VOLATILE EXTRACTIVES EFFECTS ON INTERFACIAL ADHESION OF PINE WOOD FILLED PP COMPOUNDS

摘要

Effects of volatile extractives existing in pine wood (PW) particles on polypropylene (PP)/PW compounds are investigated upon interfacial adhesion, nucleation behavior, and mechanical properties. Results indicate, as the concentration of the PW particles is increased, the modulus is increased; however, the crystalline peak temperature is increased, melting peak temperature is decreased and the tensile yield stress is decreased. Few spherulites are locally developed at the interface between the PW and the PP. The amounts of volatile extractives in the PW are increased as the PW concentrations are increased.