在高密?聚乙烯與木粉系統的塑木複材中，木粉跟乙烯基材界面之間微弱的交互作用，使得複材的機械性質無法有效提升。為此加入相容劑以改善界面作用，提升複材的機械性質。本研究?用動態機械分析（DMTA）以及?變儀，觀察複材動態機械性質以及穩態?變性質跟界面之間的變化關係。 The mechanical properties of the polyethylene/wood flour (HDPE/WF) composite systems are not satisfactory due to the weak interaction between the wood flour and HDPE matrix. Several compatibilizers are added into the composites to enhance the interfacial interactions. Dynamical mechanical thermal analysis (DMTA) and rheological properties were used to investigate the interaction of the interface between the wood flour and HDPE matrix. The drop in the amplitude and the shift in the damping peak(tanδ) indicates the strong interaction between the wood flour and the HDPE matrix. The increase in shear viscosity is also an indication of interfacial interaction. On the other hand, the increase in the storage modulus (E’) demonstrates the improvement of mechanical properties.
