Enhancement and evaluation of interfacial adhesion between active screen plasma surface-functionalised carbon fibres and the epoxy substrate

Yana Liang; Xiaoying Li; Mauro Giorcelli; Alberto Tagliaferro; Costas Charitidis; Hanshan Dong

doi:10.3390/polym14040824

Enhancement and evaluation of interfacial adhesion between active screen plasma surface-functionalised carbon fibres and the epoxy substrate

Yana Liang, Xiaoying Li, Mauro Giorcelli, Alberto Tagliaferro, Costas Charitidis, Hanshan Dong

Metallurgy and Materials

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Abstract

This paper investigated the modification of the advanced active screen plasma (ASP) technology on PAN-derived carbon fibres (CFs) with gas mixtures of N2-H2 and N2-H2-Ar, separately. A more-than-30% improvement was found in the interfacial shear strength (IFSS) between the modified CFs and the epoxy substrate in the resulting composites, as disclosed by single fibre push-out tests. Based on the study of surface morphology, surface chemistry and water-sorption behaviour, the interfacial adhesion enhancement mechanisms were attributed to (1) the increased chemical bonding between the introduced functional groups on the fibre surface and the matrix; (2) the improved surface hydrophilicity of CFs; and (3) the enhanced van der Waals bonding due to the removal of surface contaminations.

Original language	English
Article number	824
Journal	Polymers
Volume	14
Issue number	4
DOIs	https://doi.org/10.3390/polym14040824
Publication status	Published - 21 Feb 2022

Keywords

Carbon fibres
Interface
Polymer-matrix composites

ASJC Scopus subject areas

Chemistry(all)
Polymers and Plastics

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10.3390/polym14040824Licence: Creative Commons: Attribution (CC BY)

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Cite this

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title = "Enhancement and evaluation of interfacial adhesion between active screen plasma surface-functionalised carbon fibres and the epoxy substrate",

abstract = "This paper investigated the modification of the advanced active screen plasma (ASP) technology on PAN-derived carbon fibres (CFs) with gas mixtures of N2-H2 and N2-H2-Ar, separately. A more-than-30% improvement was found in the interfacial shear strength (IFSS) between the modified CFs and the epoxy substrate in the resulting composites, as disclosed by single fibre push-out tests. Based on the study of surface morphology, surface chemistry and water-sorption behaviour, the interfacial adhesion enhancement mechanisms were attributed to (1) the increased chemical bonding between the introduced functional groups on the fibre surface and the matrix; (2) the improved surface hydrophilicity of CFs; and (3) the enhanced van der Waals bonding due to the removal of surface contaminations.",

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TY - JOUR

T1 - Enhancement and evaluation of interfacial adhesion between active screen plasma surface-functionalised carbon fibres and the epoxy substrate

AU - Liang, Yana

AU - Li, Xiaoying

AU - Giorcelli, Mauro

AU - Tagliaferro, Alberto

AU - Charitidis, Costas

AU - Dong, Hanshan

PY - 2022/2/21

Y1 - 2022/2/21

N2 - This paper investigated the modification of the advanced active screen plasma (ASP) technology on PAN-derived carbon fibres (CFs) with gas mixtures of N2-H2 and N2-H2-Ar, separately. A more-than-30% improvement was found in the interfacial shear strength (IFSS) between the modified CFs and the epoxy substrate in the resulting composites, as disclosed by single fibre push-out tests. Based on the study of surface morphology, surface chemistry and water-sorption behaviour, the interfacial adhesion enhancement mechanisms were attributed to (1) the increased chemical bonding between the introduced functional groups on the fibre surface and the matrix; (2) the improved surface hydrophilicity of CFs; and (3) the enhanced van der Waals bonding due to the removal of surface contaminations.

AB - This paper investigated the modification of the advanced active screen plasma (ASP) technology on PAN-derived carbon fibres (CFs) with gas mixtures of N2-H2 and N2-H2-Ar, separately. A more-than-30% improvement was found in the interfacial shear strength (IFSS) between the modified CFs and the epoxy substrate in the resulting composites, as disclosed by single fibre push-out tests. Based on the study of surface morphology, surface chemistry and water-sorption behaviour, the interfacial adhesion enhancement mechanisms were attributed to (1) the increased chemical bonding between the introduced functional groups on the fibre surface and the matrix; (2) the improved surface hydrophilicity of CFs; and (3) the enhanced van der Waals bonding due to the removal of surface contaminations.

KW - Carbon fibres

KW - Interface

KW - Polymer-matrix composites

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DO - 10.3390/polym14040824

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JF - Polymers

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M1 - 824

ER -

Enhancement and evaluation of interfacial adhesion between active screen plasma surface-functionalised carbon fibres and the epoxy substrate

Abstract

Keywords

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