<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></abstract>

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.

The effect of oxidation process on graphene oxide fiber properties

Faculty of Textile Technologies and Design, Department of Textile Engineering

Department of Polymer Science and Technology

Department of Materials Science and Engineering

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"The effect of oxidation process on graphene oxide fiber properties"}

Graphene, a carbon allotrope, became a significant area of research with its superior electrical, mechanical, optical properties, etc. There are several...

The effect of oxidation process on graphene oxide fiber properties

Published Online: Mar 06, 2019

Page range: 83 - 89

Received: Sep 20, 2017

Accepted: Aug 25, 2018

DOI: https://doi.org/10.2478/msp-2019-0015

Keywords
pre-oxidation, graphene oxide fiber, Hummers method, wet spinning, coagulation

© 2019 Nuray Ucar et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The effect of oxidation process on graphene oxide fiber properties

Published Online: Mar 06, 2019

Page range: 83 - 89

Received: Sep 20, 2017

Accepted: Aug 25, 2018

DOI: https://doi.org/10.2478/msp-2019-0015

Keywordspre-oxidation, graphene oxide fiber, Hummers method, wet spinning, coagulation

© 2019 Nuray Ucar et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
pre-oxidation, graphene oxide fiber, Hummers method, wet spinning, coagulation