Nanotextiles Flashcards
What is the definition of nanotextiles?
The Design, characterisation, production and application of structures, devices and systems
by controlling shape and size at nanometer scale, (1 Billionth of something)
What size is a nanometer?
1 nanometer (1nm)= 1/1,000,000,000 of a meter and about is about 80,000 ;mes smaller than a human hair.
Why use nano? What properties can be changed at a nano scale?
When a bulk material is divided into small size particles, the individual particles behave in a different way compared to those of the bulk material.
-Nano materials has higher surface area which changes properties like optical, flexibility, strength, etc.
What are some examples of strong properties in nanofibres?
Super strong fibres when incorporating carbon nano tubes.
• Super UV absorbers
• Stain proof/self clean
• Releasing ability of vitamins, fragrance or drugs
How are nanotextiles incorporated in nanoelectronics?
They’re Based on giant magneto-resistance.
- new semi-conductor laser
- computer hard disk drives.
Name some examples of nanotextiles used in nanomaterials
- Nanostructure ceramics
- glasses with scratch resistant nano-coatings
- UV Absorbing nano-Particles
Name some examples of nanotextiles in nano-biology
- Cancer fighting drugs
- diagnosis and treatment of ageing
What are nanofibres used in
Nanofibers are used in fabrics, Intelligent clothing, Sensors.
What size is a nanoFIBRE
Electrospun nanofibres have fibre diameters that are 5 – 10 times smaller than smallest available fibre
What are two characteristics of nanofibres?
- High surface area
- high porosity
- Ultra-thin, light weight material
- Membrane-like textile
- Soft touch
What are nanofibres used for, and name 4 examples
Nanofibers are used in fabrics, Intelligent clothing, Sensors.
Examples
-Separation membrane
-Biomedical applications
-Structural elements in artificial organs
-Protective clothing
What are the advantages of finishes of nanocapsules
- stain-resistant
- hydrophilic
- anti-static
- wrinkle resistant and shrink proof abilities.
What are the advantages of Nanoparticles
can break harmful and toxic chemicals and biological
agents.
What are the advantages of nano fibres?
-Flexibility and surface functionalities
– Bigger surface area
– Superior mechanical performance (stiffness and tensile strength)
What can finishing with nanoparticles do? What can this be used for?
Finishing with nanoparticles can convert fabrics into sensor-based materials.
– If nanocrystalline piezoceramic particles used then fabric can convert mechanical forces into electrical monitoring of bodily
functions such as heart rhythm and pulse
Name 3 composites that can be used with nanoparticles
- Clay nanoparticles
- Carbon nanofibres
- nano particles with metal oxides
What are the properties of carbon nanofibres?
4
Carbon nanofibres:
- increases the fibres tensile strength
- carbon black nano particles have high abrasion resistance and durability
- chemical resistance
- conductivity
What are the properties of clay nanoparticles?
- electrical, heat & chemical resistance
- can block UV light
- flame retardant
- anti-corrosive
What are the properties of nanoparticles with metal oxides?
are anti-microbial
self-decontaminating
UV blocking applications for military & health.
Name two examples of commercial nano textiles and what they do.
The Nano pel® repels stains, comfort and breathability.
Nano dry® wicking properties (moves perspiration away from the body while drying quickly)
What are the two areas of nanotechnology that will be developed?
1) upgrading functions and performances
2) developing smart and intelligent textiles with new sensory functions; home, security.
