| 초록 |
Compatibility of PBT/Nylon6,12 microfiber in conformity to their weight ratio and manufacture temperature was investigated with SEM morphology and DSC. The alterations in their mechanical properties by extrusion speed were compared and measured by UTM. In comparison with SEM photographs, the domain sizes of Nylon6,12 were gradually decreased with increasing the extrusion temperature. Furthermore, according to these SEM images, the phase separation between Nylon6,12 domain and PBT matrix became indistinct with increasing of weight percentage of Nylon6,12. In case of DSC, intervals of each two melting peaks became narrow as increasing the Nylon6,12 ratio and also the boundaries of two peaks were almost decreased with increasing the extrusion temperature. The mechanical properties including tensile strength, elongation, flexural strength and flexural modulus were increased as the increasing the extrusion temperature until 260°C. |
