N,N-Dimethylformamide (DMF) usage in epoxy/graphene nanocomposites: problems associated with reaggregation

Wei, Jiacheng, Saharudin, Mohd, Vo, Thuc and Inam, Fawad (2017) N,N-Dimethylformamide (DMF) usage in epoxy/graphene nanocomposites: problems associated with reaggregation. Polymers, 9 (6). p. 193. ISSN 2073-4360

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Official URL: http://dx.doi.org/10.3390/polym9060193

Abstract

DMF is one the most commonly-used solvents for preparing graphene nanocomposites. Various processing variables for DMF are being used for the preparation of epoxy/graphene nanocomposites. Whilst the emphasis of all of these reported studies are on the improvements in mechanical, and other properties, of the epoxy/graphene nanocomposites, there is no study investigating how DMF affects the processing and how it is associated with the final properties of the nanocomposites. In this work, different dosages of DMF have been used to prepare nanocomposites. Mechanical testing, X-ray diffraction (XRD), dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) have been used to analyze the effectiveness of DMF dosage on the properties of processed nanocomposites. Larger dosages of DMF are not always ideal for dispersing graphene as it promotes reaggregation of graphene during the processing.

Item Type: Article
Uncontrolled Keywords: N,N-dimethylformamide (DMF); epoxy; graphene; reaggregation; nanocomposites
Subjects: F200 Materials Science
H300 Mechanical Engineering
H900 Others in Engineering
J400 Polymers and Textiles
J500 Materials Technology not otherwise specified
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Fawad Inam
Date Deposited: 30 May 2017 13:18
Last Modified: 30 May 2017 14:19
URI: http://nrl.northumbria.ac.uk/id/eprint/30868

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