178 for financially supporting this work. This article was also made in frame of the "EFOP-3.6.1-16-2016-00018-Improving the role of research + development + innovation in the higher education through institutional developments assisting intelligent specialization in Sopron and Szombathely". | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | cellulose nanofibrils | es_ES |
dc.subject | 3-aminopropyl triethoxysilane | es_ES |
dc.subject | solvolysis | es_ES |
dc.subject | cellulose grafting | es_ES |
dc.subject | silane coupling agents | es_ES |
dc.subject | microfibrillated cellulose | es_ES |
dc.subject | thin-films | es_ES |
dc.subject | fibers | es_ES |
dc.subject | composites | es_ES |
dc.subject | liquid | es_ES |
dc.subject | state | es_ES |
dc.subject | nanoparticles | es_ES |
dc.subject | silylation | es_ES |
dc.subject | hydrolysis | es_ES |
dc.title | Effect Of Reaction Conditions On The Surface Modification Of Cellulose Nanofibrils With Aminopropyl Triethoxysilane | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0). | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | http://www.mdpi.com/2079-6412/8/4/139 | es_ES |
dc.identifier.doi | 10.3390/coatings8040139 | |
dc.departamentoes | Ingeniería química y del medio ambiente | es_ES |
dc.departamentoeu | Ingeniaritza kimikoa eta ingurumenaren ingeniaritza | es_ES |