Non-isothermal crystallization kinetics of graphene/PA10T composites

Xubing Fu; Xia Dong; Guisheng Yang; Shulin Bai

doi:10.1016/j.heliyon.2022.e10206

Non-isothermal crystallization kinetics of graphene/PA10T composites

Heliyon. 2022 Aug 13;8(8):e10206. doi: 10.1016/j.heliyon.2022.e10206. eCollection 2022 Aug.

Authors

Xubing Fu¹, Xia Dong², Guisheng Yang³, Shulin Bai¹

Affiliations

¹ School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing 100871, PR China.
² Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, PR China.
³ Shanghai Genius Advanced Material Co., Ltd., Shanghai 201109, PR China.

Abstract

Crystallization kinetics is the key factor in controlling the polymer crystallization process and affecting crystallinity and crystalline morphology, which determine the polymer's main properties. In this work, the non-isothermal crystallization kinetics of graphene/PA10T composites are investigated by the Jeziorny method and Mo method, and the crystallization activation energy is calculated by the Kissinger method. It is found that the addition of an appropriate amount of graphene to PA10T can significantly promote the crystallization of PA10T and accelerate its crystallization rate. The Jeziorny equation does not have a linear relationship across the whole crystallization range, while the Mo equation does a good linear fitting. In addition, the crystallization activation energy decreases when the graphene content is below 1 wt.%. TGA results indicate that the addition of graphene improves the thermal stability of PA10T.

Keywords: Crystallization activation energy; Graphene; Mo method; Non-isothermal crystallization kinetics; PA10T.