Dynamic chemistry is an attractive option for assembly and disassembly of composite parts due to the simplicity of the fastening concept. In this study, within the framework of the AIRPOXY project, a repairable and easy debondable 3R (Reparable, Recyclable and Reprocessable) dynamic epoxy adhesive has been developed and studied. The dynamic 3R adhesive and composites contain reversible aromatic disulfide bonds which can be successfully used as a reversible bonding concept. The studied 3R bonding technology consists of joining 3R composite substrates with a 3R adhesive. Therefore, due to the dynamic exchange of chemical bonds between the adhesive and the substrates, the interfaces are fused and the performance of the joint is improved. Additionally, the 3R joint can be repaired by hot compression and the joint can be debonded on demand for the recycling of the substrates. In the present study, it is shown that debonding can be controlled with temperature. Bonding process has been optimized in order to achieve cohesive failure of the adhesive with maximum bonding strength for further repair of debonded parts.
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