The effects of energetic ion irradiation on metal-to-polymer adhesion |
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Authors: | Chan-Hee Jung Hwang-Woo Cho In-Tae Hwang Jae-Hak Choi Young-Chang Nho Jun-Sik Shin Kyeong-Ho Chang |
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Institution: | 1. Department of Industrial Chemistry “Toso Montanari,” University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy;2. Department of Civil, Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131 Bologna, Italy;3. Department of Engineering “Enzo Ferrari,” University of Modena and Reggio Emilia, via Vignolese 905/A, 41100 Modena, Italy |
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Abstract: | In this study, the simple and effective surface modification of polymers through ion irradiation is described to improve metal-to-polymer adhesion. The surface of polymer films was irradiated with 150 keV Xe+ ions at various fluences, and copper (Cu) was then deposited onto the surface-modified polymer films. The surface properties of the modified films were investigated in terms of their wettability, chemical composition, and surface morphology. The metal-to-polymer adhesion strength was estimated using a nano-indenter. As a result, the surface environment of the polymer films was physiochemically changed by ion irradiation, which could have a significant effect on the metal-to-polymer adhesion. The irradiated polymer films exhibited a higher adhesion strength than the control film, and the strength depended on the fluence. The maximum adhesion strength (8.45 mN) of the Cu deposited on the irradiated PEN films was obtained at a fluence of 5×1014 ions/cm2. |
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