NeoGraf's Graf-X series of graphene nanosheets and precursors are said to provide enhanced mechanical strength, corrosion resistance, electrical conductivity, thermal performance and reliability in a range of coatings, adhesives, sealants, and elastomer applications.
NeoGraf Solutions, a developer and manufacturer of high-performance natural and synthetic graphite flakes and powders, has launched a series of new Graf-X graphene nanosheets (GNP) and graphene precursors (GP). According to the company, these additive materials provide enhanced mechanical strength, corrosion resistance, electrical conductivity, thermal performance, and reliability in a wide range of coatings, adhesives, sealants, and elastomer (CASE) applications.
Graphene is a single layer of carbon atoms arranged in a hexagonal matrix. It is strong and thin, and is said to have the highest electrical and thermal conductivity. GNPs are ultra-thin, multilayer graphene nanosheets, and GPs are raw materials specifically designed for mass production of graphene products through further processing. NeoGraf Solutions hopes to expand production scale for other graphene producers through its GP.
Graphene products are used in various applications, and according to the company, the market is growing. In marine coatings, GNP is used as an anti-corrosion agent, and it is reported that it can improve the fuel efficiency of ships by reducing the resistance caused by biological fouling on the hull. They also prevent crack propagation in adhesives and are said to reduce wear in lubricant applications more than typical graphite. In addition, advanced graphene can be used as a non-toxic alternative to corrosion-resistant materials containing chromium, cobalt, and cadmium. Graphene products can be used as cement additives for construction and construction, automotive foam insulation products and energy storage additives for electric vehicles. They can also be used as conductive additives for the cathode and anode of alkaline and lithium ion batteries.
"Graf-X graphene nanosheets increase the strength of concrete by 20% or more with a graphene loading of 1%. This is not possible in a graphite additive solution," said Jon Taylor, NeoGraf's product manager. He added: “In many cases, such as composite materials, it is necessary to add 5-40% by weight of graphite additives to improve electrical, thermal or mechanical properties, while graphene can achieve similar benefits at <5% loadings— -Some cases are as low as 0.5%."
NeoGraf's production facility in Lakewood, Ohio is equipped with automated and continuous production equipment for Graf-X graphene additives. Image source: NeoGraf solution
According to reports, NeoGraf's Lakewood, Ohio plant can produce more than 750 metric tons of GNP and approximately 1,300 metric tons of GP annually. Taylor said this capability sets the company apart from other graphene manufacturers that produce an average of 10 metric tons per year. Taylor estimates that in the next five to ten years, the graphene market will require approximately 7,000 metric tons per year to support applications in development and commercial applications.
Taylor concluded: "Graf-X graphene nanosheets can provide the performance advantages of graphene demonstrated in laboratory-scale demonstrations, meeting the quantity, quality, and cost required by industry-changing practical applications."
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