Nanomaterials are those broadly defined as having tiny components with at least one measurement below 100 nm. Sometimes nanomaterials are used as thin films or surface coatings, as on computer chips or as nanowires, nanotubes, or as blobs of tiny nanocrystalline particles.
In the clothing sector special functional textiles are under development, for example self-cleaning textile surfaces or protective insulating clothing. Antimicrobial silver nanoparticles are already used in socks, shoe insoles and a few clothing textiles. By using nanostructured polymer coatings on textile surfaces, textiles and other products may be enhanced to include new properties like these listed below.
Two key factors cause the properties of nanomaterials to be special: their quantum effects and their structure. Their tiny structure means they have a greater relative surface area than other materials and this can alter or improve properties such as strength and electrical characteristics or reactivity. Their quantum effect can affect the electrical, magnetic or optical performance.
Properties vary but can include improvements such as:
- magnetic/optical performance
- electrical conductivity
- strength/elasticity
- thermal conductivity
- absorbency
This has resulted in the development of:
- harder and tougher tools
- water-repellent and anti-bacterial coatings
- wear- and scratch-resistant hard coatings
- UV absorbent and reflective transparent-looking nanosized titanium dioxide and zinc oxide in some sunscreens
- a military battle suit that that will withstand blast waves (currently being developed by the Institute of Soldier Nanotechnologies at MIT)
Nanomaterial finishes
These new technologies are available:
Nanomaterial finishes | Characteristics | Uses |
---|---|---|
ZANO |
UV-absorbers for fabrics: protects fabrics from degradation, protects against sunburn of wearer. ZANO is a fungistat. |
|
NanoGrain CeO2 |
UV-absorbers for fabrics: protects fabrics from degradation, protects against sunburn of wearer. |
|
NanoGrain TiO2 (rutile) or Optisol | Partial UV-absorbers for fabrics, protects fabrics from degradation, protects against sunburn of wearer. |