Thermal Transitions of the Drawn Film of a Nylon 6/Layered Silicate Nanocomposite

The thermal transitions of a nylon 6/layered silicate nanocomposite were studied by differential scanning calorimetry and in-situ synchrotron X-ray diffraction. The drawn film of the nylon 6/layered silicate nanocomposite typically showed three endotherms in the DSC thermogram; a very broad endotherm at ~120?C (T1), a double-melt ing endotherm at ~215?C (T2), and a high temperature endotherm at ~240?C (T3). The drawn film of the nylon 6/ layered silicate nanocomposite was comprised of a mixture of the and forms, with the form being generated by drawing the pressed film having the form. The melting and crystallization of the crystals were observed at the above thermal transitions during the heating experiment performed at the Pohang X-ray synchrotron radiation source (4C2). The newly generated form was meta-stable and melted at ~T1. The double-melting at ~T2 was due to the exo thermic crystallization of the form during the main endothermic melting of the form. The form crystallized at ~T2 and melted at ~T3. KCI Citation Count: 11