Ozbek, Y. orcid.org/0000-0002-6194-1467, Yildirim, C., Yakin, F.E. et al. (3 more authors) (2024) Enhancing adhesive bonding and mechanical properties of composite sandwich panels through atmospheric plasma activation. Polymer Composites. ISSN 0272-8397
Abstract
This study investigates the effect of atmospheric plasma activation (APA) treatment on the thermomechanical performance of adhesively bonded skins of composite sandwich panels. The investigations show that APA treatment enhances surface wettability through the water contact angle measurements, and adhesion between the skin and honeycomb core of the panels under mechanical tests. Specifically, APA treatment results in an 11% increase in flatwise tensile strength and a 12% enhancement in the impact strength of the sandwich laminates. Flatwise tensile tests reveal superior tensile strength and toughness in APA-treated specimens, with fracture patterns suggesting more robust adhesion. Charpy impact test results confirm increased energy absorption, reflecting better mechanical resilience. Scanning electron microscopy (SEM) and dynamic mechanical analysis (DMA) techniques are utilized to validate these findings. Overall, APA treatment proves to be an effective technique for enhancing the performance of composite sandwich panels, offering improved adhesion, strength, and impact resistance. This approach holds significant promise for advancing high-performance composite materials in various engineering applications.
Highlights
APA treatment enhances wettability and adhesion in sandwich panels.
Improved adhesive distribution between skin-core after sandwich manufacturing.
11% increase in tensile strength and 12% in impact strength with APA.
Better toughness and energy absorption via SEM and DMA support in APA.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2024 The Authors. Except as otherwise noted, this author-accepted version of a journal article published in Polymer Composites is made available via the University of Sheffield Research Publications and Copyright Policy under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ |
Keywords: | adhesive bonding; atmospheric plasma activation (APA); composite Sandwich panels; flatwise tensile test |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > School of Mechanical, Aerospace and Civil Engineering |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 29 Nov 2024 08:28 |
Last Modified: | 29 Nov 2024 11:30 |
Status: | Published online |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/pc.29290 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:220222 |