Nanomaterials are a set of substances in which at least one dimension is less than approximately 100 nm which is approximately 100,000 times smaller than the diameter of a human hair.
Uses of Nanomaterials:
Nanomaterials are being used in a number of commercial consumer products such as stain-resistant and wrinklefree textiles, cosmetics, sun screens, paints etc. A few more examples are –
- There are novel UV blocking coatings on glass bottles which protect beverages from damage by sunlight.
- Nanoscale titanium dioxide is finding applications in cosmetics and self cleaning windows.
- Using butyl rubber nano-clay composites, long lasting tennis balls are made.
Classification of Nanomaterials:
- Zero dimensional spheres and clusters
- One dimensional nanofibres, wires and rods
- Two dimensional films, plates and networks
- Three dimensional nanomaterials.
- Large fraction of surface atoms
- High surface energy
- Spatial confinement
- Reduced imperfections