Next Article in Journal
Effect of Topography and Physical Stimulus on hMSC Phenotype Using a 3D In Vitro Model
Next Article in Special Issue
Transparent Electrothermal Heaters Based on Vertically-Oriented Graphene Glass Hybrid Materials
Previous Article in Journal
Improving Upconversion Efficiency Based on Cross-Patterned Upconversion Material Slot Waveguides on a Silicon Layer
Previous Article in Special Issue
Effect of Varying the Ratio of Carbon Black to Vapor-Grown Carbon Fibers in the Separator on the Performance of Li–S Batteries
Open AccessArticle

Facile Preparation and Characterization of Carbon Fibers with Core-Shell Structure from Graphene-Dispersed Isotropic Pitch Compounds

1
R&D division, Korea Institute of Carbon Convergence Technology, Jeonju-si, Jeollabuk-do 54853, Korea
2
Department of Organic Materials & Fiber Engineering, Chonbuk National University, Jeonju-si, Jeollabuk-do 54896, Korea
3
Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Korea
4
Carbon Composite Laboratory, R&D Center, HPK Inc., Hwaseong-si, Gyeonggi-do 18487, Korea
5
Department of Polymer & Fiber System Engineering, Chonnam National University, Gwangju 61186, Korea
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(4), 521; https://doi.org/10.3390/nano9040521
Received: 14 February 2019 / Revised: 20 March 2019 / Accepted: 21 March 2019 / Published: 3 April 2019
(This article belongs to the Special Issue Electronic and Thermal Properties of Graphene)
In this study, isotropic pitch-based carbon fibers were prepared from a mixture of petroleum residue and graphene nanoplatelets with different contents. The softening point and synthetic yield of synthesized isotropic pitches were analyzed and compared to characterize the nature of the pitches. The surface and thermal characteristics of the fibers were observed using scanning electron microscopy and thermogravimetric analysis (TGA), respectively. From the results, it was observed that the prepared carbon fibers had an interesting core-shell structure. In the TGA analysis with air, the carbon fiber having 0.1 wt.% of graphene showed a higher residue yield than that of the sample having 1.0 wt.% of graphene. This result can be explained due to the graphene being placed on the surface region of the carbon fibers and directly helping to increase the surface area of the carbon fibers, resulting in rapid oxidation due to the enhanced contact area with oxygen. View Full-Text
Keywords: pyrolysis fuel oil (PFO); isotropic pitch; graphene; carbon fiber pyrolysis fuel oil (PFO); isotropic pitch; graphene; carbon fiber
Show Figures

Figure 1

MDPI and ACS Style

Lee, D.H.; Choi, Y.-H.; Rhee, K.Y.; Yang, K.S.; Kim, B.-J. Facile Preparation and Characterization of Carbon Fibers with Core-Shell Structure from Graphene-Dispersed Isotropic Pitch Compounds. Nanomaterials 2019, 9, 521.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop