Processing and Characterization of PET Composites Reinforced With Geopolymer Concrete Waste

Abstract

In the present study, poly (ethylene terephthalate)-based composites were produced and characterized. These composites were composed by poly (ethylene terephthalate) (PET) reinforced with geopolymer concrete waste (GCW). Both untreated (U-GCW) and treated with oleic acid (OA) geopolymer concrete waste (T-GCW) were used in the production of the composites. The PET/GCW ratios used for either treated or untreated GCW bodies were 80/20 (wt%), 60/40 (wt%) and 50/50 (wt%). Chemical compositions were assessed by X-ray fluorescence spectroscopy (XRF), crystallinity by differential scanning calorimetry (DSC), thermal stability by thermogravimetry (TGA), microstructure by field emission gun scanning electron microscopy (FEG-SEM) with energy dispersive X-ray spectroscopy (EDS), and mechanical properties were assessed by compression tests. Fourier transform infrared spectroscopy (FT-IR) was used to check the efficiency of the treatment with OA, as well as the interaction between PET and GCW. The T-GCW PET composites showed better thermal, physical, and mechanical properties, for non-structural applications, when compared to U-GCW.

Functional Finishing of Polyester Fabric Using Bentonite Nano-Particles

“…While the peaks at 2961, 2917 and 2852 cm -1 are corresponding to CH 2 Stretching vibrations, the strong peaks at 1711 and 1468 cm -1 are related to the asymmetrical and symmetrical vibrations of the carboxylic ester C=O groups respectively. The peaks at 1578, 1504 and 720 cm -1 are assigned to the C=C of the benzene ring, while the peak at 1339 is due to bending and wagging vibrational modes of the ethylene glycol segment [11]. The characteristic peaks at 1241, 1094 and 1017 cm -1 are due to C-O, C-O-C and C-OH respectively, while the peaks appeared at 871 and 847 cm -1 are related to the p-substituted benzene ring Figure 5(a).…”

Modelling of the adsorption of chlorinated phenols on polyethylene and polyethylene terephthalate microplastic

“…1d) were detected at 2956 (C-H stretch from -CH 2 and -CH 3 groups), 1713 (C=O stretching of the keto group), 1409 (C-O stretching and O-H group deformation), 1238 (terephthalate group -OOCC 6 H 4 -COO), 1091 (vibrations of the ester C-O bond from poly(ethylene terephthalate)) and 1016 cm -1 assigned for in-plane vibration of benzene. 32 In addition to the FTIR characterisation, the microplastic PE particles were characterised by stereomicroscopy ( Fig. S-1a-c of the Supplementary material).…”

Entwicklung einer Methode zur nichtinvasiven Messung des Absolutdrucks in teiltransparenten Gebinden mit karbonisierten Getränken

“…Die Wirkungsquerschnitte der Gase wurden mithilfe der High‐Resolution Transmission Molecular Absorption(HITRAN)‐Datenbank simuliert. Das Spektrum von PET wurde mittels einer UV‐Vis‐NIR‐Messung aufgenommen und durch Daten aus ergänzt.…”