Carbon fibre production during hydrogen plasma etching of diamond films

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64421-64427 ◽  
Author(s):  
I. Villalpando ◽  
P. John ◽  
S. Porro ◽  
J. I. B. Wilson
Keyword(s):  
Carbon Fibre ◽  
Plasma Etching ◽  
Hydrogen Plasma ◽  
Diamond Films ◽  
Fibre Production ◽  
Carbon Fibres ◽  
Carbon Fibre Production

Different morphology of carbon fibres have been synthesised on diamond films by hydrogen plasma etching in the presence of silicon.

Oil palm lignin under subcritical phenol conditions as precursor for carbon fibre production

2020 ◽  
Author(s):  
Khalidatul Athirah Khalid ◽  
Vijayaletchumy Karunakaran ◽  
Norfahana Abd-Talib ◽  
Khairul Faizal Pa’ee ◽  
Woei Yenn Tong ◽  
...  
Keyword(s):  
Carbon Fibre ◽  
Oil Palm ◽  
Fibre Production ◽  
Carbon Fibre Production

scholarly journals An Overview of Impregnation Methods for Carbon Fibre Reinforced Thermoplastics

2017 ◽  
Vol 742 ◽  
pp. 473-481 ◽  
Author(s):  
Thomas Köhler ◽  
Tim Röding ◽  
Thomas Gries ◽  
Gunnar Seide
Keyword(s):  
Carbon Fibre ◽  
High Performance ◽  
Fibre Production ◽  
Matrix Composites ◽  
Carbon Fibres ◽  
Reinforced Plastics ◽  
Thermoplastic Matrix ◽  
Economic Production ◽  
The Matrix ◽  
Reinforced Thermoplastics

Carbon fibre reinforced plastics (CFRPs) can be classified according to whether the matrix is a thermoset or a thermoplastic. Thermoset-matrix composites are by tradition far more common, but thermoplastic-matrix composites are gaining in importance. There are several techniques for combining carbon fibres with a thermoplastic-matrix system. The composite’s characteristics as well as its manufacturing costs are dependent on the impregnation technique of the carbon fibre and the textile structure respectively. Carbon fibre reinforced thermoplastics (CFRTPs) are suitable for fast and economic production of high-performance components. Despite the higher material costs thermoplastic-matrix systems show cost benefits in comparison to thermoset-matrix due to substantial time savings in the production process. Moreover CFRTPs can be manufactured in large production runs. The commingling of reinforcement fibres with matrix fibres is a well-established process. Another approach is the coating of the carbon fibre with a thermoplastic subsequent to the carbon fibre production (carbonization, activation and deposition of sizing). The latter point is currently subject of research and is a promising method for further increasing the production speed. This paper presents the different possibilities of impregnating carbon fibres with a thermoplastic matrix. Diverse technologies along the process chain of the CFRTP production will be discussed.

Upscaling of lignin precursor melt spinning by bicomponent spinning and its use for carbon fibre production

2021 ◽  
Vol 379 (2209) ◽  
Author(s):  
Lars Bostan ◽  
Omid Hosseinaei ◽  
Renate Fourné ◽  
Axel S. Herrmann
Keyword(s):  
Carbon Fibre ◽  
Melt Spinning ◽  
Black Liquor ◽  
Tensile Modulus ◽  
Fibre Production ◽  
Pilot Scale ◽  
Carbon Fibres ◽  
New Approach ◽  
Main Challenge ◽  
Spin Carrier

Upscaling lignin-based precursor fibre production is an essential step in developing bio-based carbon fibre from renewable feedstock. The main challenge in upscaling of lignin fibre production by melt spinning is its melt behaviour and rheological properties, which differ from common synthetic polymers used in melt spinning. Here, a new approach in melt spinning of lignin, using a spin carrier system for producing bicomponent fibres, has been introduced. An ethanol extracted lignin fraction from LignoBoost process of commercial softwood kraft black liquor was used as feedstock. After additional heat treatment, melt spinning was performed in a pilot-scale spinning unit. For the first time, biodegradable polyvinyl alcohol (PVA) was used as a spin carrier to enable the spinning of lignin by improving the required melt strength. PVA-sheath/lignin-core bicomponent fibres were manufactured. Afterwards, PVA was dissolved by washing with water. Pure lignin fibres were stabilized and carbonized, and tensile properties were measured. The measured properties, tensile modulus of 81.1 ± 3.1 GPa and tensile strength of 1039 ± 197 MPa, are higher than the majority of lignin-based carbon fibres reported in the literature. This new approach can significantly improve the melt spinning of lignin and solve problems related to poor spinnability of lignin and results in the production of high-quality lignin-based carbon fibres. This article is part of the theme issue ‘Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 2)’.

Sign in / Sign up

Export Citation Format

Share Document