Study on the Bonding and Welding of Wood Plastic Composite Window Corner

In this article, two corner connection methods, cementing and weld of wood fiberhigh density polyethylene (WF/HDPE) to composite window were investigated. The results showed that, when bonded by epoxy resin, the corner bending stress of WF/HDPE profile was improved with increasing wood component in profile. When the cross section of WF/HDPE profile was treated with plasma, corner bending stress was increased by 973%.When WF/HDPE profile was connected by hot welding method, corner bending stress decreased significantly as wood component increased. Enlarge the welding area could increase the corner bending stress. Filling the thermal insulation cavity of the window profile with HDPE could improve the corner bending stress of 22.40MPa.