Thermal properties of doubly reinforced fiberglass/epoxy composites with graphene nanoplatelets, graphene oxide and reduced-graphene oxide. (1st May 2019)

• Record Type: Journal Article
• Authors: Rafiee, M.; Nitzsche, F.; Laliberte, J.; Hind, S.; Robitaille, F.; Labrosse, M.R.
• Is Part Of: Composites. Number 164(2019)
• Page Start: 1
• Page End: 9
• Publication Date: 2019-05-01
• Subjects: polymer composites -- Graphene -- Thermal properties -- Thermal conductivity -- Multiscale composite laminates; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2018.11.051
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: A novel manufacturing method based on Vacuum Assisted Resin Transfer Molding (VARTM) was devised to incorporate carbon nanoparticles for the enhancement of thermal properties of multiscale laminates. Several graphene-based nanomaterials including graphene oxide (GO), reduced graphene oxide (rGO), graphene nanoplatelets (GNPs) and multi-walled carbon nanotubes (MWCNTs) were used to modify the epoxy matrix and the surface of glass fibers. The thermal, rheological and morphological properties of the resulting glass fiber-reinforced multiscale composites were investigated. The thermal properties of the epoxy/nanoparticle composites were studied through thermal conductivity measurements, differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA). The thermal characterization results showed that the introduction of GNPs, GO, rGO, and MWCNTs enhanced thermal conductivity. Compared with the neat epoxy/fiberglass composite control results, improvement in thermal conductivity of fiberglass/epoxy modified with MWCNTs 0.3%, GNPs 1%, GO 2% and rGO 0.042% were 8.8%, 12.6%, 8.2% and 4.1%, respectively. It was concluded that for the same volume fraction of nanoparticles, the thermal conductivity improvement in graphene nanoplatelets-modified composites is more pronounced compared with other nanoparticles. A better dispersion of nanoparticles and a better interfacial interaction between nanoparticles and epoxy are essential in enhancing the thermal conductivity of nanocomposite materials.