Influence of hybrid system of nanofillers on the functional properties of postconsumer PET‐G–based nanocomposites

Abstract

In this article, postconsumer poly (ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate) (PET-G) foils have been modified with three types of carbon nanofillers that differ in size and shape, ie, multiwalled carbon nanotubes (MWCNTs), graphene nanoplatelets (GNP), and nanosized carbon black (nCB), thus enabling the reusage of recyclate in receiving new functional materials. The series of polymer hybrid nanocomposites have been prepared via a two-stage polycondensation process, be means of glycolysis of postconsumer PET-G foil, followed by polycondensation in the presence of carbon nanofillers. The scanning electron microscopy revealed that nanoadditives were uniformly dispersed into the whole volume of polymer matrix.The results present the synergistic effect of hybrid system of nanofillers in improving tensile properties of PET-G. It has been found that the incorporation of three types of carbon nanofillers has not affected the glass transition temperature of the polymer matrix. Moreover, the incorporation of carbon nanofillers, and the mixture of two, or even three of those, caused an improvement in thermal conductivity and thermal stability. KEYWORDScarbon-based hybrid nanofillers, glycol-modified poly (ethylene terephthalate), polymer hybrid nanocomposites, postconsumer materials, recycling

Environmentally Friendly Polymer Blends Based on Post-Consumer Glycol-Modified Poly(Ethylene Terephthalate) (PET-G) Foils and Poly(Ethylene 2,5-Furanoate) (PEF): Preparation and Characterization

“…The properties were determined based on modulus changes and the ability of attenuation as a function of temperature and frequency of load changes. Since all samples were found to be amorphous, the softening temperatures of the samples were determined using the Boetius apparatus according to the procedure described elsewhere [14,40,41].…”

Incorporation of Multiwalled Carbon Nanotubes and Graphene Nanoplatelets on the Morphology and Properties of Polyethylene Terephthalate Nanocomposites

“…This is due to the barrier effects induced by the CNT filler which is dispersed in the PET. Furthermore, the combination of both nanofillers especially multiwalled carbon nanotube MWCNTs and graphene platelet GNPs lead to enhanced mechanical and thermal properties along with electrical and thermal conductivity of the nanocomposites [9] due to their synergistic effects [10]. The hybrid system between MWCNTs and GNPs leads to promote their dispersion in the matrix as the MWCNTs may bridge GNPs, thus offer more interface area between the matrix and the fillers which subsequently bring improvement at low filler fractions for applications in highperformance structural composites [11].…”

Hybrid 3D Printing of Molten Metal Microdroplets and Polymers for Prototyping of Printed Circuit Boards Featuring Interdigitated 3D Capacitors

“…An increase in oxygen content is observed for the EDX performed on microdroplets dispensed in deionized water (Sn = 88.36 wt%, 55.39 at%, O = 1.70 wt%, 7.89 at%). Since SnO 2 has the highest Gibbs energy for forming oxides among other possibilities (SnO, CuO, and Ag 2 O) [15], the presence of high oxygen content suggests the formation of SnO 2 . Furthermore, SEM micrographs were collected, revealing the presence of SnO 2 crystals (see Fig.…”