玻纤增强PTT复合材料流变性能研究

omposites of glass fiber reinforced PTT with various amount of glass fiber and silane coupling agent were prepared by melt blending. The rheological behaviours of the composite were studied by capillary rheometer，the interfacial action of PTT/Glass fiber blends was analyzed by sacaning electron microscopy. The results showed that the composite followed the flowing behaviour preudo-plastic fluid. With the increase of glass fiber amount, the apparent viscosities of the composite increased，the non-Newtonian exponent decreased and the flowing activation energy increased. With the addition of silane coupling agent, the apparent viscosities of the composite increased，the non-Newtonian exponent decreased and the flowing activation energy decreased.