Structure development and isothermal crystallization behaviour of compatibilized PET/expandable fluorine mica hybrid nanocomposite

摘要: The compatibilized PET/expandable fluorine mica (ME) hybrid nanocomposite (CN) prepared by in situ polymerization technique showed a partially exfoliated structure of ME PET matrix XRD analysis, owing to its broad crystalline peak accompanied an increase d-spacing as compared PET/ME uncompatibilized composite (UC). analysis TEM revealed a better dispersion PET for CN aggregates of case UC. Further, the isothermal crystallization behaviour studied using DSC same at different crystallization temperature (T c,) a significant decrease crystallization half time and remarkable increase rates (almost 2 times than pure PET) for contrast Avrami exponent n lowered 2.3 as compared 3.1-3.4 various T c. The activation energy (E a) determined from Arrhenius equation reduced dramatically CN. These various observations could be explained based on nucleation efficiency accompanied different crystallization/growth process occurring hybrid nanocomposite.