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Low-Cost Carbon Fibre Derived from Sustainable Coal Tar Pitch and Polyacrylonitrile: Fabrication and Characterisation
- Source :
- Materials, Vol 12, Iss 8, p 1281 (2019), Materials, Volume 12, Issue 8
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- Preparation of high-value pitch-based carbon fibres (CFs) from mesophase pitch precursor is of great importance towards low-cost CFs. Herein, we developed a method to reduce the cost of CFs precursor through incorporating high loading of coal tar pitch (CTP) into polyacrylonitrile (PAN) polymer solution. The CTP with a loading of 25% and 50% was blended with PAN and their spinnability was examined by electrospinning process. The effect of CTP on thermal stabilization and carbonisation of PAN fibres was investigated by thermal analyses methods. Moreover, electrospun PAN/CTP fibres were carbonised at two different temperatures i.e., 850 &deg<br />C and 1200 &deg<br />C and their crystallographic structures of resulting such low-cost PAN/CTP CFs were studied through X-ray diffraction (XRD) and Raman analyses. Compared to pure PAN CFs, the electrical resistivity of PAN/25% CTP CFs significantly decreased by 92%, reaching 1.6 k&Omega<br />/sq. The overall results showed that PAN precursor containing 25% CTP resulted in balanced properties in terms of spinnability, thermal and structural properties. It is believed that CTP has a great potential to be used as an additive for PAN precursor and will pave the way for cost-reduced and high-performance CFs.
- Subjects :
- Fabrication
Materials science
02 engineering and technology
010402 general chemistry
01 natural sciences
lcsh:Technology
Article
symbols.namesake
chemistry.chemical_compound
polyacrylonitrile
medicine
General Materials Science
Coal
Coal tar
lcsh:Microscopy
low-cost carbon fibre
electrospinning
lcsh:QC120-168.85
lcsh:QH201-278.5
Carbonization
business.industry
lcsh:T
Polyacrylonitrile
Mesophase
021001 nanoscience & nanotechnology
Electrospinning
0104 chemical sciences
Chemical engineering
chemistry
coal tar pitch
lcsh:TA1-2040
symbols
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
0210 nano-technology
Raman spectroscopy
business
lcsh:Engineering (General). Civil engineering (General)
lcsh:TK1-9971
medicine.drug
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Volume :
- 12
- Issue :
- 8
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....f437792096e33c45ca17810389a7c027