Skip to main content

Graphene Water Dispersion and Usage Areas

Since graphene was discovered in 2004, the study of graphene has never ceased. Graphene is a two-dimensional network carbon nanomaterial. The carbon atoms in graphene form a unique two-dimensional hexagonal honeycomb lattice structure by sp2 hybridization. This monatomic layer structure makes graphene the thinnest and strongest material in the world. Graphene also has excellent physical and chemical properties, such as mechanical properties, thermal properties, electrical properties, and optical properties. Therefore, graphene has a wider value and prospects for practical application compared with other members of the carbon nanomaterials family, namely zero-dimensional fullerenes and one-dimensional carbon nanotubes.
In recent years, graphene has often been combined with polymer materials, ceramic materials, and metal materials to prepare graphene-reinforced composites, which not only makes the physical and chemical properties of the composite materials be greatly improved, but also expands the application of graphene in the field of optoelectronic materials, biosensors, and catalysts. In some applications water dispersion of graphene is needed to use and gives better properties to the materials.
Now let’s look at where Graphene Water Dispersion can be used. Dispersions of graphene are advantageous for the use of graphene in numerous industrial applications, such as: use as additive or component of elastomeric compositions for tires. If graphene level is 1-1.5% in the dispersion many superior properties can be achieved like an improved gas barrier effect, with consequent increase of impermeability, causing the tire to deflate more slowly; improvement of the mechanical dynamic properties, in particular rolling resistance; increase of thermal conductivity, useful for heat dissipation; increase of electrical conductivity, useful for the dissipation of electrostatic energy.
If graphene water dispersions are used as additive or component of paints and silicon compositions, where graphene levels of 20-30% by weight, these properties can be obtained: increase of thermal conductivity for heat dissipation, increase of electrical conductivity, to reach conductive compounds; gas and liquid barrier effect with consequent increase of impermeability, to give anticorrosion and antifouling properties.
In textiles if graphene levels reach 40% in water dispersion good electrical conductivity for producing intelligent textiles, good thermal conductivity, liquid barrier effect, flame retardant properties and IR shielding can be obtained.
Labels:

Comments

Post a Comment

Popular posts from this blog

Titanium Carbide Powders and Applications

Titanium carbide which has the chemical formula of TiC attracted great interest for many structural applications due to its extremely high melting temperature, high hardness, high chemical resistance and good electrical conductivity. Therefore titanium carbide can be used in cutting tools, grinding wheels, wear-resistant coatings, high temperature heat exchangers, magnetic recording heads, turbine engine seals, and bullet-proof vests, etc. In addition, a promising field of application comprises plasma and flame spraying processes in air, where titanium carbide-based powders show high-phase stability. TiC(Titanium Carbide Powder) (325 mesh, 99,9+%)  can also be used in biomedical implant devices. Materials used for biomedical implant devices must satisfy a variety of property demands, which are often mutually exclusive. Further, different parts of a device demand different material properties. These factors often make it difficult to manufacture a medical device using a...
Post a Comment
Read more

New Way of Deaf-Mute Communication with 3D Graphene

Image retrieved from: http://blogs.rsc.org/cc/2016/09/01/3d-graphene-adds-dimension-to-deaf%E2%80%93mute-communication/ Chinese scientists have developed wearable electronic device with conductive 3D graphene structure to translate sign language into written text. This technology can be applied by injecting graphene ink from a syringe under printed electronic field. For medical field, such as adhesive patches which determine heart, brain signal and neural activity, wearable and bio-integrated medical devices are very important. Due to noticeable properties of cast graphene, for example a 2D honeycomb lattice, excellent mechanical and electrical behaviors, Graphene has an important material in warble technology. However, it is difficult to preserve advantages of Graphene material in a 3D material which has an information about forces from every angle. Yanlin Song  and co-workers at the University of the Chinese Academy of Sciences, Beijing, and Shenyang Jianzhu University...
Post a Comment
Read more

Carbon Nanotubes Doped with Graphene Nanopowder and Applications

Carbon nanotubes and graphene are different forms of carbon atom based materials. They have different properties and can be used in various applications. But what happens if we use them as a hybrid structure? The excellent mechanical, physical, and chemical properties of low-dimensional carbon materials like graphene and carbon nanotube have enabled them as promising building blocks for three-dimensional nanoarchitectures. In this regard, extensive interests have been attracted to synthesize graphene and carbon nanotube hybrid structures. Earlier works suggested that  Carbon Nanotubes Doped with Graphene Nanopowder (52 wt% Graphene )  is a promising solution for quick energy dissipation, which could enhance interface thermal conductivity of the ‘building blocks’ for future nanoscale mechanical and electrical devices. In the electricity perspective, it is found that ‘CNT pillared-graphene’ system would extend the excellent electrical conductivity of graphene and nanotube to ...
Post a Comment
Read more