Effect of functionalization of graphene nanoplatelets on the mechanical response of graphene/epoxy composites

Ahmadi-Moghadam, B.; Sharafimasooleh, Masoumeh; Shadlou, S.; Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬, Farid

doi:10.1016/j.matdes.2014.10.047

Cited by 248 publications

(144 citation statements)

References 21 publications

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“…3(a) [35]. The new characteristic peaks at 2927, 2843cm -1 (-CH), 1515 (N-H), and 1130cm -1 (Si-O-Si) [36,37] attributed to APTS, and importantly, peaks at 655 cm -1 belonged to Si-O-Al bonding [38,39] were depicted in Fig. 3(b), indicating that the nano-Al 2 O 3 had been modified by the APTS.…”

Section: Fi-tr Studymentioning

confidence: 92%

Fabrication of graphene oxide–alumina hybrids to reinforce the anti-corrosion performance of composite epoxy coatings

et al. 2015

Applied Surface Science

302

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Section: Fi-tr Studymentioning

confidence: 92%

Fabrication of graphene oxide–alumina hybrids to reinforce the anti-corrosion performance of composite epoxy coatings

et al. 2015

Applied Surface Science

302

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“…It influences the final properties of nanocomposites. Several studies [27,45,[51][52][53][54][55] show modification in the mechanical or electrical properties, and thus functionalised GNP can be used for a wide range of application, depending of the specific requirements such as high tensile stress, flexural strength or high electrical conductivity.…”

Section: Functionalisationmentioning

confidence: 99%

Effect of pre and Post-Dispersion on Electro-Thermo-Mechanical Properties of a Graphene Enhanced Epoxy

Poutrel

Wang

et al. 2016

Appl Compos Mater

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Graphene nanoplatelet (GNP) modified epoxy nanocomposites are becoming attractive to aerospace due to possible improvements in their mechanical, electrical and thermal properties at no weight cost. The process of obtaining reliable material systems provides many challenges, especially at larger scale (a volume effect). This paper reports on the main fabrication stages of GNP-based epoxy composites, namely (i) pre-dispersion, (ii) dispersion, and (iii) post-dispersion. Each stage is developed to show the interest and potential it delivers for property enhancement. Chemical modification of GNP is presented; functionalisation by Triton X-100 shows elastic modulus improvements of the epoxy at low particle content (≤3%). The post-dispersion step as an alignment of GNP into the epoxy by an electrical field is discussed. The electrical conductivity is below the simulated percolation threshold and an improvement of the thermal diffusivity of 220% when compared to non-oriented GNP epoxy sample is achieved. The work demonstrates how the addition of functionalised graphene platelets to an epoxy resin will allow it to act as electrical and thermal conductor rather than as insulator

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“…Another advantage is that graphene has lower cost [4][5][6] choice compared to CNTs because it can be easily made from graphite in large quantities [5]. In the literature, researchers have used various polymers as matrices to prepare the required modified graphene/polymer composites [5], the mechanical, electrical [7][8][9], thermal [9], and various other properties [10] have been extensively investigated.…”

Section: Introductionmentioning

confidence: 99%

Melt processing and characterisation of polyamide 6/graphene nanoplatelet composites

et al. 2015

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Composites of Linear Low Density Polyethylene (LLDPE) and Graphene Nanoplatelets (GNPs) were processed using a twin screw extruder under different extrusion conditions. The effects of screw speed, feeder speed and GNP content on the electrical, thermal and mechanical properties of composites were investigated. The inclusion of GNPs in the matrix improved the thermal stability and conductivity by 2.7% and 43%, respectively. The electrical conductivity improved from 10 -11 to 10 -5 S/m at 150 rpm due to the high thermal stability of the GNPs and the formation of phonon and charge carrier networks in the polymer matrix. Higher extruder speeds result in a better distribution of the GNPs in the matrix and a significant increase in thermal stability and thermal conductivity. However, this effect is not significant for the electrical conductivity and tensile strength. The addition of GNPs increased the viscosity of the polymer, which will lead to higher processing power requirements. Increasing the extruder speed led to a reduction in viscosity, which is due to thermal degradation and/or chain scission. Thus, while high speeds result in better dispersions, the speed needs to be optimized to prevent detrimental impacts on the properties.

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Effect of functionalization of graphene nanoplatelets on the mechanical response of graphene/epoxy composites

Cited by 248 publications

References 21 publications

Fabrication of graphene oxide–alumina hybrids to reinforce the anti-corrosion performance of composite epoxy coatings

Fabrication of graphene oxide–alumina hybrids to reinforce the anti-corrosion performance of composite epoxy coatings

Effect of pre and Post-Dispersion on Electro-Thermo-Mechanical Properties of a Graphene Enhanced Epoxy

Melt processing and characterisation of polyamide 6/graphene nanoplatelet composites

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