The Effect Of Oxidation Process On Graphene Oxide Fiber Properties
Autor: | Aysen Onen, Nuray Ucar, Mervin Olmez, Ilkay Ozsev Yuksek, Elif Can |
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Rok vydání: | 2019 |
Předmět: |
Materials science
Oxide Nanotechnology 02 engineering and technology 01 natural sciences Nanomaterials law.invention chemistry.chemical_compound law 0103 physical sciences General Materials Science Fiber coagulation Materials of engineering and construction. Mechanics of materials 010302 applied physics Graphene Mechanical Engineering hummers method 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry Mechanics of Materials pre-oxidation graphene oxide fiber TA401-492 Oxidation process wet spinning 0210 nano-technology |
Zdroj: | Materials Science-Poland, Vol 37, Iss 1, Pp 83-89 (2019) |
Popis: | Graphene, a carbon allotrope, became a significant area of research with its superior electrical, mechanical, optical properties, etc. There are several methods to obtain graphene oxide from graphite, one of which is the Hummers method. In this study, several modifications and pre-treatments preceding the Hummers method have been employed. Three different graphene oxide fibers have been produced by three different procedures, i.e. fibers obtained by Hummers method with pre-oxidation step, modified Hummers method and modified Hummers method with pre-oxidation step. It has been observed that pre-oxidation has a significant effect on graphene oxide fiber properties produced by wet spinning process (coagulation). Modified Hummers method without pre-oxidation leads to the highest breaking strength and breaking elongation. Reduced fiber linear density, breaking strength and breaking elongation together with increased crimp were observed in graphene fiber due to the addition of pre-oxidation step. |
Databáze: | OpenAIRE |
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