| 초록 |
Herein, PPS/NGO nanocomposite was prepared through the micro-compounding process using melted PPS and the small amount of NGO which had been made through ring-opening polymerization using ε-caprolactam. Graphene nano-sheets endow PPS with the enhanced mechanical strength and thermal stability because of their mechanical reinforcing and thermal barrier effects. For example, when 0.03 wt% of NGO was used as a filler for nanocomposite, the values of tensile strength and elongation at break increase by 32 % and 30 %, respectively, while the value of Young’s modulus decreases. Also, thermal decomposition temperature for 5 % weight loss increases from 481 to 488 oC, indicating that thermal degradation is retarded. These advances are due to the well-dispersed NGO in PPS matrix, which is clarified through the morphologies by using SEM and EDS mapping analysis. |
