The selection of adhesive used to bond polyvinyl chloride/wood flour composites

Bonding performances of five different adhesives to polyvinyl chloride (PVC)/wood flour composites (briefly referred to PVC-based wood-plastic composites (WPC) in this paper) were tested in this paper, in order to determine which adhesive was suitable to bond PVC-based WPC. The results showed that bonding properties of PVC-based WPC joint, bonded with epoxy adhesive were highest compared to the other adhesives used in this study. So epoxy adhesive can be chosen to bond PVC-based WPC and attain better bonding strength. But because epoxy adhesive was usually widely used as high-performance structural adhesive and its price was relatively high, the other alternative often was considered. Meanwhile the results in this study showed that J-39 acrylic adhesive has relatively better bonding to PVC-based WPC, so it was suggested that J-39 acrylic adhesive could be chosen to bond PVC-based WPC.