Enhanced properties of PAN-derived carbon fibres and resulting composites by active screen plasma surface functionalisation

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  • National Technical University of Athens (NTUA)


Advanced active screen plasma (ASP) technology has been used to modify the PAN-derived carbon fibre (CF) surfaces using gas mixtures of N2-H2 and N2-H2-Ar. Unlike conventional plasma treatments, the ASP treatments can reduce the structural disorder of the CF surfaces and increase the surface crystallite size. Moreover, the ASP treatments 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 increased single fibre tensile strength. The interfacial properties (interlaminar shear strength and flexural strength) of the resulting composites are improved.


Original languageEnglish
Article number201900252
Number of pages20
JournalPlasma Processes and Polymers
Publication statusPublished - 10 Feb 2020