Thermal analysis and non-isothermal crystallization kinetic of PET/UiO-66 nanocomposite

The thermal and crystallization properties of poly (ethylene terephthalate) (PET) in the presence of metaleorganic frameworks (MOFs) such as UiO-66(Zr) have been systematically studied. Under the best conditions, UiO-66(Zr) functions as a key nucleating agent in the PET scheme. In this work, a merge between UiO-66 and PET was used to increase compatibility, however, the tetra oxidation of Zr4+ revealed by defects in UiO-66 was used to enhance the reaction between PET and UiO-66 as well. Additionally, PET containing varying amounts of UiO-66 were made-up. UiO-66 has high nucleation effectiveness in the matrix of PET due to its large specific surface area and coordination of Zr4+. When compared between the formation PET and PET/UiO-66 matrix, the rate of crystallization for PET/UiO-66 nanocomposite was considerably accelerated, and the temperature of crystallization for PET-UiO-66 was remarkably increased or decreased with increasing UiO-66 content, indicating that adding UiO-66 to PET accelerates crystallization. The thermal stability of PET/UiO-66 nanocomposites in terms of characteristic temperature and kinetic parameters, as well as the dispersion of UiO-66, were examined using both (DSC) and (TGA) under non-isothermal circumstances. The degrading response rate (dx/dt)p and the kinetic exponent n of PET/UiO-66 nanocomposites are estimated and analyzed. (C) 2022 The Author(s). Published by Elsevier B.V.

Automated summary

The thermal and crystallization properties of poly(ethylene terephthalate) (PET) in the presence of metaleorganic frameworks (MOFs) such as UiO-66(Zr) were systematically studied. UiO-66(Zr) functions as a key nucleating agent in the PET scheme, and adding UiO-66 accelerates the crystallization of PET.