화학공학소재연구정보센터
Journal of Materials Science, Vol.50, No.1, 447-456, 2015
Effects of SEBS-g-MA copolymer on non-isothermal crystallization kinetics of polypropylene
The non-isothermal crystallization kinetics of pure PP and PP/SEBS-g-MA blends up to volume fraction, Phi(d) (0-0.50) was studied by differential scanning calorimetry at four different cooling rates. Crystallization parameters were analyzed by Ozawa and Liu models. The Ozawa model fits in the PP/SEBS-g-MA blends and indicates the effect of SEBS-g-MA copolymer on the crystallization process of polypropylene. Augis-Bennet model has been used to calculate activation energy, Delta E, during non-isothermal crystallization process. The value of Delta E decreased with SEBS-g-MA due to flexibility of SEBS-g-MA by which movements of chains of PP become easier.