Abstract
The effects of corona-discharged atmospheric plasma treatment on the surfaces of polyvinyl chloride (PVC) were studied for their application in adhesively joining PVC with AA 6061 aluminium alloy. Although no alteration has been observed in the topography of the treated PVC surfaces, ATR-FTIR analysis reveals the incorporation of –OH functional groups. Therefore, the untreated hydrophobic surface of PVC changes to a hydrophilic nature after corona treatment. Single lap shear (SLS) specimens were prepared using treated PVC and Al bonded with a room temperature cure epoxy adhesive. The obtained SLS strength of the joint between 20-second treated PVC and etched Al is found to be 15 times larger than that of untreated PVC with as-received Al.
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