Smart Materials new materials Flashcards
Smart materials
Smart materials can change properties based on the environment
Photochromic materials
Change colour in response to light
Thermochromic materials
Change colour in response to changes in temperature
Electroluminescent materials
Produces light in response to electric current
Fluorescent materials
Produces light in response to UV light
Phosphorescent materials
Produces light in response to a light source that was exposed to it but is now removed (glow in the dark material)
Piezoelectric materials
Produces mechanical energy in response to electric current and vice versa
Thermoelectric materials
One side of a material is heated while the other is cooled in response to electric current
Magneto-rheological fluids
Fluids that become solid in response to magnetic fields
Nanotechnology
Materials that are atomic and are used within molecular modifications
Aroma pigments
These are inks / paints that produce an aroma when scratched. They are popular in ‘scratch and sniff’ products, such as perfume samples etched into women’s magazines. The reader scratches the sample aroma pigment, releasing an aroma matching the selected perfume.
Cornstarch polymers
Replaced oil based thermoplastics in packaging that are biodegrade and environmentally friendly BUT BREAKS DOWN IN WATER
Paper foam
Made from starch based fibres it is scratch resistant and biodegradable for packaging
Potatopak
is made of potato starch. It is used for biodegradable disposable trays, plates, bowls, cups and containers. After use it can be composted, used for pig food or worm food.
Carbon fibres
Thin strips of carbon fibre can be used to coat other materials in order to make them stronger and doesn’t add any weight (light weight and makes stuff stronger)
