Content area
Abstract
Noncovalent functionalization was used to modify the graphene nanosheets via π–π stacking of pyrene-terminated molecule (Py-LC), resulting in an intercalated layer structure incorporated with about 45 wt% of Py-LC. The organically modified graphene (Py-LC-rGO) has a better dispersion in the PET matrix compared with that without modification. Consequently, it remarkably accelerates the crystallization of PET. Moreover, the nucleation ability of Py-LC-rGO is even stronger than that of commercial nucleation agent, sodium benzoate, leading to a thicker lamellar crystals and denser stacking of lamellae. Accordingly, the impact toughness of such a composite is improved to be nine times as that of neat PET, which can be a promising candidate as nanofiller for PET.
Details
1 Department of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China; Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, People’s Republic of China; National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou, People’s Republic of China
2 Department of Materials Engineering, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China