The Effects of the Foaming Agent on Properties of PVC WoodPlastic Composite Decorative Boards

The effects of the ratios and adding ways of foaming agent on the properties of the PVC woodplastic composite（WPC）decorative boards by testing the physical and mechanical properties. Results showed that，when the ratio of composite foaming agent AC, ZnO, NaHCO3 was 6∶1∶4, the bending strength, the surface bonding strength，and the screw holding capability of WPC decorative boards to maximum were 2108MPa，067MPa，082KN，respectively. And then they met the GB/T 24137—2009standards. The mechanical properties of WPC decorative boards with directly adding the composite foaming agent were better than that with first mixing and then adding the foaming agent.