Graphene is a material consisting of only a single atom thick layer of carbon arranged in a hexagonal lattice. It is a unique material with extraordinary properties, such as incredible strength, great electrical and thermal conductivity and high flexibility to mention a few. Adding graphene to composites can transfer these properties into new and improved materials with increased mechanical strength, better abrasion resistance and antistatic properties.
Informational video about graphene starring one of the fathers of graphene Sir Konstantin Novoselov. The video is narrated in Danish and produced by DR.
Danish Graphene materials are functionalized to be compatible with bulk materials meaning the transfer of the graphene properties to another material is much better. The functional graphene is much easier to handle and does not agglomerate making it easier to disperse in a composite, which is essential for the best performance. With our products you get the most effect from adding graphene to increase mechanical performance and abrasion resistance of your materials.
A single layer of graphene only absorbs 2.3% of light making it almost completely transparent. This means that a thin layer on for example glass can produce transparent conductive glass surfaces which can give new opportunities in construction and architecture. With just a few layers of graphene it even gives UV protection to protect either the polymer material it is combined with from UV degradation or protect light sensitive components.
The final graphene product is produced as a dry material that is easy to mix with other materials. The added functionalisation assists in dispersing the graphene as it increases the spacing between the flakes so they do not reform into graphite. Increased solubility and dispersion are key to achieving the best performance of your products.
We have access to equipment to mix the desired graphene material with your polymer materials and will prepare the solution with the exact properties you are looking for. This includes custom functionalisation and analysis of the composite material which gives you a guarantee for the product.
Choosing your graphene
There is a difference whether you are working with epoxies, polyurethanes or something completely different. Whichever material you are working with we can create the graphene best suited for it.
When developing your new products and optimizing properties you might want to see if the properties of graphene could give your product an extra boost. But how do you choose the right graphene material? The graphene market can be difficult to navigate if you do not have pre-existing knowledge about the different types of graphene materials available to you.
You will need to look at your product and the application it is used for, are you interested in increased mechanical performance, increased electrical conductance or something else? How can the properties of graphene help improve your product? For increased mechanical performance you will require a good interaction between the graphene and the surrounding material of your product. To achieve this a graphene material with a high degree of functionalisation is well suited as it gives a high degree of dispersion of the graphene in your product and facilitates strong interactions. To increase this interaction to the fullest you need to have the right surface modification of the graphene that matches the chemical composition of your product.
If instead you are more interested in increasing electrical conductivity a low functionalisation is best as this keeps more of the graphene network intact for electron transport. For these applications a higher concentration of graphene is necessary, than for mechanical performance, as you will need to have contact between the graphene flakes for electron transport, but with the functionalised material you get a better dispersion which decreases the likelihood of agglomeration, which would make it impossible to conduct electricity through anything.
No matter the application or the material you are working with we have the expertise to guide you through choosing the right type of graphene.