Graphene-enhanced anti-corrosion system deployed in bridges and wind power towers across China

China-based The Sixth Element Materials launched its graphene-zinc anti-corrosion primer back in 2015 together with his partner Toppen Technology, and the company has since performed extensive testing. TSE updates us that the material has now been deployed in China and has been used to cover several bridges and wind-turbines steel towers.

Anti-corrosion 2k-graphene-epoxy coating in China (TSE)

The Sixth Element graphene type SE1132 is added to Toppens 2k-epoxy primer system. TSE says that by adding 1% of graphene, one could reduce the zinc content in current anti-corrosion coatings from ~80% to 25%, and the the corrosion protection time is doubled. Reducing the zinc also means that this solution is less polluting. The main cost savings comes from the prolonged coating life which means that the time between coating renewal (which requires a lot of labor) is doubled.

Manchester U team shows the influence of pre- and post-dispersion on the properties of GNP-enhanced epoxy

Researchers from The University of Manchester have conducted a study that presents a review of the three steps of manufacturing graphene/epoxy nano-composites. The possible pre-treatments of nanoparticles before dispersion are introduced, and their influence on the final nanocomposite properties discussed.

SEM images of fracture surface of aligned GNP based epoxy compositeSEM images of fracture surface of aligned GNP based epoxy composite

The study stresses interesting results, among which are improvements in various characteristics via the use of GNPs. For instance, an improvement of the thermal diffusivity of 220% was seen when compared to a non-oriented GNP epoxy sample. The work demonstrates how the addition of functionalized graphene platelets to an epoxy resin will allow it to act as electrical and thermal conductor rather than as insulator. The mechanical properties of functionalized GNP/epoxy composites show improvement of the interfacial bond.

Thomas Swan launches a high-performance graphene intermediate product for coatings

Thomas Swan logoThomas Swan has announced the launch of a high-performance graphene intermediate product for coatings formulators. The new Elicarb Graphene product is a cost effective, stable, easy to handle dispersion of Elicarb Materials Grade Graphene powder for formulation into epoxy-based coating formulations. The product is available now in liter quantities for testing and evaluation.

Thomas Swan has established a 20 tonne per year capability for the manufacture of Elicarb Graphene and Elinova Boron Nitride products at its UK manufacturing site in Consett, County Durham. Elicarb Graphene Epoxy Dispersion is a high performance intermediate product which is intended for further optimization and incorporation into customers’ existing proprietary coating systems. The graphene dispersion is targeted at improving corrosion resistance, thermal conductivity, chemical barrier and mechanical resistance in industrial coatings.

Graphene-Enhanced Composite Materials Improve Lightning-Strike Performance

Haydale logoThe following is a sponsored post by Haydale

Haydale Composite Solutions are pleased to announce the production of graphene-enhanced electrically-conductive carbon fibre-reinforced composite materials with improved resistance to damage from a severe lightning-strike event.

Carbon fibre-reinforced composite materials, as used in many aerospace structures and components, are vulnerable to damage from lightning strikes. However, the addition of functionalised nano materials to the epoxy resin through the use of Haydale’s patented plasma functionalisation process, HDPlas™, has been demonstrated to significantly improve the electrical conductivity of the epoxy resin which allows the laminate to dissipate the energy of the lightning strike throughout the structure thereby reducing the localised heating which causes damage in a lightning-strike event. Importantly, these improvements have been achieved without any major issues with existing manufacturing processes.

An Aerospace Graphene Industry Base to be built in China

The government of Xiangyang, China, has recently signed a strategic cooperation agreement with the Hubei Institute of Aerospace Chemical Technology. Under the agreement, the two sides will jointly build the China Aerospace Graphene Industry Base in Central China.

Graphene has many potential applications in the aerospace industry, like strong and durable composites, high-performance sensors, various functional coatings, batteries, supercapacitors and more. Recent examples of progress made in this field include a graphene-based UAV made by UK collaboration, a graphene-enabled composite with potential uses in the automotive and aerospace industries, a collaboration between Versarien and the Spain-based CT Engineering to develop graphene-enhanced composite components for the aerospace industry, a novel coating of graphene nanoribbons in epoxy, that was proven effective at melting ice on a helicopter blade and more. To read more on the latest graphene advances in the aerospace field, click here.