Polyester와 Polyamide의 혼합용융에 의한 물성변화에 관한 연구

A Study on the Physical Properties of Molten Polyester-Polyamide Blended Systems

The dynamic properties of molten poly(ethylene terephthalate) / polyamide 6 blend systems have been studied in terms of blending ratio, frequency, time, temperature, and shear strain. The dynamic properties were measured with a Rheometrics Dynamic Spectrometer(RDS). On the whole, the rheological properties of the blend systems such as dynamic viscosity(n*), storage and loss moduli(G' and G"), and activation energy of flow were varied with blending compositions. Such thermal properties as glass transition temperature(Tg), crystallization temperature on heation(Tch), crystallization temperature on cooling(Tcc) and melting temperature(Tcc) have also been investigated by using a using a differential scanning calorimetry(DSC).