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Open AccessArticle

Effect of Plasma-Treatment of Interleaved Thermoplastic Films on Delamination in Interlayer Fibre Hybrid Composite Laminates

1
Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
2
Polymer and Composite Engineering (PaCE) Group, Institute for Materials Chemistry & Research, Faculty of Chemistry, University of Vienna, Währingerstrasse 42, A-1090 Vienna, Austria
3
Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(12), 2834; https://doi.org/10.3390/polym12122834
Received: 2 November 2020 / Revised: 20 November 2020 / Accepted: 23 November 2020 / Published: 28 November 2020
(This article belongs to the Section Polymer Composites and Nanocomposites)
Safe, light, and high-performance engineering structures may be generated by adopting composite materials with stable damage process (i.e., without catastrophic delamination). Interlayer hybrid composites may fail stably by suppressing catastrophic interlayer delamination. This paper provides a detailed analysis of delamination occurring in poly(acrylonitrile-butadiene-styrene) (ABS) or polystyrene (PS) film interleaved carbon-glass/epoxy hybrid composites. The ABS films toughened the interfaces of the hybrid laminates, generating materials with higher mode II interlaminar fracture toughness (GIIC), delamination stress (σdel), and eliminating the stress drops observed in the reference baseline material, i.e., without interleaf films, during tensile tests. Furthermore, stable behaviour was achieved by treating the ABS films in oxygen plasma. The mechanical performance (GIIC and σdel) of hybrid composites containing PS films, were initially reduced but increased after oxygen plasma treatment. The plasma treatment introduced O-C=O and O-C-O-O functional groups on the PS surfaces, enabling better epoxy/PS interactions. Microscopy analysis provided evidence of the toughening mechanisms, i.e., crack deflection, leading plasma-treated PS to stabilise delamination. View Full-Text
Keywords: fibre hybrid composites; fracture toughness; delamination; film-interleaving; plasma-treatment fibre hybrid composites; fracture toughness; delamination; film-interleaving; plasma-treatment
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MDPI and ACS Style

Marino, S.G.; Mayer, F.; Bismarck, A.; Czél, G. Effect of Plasma-Treatment of Interleaved Thermoplastic Films on Delamination in Interlayer Fibre Hybrid Composite Laminates. Polymers 2020, 12, 2834. https://doi.org/10.3390/polym12122834

AMA Style

Marino SG, Mayer F, Bismarck A, Czél G. Effect of Plasma-Treatment of Interleaved Thermoplastic Films on Delamination in Interlayer Fibre Hybrid Composite Laminates. Polymers. 2020; 12(12):2834. https://doi.org/10.3390/polym12122834

Chicago/Turabian Style

Marino, Salvatore G.; Mayer, Florian; Bismarck, Alexander; Czél, Gergely. 2020. "Effect of Plasma-Treatment of Interleaved Thermoplastic Films on Delamination in Interlayer Fibre Hybrid Composite Laminates" Polymers 12, no. 12: 2834. https://doi.org/10.3390/polym12122834

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