Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
Effect of surface treatment on the performance of composite?composite and composite?metal adhesive joints
Surface treatment of Al7075?T6 and GCFRP composite, Lap Shear Joint strength analysis of Al7075?T6/GCFRP bonded specimens.The use of Fiber?Reinforced Polymer Composites (FRPCs) in automotive, aerospace, and naval applications has increased significantly due to the requirement for a high performance?to?weight ratio. One the issue in using composite parts is their joining to the metal parts in the global structure. Several joining techniques such as mechanical joining, adhesive, vibration joining, and hybrid joining are used for this purpose. Being lighter in weight and lower in cost in comparison to other techniques, adhesive bonding is mostly used for composite?composite and composite?metal joining. To achieve reliable adhesive joining, surface preparation of the joining substrates is of utmost importance. Though the effect of physical surface treatments on the performance of joints has been reported in the literature, however, the effect of chemical surface treatment of composites on the mechanical performance of adhesive joints was rarely studied. In this article, the effect of chemical treatment (alkaline permanganate), of the composite surfaces on the single lap shear strength and Izod impact strength of composite?composite and composite?metal adhesive joints is reported. The results showed that the chemically treated joints demonstrate a significant improvement in these properties.
» Publication Date: 30/07/2022
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
