Authors
Ibrahim Sarikaya, Malik Tahiyat, Ramy Harik, Tanvir Farouk, John Connell
Journal
International Journal of Adhesion and Adhesives, 99, 102570.
Abstract
This work is part of the National Aeronautics and Space Administration’s (NASA) Advanced Composite Project (ACP) focused on reducing the timeline to certification and directly follows guidelines provided by the Federal Aviation Administration (FAA, Advisory Circular 20-107B, 2010) on improved process controls for adhesively bonded airframe structures. High performance airframe composite structures require reliable fabrication and high fidelity bonding for assembled components. However, a low inherent surface energy and happenstance of surface contamination in multiple manufacturing steps, both contribute to poor adhesive properties in composite materials. Proper surface preparation of pre-bond composite surfaces is, therefore, an active research topic focused on improving fidelity of adhesive bonding. This work discusses application of air driven atmospheric pressure plasma discharge device to mitigate detrimental effects of contaminants on adhesive bonds between carbon fiber composite surfaces. The experimental results indicate that contaminated surfaces treated with Atmospheric Pressure Plasma Jet (APPJ) exhibited higher adhesive retention, resulting in higher fracture toughness in double cantilever beam tests.
Keywords
adhesive bonding, automated fiber placement, carbon fiber reinforced polymers, plasma treatment, mode I interlaminar fracture toughness, wettability
Citation
Ibrahim Sarikaya, Malik Tahiyat, Ramy Harik, Tanvir Farouk, & John Connell. (June 2020). Surface Functionalization of Automated Fiber Placement Manufactured Composites by Atmospheric Pressure Plasma Jet. International Journal of Adhesion and Adhesives, 99, 102570. doi:https://doi.org/10.1016/j.ijadhadh.2020.102570.
Link: https://www.sciencedirect.com/science/article/pii/S0143749620300300