Graphene
Graphene, known for its remarkable properties, has emerged as a revolutionary material with vast potential across various industries. Its exceptional attributes include outstanding mechanical strength, electrical and thermal conductivity, unique optical and electronic characteristics, impenetrability, ultra-thin particle geometry (bi-dimensional micro platelets), as well lightness.
Industries that have emerging uses of graphene include:
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- Fibre-Reinforced Plastics
- Composites and Engineered Materials
- Polymers (including plastics, rubbers and elastomers)
- Construction (concrete/cementitious materials)
- Coatings and Paint Systems
- Inks and Toners
- Adhesives & Sealants
- Aerospace
- Energy Storage
- Transportation
- Medical Technologies
- Water & Air Clean Solutions
- Fillers, Putties and Plasters
- Metal Surface Treatment Products
- Non-metal Surface Treatment Products
- Laboratory Chemicals
- Lubricants and Greases
- Metal Working Fluids
- Printing and Recorded Media Reproduction
- Additive Manufacturing (3D Printing)
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PureGRAPH® is a high performing graphene additive made of pristine graphene platelets or micro flakes. The PureGRAPH product range is characterised by its large platelet size, high aspect ratio, low defect levels and batch-to-batch consistency; owing to its advanced manufacturing, strict quality control and selected raw materials for its processing.
Designed to be dispersed in a broad range of materials, including plastics, composites, rubber and elastomers, cement and concrete, as well as inks and coatings.
Our product range includes a growing list of graphene additives for masterbatch, solvent base and water base binder systems as well as cementitious formulations.
• PureGRAPH® powder structure additives
• PureGRAPH® AQUA dispersed additives (water base paste for easier dispersion)
• PureGRAPH® master-batch additives for Low density Polyethylene (LDPE), High density polyethylene (HDPE), Ethylene Vinyl Acetate (EVA).
The presence of oxygen within PureGRAPH® enables easy dispersion in aqueous and polar solvents. This oxygen functionality at the surface provides dispersibility similar to graphene oxide, while retaining the conductivity of graphene through the unfunctionalized layers within the platelet. PureGRAPH® is available in a range of lateral sizes from 70 μm down to 5 μm (D50).
A wide variety of applications have been developed, with more emerging every day, proving that graphene is a material of the future. Adding graphene to products enhances the properties and performance of engineered materials and technologies.
Did you know?
Graphene was discovered in 2004 by Andre Geim and Konstantin Novoselov who were awarded the Nobel Prize in Physics in 2010 for their work. It is a bi-dimensional material composed of a single layer of carbon atoms arranged in a hexagonal pattern. It is extremely thin, a million times thinner than a human hair, making it the thinnest object ever created by humankind. Despite its lightweight and flexible nature, graphene is incredibly strong, being 200 times stronger than steel. Additionally, it conducts electricity more efficiently than most other materials.
Graphene is the strongest material ever tested, with an intrinsic tensile strength of 130 GPa (19,000,000 psi) with representative engineering tensile strength of ~50-60 GPa for stretching large-area freestanding graphene.
Its Young’s modulus (stiffness) is close to 1 TPa (150,000,000 psi). Large-angle-bent graphene monolayer has been achieved with negligible strain, showing mechanical robustness of the two-dimensional carbon nanostructure.
Even with extreme deformation, excellent carrier mobility in monolayer graphene can be preserved.
Graphene has a theoretical specific surface area (SSA) of 2630 m2/g. This is much larger than that reported to date for carbon black (typically smaller than 900 m2/g) or for carbon nanotubes (CNTs), from ~100 to 1000 m2/g and is similar to activated carbon.
Graphene is the only form of carbon or solid material in which every atom is available for chemical reaction from two sides due to its bi-dimensional structure.
Graphene can self-repair holes in its sheets, when exposed to molecules containing carbon, such as hydrocarbons. Bombarded with pure carbon atoms, the atoms perfectly align into hexagons, completely filling the holes.
