Journal
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
Volume 73, Issue -, Pages 51-57Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijadhadh.2016.07.017
Keywords
Composites; Thermoplastic; Surface treatment; Hybrid joints
Funding
- Materials innovation institute (M2i) [M11.4.12474]
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Adding a layer of thermoplastic resin on the surface of thermoset composites enables welding as a possible joining method for thermoset composites. Adhesion at the thermoset/thermoplastic interface was achieved by direct co-curing of an UV irradiation treated PEEK film with aerospace grade carbon/epoxy prepregs. The effectiveness of UV irradiation for surface modification of PEEK was characterized Using Fourier-Transformed InfraRed (FTIR) spectroscopy and contact angle measurement. The adhesion quality at the thermoset/thermoplastic interface was evaluated using a double cantilever beam test and Atomic Force Microscopy (AFM). UV treatment was found to effectively modify the chemical structure of PEEK surface and improve the wettability, which enables the development of a thermoset/thermoplastic interface by direct co-curing.
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