Kim, Yoon Sang Jung, Unseok Choi, Sunwoong Jung, Yong Chae Lee, Hun-Su Kim, Jaewoo 2024-01-19T16:30:40Z 2024-01-19T16:30:40Z 2021-09-02 2020-11 1359-835X https://pubs.kist.re.kr/handle/201004/117953 With the growing industrial demand for carbon fiber-reinforced thermoplastic polymers (CFRTPs), there is an urgent need to improve their adhesion to conventional metal substrates. In this study, the effect of plasma gas and Ar incorporation on the shear strength between CFRTP and Al was examined. Although NH3 plasma had a greater effect on the surface properties of CFRTP than O-2 plasma, the incorporation of Ar into O-2 plasma showed a 280% improvement in shear strength relative to the untreated reference. Plasma treatment proved effective only on the CFRTP surface, with the failure mode switching from adhesive to substrate failure. Spectroscopic analyses revealed that functional groups like C=O, O-C=O, or H2N-C were either newly generated or their quantity increased on the CFRTP surface. Additionally, CFRTP itself acts as an oxygen source, and its shear strength improved significantly under Ar plasma treatment, even without external O-2 supply. English ELSEVIER SCI LTD MECHANICAL-PROPERTIES SURFACE-TREATMENT BONDING STRENGTH ADHESIVE JOINTS ALUMINUM FAILURE COMPOSITES PARAMETERS DAMAGE FILM Effect of plasma gas and Ar incorporation on the shear strength between carbon fiber-reinforced thermoplastic polymer and Al Article 10.1016/j.compositesa.2020.106041 1 COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, v.138 COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING 138 scie scopus 000576639500003 2-s2.0-85087901464 Engineering, Manufacturing Materials Science, Composites Engineering Materials Science Article MECHANICAL-PROPERTIES SURFACE-TREATMENT BONDING STRENGTH ADHESIVE JOINTS ALUMINUM FAILURE COMPOSITES PARAMETERS DAMAGE FILM Thermoplastic resin Polymer-matrix composites (PMCs) Adhesion Surface treatments