Microstructure and elastic tensile behavior of polyethylene terephthalate-exfoliated graphene nanocomposites

Bandla, Sudheer; Hanan, Jay C.

doi:10.1007/s10853-011-5867-z

Cited by 49 publications

(49 citation statements)

References 20 publications

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“…The dispersion of only 0.07 wt% exfoliated graphene nanosheets in PET led to materials with better mechanical properties than previous melt-processed PET/graphene nanocomposites [30,31]. In addition, the properties were equivalent to those found for nanocomposites prepared via solution processing of functionalized graphene oxide at much higher loadings (~2 wt%, Table S1, Supporting Information) [9].…”

Section: Resultsmentioning

confidence: 77%

Reinforcement in melt-processed polymer–graphene composites at extremely low graphene loading level

Istrate

Paton

Khan

et al. 2014

Carbon

136

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We have prepared polymer nanocomposites reinforced with exfoliated graphene layers solely via melt blending. For this study polyethylene terephthalate (PET) was chosen as the polymer matrix due to its myriad of current and potential applications. PET and PET/graphene nanocomposites were melt compounded on an internal mixer and the resulting materials were compression molded into films. Transmission electron microscopy and scanning electron microscopy revealed that the graphene flakes were randomly orientated and well dispersed inside the polymer matrix. The PET/graphene nanocomposites were found to be characterized by superior mechanical properties as opposed to the neat PET. Thus, at a nanofiller load as low as 0.07 wt%, the novel materials presented an increase in the elastic modulus higher than 10% and an enhancement in the tensile strength of more than 40% compared to pristine PET.The improvements in the tensile strength were directly correlated to changes in elongation at break and indirectly correlated to the fracture initiation area. The enhancements observed in the mechanical properties of polymer/graphene nanocomposites achieved at low exfoliated graphene loadings and manufactured exclusively via melt mixing may open the door to industrial manufacturing of economical novel materials with superior stiffness, strength and ductility.3

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Section: Resultsmentioning

confidence: 77%

Reinforcement in melt-processed polymer–graphene composites at extremely low graphene loading level

Istrate

Paton

Khan

et al. 2014

Carbon

136

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“…Dispersion characterization has been typically studied on fractured surfaces of the nanocomposite. SEM imaging has also shown the failure of compounded PET/graphene nanocomposite under tensile loading occurring through the coalescence of brittle microfractures (Bandla and Hanan, 2012). This approach has shown the dispersed and exfoliated nature of the graphene nanoplatelets, with the long axis of the nanofiller lying parallel to the film's plane (Al-Jabareen et al, 2013).…”

Section: Microscopymentioning

confidence: 98%

Preparation, characterization, and applications of poly(ethylene terephthalate) nanocomposites

Korivi¹

2015

Manufacturing of Nanocomposites With Engineering Plastics

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“…Amorphous PET is widely used in food packaging, film technology, automotive, electrical, beverages containers and textile fibers. Very recently, the production and characterization of aPET/GNP nanocomposites with improved mechanical, electrical, thermal and oxygen barrier properties [4,10,12,25] has been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Orientation of Graphene Nanoplatelets in Thermosetting Matrices

Greco

Lionetto

Maffezzoli

2016

IEEE Trans. Nanotechnology

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A simple procedure for the alignment of graphene nanoplatelets (GNPs) in a thermosetting matrix is presented. First, the alignment of GNPs in thermoplastic fibers of amorphous polyetylene terephthalate (aPET) is achieved by a fiber spinning process. The nanocomposite fibers, obtained with a very high filler content (10 wt%), are then transferred into a reactive epoxy resin. After dissolution of aPET, the nanofillers remained oriented in the thermosetting matrix. The characterization of the obtained nanocomposites has been carried by means of different experimental techniques which provided complementary results. The proposed method has the potential to be used in the manufacturing of hierarchical composites, by introducing nanofilled microfibers into continuous fibers reinforced composites.

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Microstructure and elastic tensile behavior of polyethylene terephthalate-exfoliated graphene nanocomposites

Cited by 49 publications

References 20 publications

Reinforcement in melt-processed polymer–graphene composites at extremely low graphene loading level

Reinforcement in melt-processed polymer–graphene composites at extremely low graphene loading level

Preparation, characterization, and applications of poly(ethylene terephthalate) nanocomposites

Orientation of Graphene Nanoplatelets in Thermosetting Matrices

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