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Abstract
Advanced active screen plasma (ASP) technology is used to modify polyacrylonitrile-derived carbon fibre (CF) surfaces using gas mixtures of N2–H2 and N2–H2–Ar. Unlike conventional plasma treatments, ASP treatment can reduce the structural disorder of CF surfaces and increase the surface crystallite size. Moreover, ASP treatment can lead to an increased single fibre tensile strength. This is mainly because the post-plasma nature of the ASP technology can effectively eliminate ion-bombardment-induced degradation while providing radicals necessary for surface modification. The addition of argon to the nitrogen–hydrogen gas mixture contributes to a more ordered graphitic structure on CF surfaces and further increases the single fibre tensile strength. The interfacial properties (interlaminar shear strength and flexural strength) of the resulting composites are improved.
Original language | English |
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Article number | 1900252 |
Number of pages | 11 |
Journal | Plasma Processes and Polymers |
Volume | 17 |
Issue number | 4 |
Early online date | 10 Feb 2020 |
DOIs | |
Publication status | Published - 3 Apr 2020 |
Keywords
- active screen plasma
- carbon fibre
- interfacial property
- tensile strength
ASJC Scopus subject areas
- Condensed Matter Physics
- Polymers and Plastics
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