Smart Materials Flashcards
1
Q
Name five types of smart materials
A
Photochromic pigments Thermochromic pigments Shape memory polymers Shape memory alloys Polymer gels
2
Q
How do hydrogels work?
A
Hydrogels are made of cross linked polymer chains that trap water molecules
3
Q
What do thermochromic pigments do?
A
Change colour in response to temperature
4
Q
What are photochromic pigments?
A
Change colour in response to light
5
Q
What is a shape memory alloy?
A
A mixture of metals that regain their original shape when heated. Used in glasses frames and vascular stents
6
Q
What is a shape memory polymer?
A
Plastic that regains its original shape when heated. Used in car bumpers and medical sutures
