Description of the product/technology that incorporates graphene
In this technology, we have developed a series of multifunctional graphene oxide nanohybrids, that act as excellent nano fire retardant when they are incoporated to polymeric materials. We have applied such functionalized graphene oxide in polymeric systems, such as epoxy resins, which have shown significant improvements both in the flame retardancy and the mechanical properties of the polymer nanocomposites with functionalized graphene as compared to the reference polymer nanocomposite, composed of the polymer and non-functionalized graphene oxide. This technology creates a new window on high value-added application of functionalized graphene oxide, in particular in the polymeric materials field. In addition, by functionalization, it has been found that the electrical and thermal properties of graphene can be adjusted.
Compared with the reference product (graphene), the new technology has:
- Multifunction. Apart from the intrinsic properties of graphene, it has new properties, such as fire retardancy.
- High efficiency. The new technology showed improved performance on both reinforcement and fire retardancy.
- Good dispersion. In the polymer matrix, it has better dispersion than conventional graphene.
Improvement of composites fire retardancy properties in order to improve their safety and meet the technical requirements for their use in a variety of sectors.
New technology provide further improved mechanical properties on 22% (impact strength) and improved flame retardancy on 40% , as compared to the conventional graphene, as well as a 48.2% in the CO production rate and 37.3% in the smoke production rate.
Figure 1: Comparison of the impact resistance of the epoxy resin (black bar), epoxy resin with graphene oxide (red bar) and epoxy resin with functionalized graphene oxide (blue bar).
Figure 2: Comparison of the heat release rate of the epoxy resin (black line), epoxy resin with graphene oxide (red line) and epoxy resin with functionalized graphene oxide (blue line).
Figure 3: Comparison of the CO (left) and smoke (right) production rates upon burning the epoxy resin (black line), epoxy resin with graphene oxide (red line) and epoxy resin with functionalized graphene oxide (blue line).