Non-isothermal crystallization kinetics of PA11/carbon black composites

Abstract

This study employed differential scanning calorimetry to investigate the non-isothermal crystallization kinetics of PA11/CB composites. Additionally, the crystal structures of PA11/CB were studied employing WAXD, revealing that the PA11 was the an α crystal structure at room temperature and the addition of CB to PA11 had no discernible impact on the crystal structure of PA11. In this paper, the Mo models were employed to explore the non-isothermal crystallization kinetics. The Mo model successfully characterized the non-isothermal crystallization, and it was also found that crystallization rate increased with an elevation in the cooling rate, and the incorporation of CB accelerated the crystallization process of PA11. However, the Ozawa model proved inappropriate for describing the non-isothermal crystallization in these blends. The research substantiated that CB indeed promoted the crystallization of PA11, as evidenced by calculations involving the activation energy of non-isothermal crystallization and the nucleation activity of CB.